refactor: merge cas get/cat into get, default hides timestamp

- Remove `cas cat` command
- `cas get` now returns {type, payload} by default
- Add `--timestamp` flag to include timestamp

Refs #328

.gitignore

@@ -9,3 +9,4 @@ bunfig.toml
 xiaoju/
 solve-issue-entry.ts
 packages/workflow-template-develop/develop.esm.js
+.DS_Store

develop-entry.ts

@@ -1,16 +0,0 @@
-import { createCursorAgent } from "./packages/workflow-agent-cursor/src/index.js";
-import { createWorkflow } from "./packages/workflow-runtime/src/create-workflow.js";
-import {
-  buildDevelopDescriptor,
-  developWorkflowDefinition,
-} from "./packages/workflow-template-develop/src/index.js";
-
-const agent = createCursorAgent({
-  command: "/home/azureuser/.local/bin/cursor-agent",
-  model: "auto",
-  timeout: 300_000,
-  workspace: null,
-});
-
-export const descriptor = buildDevelopDescriptor();
-export const run = createWorkflow(developWorkflowDefinition, { adapter: agent, overrides: null });

docs/architecture.md

@@ -8,7 +8,7 @@
 
 A workflow engine that executes single-file ESM bundles. Each workflow is a self-contained `.esm.js` file identified by its XXH64 hash (Crockford Base32). No daemon — processes start on demand and exit when done.
 
-The implementation lives in **15** Bun workspace packages under `packages/`, using the `workspace:*` protocol.
+The implementation lives in **21** Bun workspace packages under `packages/`, using the `workspace:*` protocol.
 
 ## Package map
 
@@ -26,10 +26,13 @@ Grouped by responsibility (npm name → folder).
 | CLI | `@uncaged/cli-workflow` → `cli-workflow` | `uncaged-workflow` binary (depends on engine, registry, CAS, protocol, util, runtime). |
 | Agent adapters | `@uncaged/workflow-agent-cursor` → `workflow-agent-cursor` | `AgentFn` via `cursor-agent` CLI + workspace extraction. |
 | | `@uncaged/workflow-agent-hermes` → `workflow-agent-hermes` | `AgentFn` via `hermes chat` CLI. |
+| | `@uncaged/workflow-agent-office` → `workflow-agent-office` | `AdapterFn` via `office-agent` CLI; generates or edits Word documents, stores outputs per threadId. |
+| | `@uncaged/workflow-agent-docx-diff` → `workflow-agent-docx-diff` | `AdapterFn` via `docx-diff` CLI; produces Word-format diff reports for document edit workflows. |
 | | `@uncaged/workflow-agent-llm` → `workflow-agent-llm` | `AgentFn` via OpenAI-compatible HTTP (`LlmProvider` from runtime). |
 | Agent shared | `@uncaged/workflow-util-agent` → `workflow-util-agent` | `buildAgentPrompt`, `spawnCli` for CLI-backed agents. |
 | Templates | `@uncaged/workflow-template-develop` → `workflow-template-develop` | Develop workflow definition, roles, descriptor builder. |
 | | `@uncaged/workflow-template-solve-issue` → `workflow-template-solve-issue` | Solve-issue workflow definition, roles, descriptor builder. |
+| | `@uncaged/workflow-template-document` → `workflow-template-document` | Document generation/editing workflow definition (writer + differ roles, moderator table, descriptor). |
 | Dashboard | `@uncaged/workflow-dashboard` → `workflow-dashboard` | Private Vite + React app (`src/main.tsx`); only `react` / `react-dom` dependencies — no workspace packages. |
 
 ## Dependency graph (workspace packages)
@@ -265,4 +268,4 @@ Tags are 8-char Crockford Base32 (40-bit random), one per call site. `grep "4KNM
 | **Single-file ESM** | Hash = version, self-contained bundle |
 | **No daemon** | OS handles process lifecycle |
 | **Crockford Base32** | Filesystem-safe, readable, compact |
-| **15-package split** | Clear boundaries: protocol ↔ runtime author API ↔ util/CAS/register ↔ execute ↔ CLI ↔ agents/templates/UI |
+| **21-package split** | Clear boundaries: protocol ↔ runtime author API ↔ util/CAS/register ↔ execute ↔ CLI ↔ agents/templates/UI |

docs/superpowers/specs/2026-05-18-office-agent-document-template.md

@@ -0,0 +1,387 @@
+# 设计文档：office-agent 文档生成/编辑 Workflow 体系
+
+**日期：** 2026-05-18
+
+---
+
+## 概述
+
+在 monorepo 中新增三个包，实现通过 `office-agent` CLI 生成或编辑 Word 文档的完整 workflow 体系。
+
+| 包 | npm name | 职责 |
+|---|---|---|
+| `workflow-template-document` | `@uncaged/workflow-template-document` | 纯结构：角色定义、meta schema、调度表、descriptor |
+| `workflow-agent-office` | `@uncaged/workflow-agent-office` | writer 角色执行器：调用 `office-agent` CLI |
+| `workflow-agent-docx-diff` | `@uncaged/workflow-agent-docx-diff` | differ 角色执行器：调用 `docx-diff` CLI |
+
+Template 只定义结构，不含执行逻辑。执行器与 template 解耦。
+
+---
+
+## 一、`workflow-template-document`
+
+### Thread 启动输入
+
+```typescript
+// src/types.ts
+type DocumentStartInput = {
+  prompt: string;           // 用户指令
+  inputDocx: string | null; // null = 生成模式；本机绝对路径 = 编辑模式
+};
+```
+
+start.content 为 JSON `{ prompt, inputDocx }` 或纯文本（fallback：generate 模式，整段作为 prompt）。
+
+### 角色与 Meta
+
+`WriterMeta` 使用 discriminated union，在 schema 层区分两种模式：
+
+```typescript
+const writerMetaSchema = z.discriminatedUnion("mode", [
+  z.object({
+    mode: z.literal("generate"),
+    outputDocx: z.string(),   // 生成产物绝对路径
+    sourceDocx: z.null(),
+  }),
+  z.object({
+    mode: z.literal("edit"),
+    outputDocx: z.string(),   // 修改后产物：<outputDir>/modified.docx
+    sourceDocx: z.string(),   // 原始副本：<outputDir>/original.docx
+  }),
+]);
+type WriterMeta = z.infer<typeof writerMetaSchema>;
+
+// differ：仅编辑模式执行
+const differMetaSchema = z.object({
+  sourceDocx: z.string(),
+  modifiedDocx: z.string(),
+  diffDocx: z.string(),
+});
+type DifferMeta = z.infer<typeof differMetaSchema>;
+```
+
+两个角色的 `systemPrompt` 均为 `""`。
+
+### 调度表
+
+```
+START → writer ──(mode = "edit")──→ differ → END
+               ↘(mode = "generate")→ END
+```
+
+### 公开导出
+
+template 导出两个对象供消费方使用：
+
+- `documentWorkflowDefinition: WorkflowDefinition<DocumentMeta>` — 传入 `createWorkflow` 的 `def` 参数
+- `buildDocumentDescriptor(): WorkflowDescriptor` — bundle 导出用
+
+```typescript
+// bundle 侧用法
+export const descriptor = buildDocumentDescriptor();
+export const run = createWorkflow(documentWorkflowDefinition, { adapter, overrides });
+```
+
+### 包文件结构
+
+```
+packages/workflow-template-document/
+  src/
+    types.ts           # DocumentStartInput
+    roles/
+      writer.ts        # writerMetaSchema, WriterMeta, writerRole
+      differ.ts        # differMetaSchema, DifferMeta, differRole
+      index.ts
+    roles.ts           # DocumentMeta, documentRoles
+    moderator.ts       # writerIsEditMode condition + documentTable
+    definition.ts      # documentWorkflowDefinition
+    descriptor.ts      # buildDocumentDescriptor()
+    index.ts
+  __tests__/
+    moderator.test.ts
+  package.json
+  tsconfig.json
+```
+
+### 依赖
+
+```json
+{
+  "@uncaged/workflow-protocol": "workspace:^",
+  "@uncaged/workflow-runtime": "workspace:^",
+  "@uncaged/workflow-register": "workspace:^",
+  "zod": "^4.0.0"
+}
+```
+
+---
+
+## 二、`workflow-agent-office`
+
+### office-agent CLI 接口
+
+```bash
+# 生成模式：在 CWD 生成 output.docx
+office-agent create "<prompt>" -o output.docx
+
+# 编辑模式：在 CWD 对 modified.docx 进行修改（覆写）
+office-agent edit modified.docx "<instruction>"
+```
+
+- 两个命令均为阻塞调用（CLI 内部消费 SSE，退出即完成）
+- 输出文件落到调用方设定的 CWD
+- 退出码 0 = 成功，非零 = 失败
+
+### 文件命名约定
+
+| 模式 | 文件 | 路径 |
+|---|---|---|
+| generate | 输出 | `<outputDir>/output.docx` |
+| edit | 原始副本（workflow-owned 快照） | `<outputDir>/original.docx` |
+| edit | 修改后产物 | `<outputDir>/modified.docx` |
+
+edit 模式先将 `inputDocx` 复制为 `original.docx`（不可变快照），再复制为 `modified.docx`，对 `modified.docx` 调用 CLI。agent 覆写 `modified.docx`，`original.docx` 保持不变。differ 对比这两个 workflow-owned 文件，不依赖用户原始路径。
+
+### 执行流程
+
+**生成模式（`inputDocx = null`）：**
+1. `mkdir -p <outputDir>`（`<config.outputDir>/<ctx.threadId>`）
+2. `const command = config.command ?? "office-agent"`
+3. `spawnCli(command, ["create", prompt, "-o", "output.docx"], { cwd: outputDir, timeoutMs })`
+4. 验证 `outputDir/output.docx` 存在
+5. 返回 `JSON.stringify({ mode: "generate", outputDocx, sourceDocx: null })`
+
+**编辑模式（`inputDocx ≠ null`）：**
+1. `mkdir -p <outputDir>`
+2. `copyFile(inputDocx, <outputDir>/original.docx)`
+3. `copyFile(inputDocx, <outputDir>/modified.docx)`
+4. `const command = config.command ?? "office-agent"`
+5. `spawnCli(command, ["edit", "modified.docx", prompt], { cwd: outputDir, timeoutMs })`
+6. 验证 `outputDir/modified.docx` 存在
+7. 返回 `JSON.stringify({ mode: "edit", outputDocx: modifiedPath, sourceDocx: originalPath })`
+
+### AdapterFn 实现（直接实现，不经过 runtime.extract）
+
+CLI 产出确定性 JSON，直接 `schema.parse(JSON.parse(raw))` 跳过 LLM extraction：
+
+```typescript
+export function createOfficeAgent(config: OfficeAgentConfig): AdapterFn {
+  return <T>(_systemPrompt: string, schema: z.ZodType<T>) =>
+    async (ctx: ThreadContext, _runtime: WorkflowRuntime): Promise<RoleResult<T>> => {
+      const { prompt, inputDocx } = parseStartInput(ctx.start.content);
+      const raw = await runOfficeAgent(config, ctx.threadId, prompt, inputDocx);
+      const meta = schema.parse(JSON.parse(raw)) as T;
+      return { meta, childThread: null };
+    };
+}
+```
+
+`_systemPrompt` 为 writer 角色的 systemPrompt（空字符串），实际指令从 `ctx.start.content` 解析。
+
+### 配置
+
+```typescript
+type OfficeAgentConfig = {
+  outputDir: string;        // 输出根目录，runner 在此下按 threadId 建子目录
+  command: string | null;   // null → runner 内 resolve 为 "office-agent"
+  timeout: number | null;   // null → 不设超时；单位 ms
+};
+```
+
+### 错误处理
+
+```typescript
+if (!result.ok) {
+  const e = result.error;
+  if (e.kind === "non_zero_exit")
+    throw new Error(`office-agent failed (exit ${e.exitCode}): ${e.stderr}`);
+  if (e.kind === "timeout")
+    throw new Error("office-agent: timed out");
+  // "spawn_failed"
+  throw new Error(`office-agent: spawn failed: ${e.message}`);
+}
+if (!existsSync(expectedPath))
+  throw new Error(`office-agent: output file not found: ${expectedPath}`);
+```
+
+### packageDescriptor
+
+```typescript
+// src/package-descriptor.ts
+export const packageDescriptor: PackageDescriptor = {
+  name: "@uncaged/workflow-agent-office",
+  version: "0.1.0",
+  capabilities: ["office-agent-cli", "docx-generate", "docx-edit"],
+  configSchema: {
+    type: "object",
+    required: ["outputDir"],
+    properties: {
+      outputDir: { type: "string", description: "Root directory for workflow outputs." },
+      command:   { anyOf: [{ type: "string" }, { type: "null" }], description: "Path to office-agent CLI; null uses PATH." },
+      timeout:   { anyOf: [{ type: "number" }, { type: "null" }], description: "Timeout in ms; null means no limit." },
+    },
+    additionalProperties: false,
+  },
+};
+```
+
+### 包文件结构
+
+```
+packages/workflow-agent-office/
+  src/
+    types.ts                # OfficeAgentConfig, OfficeAgentOpt
+    runner.ts               # runOfficeAgent()（spawnCli 封装 + 文件验证）
+    agent.ts                # createOfficeAgent(): AdapterFn
+    package-descriptor.ts   # packageDescriptor
+    index.ts
+  __tests__/
+    runner.test.ts
+    agent.test.ts
+  package.json
+  tsconfig.json
+```
+
+### 依赖
+
+```json
+{
+  "@uncaged/workflow-protocol": "workspace:^",
+  "@uncaged/workflow-util": "workspace:^",
+  "@uncaged/workflow-util-agent": "workspace:^"
+}
+```
+
+---
+
+## 三、`workflow-agent-docx-diff`
+
+`differ` 角色专用执行器。从 `ctx.steps` 读取 `WriterMeta`，调用本地 `docx-diff` CLI。
+
+### docx-diff 退出码约定
+
+| 退出码 | 含义 | runner 处理 |
+|---|---|---|
+| 0 | 无差异 | 正常，验证 diffDocx 存在 |
+| 1 | 有差异 | 正常（显式处理为成功），验证 diffDocx 存在 |
+| 2+ | 错误 | throw |
+
+runner 收到 `SpawnCliError { kind: "non_zero_exit", exitCode: 1 }` 时视为成功，验证文件后继续；`exitCode >= 2` 才 throw。
+
+### 执行流程
+
+```
+1. 从 ctx.steps 找到 writer 步骤，读取 WriterMeta
+2. 验证 mode === "edit"（否则 throw）
+3. diffDocx = join(dirname(writer.outputDocx), "diff.docx")
+4. const command = config.command ?? "docx-diff"
+5. spawnCli(command,
+     [writer.sourceDocx, writer.outputDocx, "--output", "docx", "--out-file", diffDocx],
+     { cwd: null, timeoutMs: null })
+   exit 0 或 1 → 验证 diffDocx 存在
+   exit 2+ → throw
+6. 返回 JSON.stringify({ sourceDocx, modifiedDocx: writer.outputDocx, diffDocx })
+```
+
+### AdapterFn 实现（直接实现，不经过 runtime.extract）
+
+```typescript
+export function createDocxDiffAgent(config: DocxDiffAgentConfig = { command: null }): AdapterFn {
+  return <T>(_prompt: string, schema: z.ZodType<T>) =>
+    async (ctx: ThreadContext, _runtime: WorkflowRuntime): Promise<RoleResult<T>> => {
+      const writerStep = ctx.steps.find(s => s.role === "writer");
+      if (!writerStep) throw new Error("differ: no writer step found");
+      const writerMeta = writerStep.meta as WriterMeta;
+      if (writerMeta.mode !== "edit")
+        throw new Error("differ: writer did not run in edit mode");
+      const raw = await runDocxDiff(config, writerMeta);
+      const meta = schema.parse(JSON.parse(raw)) as T;
+      return { meta, childThread: null };
+    };
+}
+```
+
+### 配置
+
+```typescript
+type DocxDiffAgentConfig = {
+  command: string | null;   // null → runner 内 resolve 为 "docx-diff"
+};
+```
+
+### packageDescriptor
+
+```typescript
+export const packageDescriptor: PackageDescriptor = {
+  name: "@uncaged/workflow-agent-docx-diff",
+  version: "0.1.0",
+  capabilities: ["docx-diff-cli", "docx-diff-report"],
+  configSchema: {
+    type: "object",
+    properties: {
+      command: { anyOf: [{ type: "string" }, { type: "null" }], description: "Path to docx-diff CLI; null uses PATH." },
+    },
+    additionalProperties: false,
+  },
+};
+```
+
+### 包文件结构
+
+```
+packages/workflow-agent-docx-diff/
+  src/
+    types.ts                # DocxDiffAgentConfig
+    runner.ts               # runDocxDiff()（exit 1 处理 + 文件验证）
+    agent.ts                # createDocxDiffAgent(): AdapterFn
+    package-descriptor.ts   # packageDescriptor
+    index.ts
+  __tests__/
+    runner.test.ts
+    agent.test.ts
+  package.json
+  tsconfig.json
+```
+
+### 依赖
+
+```json
+{
+  "@uncaged/workflow-protocol": "workspace:^",
+  "@uncaged/workflow-util-agent": "workspace:^",
+  "@uncaged/workflow-template-document": "workspace:^"
+}
+```
+
+---
+
+## 四、外部 bundle（外部 workspace 消费）
+
+```typescript
+import { createOfficeAgent } from "@uncaged/workflow-agent-office";
+import { createDocxDiffAgent } from "@uncaged/workflow-agent-docx-diff";
+import {
+  buildDocumentDescriptor,
+  documentWorkflowDefinition,
+} from "@uncaged/workflow-template-document";
+import { createWorkflow } from "@uncaged/workflow-runtime";
+import { getDefaultWorkflowStorageRoot } from "@uncaged/workflow-util";
+import { join } from "node:path";
+
+const outputDir = join(getDefaultWorkflowStorageRoot(), "outputs");
+
+export const descriptor = buildDocumentDescriptor();
+export const run = createWorkflow(documentWorkflowDefinition, {
+  adapter: createOfficeAgent({ outputDir, command: null, timeout: null }),
+  overrides: { differ: createDocxDiffAgent() },
+});
+```
+
+---
+
+## 不在范围内
+
+- 重试逻辑（失败直接 throw）
+- office-agent server 的启停管理（假设 server 已在运行）
+- docx-diff HTML/terminal 格式输出（仅 docx）
+- 跨机器执行（`inputDocx` 须为本机有效绝对路径）

docs/wf-stateless-design.md

@@ -0,0 +1,527 @@
+# `uwf` — Stateless Workflow CLI
+
+> 将 workflow 引擎降维为无状态单步 CLI。Workflow 是纯数据（CAS 节点），执行是单步原子操作，agent 是可插拔外部命令。
+
+---
+
+## 1. CLI Design
+
+### 1.1 命令总览
+
+```
+# thread 组
+uwf thread start <workflow> -p <prompt>     # 创建 thread，不执行
+uwf thread step  <thread-id> [--agent]      # 单步执行
+uwf thread show  <thread-id>                # thread-id → head 查询
+uwf thread list  [--all]                    # 列出活跃 threads（--all 含已归档）
+uwf thread kill  <thread-id>                # 终结 thread，归档
+
+# workflow 组
+uwf workflow put   <file.yaml>              # 注册 workflow（YAML → CAS）
+uwf workflow show  <workflow-id>            # 查看 workflow 定义
+uwf workflow list                           # 列出已注册 workflows
+```
+
+两组对称，各 3-4 个子命令。CAS 操作交给 `json-cas` CLI，不在 `uwf` 中重复。
+
+### 1.2 `uwf thread start`
+
+```bash
+uwf thread start <workflow> -p "Fix the login bug described in issue #42"
+```
+
+- `<workflow>` — workflow 名或 CAS hash
+- `-p` — 用户 prompt（必填）
+
+**输出（JSON to stdout）：**
+
+```jsonc
+{
+  "workflow": "4KNM2PXR3B1QW",   // workflow CAS hash (XXH64, 13-char Crockford Base32)
+  "thread": "01J7K9M2XNPQR5VWBCDF8G3H4T"      // ULID
+}
+```
+
+**做的事：**
+1. 解析 workflow（名字查 registry → CAS hash）
+2. 生成 thread ULID
+3. 写 StartNode 到 CAS
+4. 在 threads.yaml 中记录链头 → StartNode hash
+5. 输出 JSON
+
+### 1.3 `uwf thread step`
+
+```bash
+uwf thread step 01J7K9M2XNPQR5VWBCDF8G3H4T
+uwf thread step 01J7K9M2XNPQR5VWBCDF8G3H4T --agent "bunx uwf-cursor"
+```
+
+**输出（JSON to stdout）：**
+
+```jsonc
+{
+  "workflow": "4KNM2PXR3B1QW",
+  "thread": "01J7K9M2XNPQR5VWBCDF8G3H4T",
+  "head": "8FWKR3TN5V1QA",       // 新链头 StepNode 的 CAS hash
+  "done": false                    // true = moderator 返回 END，thread 已归档
+}
+```
+
+`done: true` 时 head 仍然有值（最后一个 StepNode），但 thread 已从 threads.yaml 移除。
+对已结束或不存在的 thread 调用 step 会报错（非 active thread）。
+
+详细信息通过 `uwf thread show <thread-id>` 或 `json-cas get <head>` 查看。
+
+**做的事：**
+1. 读链头 → 当前 StepNode（或 StartNode）
+2. 收集 thread 历史（遍历链）
+3. 调 moderator：评估 JSONata conditions → 得到下一个 role（或 END）
+4. 若 END → 归档 thread，输出最后链头，退出
+5. 确定 agent command（`--agent` override > config.yaml per-workflow/role > config.yaml defaultAgent）
+6. 调用：`<agent-cmd> <thread-id> <role>`，捕获 stdout 得到新 StepNode hash
+7. 更新链头指针
+8. 再次调 moderator（基于新 StepNode）判断 done
+9. 输出 JSON
+
+### 1.4 `uwf thread show`
+
+```bash
+uwf thread show 01J7K9M2XNPQR5VWBCDF8G3H4T
+```
+
+**输出（JSON to stdout）：**
+
+```jsonc
+{
+  "workflow": "4KNM2PXR3B1QW",
+  "thread": "01J7K9M2XNPQR5VWBCDF8G3H4T",
+  "head": "8FWKR3TN5V1QA",
+  "done": false
+}
+```
+
+纯 thread-id → head 查询。详细内容用 `json-cas get <head>` 或 `json-cas walk <head>` 查看。
+
+### 1.5 Agent CLI 协议
+
+每个 agent 是一个命令，接受 thread-id 和 role 两个参数：
+
+```bash
+uwf-hermes <thread-id> <role>
+```
+
+**约定：**
+- `uwf step` 负责 moderator 决策，将 role 传给 agent CLI
+- agent-kit 根据 thread + role 从 CAS 读 systemPrompt / outputSchema
+- agent-kit 组装完整 prompt（role systemPrompt + thread context + user prompt from StartNode）
+- agent 执行实际逻辑，agent-kit 负责 extract
+- agent 将 StepNode 写入 CAS（含 output、detail、agent、prev），但**不挪链头指针**
+- stdout 输出新 StepNode 的 CAS hash（纯文本，一行）
+- 所有配置从环境变量读（LLM model、API key、extractor config）
+- exit 0 = 成功，非 0 = 失败
+
+**stdout 输出：**
+
+```
+8FWKR3TN5V1QA
+```
+
+`uwf step` 拿到这个 hash 后更新链头指针、判断 done。
+
+---
+
+## 2. CAS 结构定义
+
+### 2.1 类型层级
+
+沿用 json-cas 的三层：bootstrap meta-schema → JSON Schema nodes → data nodes。
+
+下面所有 CAS 节点都遵循 `{ type: cas_ref, payload: T, timestamp: number }` 的标准格式。
+`cas_ref` 类型的字符串字段在 json-cas 中已内置支持，不需要额外的 `$ref` 包装。
+
+### 2.2 数据节点
+
+#### `Workflow`
+
+Roles 和 moderator 内联在 Workflow 中，只有 outputSchema 独立为 CAS 节点（方便 json-cas 校验）。
+
+```yaml
+type: <workflow-schema-hash>
+payload:
+  name: "solve-issue"
+  description: "End-to-end issue resolution"
+  roles:
+    planner:
+      description: "Creates implementation plan"
+      systemPrompt: "You are a planning agent..."
+      outputSchema: "5GWKR8TN1V3JA"    # cas_ref → JSON Schema 节点（json-cas 内置）
+    developer:
+      description: "Implements code changes"
+      systemPrompt: "You are a developer agent..."
+      outputSchema: "8CNWT4KR6D1HV"    # cas_ref → JSON Schema 节点
+    reviewer:
+      description: "Reviews code changes"
+      systemPrompt: "You are a code reviewer..."
+      outputSchema: "1VPBG9SM5E7WK"    # cas_ref → JSON Schema 节点
+  conditions:
+    needsClarification:
+      description: "Planner requests clarification from user"
+      expression: "$exists(steps[-1].output.needsClarification)"
+    notApproved:
+      description: "Reviewer rejected the implementation"
+      expression: "steps[-1].output.approved = false"
+  graph:
+    $START:
+      - role: "planner"
+        condition: null                  # 无条件（fallback）
+    planner:
+      - role: "developer"
+        condition: "needsClarification"
+      - role: "$END"
+        condition: null
+    developer:
+      - role: "reviewer"
+        condition: null
+    reviewer:
+      - role: "developer"
+        condition: "notApproved"
+      - role: "$END"
+        condition: null
+```
+
+- `roles` — 内联定义，每个 role 的 `outputSchema` 是独立的 cas_ref（指向 json-cas 内置 JSON Schema 节点）
+- `conditions` — `Record<Name, JSONata>`，命名条件，方便画图描述
+- `graph` — `Record<Role | "$START", Transition[]>`，每个 Transition = `{ role, condition }`
+- `condition` 引用 conditions 中的 key，`null` = fallback
+- 按数组顺序求值，第一个匹配的 transition 胜出
+- 不含 agent binding — agent 配置在 `~/.uncaged/workflow/config.yaml` 中管理
+
+JSONata 表达式的求值上下文：
+
+```jsonc
+{
+  "start": {                          // StartNode 信息
+    "workflow": "4KNM2PXR3B1QW",
+    "prompt": "Fix the login bug..."
+  },
+  "steps": [                          // 所有已完成 steps，从旧到新
+    { "role": "planner", "output": { "phases": [...] }, "detail": "7BQST3VW9F2MA", "agent": "uwf-hermes" },
+    { "role": "developer", "output": { "filesChanged": ["src/auth.ts"], "summary": "Fixed redirect" }, "detail": "9KRVW3TN5F1QA", "agent": "uwf-cursor" },
+    { "role": "reviewer", "output": { "approved": false }, "detail": "2MXBG6PN4A8JR", "agent": "uwf-hermes" }
+  ]
+}
+```
+
+注：`output` 在上下文中会被自动展开为实际的 CAS 节点内容（而非 hash），方便 JSONata 表达式直接访问字段。
+
+#### `StartNode`（Thread 起点）
+
+```yaml
+type: <start-node-schema-hash>
+payload:
+  workflow: "4KNM2PXR3B1QW"        # cas_ref → Workflow
+  prompt: "Fix the login bug..."
+```
+
+- 没有 thread-id — thread-id 是索引层面的事，不进 CAS 内容
+- 没有 agent binding — 运行时从 config.yaml 解析
+
+#### `StepNode`（Thread 每一步）
+
+```yaml
+type: <step-node-schema-hash>
+payload:
+  start: "4TNVW8KR2B3MA"          # cas_ref → StartNode（每个 step 都引用）
+  prev: "2MXBG6PN4A8JR"           # cas_ref → 前一个 StepNode，第一步为 null
+  role: "developer"
+  output: "9KRVW3TN5F1QA"         # cas_ref → 结构化输出节点（符合 role 的 outputSchema）
+  detail: "7BQST3VW9F2MA"         # cas_ref → 执行详情（content node / 子 workflow terminal StepNode / ...）
+  agent: "uwf-cursor"              # 实际使用的 agent 命令（纯字符串）
+```
+
+- `start` — 每个 StepNode 都直接引用 StartNode，方便随机访问
+- `prev` — 前一个 StepNode 的 cas_ref，第一步为 `null`（不指向 StartNode）
+- `output` — cas_ref，指向符合 role outputSchema 的 CAS 节点，可用 json-cas 校验
+- `detail` — cas_ref，指向执行详情。可以是原始 agent 输出（content node），也可以是子 workflow thread 的 terminal StepNode（workflowAsAgent 场景）
+- `agent` — 纯字符串，不是 CAS 节点
+
+### 2.3 链式结构
+
+```
+threads.yaml: { "01J7K9M2XNPQR5VWBCDF8G3H4T": "8FWKR3TN5V1QA" }
+                                      │
+                                      ▼
+                              StepNode (step 3)
+                              ├── start ──→ StartNode
+                              │              ├── workflow → CAS(Workflow)
+                              │              └── prompt: "Fix..."
+                              ├── prev ──→ StepNode (step 2)
+                              │             ├── start ──→ (same StartNode)
+                              │             ├── prev ──→ StepNode (step 1)
+                              │             │             ├── start ──→ (same StartNode)
+                              │             │             ├── prev: null
+                              │             │             ├── role: "planner"
+                              │             │             └── ...
+                              │             ├── role: "developer"
+                              │             └── ...
+                              ├── role: "reviewer"
+                              ├── output → CAS({ approved: true })
+                              ├── detail → CAS(raw output | sub-workflow terminal node)
+                              └── agent: "uwf-hermes"
+```
+
+### 2.4 可变状态
+
+系统两个顶层 YAML 文件和一个 env 文件：
+
+```yaml
+# ~/.uncaged/workflow/config.yaml — 全局配置
+providers:
+  openai:
+    baseUrl: "https://api.openai.com/v1"
+    apiKeyEnv: "OPENAI_API_KEY"
+  anthropic:
+    baseUrl: "https://api.anthropic.com/v1"
+    apiKeyEnv: "ANTHROPIC_API_KEY"
+  openrouter:
+    baseUrl: "https://openrouter.ai/api/v1"
+    apiKeyEnv: "OPENROUTER_API_KEY"
+
+models:
+  sonnet:
+    provider: "openrouter"
+    name: "anthropic/claude-sonnet-4"
+  gpt4o-mini:
+    provider: "openai"
+    name: "gpt-4o-mini"
+
+agents:
+  hermes:
+    command: "uwf-hermes"
+    args: []
+  cursor:
+    command: "uwf-cursor"
+    args: []
+
+defaultAgent: "hermes"
+agentOverrides:
+  solve-issue:
+    developer: "cursor"
+
+defaultModel: "sonnet"
+modelOverrides:
+  extract: "gpt4o-mini"
+```
+
+```yaml
+# ~/.uncaged/workflow/threads.yaml — active thread 链头指针
+01J7K9M2XNPQR5VWBCDF8G3H4T: "8FWKR3TN5V1QA"
+01J8AB3QRMSTV6WKXZ2C4DF7GN: "3CNWT9KR6D2HV"
+```
+
+Thread 结束时从 threads.yaml 移除。可选：追加到 `history.jsonl` 做归档。
+
+```bash
+# ~/.uncaged/workflow/.env — 敏感信息（API keys）
+OPENAI_API_KEY=sk-...
+ANTHROPIC_API_KEY=sk-ant-...
+OPENROUTER_API_KEY=sk-or-...
+```
+
+- `config.yaml` — 非敏感配置（agent 命令、model 名、provider 名）
+- `.env` — 敏感信息（API keys），agent-kit 启动时自动加载
+- `threads.yaml` — 运行时状态
+
+---
+
+## 3. 包结构
+
+全新包，不复用现有 packages，避免命名冲突。CAS 直接依赖 `@uncaged/json-cas`。
+
+```
+packages/
+├── cli-uwf/              # @uncaged/cli-uwf — uwf CLI（thread/workflow 命令）
+├── uwf-moderator/        # @uncaged/uwf-moderator — JSONata moderator 引擎
+├── uwf-agent-kit/        # @uncaged/uwf-agent-kit — Agent CLI 框架（含 extractor）
+├── uwf-agent-hermes/     # @uncaged/uwf-agent-hermes — uwf-hermes CLI
+├── uwf-agent-cursor/     # @uncaged/uwf-agent-cursor — uwf-cursor CLI
+└── uwf-protocol/         # @uncaged/uwf-protocol — 共享类型定义
+```
+
+**外部依赖：**
+- `@uncaged/json-cas` — CAS 存储、hash、schema 校验
+- `@uncaged/json-cas-fs` — 文件系统 CAS 后端
+
+**现有包全部保留不动**，新旧并存，逐步迁移。
+
+---
+
+## 4. 关键数据类型
+
+JSONata 求值上下文本质上是 thread 链表的线性化表达。StepNode payload 和上下文中的 step 共享大量字段，提取为公共类型。
+
+### 4.1 公共类型
+
+```typescript
+/** CAS hash — XXH64, 13-char Crockford Base32 */
+type CasRef = string;
+
+/** Thread ID — ULID, 26-char Crockford Base32 */
+type ThreadId = string;
+
+/** 一个 step 的核心数据，被 StepNode payload 和 JSONata 上下文共享 */
+type StepRecord = {
+  role: string;
+  output: CasRef;                    // cas_ref → 结构化输出节点（符合 role outputSchema）
+  detail: CasRef;                    // cas_ref → 执行详情（content node / 子 workflow terminal StepNode）
+  agent: string;                     // 实际使用的 agent 命令（纯字符串）
+};
+```
+
+### 4.2 Workflow 定义
+
+```typescript
+type RoleDefinition = {
+  description: string;
+  systemPrompt: string;
+  outputSchema: CasRef;              // cas_ref → json-cas 内置 JSON Schema 节点
+};
+
+type Transition = {
+  role: string;                      // 目标 role 名 或 "$END"
+  condition: string | null;          // 引用 conditions 中的 key，null = fallback
+};
+
+type ConditionDefinition = {
+  description: string;
+  expression: string;                           // JSONata expression
+};
+
+type WorkflowPayload = {
+  name: string;
+  description: string;
+  roles: Record<string, RoleDefinition>;
+  conditions: Record<string, ConditionDefinition>;
+  graph: Record<string, Transition[]>;          // Record<Role | "$START", Transition[]>
+};
+```
+
+### 4.3 Thread 节点
+
+```typescript
+type StartNodePayload = {
+  workflow: CasRef;                  // cas_ref → Workflow
+  prompt: string;
+};
+
+type StepNodePayload = StepRecord & {
+  start: CasRef;                     // cas_ref → StartNode（每个 step 都引用）
+  prev: CasRef | null;               // cas_ref → 前一个 StepNode，第一步为 null
+};
+```
+
+### 4.4 JSONata 求值上下文
+
+Thread 链表的线性化。`steps[n]` 的字段和 `StepRecord` 一致，但 `output` 被展开为实际内容。
+
+```typescript
+/** JSONata 上下文中的 step — output 被展开 */
+type StepContext = Omit<StepRecord, "output"> & {
+  output: unknown;                   // 展开后的 CAS 节点内容，非 hash
+};
+
+type ModeratorContext = {
+  start: StartNodePayload;
+  steps: StepContext[];              // 从旧到新
+};
+```
+
+### 4.5 CLI 输出
+
+```typescript
+/** uwf thread start */
+type StartOutput = {
+  workflow: CasRef;
+  thread: ThreadId;
+};
+
+/** uwf thread step / uwf thread show */
+type StepOutput = {
+  workflow: CasRef;
+  thread: ThreadId;
+  head: CasRef;
+  done: boolean;
+};
+
+/** uwf thread list */
+type ThreadListItem = {
+  thread: ThreadId;
+  workflow: CasRef;
+  head: CasRef;
+};
+```
+
+### 4.6 配置
+
+```typescript
+/** Alias types for config references */
+type AgentAlias = string;
+type ModelAlias = string;
+type ProviderAlias = string;
+type WorkflowName = string;
+type RoleName = string;
+type Scenario = string;              // e.g. "extract"
+
+type ProviderConfig = {
+  baseUrl: string;
+  apiKeyEnv: string;                 // env var name to read API key from
+};
+
+type ModelConfig = {
+  provider: ProviderAlias;
+  name: string;                      // e.g. "anthropic/claude-sonnet-4", "gpt-4o-mini"
+};
+
+type AgentConfig = {
+  command: string;
+  args: string[];
+};
+
+/** ~/.uncaged/workflow/config.yaml */
+type WorkflowConfig = {
+  providers: Record<ProviderAlias, ProviderConfig>;
+  models: Record<ModelAlias, ModelConfig>;
+  agents: Record<AgentAlias, AgentConfig>;
+  defaultAgent: AgentAlias;
+  agentOverrides: Record<WorkflowName, Record<RoleName, AgentAlias>> | null;
+  defaultModel: ModelAlias;
+  modelOverrides: Record<Scenario, ModelAlias> | null;
+};
+
+/** ~/.uncaged/workflow/threads.yaml */
+type ThreadsIndex = Record<ThreadId, CasRef>;
+//                         ^ thread-id  ^ head StepNode/StartNode hash
+```
+
+### 4.7 类型关系图
+
+```
+WorkflowConfig (config.yaml)
+ThreadsIndex (threads.yaml)          ← 唯二可变状态
+    │
+    │ thread-id → head hash
+    ▼
+StepNodePayload ──extends──→ StepRecord ←──maps to──→ StepContext
+    │                           │                          │
+    ├── start → StartNodePayload│                          │ (output 展开)
+    ├── prev → StepNodePayload  │                          │
+    │                           ├── role                   ├── role
+    │                           ├── output (CasRef)        ├── output (展开)
+    │                           ├── detail (CasRef)        ├── detail (CasRef)
+    │                           └── agent (string)         └── agent (string)
+    │
+    └── start.workflow → WorkflowPayload
+                             ├── roles: Record<name, RoleDefinition>
+                             ├── conditions: Record<name, JSONata>
+                             └── graph: Record<role, Transition[]>
+```

packages/cli-uwf/package.json

@@ -0,0 +1,30 @@
+{
+  "name": "@uncaged/cli-uwf",
+  "version": "0.1.0",
+  "files": [
+    "src",
+    "dist",
+    "package.json"
+  ],
+  "type": "module",
+  "bin": {
+    "uwf": "./src/cli.ts"
+  },
+  "dependencies": {
+    "@uncaged/json-cas": "^0.1.3",
+    "@uncaged/json-cas-fs": "^0.1.2",
+    "@uncaged/uwf-agent-kit": "workspace:^",
+    "@uncaged/uwf-moderator": "workspace:^",
+    "@uncaged/uwf-protocol": "workspace:^",
+    "@uncaged/workflow-util": "workspace:^",
+    "commander": "^14.0.3",
+    "dotenv": "^16.6.1",
+    "yaml": "^2.8.4"
+  },
+  "scripts": {
+    "test": "bun test"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/cli-uwf/src/cli.ts

@@ -0,0 +1,269 @@
+#!/usr/bin/env bun
+
+import { Command } from "commander";
+
+import {
+  cmdThreadKill,
+  cmdThreadList,
+  cmdThreadShow,
+  cmdThreadStart,
+  cmdThreadStep,
+} from "./commands/thread.js";
+import { cmdWorkflowList, cmdWorkflowPut, cmdWorkflowShow } from "./commands/workflow.js";
+import { cmdSetup, cmdSetupInteractive } from "./commands/setup.js";
+import {
+  cmdCasGet,
+  cmdCasHas,
+  cmdCasPut,
+  cmdCasRefs,
+  cmdCasSchemaGet,
+  cmdCasSchemaList,
+  cmdCasWalk,
+} from "./commands/cas.js";
+import { resolveStorageRoot } from "./store.js";
+import { type OutputFormat, formatOutput } from "./format.js";
+
+function writeOutput(data: unknown): void {
+  const fmt = program.opts().format as OutputFormat;
+  process.stdout.write(`${formatOutput(data, fmt)}\n`);
+}
+
+function runAction(action: () => Promise<void>): void {
+  action().catch((e: unknown) => {
+    const message = e instanceof Error ? e.message : String(e);
+    process.stderr.write(`${message}\n`);
+    process.exit(1);
+  });
+}
+
+const program = new Command();
+
+program.name("uwf").description("Stateless workflow CLI");
+program.option("--format <fmt>", "Output format: json or yaml", "json");
+
+const workflow = program.command("workflow").description("Workflow registry and CAS");
+
+workflow
+  .command("put")
+  .description("Register a workflow from YAML")
+  .argument("<file>", "Workflow YAML file")
+  .action((file: string) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      const result = await cmdWorkflowPut(storageRoot, file);
+      writeOutput(result);
+    });
+  });
+
+workflow
+  .command("show")
+  .description("Show a workflow by name or CAS hash")
+  .argument("<id>", "Workflow name or hash")
+  .action((id: string) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      const result = await cmdWorkflowShow(storageRoot, id);
+      writeOutput(result);
+    });
+  });
+
+workflow
+  .command("list")
+  .description("List registered workflows")
+  .action(() => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      const result = await cmdWorkflowList(storageRoot);
+      writeOutput(result);
+    });
+  });
+
+const thread = program.command("thread").description("Thread lifecycle and execution");
+
+thread
+  .command("start")
+  .description("Create a thread without executing")
+  .argument("<workflow>", "Workflow name or hash")
+  .requiredOption("-p, --prompt <text>", "User prompt")
+  .action((workflow: string, opts: { prompt: string }) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      const result = await cmdThreadStart(storageRoot, workflow, opts.prompt);
+      writeOutput(result);
+    });
+  });
+
+thread
+  .command("step")
+  .description("Execute one step")
+  .argument("<thread-id>", "Thread ULID")
+  .option("--agent <cmd>", "Override agent command")
+  .action((threadId: string, opts: { agent: string | undefined }) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      const agentOverride = opts.agent ?? null;
+      const result = await cmdThreadStep(storageRoot, threadId, agentOverride);
+      writeOutput(result);
+    });
+  });
+
+thread
+  .command("show")
+  .description("Show thread head pointer")
+  .argument("<thread-id>", "Thread ULID")
+  .action((threadId: string) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      const result = await cmdThreadShow(storageRoot, threadId);
+      writeOutput(result);
+    });
+  });
+
+thread
+  .command("list")
+  .description("List active threads")
+  .option("--all", "Include archived threads")
+  .action((opts: { all: boolean }) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      const result = await cmdThreadList(storageRoot, opts.all);
+      writeOutput(result);
+    });
+  });
+
+thread
+  .command("kill")
+  .description("Terminate and archive a thread")
+  .argument("<thread-id>", "Thread ULID")
+  .action((threadId: string) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      const result = await cmdThreadKill(storageRoot, threadId);
+      writeOutput(result);
+    });
+  });
+
+program
+  .command("setup")
+  .description("Configure provider, model, and agent")
+  .option("--provider <name>", "Provider name")
+  .option("--base-url <url>", "OpenAI-compatible API base URL")
+  .option("--api-key <key>", "API key")
+  .option("--model <name>", "Default model name")
+  .option("--agent <name>", "Default agent alias")
+  .action((opts: {
+    provider?: string;
+    baseUrl?: string;
+    apiKey?: string;
+    model?: string;
+    agent?: string;
+  }) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      if (opts.provider && opts.baseUrl && opts.apiKey && opts.model) {
+        const result = await cmdSetup({
+          provider: opts.provider,
+          baseUrl: opts.baseUrl,
+          apiKey: opts.apiKey,
+          model: opts.model,
+          agent: opts.agent ?? undefined,
+          storageRoot,
+        });
+        writeOutput(result);
+      } else if (!opts.provider && !opts.baseUrl && !opts.apiKey && !opts.model) {
+        await cmdSetupInteractive(storageRoot);
+      } else {
+        throw new Error(
+          "Non-interactive setup requires all of: --provider, --base-url, --api-key, --model",
+        );
+      }
+    });
+  });
+
+const cas = program.command("cas").description("Content-addressable storage operations");
+
+cas
+  .command("get")
+  .description("Read a CAS node (type + payload; use --timestamp to include timestamp)")
+  .argument("<hash>", "CAS hash (13 char)")
+  .option("--timestamp", "Include timestamp in output")
+  .action((hash: string, opts: { timestamp?: boolean }) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      writeOutput(await cmdCasGet(storageRoot, hash, opts));
+    });
+  });
+
+cas
+  .command("put")
+  .description("Store a node, print its hash")
+  .argument("<type-hash>", "Type (schema) hash")
+  .argument("<data>", "JSON file path or inline JSON string")
+  .action((typeHash: string, data: string) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      writeOutput(await cmdCasPut(storageRoot, typeHash, data));
+    });
+  });
+
+cas
+  .command("has")
+  .description("Check if a hash exists")
+  .argument("<hash>", "CAS hash (13 char)")
+  .action((hash: string) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      writeOutput(await cmdCasHas(storageRoot, hash));
+    });
+  });
+
+cas
+  .command("refs")
+  .description("List direct CAS references from a node")
+  .argument("<hash>", "CAS hash (13 char)")
+  .action((hash: string) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      writeOutput(await cmdCasRefs(storageRoot, hash));
+    });
+  });
+
+cas
+  .command("walk")
+  .description("Recursive traversal from a node")
+  .argument("<hash>", "CAS hash (13 char)")
+  .action((hash: string) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      writeOutput(await cmdCasWalk(storageRoot, hash));
+    });
+  });
+
+const casSchema = cas.command("schema").description("CAS schema operations");
+
+casSchema
+  .command("list")
+  .description("List all registered schemas")
+  .action(() => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      writeOutput(await cmdCasSchemaList(storageRoot));
+    });
+  });
+
+casSchema
+  .command("get")
+  .description("Show a schema by its type hash")
+  .argument("<hash>", "Schema type hash")
+  .action((hash: string) => {
+    const storageRoot = resolveStorageRoot();
+    runAction(async () => {
+      writeOutput(await cmdCasSchemaGet(storageRoot, hash));
+    });
+  });
+
+program.parseAsync(process.argv).catch((e: unknown) => {
+  const message = e instanceof Error ? e.message : String(e);
+  process.stderr.write(`${message}\n`);
+  process.exit(1);
+});

packages/cli-uwf/src/commands/cas.ts

@@ -0,0 +1,128 @@
+import { readFileSync } from "node:fs";
+import { join } from "node:path";
+
+import type { Hash, JSONSchema, Store } from "@uncaged/json-cas";
+import { bootstrap, getSchema, refs, walk } from "@uncaged/json-cas";
+import { createFsStore } from "@uncaged/json-cas-fs";
+
+// ---- Helpers ----
+
+function openStore(storageRoot: string): Store {
+  return createFsStore(join(storageRoot, "cas"));
+}
+
+function readJsonArg(fileOrInline: string): unknown {
+  try {
+    return JSON.parse(fileOrInline);
+  } catch {
+    try {
+      return JSON.parse(readFileSync(fileOrInline, "utf-8"));
+    } catch (e) {
+      throw new Error(`Cannot parse JSON from "${fileOrInline}": ${e}`);
+    }
+  }
+}
+
+// ---- Commands (all return JSON-serializable data) ----
+
+export async function cmdCasGet(
+  storageRoot: string,
+  hash: string,
+  opts: { timestamp?: boolean },
+): Promise<unknown> {
+  const store = openStore(storageRoot);
+  const node = store.get(hash);
+  if (node === null) {
+    throw new Error(`Node not found: ${hash}`);
+  }
+  if (opts.timestamp) {
+    return node;
+  }
+  const { timestamp: _, ...rest } = node as Record<string, unknown>;
+  return rest;
+}
+
+export async function cmdCasPut(
+  storageRoot: string,
+  typeHash: string,
+  data: string,
+): Promise<{ hash: string }> {
+  const store = openStore(storageRoot);
+  const payload = readJsonArg(data);
+  const hash = await store.put(typeHash, payload);
+  return { hash };
+}
+
+export async function cmdCasHas(
+  storageRoot: string,
+  hash: string,
+): Promise<{ exists: boolean }> {
+  const store = openStore(storageRoot);
+  return { exists: store.has(hash) };
+}
+
+export async function cmdCasRefs(
+  storageRoot: string,
+  hash: string,
+): Promise<{ refs: string[] }> {
+  const store = openStore(storageRoot);
+  const node = store.get(hash);
+  if (node === null) {
+    throw new Error(`Node not found: ${hash}`);
+  }
+  return { refs: refs(store, node) };
+}
+
+export async function cmdCasWalk(
+  storageRoot: string,
+  hash: string,
+): Promise<{ hashes: string[] }> {
+  const store = openStore(storageRoot);
+  const result: string[] = [];
+  walk(store, hash, (h) => {
+    result.push(h);
+  });
+  return { hashes: result };
+}
+
+export type SchemaListEntry = {
+  hash: string;
+  title: string;
+};
+
+export async function cmdCasSchemaList(
+  storageRoot: string,
+): Promise<SchemaListEntry[]> {
+  const store = openStore(storageRoot);
+  const metaHash = await bootstrap(store);
+  const entries: SchemaListEntry[] = [];
+
+  // Include meta-schema itself
+  entries.push({ hash: metaHash, title: "(meta-schema)" });
+
+  for (const hash of store.list()) {
+    if (hash === metaHash) continue;
+    const node = store.get(hash);
+    if (node !== null && node.type === metaHash) {
+      const schema = node.payload as JSONSchema;
+      const title =
+        (schema.title as string | undefined) ??
+        (schema.description as string | undefined) ??
+        "(unnamed)";
+      entries.push({ hash, title });
+    }
+  }
+  return entries;
+}
+
+export async function cmdCasSchemaGet(
+  storageRoot: string,
+  hash: string,
+): Promise<unknown> {
+  const store = openStore(storageRoot);
+  const schema = getSchema(store, hash);
+  if (schema === null) {
+    throw new Error(`Schema not found: ${hash}`);
+  }
+  return schema;
+}

packages/cli-uwf/src/commands/setup.ts

@@ -0,0 +1,332 @@
+import { existsSync, readFileSync, writeFileSync, mkdirSync } from "node:fs";
+import { homedir } from "node:os";
+import { join, resolve } from "node:path";
+import { createInterface } from "node:readline/promises";
+import { stdin as input, stdout as output } from "node:process";
+
+import { stringify, parse } from "yaml";
+
+/**
+ * Preset provider list — embedded to avoid runtime YAML loading dependency.
+ * Keep in sync with providers.yaml in cli-workflow.
+ */
+const PRESET_PROVIDERS = [
+  // International
+  { name: "openai", label: "OpenAI", baseUrl: "https://api.openai.com/v1" },
+  { name: "xai", label: "xAI", baseUrl: "https://api.x.ai/v1" },
+  { name: "openrouter", label: "OpenRouter", baseUrl: "https://openrouter.ai/api/v1" },
+  { name: "venice", label: "Venice", baseUrl: "https://api.venice.ai/api/v1" },
+  // China
+  { name: "dashscope", label: "DashScope (Alibaba)", baseUrl: "https://dashscope.aliyuncs.com/compatible-mode/v1" },
+  { name: "deepseek", label: "DeepSeek", baseUrl: "https://api.deepseek.com/v1" },
+  { name: "siliconflow", label: "SiliconFlow", baseUrl: "https://api.siliconflow.cn/v1" },
+  { name: "volcengine", label: "Volcengine (ByteDance)", baseUrl: "https://ark.cn-beijing.volces.com/api/v3" },
+  { name: "kimi", label: "Kimi (Moonshot)", baseUrl: "https://api.moonshot.cn/v1" },
+  { name: "glm", label: "GLM (Zhipu AI)", baseUrl: "https://open.bigmodel.cn/api/paas/v4" },
+  { name: "stepfun", label: "StepFun", baseUrl: "https://api.stepfun.com/v1" },
+  { name: "minimax", label: "MiniMax", baseUrl: "https://api.minimax.io/v1" },
+  // Local
+  { name: "ollama", label: "Ollama (local)", baseUrl: "http://localhost:11434/v1" },
+] as const;
+
+type SetupArgs = {
+  provider: string;
+  baseUrl: string;
+  apiKey: string;
+  model: string;
+  agent?: string | undefined;
+  storageRoot: string;
+};
+
+function getConfigPath(root: string): string {
+  return join(root, "config.yaml");
+}
+
+function getEnvPath(root: string): string {
+  return join(root, ".env");
+}
+
+/**
+ * Load existing config.yaml or return empty structure.
+ */
+function loadExistingConfig(configPath: string): Record<string, unknown> {
+  try {
+    if (existsSync(configPath)) {
+      const raw = parse(readFileSync(configPath, "utf8")) as unknown;
+      if (typeof raw === "object" && raw !== null && !Array.isArray(raw)) {
+        return raw as Record<string, unknown>;
+      }
+    }
+  } catch {
+    // ignore parse errors, start fresh
+  }
+  return {};
+}
+
+/**
+ * Load existing .env as key=value map.
+ */
+function loadEnvFile(envPath: string): Record<string, string> {
+  const env: Record<string, string> = {};
+  try {
+    if (existsSync(envPath)) {
+      for (const line of readFileSync(envPath, "utf8").split("\n")) {
+        const trimmed = line.trim();
+        if (trimmed === "" || trimmed.startsWith("#")) continue;
+        const eq = trimmed.indexOf("=");
+        if (eq > 0) {
+          env[trimmed.slice(0, eq)] = trimmed.slice(eq + 1);
+        }
+      }
+    }
+  } catch {
+    // ignore
+  }
+  return env;
+}
+
+function saveEnvFile(envPath: string, env: Record<string, string>): void {
+  const lines = Object.entries(env).map(([k, v]) => `${k}=${v}`);
+  writeFileSync(envPath, `${lines.join("\n")}\n`, "utf8");
+}
+
+function apiKeyEnvName(providerName: string): string {
+  return `${providerName.toUpperCase().replace(/[^A-Z0-9]/g, "_")}_API_KEY`;
+}
+
+/**
+ * Merge setup args into config.yaml structure. Non-destructive — preserves existing entries.
+ */
+function mergeConfig(existing: Record<string, unknown>, args: SetupArgs): Record<string, unknown> {
+  const providers = (typeof existing.providers === "object" && existing.providers !== null
+    ? { ...(existing.providers as Record<string, unknown>) }
+    : {}) as Record<string, unknown>;
+
+  const envName = apiKeyEnvName(args.provider);
+  providers[args.provider] = { baseUrl: args.baseUrl, apiKeyEnv: envName };
+
+  const models = (typeof existing.models === "object" && existing.models !== null
+    ? { ...(existing.models as Record<string, unknown>) }
+    : {}) as Record<string, unknown>;
+  models.default = { provider: args.provider, name: args.model };
+
+  const agents = (typeof existing.agents === "object" && existing.agents !== null
+    ? { ...(existing.agents as Record<string, unknown>) }
+    : {}) as Record<string, unknown>;
+
+  const agentName = args.agent ?? "hermes";
+  if (Object.keys(agents).length === 0) {
+    agents.hermes = { command: "uwf-hermes", args: [] };
+  }
+
+  return {
+    ...existing,
+    providers,
+    models,
+    agents,
+    defaultAgent: existing.defaultAgent ?? agentName,
+    defaultModel: existing.defaultModel ?? "default",
+  };
+}
+
+/**
+ * Non-interactive setup. All required args provided via CLI flags.
+ */
+export async function cmdSetup(args: SetupArgs): Promise<Record<string, unknown>> {
+  const { storageRoot } = args;
+  mkdirSync(storageRoot, { recursive: true });
+
+  const configPath = getConfigPath(storageRoot);
+  const envPath = getEnvPath(storageRoot);
+
+  const existing = loadExistingConfig(configPath);
+  const merged = mergeConfig(existing, args);
+
+  writeFileSync(configPath, stringify(merged, { indent: 2 }), "utf8");
+
+  // Write API key to .env
+  const envName = apiKeyEnvName(args.provider);
+  const envData = loadEnvFile(envPath);
+  envData[envName] = args.apiKey;
+  saveEnvFile(envPath, envData);
+
+  return {
+    configPath,
+    envPath,
+    provider: args.provider,
+    model: args.model,
+    defaultAgent: merged.defaultAgent,
+  };
+}
+
+/** Read a line with terminal echo disabled (for secrets). */
+async function promptSecret(label: string): Promise<string> {
+  process.stdout.write(label);
+  return new Promise((resolve) => {
+    const rawWasSet = process.stdin.isRaw;
+    if (process.stdin.isTTY) {
+      process.stdin.setRawMode(true);
+    }
+    process.stdin.resume();
+    process.stdin.setEncoding("utf8");
+
+    let buf = "";
+    const onData = (chunk: string) => {
+      for (const c of chunk.toString()) {
+        if (c === "\n" || c === "\r" || c === "\u0004") {
+          if (process.stdin.isTTY) process.stdin.setRawMode(rawWasSet);
+          process.stdin.pause();
+          process.stdin.removeListener("data", onData);
+          process.stdout.write("\n");
+          resolve(buf.trim());
+          return;
+        }
+        if (c === "\u007F" || c === "\b") {
+          if (buf.length > 0) {
+            buf = buf.slice(0, -1);
+            process.stdout.write("\b \b");
+          }
+          continue;
+        }
+        if (c === "\u0003") {
+          if (process.stdin.isTTY) process.stdin.setRawMode(rawWasSet);
+          process.exit(130);
+        }
+        buf += c;
+        process.stdout.write("*");
+      }
+    };
+    process.stdin.on("data", onData);
+  });
+}
+
+/** Fetch available models from an OpenAI-compatible /models endpoint. */
+async function fetchModels(baseUrl: string, apiKey: string): Promise<string[]> {
+  try {
+    const url = `${baseUrl.replace(/\/+$/, "")}/models`;
+    const res = await fetch(url, {
+      headers: { Authorization: `Bearer ${apiKey}` },
+      signal: AbortSignal.timeout(10_000),
+    });
+    if (!res.ok) return [];
+    const body = (await res.json()) as { data?: { id: string }[] };
+    if (!Array.isArray(body.data)) return [];
+    const NON_CHAT = /speech|embed|image|video|audio|ocr|rerank|tts|asr|paraformer|sambert|cosyvoice|wordart|wanx|wan2|flux|stable-diffusion|gui-/i;
+    return body.data.map((m) => m.id).filter((id) => !NON_CHAT.test(id)).sort();
+  } catch {
+    return [];
+  }
+}
+
+/**
+ * Interactive setup — prompts user for provider, API key, model.
+ */
+export async function cmdSetupInteractive(storageRoot: string): Promise<Record<string, unknown>> {
+  const rl = createInterface({ input, output });
+
+  try {
+    console.log("Configure LLM provider for uwf workflow agents.\n");
+
+    // 1. Provider selection
+    const numWidth = String(PRESET_PROVIDERS.length + 1).length;
+    console.log("Select a provider:\n");
+    for (let i = 0; i < PRESET_PROVIDERS.length; i++) {
+      const p = PRESET_PROVIDERS[i];
+      if (!p) continue;
+      const num = String(i + 1).padStart(numWidth);
+      console.log(`  ${num}) ${p.label.padEnd(28)} ${p.baseUrl}`);
+    }
+    const customNum = String(PRESET_PROVIDERS.length + 1).padStart(numWidth);
+    console.log(`  ${customNum}) Custom (enter name and URL manually)\n`);
+
+    const choice = (await rl.question(`Choose [1-${PRESET_PROVIDERS.length + 1}]: `)).trim();
+    const choiceNum = Number.parseInt(choice, 10);
+    if (Number.isNaN(choiceNum) || choiceNum < 1 || choiceNum > PRESET_PROVIDERS.length + 1) {
+      throw new Error(`Invalid choice: ${choice}`);
+    }
+
+    let providerName: string;
+    let baseUrl: string;
+
+    if (choiceNum <= PRESET_PROVIDERS.length) {
+      const selected = PRESET_PROVIDERS[choiceNum - 1];
+      if (!selected) throw new Error("Invalid selection");
+      providerName = selected.name;
+      baseUrl = selected.baseUrl;
+      console.log(`\n  → ${selected.label} (${selected.baseUrl})\n`);
+    } else {
+      providerName = (await rl.question("Provider name (e.g. my-proxy): ")).trim();
+      if (!providerName) throw new Error("Provider name required");
+      baseUrl = (await rl.question("OpenAI-compatible API base URL: ")).trim();
+      if (!baseUrl) throw new Error("Base URL required");
+    }
+
+    // 2. API key
+    rl.close();
+    const apiKey = await promptSecret("API key: ");
+    if (!apiKey) throw new Error("API key required");
+
+    // 3. Model selection
+    const rl2 = createInterface({ input, output });
+    console.log("\nFetching available models...");
+    const models = await fetchModels(baseUrl, apiKey);
+
+    let model: string;
+    if (models.length > 0) {
+      console.log(`\nAvailable models (${models.length}):\n`);
+      const nw = String(models.length).length;
+      // Multi-column layout
+      const maxLen = models.reduce((m, s) => Math.max(m, s.length), 0);
+      const colWidth = nw + 2 + maxLen + 4; // "  N) name    "
+      const termCols = process.stdout.columns || 100;
+      const cols = Math.max(1, Math.floor(termCols / colWidth));
+      const rows = Math.ceil(models.length / cols);
+      for (let r = 0; r < rows; r++) {
+        let line = "";
+        for (let c = 0; c < cols; c++) {
+          const idx = c * rows + r;
+          if (idx >= models.length) break;
+          const num = String(idx + 1).padStart(nw);
+          const name = (models[idx] ?? "").padEnd(maxLen);
+          line += `  ${num}) ${name}  `;
+        }
+        console.log(line.trimEnd());
+      }
+      console.log(`\nChoose a number, or type a model name directly.`);
+      const modelInput = (await rl2.question(`Default model [1-${models.length}]: `)).trim();
+      if (!modelInput) throw new Error("Model required");
+      const modelNum = Number.parseInt(modelInput, 10);
+      if (!Number.isNaN(modelNum) && modelNum >= 1 && modelNum <= models.length) {
+        model = models[modelNum - 1] ?? modelInput;
+      } else {
+        model = modelInput;
+      }
+    } else {
+      console.log("Could not fetch models. Enter model name manually.");
+      model = (await rl2.question("Default model (e.g. qwen-plus, gpt-4o): ")).trim();
+      if (!model) throw new Error("Model required");
+    }
+
+    rl2.close();
+
+    console.log(`  → ${providerName}/${model}\n`);
+
+    await cmdSetup({
+      provider: providerName,
+      baseUrl,
+      apiKey,
+      model,
+      storageRoot,
+    });
+
+    console.log("Setup complete! Get started:\n");
+    console.log("  uwf workflow put <workflow.yaml>   Register a workflow");
+    console.log('  uwf thread start <name> -p "..."   Start a thread');
+    console.log("  uwf thread step <thread-id>        Execute next step");
+    console.log("");
+
+    return null as unknown as Record<string, unknown>;
+  } finally {
+    rl.close();
+  }
+}

packages/cli-uwf/src/commands/thread.ts

@@ -0,0 +1,465 @@
+import { execFileSync } from "node:child_process";
+
+import { validate } from "@uncaged/json-cas";
+import { getEnvPath, loadWorkflowConfig } from "@uncaged/uwf-agent-kit";
+import { evaluate } from "@uncaged/uwf-moderator";
+import type {
+  AgentAlias,
+  AgentConfig,
+  CasRef,
+  ModeratorContext,
+  StartNodePayload,
+  StartOutput,
+  StepContext,
+  StepNodePayload,
+  StepOutput,
+  ThreadId,
+  ThreadListItem,
+  WorkflowConfig,
+  WorkflowPayload,
+} from "@uncaged/uwf-protocol";
+import { generateUlid } from "@uncaged/workflow-util";
+import { config as loadDotenv } from "dotenv";
+
+import {
+  appendThreadHistory,
+  createUwfStore,
+  findThreadInHistory,
+  loadThreadHistory,
+  loadThreadsIndex,
+  loadWorkflowRegistry,
+  resolveWorkflowHash,
+  saveThreadsIndex,
+  type ThreadHistoryLine,
+  type UwfStore,
+} from "../store.js";
+import { isCasRef } from "../validate.js";
+
+const END_ROLE = "$END";
+
+type ChainState = {
+  startHash: CasRef;
+  start: StartNodePayload;
+  stepsNewestFirst: StepNodePayload[];
+  headIsStart: boolean;
+};
+
+export type KillOutput = {
+  thread: ThreadId;
+  archived: boolean;
+};
+
+function fail(message: string): never {
+  process.stderr.write(`${message}\n`);
+  process.exit(1);
+}
+
+async function resolveWorkflowCasRef(
+  uwf: UwfStore,
+  storageRoot: string,
+  workflowId: string,
+): Promise<CasRef> {
+  const registry = await loadWorkflowRegistry(storageRoot);
+  const hash = resolveWorkflowHash(registry, workflowId);
+  if (!isCasRef(hash)) {
+    fail(`workflow not found: ${workflowId}`);
+  }
+  const node = uwf.store.get(hash);
+  if (node === null) {
+    fail(`CAS node not found: ${hash}`);
+  }
+  if (node.type !== uwf.schemas.workflow) {
+    fail(`node ${hash} is not a Workflow (type ${node.type})`);
+  }
+  return hash;
+}
+
+function resolveWorkflowFromHead(uwf: UwfStore, head: CasRef): CasRef | null {
+  const node = uwf.store.get(head);
+  if (node === null) {
+    return null;
+  }
+
+  if (node.type === uwf.schemas.startNode) {
+    const payload = node.payload as StartNodePayload;
+    return payload.workflow;
+  }
+
+  const payload = node.payload as StepNodePayload;
+  if (typeof payload.start !== "string") {
+    return null;
+  }
+
+  const startNode = uwf.store.get(payload.start);
+  if (startNode === null || startNode.type !== uwf.schemas.startNode) {
+    return null;
+  }
+
+  return (startNode.payload as StartNodePayload).workflow;
+}
+
+export async function cmdThreadStart(
+  storageRoot: string,
+  workflowId: string,
+  prompt: string,
+): Promise<StartOutput> {
+  const uwf = await createUwfStore(storageRoot);
+  const workflowHash = await resolveWorkflowCasRef(uwf, storageRoot, workflowId);
+
+  const threadId = generateUlid(Date.now()) as ThreadId;
+  const startPayload: StartNodePayload = {
+    workflow: workflowHash,
+    prompt,
+  };
+
+  const headHash = await uwf.store.put(uwf.schemas.startNode, startPayload);
+  const node = uwf.store.get(headHash);
+  if (node === null || !validate(uwf.store, node)) {
+    fail("stored StartNode failed schema validation");
+  }
+
+  const index = await loadThreadsIndex(storageRoot);
+  index[threadId] = headHash;
+  await saveThreadsIndex(storageRoot, index);
+
+  return { workflow: workflowHash, thread: threadId };
+}
+
+export async function cmdThreadShow(storageRoot: string, threadId: ThreadId): Promise<StepOutput> {
+  const index = await loadThreadsIndex(storageRoot);
+  const activeHead = index[threadId];
+  if (activeHead !== undefined) {
+    const uwf = await createUwfStore(storageRoot);
+    const workflow = resolveWorkflowFromHead(uwf, activeHead);
+    if (workflow === null) {
+      fail(`failed to resolve workflow from head: ${activeHead}`);
+    }
+    return {
+      workflow,
+      thread: threadId,
+      head: activeHead,
+      done: false,
+    };
+  }
+
+  const hist = await findThreadInHistory(storageRoot, threadId);
+  if (hist !== null) {
+    return {
+      workflow: hist.workflow,
+      thread: threadId,
+      head: hist.head,
+      done: true,
+    };
+  }
+
+  fail(`thread not found: ${threadId}`);
+}
+
+async function threadListItemFromActive(
+  uwf: UwfStore,
+  threadId: ThreadId,
+  head: CasRef,
+): Promise<ThreadListItem | null> {
+  const workflow = resolveWorkflowFromHead(uwf, head);
+  if (workflow === null) {
+    return null;
+  }
+  return { thread: threadId, workflow, head };
+}
+
+export async function cmdThreadList(
+  storageRoot: string,
+  includeAll: boolean,
+): Promise<ThreadListItem[]> {
+  const uwf = await createUwfStore(storageRoot);
+  const index = await loadThreadsIndex(storageRoot);
+  const items: ThreadListItem[] = [];
+
+  for (const [threadId, head] of Object.entries(index)) {
+    const item = await threadListItemFromActive(uwf, threadId as ThreadId, head);
+    if (item !== null) {
+      items.push(item);
+    }
+  }
+
+  if (!includeAll) {
+    return items;
+  }
+
+  const activeIds = new Set(items.map((i) => i.thread));
+  const history = await loadThreadHistory(storageRoot);
+  for (const entry of history) {
+    if (!activeIds.has(entry.thread)) {
+      items.push({
+        thread: entry.thread,
+        workflow: entry.workflow,
+        head: entry.head,
+      });
+    }
+  }
+
+  return items;
+}
+
+function walkChain(uwf: UwfStore, headHash: CasRef): ChainState {
+  const headNode = uwf.store.get(headHash);
+  if (headNode === null) {
+    fail(`CAS node not found: ${headHash}`);
+  }
+
+  if (headNode.type === uwf.schemas.startNode) {
+    return {
+      startHash: headHash,
+      start: headNode.payload as StartNodePayload,
+      stepsNewestFirst: [],
+      headIsStart: true,
+    };
+  }
+
+  if (headNode.type !== uwf.schemas.stepNode) {
+    fail(`head ${headHash} is not a StartNode or StepNode`);
+  }
+
+  const stepsNewestFirst: StepNodePayload[] = [];
+  let hash: CasRef | null = headHash;
+
+  while (hash !== null) {
+    const node = uwf.store.get(hash);
+    if (node === null) {
+      fail(`CAS node not found while walking chain: ${hash}`);
+    }
+    if (node.type !== uwf.schemas.stepNode) {
+      break;
+    }
+    const payload = node.payload as StepNodePayload;
+    stepsNewestFirst.push(payload);
+    hash = payload.prev;
+  }
+
+  const newest = stepsNewestFirst[0];
+  if (newest === undefined) {
+    fail(`empty step chain at head ${headHash}`);
+  }
+
+  const startNode = uwf.store.get(newest.start);
+  if (startNode === null || startNode.type !== uwf.schemas.startNode) {
+    fail(`StartNode not found: ${newest.start}`);
+  }
+
+  return {
+    startHash: newest.start,
+    start: startNode.payload as StartNodePayload,
+    stepsNewestFirst,
+    headIsStart: false,
+  };
+}
+
+function expandOutput(uwf: UwfStore, outputRef: CasRef): unknown {
+  const node = uwf.store.get(outputRef);
+  if (node === null) {
+    return {};
+  }
+  return node.payload;
+}
+
+function buildModeratorContext(uwf: UwfStore, chain: ChainState): ModeratorContext {
+  const chronological = [...chain.stepsNewestFirst].reverse();
+  const steps: StepContext[] = chronological.map((step) => ({
+    role: step.role,
+    output: expandOutput(uwf, step.output),
+    detail: step.detail,
+    agent: step.agent,
+  }));
+  return { start: chain.start, steps };
+}
+
+function loadWorkflowPayload(uwf: UwfStore, workflowRef: CasRef): WorkflowPayload {
+  const node = uwf.store.get(workflowRef);
+  if (node === null) {
+    fail(`workflow CAS node not found: ${workflowRef}`);
+  }
+  if (node.type !== uwf.schemas.workflow) {
+    fail(`node ${workflowRef} is not a Workflow`);
+  }
+  return node.payload as WorkflowPayload;
+}
+
+function parseAgentOverride(override: string): AgentConfig {
+  const parts = override
+    .trim()
+    .split(/\s+/)
+    .filter((p) => p.length > 0);
+  const command = parts[0];
+  if (command === undefined) {
+    fail("agent override must not be empty");
+  }
+  return { command, args: parts.slice(1) };
+}
+
+function resolveAgentConfig(
+  config: WorkflowConfig,
+  workflow: WorkflowPayload,
+  role: string,
+  agentOverride: string | null,
+): AgentConfig {
+  if (agentOverride !== null) {
+    return parseAgentOverride(agentOverride);
+  }
+
+  let alias: AgentAlias = config.defaultAgent;
+  if (config.agentOverrides !== null) {
+    const roleOverrides = config.agentOverrides[workflow.name];
+    if (roleOverrides !== undefined && roleOverrides[role] !== undefined) {
+      alias = roleOverrides[role];
+    }
+  }
+
+  const agentConfig = config.agents[alias];
+  if (agentConfig === undefined) {
+    fail(`unknown agent alias in config: ${alias}`);
+  }
+  return agentConfig;
+}
+
+function spawnAgent(agent: AgentConfig, threadId: ThreadId, role: string): CasRef {
+  const argv = [...agent.args, threadId, role];
+  let stdout: string;
+  try {
+    stdout = execFileSync(agent.command, argv, {
+      encoding: "utf8",
+      env: process.env,
+      stdio: ["ignore", "pipe", "pipe"],
+    });
+  } catch (e) {
+    const err = e as NodeJS.ErrnoException & { stderr?: Buffer | string };
+    const stderr =
+      err.stderr === undefined
+        ? ""
+        : typeof err.stderr === "string"
+          ? err.stderr
+          : err.stderr.toString("utf8");
+    const detail = stderr.trim() !== "" ? `: ${stderr.trim()}` : "";
+    fail(`agent command failed (${agent.command})${detail}`);
+  }
+
+  const line = stdout.trim().split("\n").pop()?.trim() ?? "";
+  if (!isCasRef(line)) {
+    fail(`agent stdout is not a valid CAS hash: ${line || "(empty)"}`);
+  }
+  return line;
+}
+
+async function archiveThread(
+  storageRoot: string,
+  threadId: ThreadId,
+  workflow: CasRef,
+  head: CasRef,
+): Promise<void> {
+  const index = await loadThreadsIndex(storageRoot);
+  delete index[threadId];
+  await saveThreadsIndex(storageRoot, index);
+  await appendThreadHistory(storageRoot, {
+    thread: threadId,
+    workflow,
+    head,
+    completedAt: Date.now(),
+  });
+}
+
+export async function cmdThreadStep(
+  storageRoot: string,
+  threadId: ThreadId,
+  agentOverride: string | null,
+): Promise<StepOutput> {
+  const index = await loadThreadsIndex(storageRoot);
+  const headHash = index[threadId];
+  if (headHash === undefined) {
+    fail(`thread not active: ${threadId}`);
+  }
+
+  const uwf = await createUwfStore(storageRoot);
+  const chain = walkChain(uwf, headHash);
+  const workflowHash = chain.start.workflow;
+  const workflow = loadWorkflowPayload(uwf, workflowHash);
+  const context = buildModeratorContext(uwf, chain);
+
+  const nextResult = await evaluate(workflow, context);
+  if (!nextResult.ok) {
+    fail(nextResult.error.message);
+  }
+
+  if (nextResult.value === END_ROLE) {
+    await archiveThread(storageRoot, threadId, workflowHash, headHash);
+    return {
+      workflow: workflowHash,
+      thread: threadId,
+      head: headHash,
+      done: true,
+    };
+  }
+
+  const role = nextResult.value;
+  const config = await loadWorkflowConfig(storageRoot);
+  const agent = resolveAgentConfig(config, workflow, role, agentOverride);
+
+  loadDotenv({ path: getEnvPath(storageRoot) });
+  const newHead = spawnAgent(agent, threadId, role);
+
+  // Re-create store to pick up nodes written by the agent subprocess
+  const uwfAfter = await createUwfStore(storageRoot);
+  const newNode = uwfAfter.store.get(newHead);
+  if (newNode === null || newNode.type !== uwfAfter.schemas.stepNode) {
+    fail(`agent returned hash that is not a StepNode: ${newHead}`);
+  }
+
+  // Reload threads index to avoid overwriting changes made by the agent subprocess
+  const freshIndex = await loadThreadsIndex(storageRoot);
+  freshIndex[threadId] = newHead;
+  await saveThreadsIndex(storageRoot, freshIndex);
+
+  const chainAfter = walkChain(uwfAfter, newHead);
+  const contextAfter = buildModeratorContext(uwfAfter, chainAfter);
+  const afterResult = await evaluate(workflow, contextAfter);
+  if (!afterResult.ok) {
+    fail(afterResult.error.message);
+  }
+
+  const done = afterResult.value === END_ROLE;
+  if (done) {
+    await archiveThread(storageRoot, threadId, workflowHash, newHead);
+  }
+
+  return {
+    workflow: workflowHash,
+    thread: threadId,
+    head: newHead,
+    done,
+  };
+}
+
+export async function cmdThreadKill(storageRoot: string, threadId: ThreadId): Promise<KillOutput> {
+  const index = await loadThreadsIndex(storageRoot);
+  const head = index[threadId];
+  if (head === undefined) {
+    fail(`thread not active: ${threadId}`);
+  }
+
+  const uwf = await createUwfStore(storageRoot);
+  const workflow = resolveWorkflowFromHead(uwf, head);
+  if (workflow === null) {
+    fail(`failed to resolve workflow from head: ${head}`);
+  }
+
+  delete index[threadId];
+  await saveThreadsIndex(storageRoot, index);
+
+  const historyEntry: ThreadHistoryLine = {
+    thread: threadId,
+    workflow,
+    head,
+    completedAt: Date.now(),
+  };
+  await appendThreadHistory(storageRoot, historyEntry);
+
+  return { thread: threadId, archived: true };
+}

packages/cli-uwf/src/commands/workflow.ts

@@ -0,0 +1,153 @@
+import { readFile } from "node:fs/promises";
+
+import type { JSONSchema } from "@uncaged/json-cas";
+import { putSchema, validate } from "@uncaged/json-cas";
+import type { CasRef, RoleDefinition, WorkflowPayload } from "@uncaged/uwf-protocol";
+import { parse } from "yaml";
+
+import {
+  createUwfStore,
+  findRegistryName,
+  loadWorkflowRegistry,
+  resolveWorkflowHash,
+  saveWorkflowRegistry,
+  type UwfStore,
+} from "../store.js";
+import { parseWorkflowPayload } from "../validate.js";
+
+export type WorkflowListEntry = {
+  name: string;
+  hash: CasRef;
+};
+
+export type WorkflowPutOutput = {
+  name: string;
+  hash: CasRef;
+};
+
+export type WorkflowShowOutput = {
+  hash: CasRef;
+  name: string | null;
+  type: CasRef;
+  payload: WorkflowPayload;
+  timestamp: number;
+};
+
+function fail(message: string): never {
+  process.stderr.write(`${message}\n`);
+  process.exit(1);
+}
+
+function isJsonSchema(value: unknown): value is JSONSchema {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+async function resolveOutputSchemaRef(
+  uwf: UwfStore,
+  roleName: string,
+  outputSchema: unknown,
+): Promise<CasRef> {
+  if (!isJsonSchema(outputSchema)) {
+    fail(`role "${roleName}": outputSchema must be a JSON Schema object`);
+  }
+  const schema: JSONSchema = outputSchema.title === undefined
+    ? { ...outputSchema, title: roleName }
+    : outputSchema;
+  return putSchema(uwf.store, schema);
+}
+
+async function materializeWorkflowPayload(
+  uwf: UwfStore,
+  raw: WorkflowPayload,
+): Promise<WorkflowPayload> {
+  const roles: Record<string, RoleDefinition> = {};
+  for (const [roleName, role] of Object.entries(raw.roles)) {
+    const outputSchema = await resolveOutputSchemaRef(
+      uwf,
+      `${raw.name}.${roleName}`,
+      role.outputSchema,
+    );
+    roles[roleName] = {
+      description: role.description,
+      systemPrompt: role.systemPrompt,
+      outputSchema,
+    };
+  }
+  return {
+    name: raw.name,
+    description: raw.description,
+    roles,
+    conditions: raw.conditions,
+    graph: raw.graph,
+  };
+}
+
+export async function cmdWorkflowPut(
+  storageRoot: string,
+  filePath: string,
+): Promise<WorkflowPutOutput> {
+  let text: string;
+  try {
+    text = await readFile(filePath, "utf8");
+  } catch {
+    fail(`file not found: ${filePath}`);
+  }
+
+  let raw: unknown;
+  try {
+    raw = parse(text) as unknown;
+  } catch (e) {
+    fail(`invalid YAML: ${e instanceof Error ? e.message : String(e)}`);
+  }
+
+  const payload = parseWorkflowPayload(raw);
+  if (payload === null) {
+    fail("invalid workflow YAML: expected WorkflowPayload shape");
+  }
+
+  const uwf = await createUwfStore(storageRoot);
+  const materialized = await materializeWorkflowPayload(uwf, payload);
+
+  const hash = await uwf.store.put(uwf.schemas.workflow, materialized);
+  const node = uwf.store.get(hash);
+  if (node === null || !validate(uwf.store, node)) {
+    fail("stored workflow failed schema validation");
+  }
+
+  const registry = await loadWorkflowRegistry(storageRoot);
+  registry[materialized.name] = hash;
+  await saveWorkflowRegistry(storageRoot, registry);
+
+  return { name: materialized.name, hash };
+}
+
+export async function cmdWorkflowShow(
+  storageRoot: string,
+  id: string,
+): Promise<WorkflowShowOutput> {
+  const uwf = await createUwfStore(storageRoot);
+  const registry = await loadWorkflowRegistry(storageRoot);
+  const hash = resolveWorkflowHash(registry, id);
+
+  const node = uwf.store.get(hash);
+  if (node === null) {
+    fail(`CAS node not found: ${hash}`);
+  }
+  if (node.type !== uwf.schemas.workflow) {
+    fail(`node ${hash} is not a Workflow (type ${node.type})`);
+  }
+
+  const payload = node.payload as WorkflowPayload;
+  return {
+    hash,
+    name: findRegistryName(registry, hash),
+    type: node.type,
+    payload,
+    timestamp: node.timestamp,
+  };
+}
+
+export async function cmdWorkflowList(storageRoot: string): Promise<WorkflowListEntry[]> {
+  const registry = await loadWorkflowRegistry(storageRoot);
+  return Object.entries(registry).map(([name, hash]) => ({ name, hash }));
+}

packages/cli-uwf/src/format.ts

@@ -0,0 +1,12 @@
+import { stringify } from "yaml";
+
+export type OutputFormat = "json" | "yaml";
+
+export function formatOutput(data: unknown, format: OutputFormat): string {
+  switch (format) {
+    case "json":
+      return JSON.stringify(data);
+    case "yaml":
+      return stringify(data).trimEnd();
+  }
+}

packages/cli-uwf/src/schemas.ts

@@ -0,0 +1,26 @@
+import type { Hash, Store } from "@uncaged/json-cas";
+import { putSchema } from "@uncaged/json-cas";
+import {
+  START_NODE_SCHEMA,
+  STEP_NODE_SCHEMA,
+  WORKFLOW_SCHEMA,
+} from "@uncaged/uwf-protocol";
+
+export type UwfSchemaHashes = {
+  workflow: Hash;
+  startNode: Hash;
+  stepNode: Hash;
+};
+
+/**
+ * Register Workflow, StartNode, and StepNode JSON Schemas in the CAS store.
+ * Idempotent: safe to call on every CLI invocation.
+ */
+export async function registerUwfSchemas(store: Store): Promise<UwfSchemaHashes> {
+  const [workflow, startNode, stepNode] = await Promise.all([
+    putSchema(store, WORKFLOW_SCHEMA),
+    putSchema(store, START_NODE_SCHEMA),
+    putSchema(store, STEP_NODE_SCHEMA),
+  ]);
+  return { workflow, startNode, stepNode };
+}

packages/cli-uwf/src/store.ts

@@ -0,0 +1,212 @@
+import { appendFile, mkdir, readFile, writeFile } from "node:fs/promises";
+import { homedir } from "node:os";
+import { join } from "node:path";
+
+import type { Hash, Store } from "@uncaged/json-cas";
+import { createFsStore } from "@uncaged/json-cas-fs";
+import type { CasRef, ThreadId, ThreadListItem, ThreadsIndex } from "@uncaged/uwf-protocol";
+import { parse, stringify } from "yaml";
+
+import { registerUwfSchemas, type UwfSchemaHashes } from "./schemas.js";
+
+export type WorkflowRegistry = Record<string, CasRef>;
+
+/** Default filesystem root for uwf data (`~/.uncaged/workflow`). */
+export function getDefaultStorageRoot(): string {
+  return join(homedir(), ".uncaged", "workflow");
+}
+
+/**
+ * Resolve storage root.
+ * Priority: `UNCAGED_WORKFLOW_STORAGE_ROOT` → `WORKFLOW_STORAGE_ROOT` → default.
+ */
+export function resolveStorageRoot(): string {
+  const internal = process.env.UNCAGED_WORKFLOW_STORAGE_ROOT;
+  if (internal !== undefined && internal !== "") {
+    return internal;
+  }
+  const userOverride = process.env.WORKFLOW_STORAGE_ROOT;
+  if (userOverride !== undefined && userOverride !== "") {
+    return userOverride;
+  }
+  return getDefaultStorageRoot();
+}
+
+export function getCasDir(storageRoot: string): string {
+  return join(storageRoot, "cas");
+}
+
+export function getRegistryPath(storageRoot: string): string {
+  return join(storageRoot, "workflows.yaml");
+}
+
+export function getThreadsPath(storageRoot: string): string {
+  return join(storageRoot, "threads.yaml");
+}
+
+export function getHistoryPath(storageRoot: string): string {
+  return join(storageRoot, "history.jsonl");
+}
+
+export type ThreadHistoryLine = ThreadListItem & {
+  completedAt: number;
+};
+
+export type UwfStore = {
+  storageRoot: string;
+  store: Store;
+  schemas: UwfSchemaHashes;
+};
+
+export async function createUwfStore(storageRoot: string): Promise<UwfStore> {
+  const casDir = getCasDir(storageRoot);
+  await mkdir(casDir, { recursive: true });
+  const store = createFsStore(casDir);
+  const schemas = await registerUwfSchemas(store);
+  return { storageRoot, store, schemas };
+}
+
+export async function loadWorkflowRegistry(storageRoot: string): Promise<WorkflowRegistry> {
+  const path = getRegistryPath(storageRoot);
+  try {
+    const text = await readFile(path, "utf8");
+    const raw = parse(text) as unknown;
+    if (raw === null || typeof raw !== "object" || Array.isArray(raw)) {
+      return {};
+    }
+    const registry: WorkflowRegistry = {};
+    for (const [name, hash] of Object.entries(raw as Record<string, unknown>)) {
+      if (typeof hash === "string") {
+        registry[name] = hash;
+      }
+    }
+    return registry;
+  } catch (e) {
+    const err = e as NodeJS.ErrnoException;
+    if (err.code === "ENOENT") {
+      return {};
+    }
+    throw e;
+  }
+}
+
+export async function saveWorkflowRegistry(
+  storageRoot: string,
+  registry: WorkflowRegistry,
+): Promise<void> {
+  const path = getRegistryPath(storageRoot);
+  await mkdir(storageRoot, { recursive: true });
+  const text = stringify(registry, { indent: 2 });
+  await writeFile(path, text, "utf8");
+}
+
+export function resolveWorkflowHash(registry: WorkflowRegistry, id: string): CasRef {
+  return registry[id] !== undefined ? registry[id] : id;
+}
+
+export function findRegistryName(registry: WorkflowRegistry, hash: Hash): string | null {
+  for (const [name, h] of Object.entries(registry)) {
+    if (h === hash) {
+      return name;
+    }
+  }
+  return null;
+}
+
+export async function loadThreadsIndex(storageRoot: string): Promise<ThreadsIndex> {
+  const path = getThreadsPath(storageRoot);
+  try {
+    const text = await readFile(path, "utf8");
+    const raw = parse(text) as unknown;
+    if (raw === null || typeof raw !== "object" || Array.isArray(raw)) {
+      return {};
+    }
+    const index: ThreadsIndex = {};
+    for (const [threadId, head] of Object.entries(raw as Record<string, unknown>)) {
+      if (typeof head === "string") {
+        index[threadId as ThreadId] = head;
+      }
+    }
+    return index;
+  } catch (e) {
+    const err = e as NodeJS.ErrnoException;
+    if (err.code === "ENOENT") {
+      return {};
+    }
+    throw e;
+  }
+}
+
+export async function saveThreadsIndex(storageRoot: string, index: ThreadsIndex): Promise<void> {
+  const path = getThreadsPath(storageRoot);
+  await mkdir(storageRoot, { recursive: true });
+  const text = stringify(index, { indent: 2 });
+  await writeFile(path, text, "utf8");
+}
+
+export async function loadThreadHistory(storageRoot: string): Promise<ThreadHistoryLine[]> {
+  const path = getHistoryPath(storageRoot);
+  try {
+    const text = await readFile(path, "utf8");
+    const lines: ThreadHistoryLine[] = [];
+    for (const line of text.split("\n")) {
+      const trimmed = line.trim();
+      if (trimmed === "") {
+        continue;
+      }
+      let raw: unknown;
+      try {
+        raw = JSON.parse(trimmed) as unknown;
+      } catch {
+        continue;
+      }
+      if (raw === null || typeof raw !== "object" || Array.isArray(raw)) {
+        continue;
+      }
+      const rec = raw as Record<string, unknown>;
+      const thread = rec.thread;
+      const workflow = rec.workflow;
+      const head = rec.head;
+      const completedAt = rec.completedAt;
+      if (
+        typeof thread === "string" &&
+        typeof workflow === "string" &&
+        typeof head === "string" &&
+        typeof completedAt === "number"
+      ) {
+        lines.push({ thread: thread as ThreadId, workflow, head, completedAt });
+      }
+    }
+    return lines;
+  } catch (e) {
+    const err = e as NodeJS.ErrnoException;
+    if (err.code === "ENOENT") {
+      return [];
+    }
+    throw e;
+  }
+}
+
+export async function findThreadInHistory(
+  storageRoot: string,
+  threadId: ThreadId,
+): Promise<ThreadHistoryLine | null> {
+  const history = await loadThreadHistory(storageRoot);
+  for (let i = history.length - 1; i >= 0; i--) {
+    const entry = history[i];
+    if (entry !== undefined && entry.thread === threadId) {
+      return entry;
+    }
+  }
+  return null;
+}
+
+export async function appendThreadHistory(
+  storageRoot: string,
+  entry: ThreadHistoryLine,
+): Promise<void> {
+  const path = getHistoryPath(storageRoot);
+  await mkdir(storageRoot, { recursive: true });
+  const line = `${JSON.stringify(entry)}\n`;
+  await appendFile(path, line, "utf8");
+}

packages/cli-uwf/src/validate.ts

@@ -0,0 +1,71 @@
+import type { CasRef, WorkflowPayload } from "@uncaged/uwf-protocol";
+
+const CAS_REF_PATTERN = /^[0-9A-HJKMNP-TV-Z]{13}$/;
+
+export function isCasRef(value: string): value is CasRef {
+  return CAS_REF_PATTERN.test(value);
+}
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+function isRoleDefinition(value: unknown): boolean {
+  if (!isRecord(value)) {
+    return false;
+  }
+  const outputSchema = value.outputSchema;
+  const schemaOk = isRecord(outputSchema) && typeof outputSchema.type === "string";
+  return (
+    typeof value.description === "string" && typeof value.systemPrompt === "string" && schemaOk
+  );
+}
+
+function isConditionDefinition(value: unknown): boolean {
+  if (!isRecord(value)) {
+    return false;
+  }
+  return typeof value.description === "string" && typeof value.expression === "string";
+}
+
+function isTransition(value: unknown): boolean {
+  if (!isRecord(value)) {
+    return false;
+  }
+  const condition = value.condition;
+  return typeof value.role === "string" && (condition === null || typeof condition === "string");
+}
+
+function isStringRecord(value: unknown, itemCheck: (item: unknown) => boolean): boolean {
+  if (!isRecord(value)) {
+    return false;
+  }
+  return Object.values(value).every(itemCheck);
+}
+
+function isGraph(value: unknown): boolean {
+  if (!isRecord(value)) {
+    return false;
+  }
+  return Object.values(value).every(
+    (transitions) => Array.isArray(transitions) && transitions.every((t) => isTransition(t)),
+  );
+}
+
+/** Validate YAML-parsed workflow document shape (outputSchema may be inline JSON Schema). */
+export function parseWorkflowPayload(raw: unknown): WorkflowPayload | null {
+  if (!isRecord(raw)) {
+    return null;
+  }
+  if (typeof raw.name !== "string" || typeof raw.description !== "string") {
+    return null;
+  }
+  if (
+    !isStringRecord(raw.roles, isRoleDefinition) ||
+    !isStringRecord(raw.conditions, isConditionDefinition) ||
+    !isGraph(raw.graph)
+  ) {
+    return null;
+  }
+  return raw as WorkflowPayload;
+}

packages/cli-uwf/tsconfig.json

@@ -0,0 +1,13 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "dist"
+  },
+  "include": ["src"],
+  "references": [
+    { "path": "../uwf-protocol" },
+    { "path": "../uwf-moderator" },
+    { "path": "../uwf-agent-kit" }
+  ]
+}

packages/cli-workflow/__tests__/commands.test.ts

@@ -20,9 +20,6 @@ import { addCliArgs } from "./bundle-fixture.js";
 const fixtureDescriptor = `export const descriptor = { description: "fixture", roles: {}, graph: { edges: [] } };
 `;
 
-const wfPutImport = `import { putContentMerkleNode } from "@uncaged/workflow-cas";
-`;
-
 function casStoredForm(raw: string): string {
   return serializeMerkleNode(createContentMerkleNode(raw));
 }
@@ -52,12 +49,12 @@ describe("cli workflow commands", () => {
     const bundlePath = join(bundleDir, "demo.esm.js");
     await writeFile(
       bundlePath,
-      `${fixtureDescriptor}${wfPutImport}import fs from "node:fs";
+      `${fixtureDescriptor}import fs from "node:fs";
 
 export const run = async function* (input, options) {
   fs.existsSync(".");
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, input.prompt);
+  const h = await cas.put(input.prompt);
   yield { role: "noop", contentHash: h, meta: { done: true }, refs: [h] };
   return { returnCode: 0, summary: "done" };
 }
@@ -155,10 +152,9 @@ export const run = async function* (input) { return { returnCode: 0, summary: in
   },
   graph: { edges: [] },
 };
-${wfPutImport}
 export const run = async function* (input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, input.prompt);
+  const h = await cas.put( input.prompt);
   yield { role: "greeter", contentHash: h, meta: { greeting: "hi" }, refs: [h] };
   return { returnCode: 0, summary: "ok" };
 };
@@ -197,9 +193,9 @@ export const run = async function* (input, options) {
     const bundlePath = join(bundleDir, "demo.esm.js");
     await writeFile(
       bundlePath,
-      `${fixtureDescriptor}${wfPutImport}export const run = async function* (_input, options) {
+      `${fixtureDescriptor}export const run = async function* (_input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "x");
+  const h = await cas.put( "x");
   yield { role: "a", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "x" };
 }
@@ -228,9 +224,9 @@ export const run = async function* (input, options) {
     const dtsPath = join(bundleDir, "types.d.ts");
     await writeFile(
       bundlePath,
-      `${fixtureDescriptor}${wfPutImport}export const run = async function* (_input, options) {
+      `${fixtureDescriptor}export const run = async function* (_input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "x");
+  const h = await cas.put( "x");
   yield { role: "a", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "x" };
 }
@@ -261,9 +257,9 @@ export const run = async function* (input, options) {
     const bundlePath = join(bundleDir, "demo.esm.js");
     await writeFile(
       bundlePath,
-      `${fixtureDescriptor}${wfPutImport}export const run = async function* (_input, options) {
+      `${fixtureDescriptor}export const run = async function* (_input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "x");
+  const h = await cas.put( "x");
   yield { role: "a", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "x" };
 }
@@ -284,16 +280,16 @@ export const run = async function* (input, options) {
     const bundleDir = join(storageRoot, "src");
     await mkdir(bundleDir, { recursive: true });
     const bundlePath = join(bundleDir, "demo.esm.js");
-    const v1 = `${fixtureDescriptor}${wfPutImport}export const run = async function* (_input, options) {
+    const v1 = `${fixtureDescriptor}export const run = async function* (_input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "v1");
+  const h = await cas.put( "v1");
   yield { role: "a", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "v1" };
 }
 `;
-    const v2 = `${fixtureDescriptor}${wfPutImport}export const run = async function* (_input, options) {
+    const v2 = `${fixtureDescriptor}export const run = async function* (_input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "v2");
+  const h = await cas.put( "v2");
   yield { role: "a", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "v2" };
 }
@@ -326,16 +322,16 @@ export const run = async function* (input, options) {
     const bundleDir = join(storageRoot, "src");
     await mkdir(bundleDir, { recursive: true });
     const bundlePath = join(bundleDir, "demo.esm.js");
-    const v1 = `${fixtureDescriptor}${wfPutImport}export const run = async function* (_input, options) {
+    const v1 = `${fixtureDescriptor}export const run = async function* (_input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "v1");
+  const h = await cas.put( "v1");
   yield { role: "a", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "v1" };
 }
 `;
-    const v2 = `${fixtureDescriptor}${wfPutImport}export const run = async function* (_input, options) {
+    const v2 = `${fixtureDescriptor}export const run = async function* (_input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "v2");
+  const h = await cas.put( "v2");
   yield { role: "a", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "v2" };
 }
@@ -378,9 +374,9 @@ export const run = async function* (input, options) {
     const bundlePath = join(bundleDir, "demo.esm.js");
     await writeFile(
       bundlePath,
-      `${fixtureDescriptor}${wfPutImport}export const run = async function* (_input, options) {
+      `${fixtureDescriptor}export const run = async function* (_input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "x");
+  const h = await cas.put( "x");
   yield { role: "a", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "x" };
 }
@@ -391,9 +387,9 @@ export const run = async function* (input, options) {
     expect(add1.ok).toBe(true);
     await writeFile(
       bundlePath,
-      `${fixtureDescriptor}${wfPutImport}export const run = async function* (_input, options) {
+      `${fixtureDescriptor}export const run = async function* (_input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "y");
+  const h = await cas.put( "y");
   yield { role: "a", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "y" };
 }
@@ -446,9 +442,9 @@ export const run = async function* (input, options) {
     const bundlePath = join(bundleDir, "demo.esm.js");
     await writeFile(
       bundlePath,
-      `${fixtureDescriptor}${wfPutImport}export const run = async function* (_input, options) {
+      `${fixtureDescriptor}export const run = async function* (_input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "x");
+  const h = await cas.put( "x");
   yield { role: "a", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "x" };
 }
@@ -463,9 +459,9 @@ export const run = async function* (input, options) {
     const hash1 = add1.value.hash;
     await writeFile(
       bundlePath,
-      `${fixtureDescriptor}${wfPutImport}export const run = async function* (_input, options) {
+      `${fixtureDescriptor}export const run = async function* (_input, options) {
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "y");
+  const h = await cas.put( "y");
   yield { role: "a", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "y" };
 }

packages/cli-workflow/__tests__/fork-cli.test.ts

@@ -15,9 +15,7 @@ import { addCliArgs } from "./bundle-fixture.js";
 import { ensureTestWorkflowRegistryConfig } from "./workflow-registry-fixture.js";
 
 /** Three-role workflow that respects `input.steps` for fork/resume. */
-const threeRoleBundleSource = `import { putContentMerkleNode } from "@uncaged/workflow-cas";
-
-export const descriptor = {
+const threeRoleBundleSource = `export const descriptor = {
   description: "fork-cli",
   roles: {
     planner: { description: "planner", schema: {} },
@@ -30,16 +28,16 @@ export const run = async function* (input, options) {
   const cas = options.cas;
   const has = (r) => input.steps.some((s) => s.role === r);
   if (!has("planner")) {
-    const h = await putContentMerkleNode(cas, "p1");
+    const h = await cas.put( "p1");
     yield { role: "planner", contentHash: h, meta: { k: "planner" }, refs: [h] };
   }
   if (!has("coder")) {
-    const h = await putContentMerkleNode(cas, "c1");
+    const h = await cas.put( "c1");
     yield { role: "coder", contentHash: h, meta: { k: "coder" }, refs: [h] };
   }
   if (!has("reviewer")) {
     const body = "rev-" + String(input.steps.length);
-    const h = await putContentMerkleNode(cas, body);
+    const h = await cas.put( body);
     yield { role: "reviewer", contentHash: h, meta: { k: "reviewer" }, refs: [h] };
   }
   return { returnCode: 0, summary: "done" };

packages/cli-workflow/__tests__/thread-cli.test.ts

@@ -23,9 +23,6 @@ import { resolveThreadRecord } from "../src/thread-scan.js";
 import { addCliArgs } from "./bundle-fixture.js";
 import { ensureTestWorkflowRegistryConfig } from "./workflow-registry-fixture.js";
 
-const wfPutImport = `import { putContentMerkleNode } from "@uncaged/workflow-cas";
-`;
-
 const threadFixtureDescriptor = `export const descriptor = {
   description: "thread-cli",
   roles: {
@@ -41,25 +38,23 @@ const threadFixtureDescriptor = `export const descriptor = {
 `;
 
 const fastBundleSource = `${threadFixtureDescriptor}
-${wfPutImport}
 export const run = async function* (input, options) {
   const cas = options.cas;
-  let h = await putContentMerkleNode(cas, "plan");
+  let h = await cas.put( "plan");
   yield { role: "planner", contentHash: h, meta: { plan: input.prompt }, refs: [h] };
-  h = await putContentMerkleNode(cas, "code");
+  h = await cas.put( "code");
   yield { role: "coder", contentHash: h, meta: { diff: "y" }, refs: [h] };
   return { returnCode: 0, summary: "done" };
 };
 `;
 
 const slowPlannerBundleSource = `${threadFixtureDescriptor}
-${wfPutImport}
 export const run = async function* (input, options) {
   await new Promise((r) => setTimeout(r, 400));
   const cas = options.cas;
-  let h = await putContentMerkleNode(cas, "plan");
+  let h = await cas.put( "plan");
   yield { role: "planner", contentHash: h, meta: { plan: input.prompt }, refs: [h] };
-  h = await putContentMerkleNode(cas, "code");
+  h = await cas.put( "code");
   yield { role: "coder", contentHash: h, meta: { diff: "y" }, refs: [h] };
   return { returnCode: 0, summary: "done" };
 };
@@ -68,37 +63,34 @@ export const run = async function* (input, options) {
 const cliEntryPath = fileURLToPath(new URL("../src/cli.ts", import.meta.url));
 
 const abortablePlannerBundleSource = `${threadFixtureDescriptor}
-${wfPutImport}
 export const run = async function* (input, options) {
   const cas = options.cas;
-  let h = await putContentMerkleNode(cas, "plan");
+  let h = await cas.put( "plan");
   yield { role: "planner", contentHash: h, meta: { plan: input.prompt }, refs: [h] };
   await new Promise((r) => setTimeout(r, 10000));
-  h = await putContentMerkleNode(cas, "code");
+  h = await cas.put( "code");
   yield { role: "coder", contentHash: h, meta: { diff: "y" }, refs: [h] };
   return { returnCode: 0, summary: "done" };
 };
 `;
 
 const pauseResumeBundleSource = `${threadFixtureDescriptor}
-${wfPutImport}
 export const run = async function* (_input, options) {
   const cas = options.cas;
-  let h = await putContentMerkleNode(cas, "f");
+  let h = await cas.put( "f");
   yield { role: "first", contentHash: h, meta: {}, refs: [h] };
   await new Promise((r) => setTimeout(r, 1500));
-  h = await putContentMerkleNode(cas, "s");
+  h = await cas.put( "s");
   yield { role: "second", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "done" };
 };
 `;
 
 const delayedFirstYieldBundleSource = `${threadFixtureDescriptor}
-${wfPutImport}
 export const run = async function* (_input, options) {
   await new Promise((r) => setTimeout(r, 900));
   const cas = options.cas;
-  const h = await putContentMerkleNode(cas, "x");
+  const h = await cas.put( "x");
   yield { role: "only", contentHash: h, meta: {}, refs: [h] };
   return { returnCode: 0, summary: "done" };
 };

packages/cli-workflow/src/commands/init/templates.ts

@@ -51,7 +51,6 @@ export const greeterRole: RoleDefinition<HelloTemplateMeta["greeter"]> = {
   description: "Says hello — replace with your first role.",
   systemPrompt: "You are a helpful assistant. Reply with one short friendly sentence.",
   schema: greeterMetaSchema,
-  extractRefs: null,
 };
 `;
 }

packages/cli-workflow/src/skill.ts

@@ -249,8 +249,7 @@ Each role has:
 |-------|------|---------|
 | \`description\` | string | What the role does |
 | \`systemPrompt\` | string | System prompt for the agent |
-| \`schema\` | ZodSchema | Validates the extracted meta |
-| \`extractRefs\` | fn or null | Extracts CAS hashes from meta for DAG linking |
+| \`schema\` | ZodSchema | Validates meta; annotate CAS hash strings with \`.meta({ casRef: true })\` for DAG linking |
 
 ## Development Workflow
 

packages/uwf-agent-hermes/package.json

@@ -0,0 +1,32 @@
+{
+  "name": "@uncaged/uwf-agent-hermes",
+  "version": "0.1.0",
+  "files": [
+    "src",
+    "dist",
+    "package.json"
+  ],
+  "type": "module",
+  "bin": {
+    "uwf-hermes": "./src/cli.ts"
+  },
+  "exports": {
+    ".": {
+      "bun": "./src/index.ts",
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
+  "scripts": {
+    "test": "bun test"
+  },
+  "dependencies": {
+    "@uncaged/uwf-agent-kit": "workspace:^"
+  },
+  "devDependencies": {
+    "typescript": "^5.8.3"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/uwf-agent-hermes/src/cli.ts

@@ -0,0 +1,6 @@
+#!/usr/bin/env bun
+
+import { createHermesAgent } from "./hermes.js";
+
+const main = createHermesAgent();
+void main();

packages/uwf-agent-hermes/src/hermes.ts

@@ -0,0 +1,90 @@
+import { spawn } from "node:child_process";
+
+import { type AgentContext, createAgent } from "@uncaged/uwf-agent-kit";
+
+const HERMES_COMMAND = "hermes";
+const HERMES_MAX_TURNS = 90;
+
+function buildHistorySummary(history: AgentContext["history"]): string {
+  if (history.length === 0) {
+    return "";
+  }
+
+  const lines: string[] = ["## Previous Steps"];
+  for (let i = 0; i < history.length; i++) {
+    const step = history[i];
+    if (step === undefined) {
+      continue;
+    }
+    lines.push("");
+    lines.push(`### Step ${i + 1}: ${step.role}`);
+    lines.push(`Output: ${JSON.stringify(step.output)}`);
+    lines.push(`Agent: ${step.agent}`);
+  }
+  return lines.join("\n");
+}
+
+/** Assemble system prompt, task, and prior step outputs for Hermes. */
+export function buildHermesPrompt(ctx: AgentContext): string {
+  const parts: string[] = [ctx.systemPrompt, "", "## Task", ctx.prompt];
+  const historyBlock = buildHistorySummary(ctx.history);
+  if (historyBlock !== "") {
+    parts.push("", historyBlock);
+  }
+  return parts.join("\n");
+}
+
+function spawnHermesChat(prompt: string): Promise<string> {
+  return new Promise((resolve, reject) => {
+    const args = [
+      "chat",
+      "-q",
+      prompt,
+      "--yolo",
+      "--max-turns",
+      String(HERMES_MAX_TURNS),
+      "--quiet",
+    ];
+    const child = spawn(HERMES_COMMAND, args, {
+      env: process.env,
+      shell: false,
+      stdio: ["ignore", "pipe", "pipe"],
+    });
+
+    let stdout = "";
+    let stderr = "";
+    child.stdout?.on("data", (chunk: Buffer) => {
+      stdout += chunk.toString();
+    });
+    child.stderr?.on("data", (chunk: Buffer) => {
+      stderr += chunk.toString();
+    });
+
+    child.on("error", (cause) => {
+      const message = cause instanceof Error ? cause.message : String(cause);
+      reject(new Error(`hermes spawn failed: ${message}`));
+    });
+
+    child.on("close", (code) => {
+      if (code === 0) {
+        resolve(stdout);
+        return;
+      }
+      const detail = stderr.trim() !== "" ? ` stderr=${stderr.trim()}` : "";
+      reject(new Error(`hermes exited with code ${code ?? "null"}${detail}`));
+    });
+  });
+}
+
+async function runHermes(ctx: AgentContext): Promise<string> {
+  const fullPrompt = buildHermesPrompt(ctx);
+  return spawnHermesChat(fullPrompt);
+}
+
+/** Agent CLI factory: parses argv, runs Hermes, extracts output, writes StepNode. */
+export function createHermesAgent(): () => Promise<void> {
+  return createAgent({
+    name: "hermes",
+    run: runHermes,
+  });
+}

packages/uwf-agent-hermes/src/index.ts

@@ -0,0 +1 @@
+export { buildHermesPrompt, createHermesAgent } from "./hermes.js";

packages/uwf-agent-hermes/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "dist"
+  },
+  "include": ["src"],
+  "references": [{ "path": "../uwf-agent-kit" }]
+}

packages/uwf-agent-kit/__tests__/resolve-extract-model.test.ts

@@ -0,0 +1,42 @@
+import { describe, expect, test } from "bun:test";
+import type { WorkflowConfig } from "@uncaged/uwf-protocol";
+import { resolveExtractModelAlias } from "../src/extract.js";
+
+function baseConfig(overrides: Partial<WorkflowConfig> = {}): WorkflowConfig {
+  return {
+    providers: {},
+    models: {
+      sonnet: { provider: "openrouter", name: "anthropic/claude-sonnet-4" },
+      "gpt4o-mini": { provider: "openai", name: "gpt-4o-mini" },
+    },
+    agents: {},
+    defaultAgent: "hermes",
+    agentOverrides: null,
+    defaultModel: "sonnet",
+    modelOverrides: null,
+    ...overrides,
+  };
+}
+
+describe("resolveExtractModelAlias", () => {
+  test("uses modelOverrides.extract when set", () => {
+    const config = baseConfig({
+      modelOverrides: { extract: "gpt4o-mini" },
+    });
+    expect(resolveExtractModelAlias(config)).toBe("gpt4o-mini");
+  });
+
+  test("falls back to models.extract alias when present", () => {
+    const config = baseConfig({
+      models: {
+        extract: { provider: "openai", name: "gpt-4o-mini" },
+        sonnet: { provider: "openrouter", name: "anthropic/claude-sonnet-4" },
+      },
+    });
+    expect(resolveExtractModelAlias(config)).toBe("extract");
+  });
+
+  test("falls back to defaultModel", () => {
+    expect(resolveExtractModelAlias(baseConfig())).toBe("sonnet");
+  });
+});

packages/uwf-agent-kit/package.json

@@ -0,0 +1,33 @@
+{
+  "name": "@uncaged/uwf-agent-kit",
+  "version": "0.1.0",
+  "files": [
+    "src",
+    "dist",
+    "package.json"
+  ],
+  "type": "module",
+  "exports": {
+    ".": {
+      "bun": "./src/index.ts",
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
+  "scripts": {
+    "test": "bun test"
+  },
+  "dependencies": {
+    "@uncaged/json-cas": "^0.1.3",
+    "@uncaged/json-cas-fs": "^0.1.2",
+    "@uncaged/uwf-protocol": "workspace:^",
+    "dotenv": "^16.6.1",
+    "yaml": "^2.8.4"
+  },
+  "devDependencies": {
+    "typescript": "^5.8.3"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/uwf-agent-kit/src/context.ts

@@ -0,0 +1,199 @@
+import type {
+  CasRef,
+  StartNodePayload,
+  StepContext,
+  StepNodePayload,
+  ThreadId,
+} from "@uncaged/uwf-protocol";
+import { createAgentStore, loadThreadsIndex, resolveStorageRoot } from "./storage.js";
+import type { AgentContext } from "./types.js";
+
+type ChainState = {
+  startHash: CasRef;
+  start: StartNodePayload;
+  stepsNewestFirst: StepNodePayload[];
+  headIsStart: boolean;
+};
+
+function fail(message: string): never {
+  throw new Error(message);
+}
+
+function walkChain(
+  store: Awaited<ReturnType<typeof createAgentStore>>["store"],
+  schemas: Awaited<ReturnType<typeof createAgentStore>>["schemas"],
+  headHash: CasRef,
+): ChainState {
+  const headNode = store.get(headHash);
+  if (headNode === null) {
+    fail(`CAS node not found: ${headHash}`);
+  }
+
+  if (headNode.type === schemas.startNode) {
+    return {
+      startHash: headHash,
+      start: headNode.payload as StartNodePayload,
+      stepsNewestFirst: [],
+      headIsStart: true,
+    };
+  }
+
+  if (headNode.type !== schemas.stepNode) {
+    fail(`head ${headHash} is not a StartNode or StepNode`);
+  }
+
+  const stepsNewestFirst: StepNodePayload[] = [];
+  let hash: CasRef | null = headHash;
+
+  while (hash !== null) {
+    const node = store.get(hash);
+    if (node === null) {
+      fail(`CAS node not found while walking chain: ${hash}`);
+    }
+    if (node.type !== schemas.stepNode) {
+      break;
+    }
+    const payload = node.payload as StepNodePayload;
+    stepsNewestFirst.push(payload);
+    hash = payload.prev;
+  }
+
+  const newest = stepsNewestFirst[0];
+  if (newest === undefined) {
+    fail(`empty step chain at head ${headHash}`);
+  }
+
+  const startNode = store.get(newest.start);
+  if (startNode === null || startNode.type !== schemas.startNode) {
+    fail(`StartNode not found: ${newest.start}`);
+  }
+
+  return {
+    startHash: newest.start,
+    start: startNode.payload as StartNodePayload,
+    stepsNewestFirst,
+    headIsStart: false,
+  };
+}
+
+function expandOutput(
+  store: Awaited<ReturnType<typeof createAgentStore>>["store"],
+  outputRef: CasRef,
+): unknown {
+  const node = store.get(outputRef);
+  if (node === null) {
+    return {};
+  }
+  return node.payload;
+}
+
+async function buildHistory(
+  store: Awaited<ReturnType<typeof createAgentStore>>["store"],
+  stepsNewestFirst: StepNodePayload[],
+): Promise<StepContext[]> {
+  const chronological = [...stepsNewestFirst].reverse();
+  const history: StepContext[] = [];
+  for (const step of chronological) {
+    history.push({
+      role: step.role,
+      output: expandOutput(store, step.output),
+      detail: step.detail,
+      agent: step.agent,
+    });
+  }
+  return history;
+}
+
+async function loadWorkflow(
+  store: Awaited<ReturnType<typeof createAgentStore>>["store"],
+  schemas: Awaited<ReturnType<typeof createAgentStore>>["schemas"],
+  workflowRef: CasRef,
+) {
+  const node = store.get(workflowRef);
+  if (node === null) {
+    fail(`workflow CAS node not found: ${workflowRef}`);
+  }
+  if (node.type !== schemas.workflow) {
+    fail(`node ${workflowRef} is not a Workflow`);
+  }
+  return node.payload as AgentContext["workflow"];
+}
+
+/**
+ * Build agent execution context from thread head in threads.yaml.
+ * Walks the CAS chain from head to StartNode and expands step outputs.
+ */
+export async function buildContext(threadId: ThreadId, role: string): Promise<AgentContext> {
+  const storageRoot = resolveStorageRoot();
+  const agentStore = await createAgentStore(storageRoot);
+  const { store, schemas } = agentStore;
+
+  const index = await loadThreadsIndex(storageRoot);
+  const headHash = index[threadId];
+  if (headHash === undefined) {
+    fail(`thread not found in threads.yaml: ${threadId}`);
+  }
+
+  const chain = walkChain(store, schemas, headHash);
+  const workflow = await loadWorkflow(store, schemas, chain.start.workflow);
+  const roleDef = workflow.roles[role];
+  if (roleDef === undefined) {
+    fail(`unknown role "${role}" in workflow "${workflow.name}"`);
+  }
+
+  const history = await buildHistory(store, chain.stepsNewestFirst);
+
+  return {
+    threadId,
+    role,
+    systemPrompt: roleDef.systemPrompt,
+    prompt: chain.start.prompt,
+    history,
+    workflow,
+  };
+}
+
+export type BuildContextMeta = {
+  storageRoot: string;
+  store: Awaited<ReturnType<typeof createAgentStore>>["store"];
+  schemas: Awaited<ReturnType<typeof createAgentStore>>["schemas"];
+  headHash: CasRef;
+  chain: ChainState;
+};
+
+/**
+ * Same as {@link buildContext} but also returns chain metadata for writing the next StepNode.
+ */
+export async function buildContextWithMeta(
+  threadId: ThreadId,
+  role: string,
+): Promise<AgentContext & { meta: BuildContextMeta }> {
+  const storageRoot = resolveStorageRoot();
+  const agentStore = await createAgentStore(storageRoot);
+  const { store, schemas } = agentStore;
+
+  const index = await loadThreadsIndex(storageRoot);
+  const headHash = index[threadId];
+  if (headHash === undefined) {
+    fail(`thread not found in threads.yaml: ${threadId}`);
+  }
+
+  const chain = walkChain(store, schemas, headHash);
+  const workflow = await loadWorkflow(store, schemas, chain.start.workflow);
+  const roleDef = workflow.roles[role];
+  if (roleDef === undefined) {
+    fail(`unknown role "${role}" in workflow "${workflow.name}"`);
+  }
+
+  const history = await buildHistory(store, chain.stepsNewestFirst);
+
+  return {
+    threadId,
+    role,
+    systemPrompt: roleDef.systemPrompt,
+    prompt: chain.start.prompt,
+    history,
+    workflow,
+    meta: { storageRoot, store, schemas, headHash, chain },
+  };
+}

packages/uwf-agent-kit/src/extract.ts

@@ -0,0 +1,181 @@
+import { getSchema, validate } from "@uncaged/json-cas";
+
+import type { CasRef, ModelAlias, WorkflowConfig } from "@uncaged/uwf-protocol";
+import { config as loadDotenv } from "dotenv";
+import { createAgentStore, getEnvPath, resolveStorageRoot } from "./storage.js";
+
+export type ResolvedLlmProvider = {
+  baseUrl: string;
+  apiKey: string;
+  model: string;
+};
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+/** Resolve model alias for extract: modelOverrides.extract → models.extract → defaultModel. */
+export function resolveExtractModelAlias(config: WorkflowConfig): ModelAlias {
+  const fromOverride = config.modelOverrides?.extract ?? null;
+  if (fromOverride !== null) {
+    return fromOverride;
+  }
+  if (config.models.extract !== undefined) {
+    return "extract";
+  }
+  if (config.models.default !== undefined) {
+    return "default";
+  }
+  return config.defaultModel;
+}
+
+export function resolveModel(config: WorkflowConfig, alias: ModelAlias): ResolvedLlmProvider {
+  const modelEntry = config.models[alias];
+  if (modelEntry === undefined) {
+    throw new Error(`unknown model alias: ${alias}`);
+  }
+  const providerEntry = config.providers[modelEntry.provider];
+  if (providerEntry === undefined) {
+    throw new Error(`unknown provider "${modelEntry.provider}" for model "${alias}"`);
+  }
+  const apiKey = process.env[providerEntry.apiKeyEnv];
+  if (apiKey === undefined || apiKey === "") {
+    throw new Error(`missing API key env var: ${providerEntry.apiKeyEnv}`);
+  }
+  return {
+    baseUrl: providerEntry.baseUrl,
+    apiKey,
+    model: modelEntry.name,
+  };
+}
+
+function chatUrl(baseUrl: string): string {
+  const trimmed = baseUrl.replace(/\/+$/, "");
+  return `${trimmed}/chat/completions`;
+}
+
+function extractJsonFromAssistantText(text: string): unknown {
+  const trimmed = text.trim();
+  const fenceMatch = /^```(?:json)?\s*([\s\S]*?)```$/m.exec(trimmed);
+  const candidate = fenceMatch !== null ? fenceMatch[1].trim() : trimmed;
+  return JSON.parse(candidate) as unknown;
+}
+
+function parseAssistantText(parsed: unknown): string {
+  if (!isRecord(parsed)) {
+    throw new Error("LLM response is not an object");
+  }
+  const choices = parsed.choices;
+  if (!Array.isArray(choices) || choices.length === 0) {
+    throw new Error("LLM response has no choices");
+  }
+  const c0 = choices[0];
+  if (!isRecord(c0)) {
+    throw new Error("LLM choice is not an object");
+  }
+  const messageObj = c0.message;
+  if (!isRecord(messageObj)) {
+    throw new Error("LLM message is not an object");
+  }
+  const content = messageObj.content;
+  if (typeof content !== "string") {
+    throw new Error("LLM message has no text content");
+  }
+  return content;
+}
+
+async function chatCompletionText(
+  provider: ResolvedLlmProvider,
+  messages: Array<{ role: "system" | "user"; content: string }>,
+): Promise<string> {
+  let response: Response;
+  try {
+    response = await fetch(chatUrl(provider.baseUrl), {
+      method: "POST",
+      headers: {
+        Authorization: `Bearer ${provider.apiKey}`,
+        "Content-Type": "application/json",
+      },
+      body: JSON.stringify({
+        model: provider.model,
+        messages,
+        response_format: { type: "json_object" },
+      }),
+    });
+  } catch (cause) {
+    const message = cause instanceof Error ? cause.message : String(cause);
+    throw new Error(`LLM network error: ${message}`);
+  }
+
+  const responseText = await response.text();
+  if (!response.ok) {
+    throw new Error(`LLM HTTP ${response.status}: ${responseText.slice(0, 2000)}`);
+  }
+
+  let parsed: unknown;
+  try {
+    parsed = JSON.parse(responseText) as unknown;
+  } catch (cause) {
+    const message = cause instanceof Error ? cause.message : String(cause);
+    throw new Error(`LLM invalid JSON response: ${message}`);
+  }
+
+  return parseAssistantText(parsed);
+}
+
+export type ExtractResult = {
+  value: unknown;
+  hash: CasRef;
+};
+
+/**
+ * Call an OpenAI-compatible LLM to extract structured output matching outputSchema.
+ * Loads config.yaml and .env from the workflow storage root.
+ */
+export async function extract(
+  rawOutput: string,
+  outputSchema: CasRef,
+  config: WorkflowConfig,
+): Promise<ExtractResult> {
+  const storageRoot = resolveStorageRoot();
+  loadDotenv({ path: getEnvPath(storageRoot) });
+
+  const { store } = await createAgentStore(storageRoot);
+  const schema = getSchema(store, outputSchema);
+  if (schema === null) {
+    throw new Error(`output schema not found in CAS: ${outputSchema}`);
+  }
+
+  const modelAlias = resolveExtractModelAlias(config);
+  const provider = resolveModel(config, modelAlias);
+
+  const schemaText = JSON.stringify(schema, null, 2);
+  const assistantText = await chatCompletionText(provider, [
+    {
+      role: "system",
+      content:
+        "Extract structured data from the agent output. Reply with a single JSON object only, no markdown or prose. The JSON must validate against this JSON Schema:\n" +
+        schemaText,
+    },
+    {
+      role: "user",
+      content: rawOutput,
+    },
+  ]);
+
+  let structured: unknown;
+  try {
+    structured = extractJsonFromAssistantText(assistantText);
+  } catch (cause) {
+    const message = cause instanceof Error ? cause.message : String(cause);
+    throw new Error(`failed to parse extracted JSON: ${message}`);
+  }
+
+  const outputHash = await store.put(outputSchema, structured);
+  const node = store.get(outputHash);
+  if (node === null || !validate(store, node)) {
+    throw new Error("extracted output failed JSON Schema validation");
+  }
+
+  return { value: structured, hash: outputHash };
+}

packages/uwf-agent-kit/src/index.ts

@@ -0,0 +1,11 @@
+export type { BuildContextMeta } from "./context.js";
+export { buildContext, buildContextWithMeta } from "./context.js";
+export { getConfigPath, getEnvPath, loadWorkflowConfig } from "./storage.js";
+export type { ExtractResult, ResolvedLlmProvider } from "./extract.js";
+export {
+  extract,
+  resolveExtractModelAlias,
+  resolveModel,
+} from "./extract.js";
+export { createAgent } from "./run.js";
+export type { AgentContext, AgentOptions, AgentRunFn } from "./types.js";

packages/uwf-agent-kit/src/run.ts

@@ -0,0 +1,135 @@
+import { validate } from "@uncaged/json-cas";
+import type { CasRef, StepNodePayload, ThreadId } from "@uncaged/uwf-protocol";
+import { config as loadDotenv } from "dotenv";
+
+import { buildContextWithMeta } from "./context.js";
+import { extract } from "./extract.js";
+import type { AgentStore } from "./storage.js";
+import { getEnvPath, loadWorkflowConfig, resolveStorageRoot } from "./storage.js";
+import type { AgentContext, AgentOptions } from "./types.js";
+
+function fail(message: string): never {
+  process.stderr.write(`${message}\n`);
+  process.exit(1);
+}
+
+function agentLabel(name: string): string {
+  if (name.startsWith("uwf-")) {
+    return name;
+  }
+  return `uwf-${name}`;
+}
+
+function parseArgv(argv: string[]): { threadId: ThreadId; role: string } {
+  const threadId = argv[2];
+  const role = argv[3];
+  if (threadId === undefined || threadId === "") {
+    fail("usage: <agent-cli> <thread-id> <role>");
+  }
+  if (role === undefined || role === "") {
+    fail("usage: <agent-cli> <thread-id> <role>");
+  }
+  return { threadId: threadId as ThreadId, role };
+}
+
+function runWithMessage<T>(label: string, fn: () => Promise<T>): Promise<T> {
+  return fn().catch((e: unknown) => {
+    const message = e instanceof Error ? e.message : String(e);
+    fail(`${label}: ${message}`);
+  });
+}
+
+async function writeStepNode(options: {
+  store: AgentStore["store"];
+  schemas: AgentStore["schemas"];
+  startHash: CasRef;
+  prevHash: CasRef | null;
+  role: string;
+  outputHash: CasRef;
+  detailHash: CasRef;
+  agentName: string;
+}): Promise<CasRef> {
+  const payload: StepNodePayload = {
+    start: options.startHash,
+    prev: options.prevHash,
+    role: options.role,
+    output: options.outputHash,
+    detail: options.detailHash,
+    agent: options.agentName,
+  };
+  const hash = await options.store.put(options.schemas.stepNode, payload);
+  const node = options.store.get(hash);
+  if (node === null || !validate(options.store, node)) {
+    fail("stored StepNode failed schema validation");
+  }
+  return hash;
+}
+
+async function runAgent(options: AgentOptions, ctx: AgentContext): Promise<string> {
+  return runWithMessage("agent run failed", () => options.run(ctx));
+}
+
+async function extractOutput(
+  rawOutput: string,
+  outputSchema: CasRef,
+  storageRoot: string,
+): Promise<CasRef> {
+  const config = await runWithMessage("failed to load config", () =>
+    loadWorkflowConfig(storageRoot),
+  );
+  const extracted = await runWithMessage("extract failed", () =>
+    extract(rawOutput, outputSchema, config),
+  );
+  return extracted.hash;
+}
+
+async function persistStep(options: {
+  ctx: Awaited<ReturnType<typeof buildContextWithMeta>>;
+  rawOutput: string;
+  outputHash: CasRef;
+  agentName: string;
+}): Promise<CasRef> {
+  const { store, schemas, chain, headHash } = options.ctx.meta;
+  const detailHash = await store.put(null, options.rawOutput);
+  return writeStepNode({
+    store,
+    schemas,
+    startHash: chain.startHash,
+    prevHash: chain.headIsStart ? null : headHash,
+    role: options.ctx.role,
+    outputHash: options.outputHash,
+    detailHash,
+    agentName: options.agentName,
+  });
+}
+
+/**
+ * Create an agent CLI entrypoint.
+ * Parses argv (`<thread-id> <role>`), runs the agent, extracts structured output,
+ * writes StepNode to CAS, and prints the new node hash to stdout.
+ */
+export function createAgent(options: AgentOptions): () => Promise<void> {
+  return async function main(): Promise<void> {
+    const { threadId, role } = parseArgv(process.argv);
+    const storageRoot = resolveStorageRoot();
+    loadDotenv({ path: getEnvPath(storageRoot) });
+
+    const ctx = await runWithMessage("context", () => buildContextWithMeta(threadId, role));
+
+    const roleDef = ctx.workflow.roles[role];
+    if (roleDef === undefined) {
+      fail(`unknown role: ${role}`);
+    }
+
+    const rawOutput = await runAgent(options, ctx);
+    const outputHash = await extractOutput(rawOutput, roleDef.outputSchema, storageRoot);
+    const stepHash = await persistStep({
+      ctx,
+      rawOutput,
+      outputHash,
+      agentName: agentLabel(options.name),
+    });
+
+    process.stdout.write(`${stepHash}\n`);
+  };
+}

packages/uwf-agent-kit/src/schemas.ts

@@ -0,0 +1,26 @@
+import type { Hash, Store } from "@uncaged/json-cas";
+import { putSchema } from "@uncaged/json-cas";
+import {
+  START_NODE_SCHEMA,
+  STEP_NODE_SCHEMA,
+  WORKFLOW_SCHEMA,
+} from "@uncaged/uwf-protocol";
+
+export type UwfAgentSchemaHashes = {
+  workflow: Hash;
+  startNode: Hash;
+  stepNode: Hash;
+};
+
+/**
+ * Register Workflow, StartNode, and StepNode JSON Schemas in the CAS store.
+ * Idempotent: safe to call on every agent invocation.
+ */
+export async function registerAgentSchemas(store: Store): Promise<UwfAgentSchemaHashes> {
+  const [workflow, startNode, stepNode] = await Promise.all([
+    putSchema(store, WORKFLOW_SCHEMA),
+    putSchema(store, START_NODE_SCHEMA),
+    putSchema(store, STEP_NODE_SCHEMA),
+  ]);
+  return { workflow, startNode, stepNode };
+}

packages/uwf-agent-kit/src/storage.ts

@@ -0,0 +1,227 @@
+import { readFile } from "node:fs/promises";
+import { homedir } from "node:os";
+import { join } from "node:path";
+
+import type { Store } from "@uncaged/json-cas";
+import { createFsStore } from "@uncaged/json-cas-fs";
+import type {
+  AgentAlias,
+  AgentConfig,
+  ModelAlias,
+  ModelConfig,
+  ProviderAlias,
+  ProviderConfig,
+  Scenario,
+  ThreadId,
+  ThreadsIndex,
+  WorkflowConfig,
+  WorkflowName,
+} from "@uncaged/uwf-protocol";
+import { parse } from "yaml";
+
+import { registerAgentSchemas } from "./schemas.js";
+
+/** Default filesystem root for uwf data (`~/.uncaged/workflow`). */
+export function getDefaultStorageRoot(): string {
+  return join(homedir(), ".uncaged", "workflow");
+}
+
+/**
+ * Resolve storage root.
+ * Priority: `UNCAGED_WORKFLOW_STORAGE_ROOT` → `WORKFLOW_STORAGE_ROOT` → default.
+ */
+export function resolveStorageRoot(): string {
+  const internal = process.env.UNCAGED_WORKFLOW_STORAGE_ROOT;
+  if (internal !== undefined && internal !== "") {
+    return internal;
+  }
+  const userOverride = process.env.WORKFLOW_STORAGE_ROOT;
+  if (userOverride !== undefined && userOverride !== "") {
+    return userOverride;
+  }
+  return getDefaultStorageRoot();
+}
+
+export function getCasDir(storageRoot: string): string {
+  return join(storageRoot, "cas");
+}
+
+export function getConfigPath(storageRoot: string): string {
+  return join(storageRoot, "config.yaml");
+}
+
+export function getEnvPath(storageRoot: string): string {
+  return join(storageRoot, ".env");
+}
+
+export function getThreadsPath(storageRoot: string): string {
+  return join(storageRoot, "threads.yaml");
+}
+
+export type AgentStore = {
+  storageRoot: string;
+  store: Store;
+  schemas: Awaited<ReturnType<typeof registerAgentSchemas>>;
+};
+
+export async function createAgentStore(storageRoot: string): Promise<AgentStore> {
+  const store = createFsStore(getCasDir(storageRoot));
+  const schemas = await registerAgentSchemas(store);
+  return { storageRoot, store, schemas };
+}
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+function normalizeProviders(raw: unknown): Record<ProviderAlias, ProviderConfig> {
+  if (!isRecord(raw)) {
+    throw new Error("config.providers must be a mapping");
+  }
+  const providers: Record<ProviderAlias, ProviderConfig> = {};
+  for (const [name, entry] of Object.entries(raw)) {
+    if (!isRecord(entry)) {
+      throw new Error(`config.providers.${name} must be a mapping`);
+    }
+    const baseUrl = entry.baseUrl;
+    const apiKeyEnv = entry.apiKeyEnv;
+    if (typeof baseUrl !== "string" || typeof apiKeyEnv !== "string") {
+      throw new Error(`config.providers.${name} requires baseUrl and apiKeyEnv`);
+    }
+    providers[name] = { baseUrl, apiKeyEnv };
+  }
+  return providers;
+}
+
+function normalizeModels(raw: unknown): Record<ModelAlias, ModelConfig> {
+  if (!isRecord(raw)) {
+    throw new Error("config.models must be a mapping");
+  }
+  const models: Record<ModelAlias, ModelConfig> = {};
+  for (const [name, entry] of Object.entries(raw)) {
+    if (!isRecord(entry)) {
+      throw new Error(`config.models.${name} must be a mapping`);
+    }
+    const provider = entry.provider;
+    const modelName = entry.name;
+    if (typeof provider !== "string" || typeof modelName !== "string") {
+      throw new Error(`config.models.${name} requires provider and name`);
+    }
+    models[name] = { provider, name: modelName };
+  }
+  return models;
+}
+
+function normalizeAgents(raw: unknown): Record<AgentAlias, AgentConfig> {
+  if (!isRecord(raw)) {
+    throw new Error("config.agents must be a mapping");
+  }
+  const agents: Record<AgentAlias, AgentConfig> = {};
+  for (const [name, entry] of Object.entries(raw)) {
+    if (!isRecord(entry)) {
+      throw new Error(`config.agents.${name} must be a mapping`);
+    }
+    const command = entry.command;
+    const argsRaw = entry.args;
+    if (typeof command !== "string") {
+      throw new Error(`config.agents.${name} requires command`);
+    }
+    const args = Array.isArray(argsRaw)
+      ? argsRaw.filter((a): a is string => typeof a === "string")
+      : [];
+    agents[name] = { command, args };
+  }
+  return agents;
+}
+
+function normalizeModelOverrides(raw: unknown): Record<Scenario, ModelAlias> | null {
+  if (raw === undefined || raw === null) {
+    return null;
+  }
+  if (!isRecord(raw)) {
+    throw new Error("config.modelOverrides must be a mapping or null");
+  }
+  const overrides: Record<Scenario, ModelAlias> = {};
+  for (const [scene, alias] of Object.entries(raw)) {
+    if (typeof alias === "string") {
+      overrides[scene] = alias;
+    }
+  }
+  return overrides;
+}
+
+function normalizeAgentOverrides(
+  raw: unknown,
+): Record<WorkflowName, Record<string, AgentAlias>> | null {
+  if (raw === undefined || raw === null) {
+    return null;
+  }
+  if (!isRecord(raw)) {
+    throw new Error("config.agentOverrides must be a mapping or null");
+  }
+  const overrides: Record<WorkflowName, Record<string, AgentAlias>> = {};
+  for (const [workflowName, rolesRaw] of Object.entries(raw)) {
+    if (!isRecord(rolesRaw)) {
+      continue;
+    }
+    const roles: Record<string, AgentAlias> = {};
+    for (const [roleName, alias] of Object.entries(rolesRaw)) {
+      if (typeof alias === "string") {
+        roles[roleName] = alias;
+      }
+    }
+    overrides[workflowName] = roles;
+  }
+  return overrides;
+}
+
+export function normalizeWorkflowConfig(raw: unknown): WorkflowConfig {
+  if (!isRecord(raw)) {
+    throw new Error("config.yaml root must be a mapping");
+  }
+  const defaultAgent = raw.defaultAgent;
+  const defaultModel = raw.defaultModel;
+  if (typeof defaultAgent !== "string" || typeof defaultModel !== "string") {
+    throw new Error("config requires defaultAgent and defaultModel");
+  }
+  return {
+    providers: normalizeProviders(raw.providers),
+    models: normalizeModels(raw.models),
+    agents: normalizeAgents(raw.agents),
+    defaultAgent,
+    agentOverrides: normalizeAgentOverrides(raw.agentOverrides),
+    defaultModel,
+    modelOverrides: normalizeModelOverrides(raw.modelOverrides),
+  };
+}
+
+export async function loadWorkflowConfig(storageRoot: string): Promise<WorkflowConfig> {
+  const path = getConfigPath(storageRoot);
+  const text = await readFile(path, "utf8");
+  const raw = parse(text) as unknown;
+  return normalizeWorkflowConfig(raw);
+}
+
+export async function loadThreadsIndex(storageRoot: string): Promise<ThreadsIndex> {
+  const path = getThreadsPath(storageRoot);
+  try {
+    const text = await readFile(path, "utf8");
+    const raw = parse(text) as unknown;
+    if (!isRecord(raw)) {
+      return {};
+    }
+    const index: ThreadsIndex = {};
+    for (const [threadId, head] of Object.entries(raw)) {
+      if (typeof head === "string") {
+        index[threadId as ThreadId] = head;
+      }
+    }
+    return index;
+  } catch (e) {
+    const err = e as NodeJS.ErrnoException;
+    if (err.code === "ENOENT") {
+      return {};
+    }
+    throw e;
+  }
+}

packages/uwf-agent-kit/src/types.ts

@@ -0,0 +1,17 @@
+import type { StepContext, ThreadId, WorkflowPayload } from "@uncaged/uwf-protocol";
+
+export type AgentContext = {
+  threadId: ThreadId;
+  role: string;
+  systemPrompt: string;
+  prompt: string;
+  history: StepContext[];
+  workflow: WorkflowPayload;
+};
+
+export type AgentRunFn = (ctx: AgentContext) => Promise<string>;
+
+export type AgentOptions = {
+  name: string;
+  run: AgentRunFn;
+};

packages/uwf-agent-kit/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "dist"
+  },
+  "include": ["src"],
+  "references": [{ "path": "../uwf-protocol" }]
+}

packages/uwf-moderator/__tests__/evaluate.test.ts

@@ -0,0 +1,120 @@
+import { describe, expect, test } from "bun:test";
+import type { ModeratorContext, WorkflowPayload } from "@uncaged/uwf-protocol";
+
+import { evaluate } from "../src/evaluate.js";
+
+const solveIssueWorkflow: WorkflowPayload = {
+  name: "solve-issue",
+  description: "End-to-end issue resolution",
+  roles: {
+    planner: {
+      description: "Creates implementation plan",
+      systemPrompt: "You are a planning agent...",
+      outputSchema: "5GWKR8TN1V3JA",
+    },
+    developer: {
+      description: "Implements code changes",
+      systemPrompt: "You are a developer agent...",
+      outputSchema: "8CNWT4KR6D1HV",
+    },
+    reviewer: {
+      description: "Reviews code changes",
+      systemPrompt: "You are a code reviewer...",
+      outputSchema: "1VPBG9SM5E7WK",
+    },
+  },
+  conditions: {
+    needsClarification: {
+      description: "Planner requests clarification from user",
+      expression: "$exists(steps[-1].output.needsClarification)",
+    },
+    notApproved: {
+      description: "Reviewer rejected the implementation",
+      expression: "steps[-1].output.approved = false",
+    },
+  },
+  graph: {
+    $START: [{ role: "planner", condition: null }],
+    planner: [
+      { role: "developer", condition: "needsClarification" },
+      { role: "$END", condition: null },
+    ],
+    developer: [{ role: "reviewer", condition: null }],
+    reviewer: [
+      { role: "developer", condition: "notApproved" },
+      { role: "$END", condition: null },
+    ],
+  },
+};
+
+function makeContext(steps: ModeratorContext["steps"]): ModeratorContext {
+  return {
+    start: {
+      workflow: "4KNM2PXR3B1QW",
+      prompt: "Fix the login bug",
+    },
+    steps,
+  };
+}
+
+describe("evaluate", () => {
+  test("$START → first role (fallback)", async () => {
+    const result = await evaluate(solveIssueWorkflow, makeContext([]));
+    expect(result).toEqual({ ok: true, value: "planner" });
+  });
+
+  test("condition match (notApproved → developer)", async () => {
+    const context = makeContext([
+      {
+        role: "reviewer",
+        output: { approved: false },
+        detail: "2MXBG6PN4A8JR",
+        agent: "uwf-hermes",
+      },
+    ]);
+    const result = await evaluate(solveIssueWorkflow, context);
+    expect(result).toEqual({ ok: true, value: "developer" });
+  });
+
+  test("fallback when condition does not match → $END", async () => {
+    const context = makeContext([
+      {
+        role: "reviewer",
+        output: { approved: true },
+        detail: "2MXBG6PN4A8JR",
+        agent: "uwf-hermes",
+      },
+    ]);
+    const result = await evaluate(solveIssueWorkflow, context);
+    expect(result).toEqual({ ok: true, value: "$END" });
+  });
+
+  test("missing role in graph → error", async () => {
+    const context = makeContext([
+      {
+        role: "unknown-role",
+        output: {},
+        detail: "2MXBG6PN4A8JR",
+        agent: "uwf-hermes",
+      },
+    ]);
+    const result = await evaluate(solveIssueWorkflow, context);
+    expect(result.ok).toBe(false);
+    if (!result.ok) {
+      expect(result.error.message).toBe('no transitions defined for role "unknown-role"');
+    }
+  });
+
+  test("output expansion in context works with JSONata", async () => {
+    const context = makeContext([
+      {
+        role: "planner",
+        output: { needsClarification: true },
+        detail: "7BQST3VW9F2MA",
+        agent: "uwf-hermes",
+      },
+    ]);
+    const result = await evaluate(solveIssueWorkflow, context);
+    expect(result).toEqual({ ok: true, value: "developer" });
+  });
+});

packages/uwf-moderator/package.json

@@ -0,0 +1,30 @@
+{
+  "name": "@uncaged/uwf-moderator",
+  "version": "0.1.0",
+  "files": [
+    "src",
+    "dist",
+    "package.json"
+  ],
+  "type": "module",
+  "exports": {
+    ".": {
+      "bun": "./src/index.ts",
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
+  "scripts": {
+    "test": "bun test"
+  },
+  "dependencies": {
+    "@uncaged/uwf-protocol": "workspace:^",
+    "jsonata": "^1.8.7"
+  },
+  "devDependencies": {
+    "typescript": "^5.8.3"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/uwf-moderator/src/evaluate.ts

@@ -0,0 +1,82 @@
+import type { ModeratorContext, WorkflowPayload } from "@uncaged/uwf-protocol";
+import jsonata from "jsonata";
+
+import type { Result } from "./types.js";
+
+const START_ROLE = "$START";
+
+function isTruthy(value: unknown): boolean {
+  if (value === null || value === undefined) {
+    return false;
+  }
+  if (typeof value === "boolean") {
+    return value;
+  }
+  if (typeof value === "number") {
+    return value !== 0 && !Number.isNaN(value);
+  }
+  if (typeof value === "string") {
+    return value.length > 0;
+  }
+  return true;
+}
+
+async function evaluateJsonata(expression: string, context: ModeratorContext): Promise<Result<unknown, Error>> {
+  try {
+    const result = await jsonata(expression).evaluate(context);
+    return { ok: true, value: result };
+  } catch (error) {
+    return {
+      ok: false,
+      error: error instanceof Error ? error : new Error(String(error)),
+    };
+  }
+}
+
+function currentRole(context: ModeratorContext): string {
+  if (context.steps.length === 0) {
+    return START_ROLE;
+  }
+  return context.steps[context.steps.length - 1].role;
+}
+
+export async function evaluate(
+  workflow: WorkflowPayload,
+  context: ModeratorContext,
+): Promise<Result<string, Error>> {
+  const role = currentRole(context);
+  const transitions = workflow.graph[role];
+  if (transitions === undefined) {
+    return {
+      ok: false,
+      error: new Error(`no transitions defined for role "${role}"`),
+    };
+  }
+
+  for (const transition of transitions) {
+    if (transition.condition === null) {
+      return { ok: true, value: transition.role };
+    }
+
+    const conditionDef = workflow.conditions[transition.condition];
+    if (conditionDef === undefined) {
+      return {
+        ok: false,
+        error: new Error(`unknown condition "${transition.condition}"`),
+      };
+    }
+
+    const evalResult = await evaluateJsonata(conditionDef.expression, context);
+    if (!evalResult.ok) {
+      return evalResult;
+    }
+    if (isTruthy(evalResult.value)) {
+      return { ok: true, value: transition.role };
+    }
+  }
+
+  return {
+    ok: false,
+    error: new Error(`no transition matched for role "${role}"`),
+  };
+}

packages/uwf-moderator/src/index.ts

@@ -0,0 +1 @@
+export { evaluate } from "./evaluate.js";

packages/uwf-moderator/src/types.ts

@@ -0,0 +1 @@
+export type Result<T, E> = { ok: true; value: T } | { ok: false; error: E };

packages/uwf-moderator/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "dist"
+  },
+  "include": ["src"],
+  "references": [{ "path": "../uwf-protocol" }]
+}

packages/uwf-protocol/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "@uncaged/uwf-protocol",
+  "version": "0.1.0",
+  "files": [
+    "src",
+    "dist",
+    "package.json"
+  ],
+  "type": "module",
+  "exports": {
+    ".": {
+      "bun": "./src/index.ts",
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
+  "dependencies": {
+"@uncaged/json-cas-fs": "^0.1.3"
+  },
+  "devDependencies": {
+    "typescript": "^5.8.3"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/uwf-protocol/src/index.ts

@@ -0,0 +1,32 @@
+export {
+  START_NODE_SCHEMA,
+  STEP_NODE_SCHEMA,
+  WORKFLOW_SCHEMA,
+} from "./schemas.js";
+export type {
+  AgentAlias,
+  AgentConfig,
+  CasRef,
+  ConditionDefinition,
+  ModelAlias,
+  ModelConfig,
+  ModeratorContext,
+  ProviderAlias,
+  ProviderConfig,
+  RoleDefinition,
+  RoleName,
+  Scenario,
+  StartNodePayload,
+  StartOutput,
+  StepContext,
+  StepNodePayload,
+  StepOutput,
+  StepRecord,
+  ThreadId,
+  ThreadListItem,
+  ThreadsIndex,
+  Transition,
+  WorkflowConfig,
+  WorkflowName,
+  WorkflowPayload,
+} from "./types.js";

packages/uwf-protocol/src/schemas.ts

@@ -0,0 +1,86 @@
+import type { JSONSchema } from "@uncaged/json-cas";
+
+const ROLE_DEFINITION: JSONSchema = {
+  type: "object",
+  required: ["description", "systemPrompt", "outputSchema"],
+  properties: {
+    description: { type: "string" },
+    systemPrompt: { type: "string" },
+    outputSchema: { type: "string", format: "cas_ref" },
+  },
+  additionalProperties: false,
+};
+
+const CONDITION_DEFINITION: JSONSchema = {
+  type: "object",
+  required: ["description", "expression"],
+  properties: {
+    description: { type: "string" },
+    expression: { type: "string" },
+  },
+  additionalProperties: false,
+};
+
+const TRANSITION: JSONSchema = {
+  type: "object",
+  required: ["role", "condition"],
+  properties: {
+    role: { type: "string" },
+    condition: { anyOf: [{ type: "string" }, { type: "null" }] },
+  },
+  additionalProperties: false,
+};
+
+export const WORKFLOW_SCHEMA: JSONSchema = {
+  title: "Workflow",
+  type: "object",
+  required: ["name", "description", "roles", "conditions", "graph"],
+  properties: {
+    name: { type: "string" },
+    description: { type: "string" },
+    roles: {
+      type: "object",
+      additionalProperties: ROLE_DEFINITION,
+    },
+    conditions: {
+      type: "object",
+      additionalProperties: CONDITION_DEFINITION,
+    },
+    graph: {
+      type: "object",
+      additionalProperties: {
+        type: "array",
+        items: TRANSITION,
+      },
+    },
+  },
+  additionalProperties: false,
+};
+
+export const START_NODE_SCHEMA: JSONSchema = {
+  title: "StartNode",
+  type: "object",
+  required: ["workflow", "prompt"],
+  properties: {
+    workflow: { type: "string", format: "cas_ref" },
+    prompt: { type: "string" },
+  },
+  additionalProperties: false,
+};
+
+export const STEP_NODE_SCHEMA: JSONSchema = {
+  title: "StepNode",
+  type: "object",
+  required: ["start", "prev", "role", "output", "detail", "agent"],
+  properties: {
+    start: { type: "string", format: "cas_ref" },
+    prev: {
+      anyOf: [{ type: "string", format: "cas_ref" }, { type: "null" }],
+    },
+    role: { type: "string" },
+    output: { type: "string", format: "cas_ref" },
+    detail: { type: "string", format: "cas_ref" },
+    agent: { type: "string" },
+  },
+  additionalProperties: false,
+};

packages/uwf-protocol/src/types.ts

@@ -0,0 +1,127 @@
+// ── 4.1 公共类型 ────────────────────────────────────────────────────
+
+/** CAS hash — XXH64, 13-char Crockford Base32 */
+export type CasRef = string;
+
+/** Thread ID — ULID, 26-char Crockford Base32 */
+export type ThreadId = string;
+
+/** 一个 step 的核心数据，被 StepNode payload 和 JSONata 上下文共享 */
+export type StepRecord = {
+  role: string;
+  output: CasRef;
+  detail: CasRef;
+  agent: string;
+};
+
+// ── 4.2 Workflow 定义 ───────────────────────────────────────────────
+
+export type RoleDefinition = {
+  description: string;
+  systemPrompt: string;
+  outputSchema: CasRef;
+};
+
+export type Transition = {
+  role: string;
+  condition: string | null;
+};
+
+export type ConditionDefinition = {
+  description: string;
+  expression: string;
+};
+
+export type WorkflowPayload = {
+  name: string;
+  description: string;
+  roles: Record<string, RoleDefinition>;
+  conditions: Record<string, ConditionDefinition>;
+  graph: Record<string, Transition[]>;
+};
+
+// ── 4.3 Thread 节点 ─────────────────────────────────────────────────
+
+export type StartNodePayload = {
+  workflow: CasRef;
+  prompt: string;
+};
+
+export type StepNodePayload = StepRecord & {
+  start: CasRef;
+  prev: CasRef | null;
+};
+
+// ── 4.4 JSONata 求值上下文 ──────────────────────────────────────────
+
+/** JSONata 上下文中的 step — output 被展开 */
+export type StepContext = Omit<StepRecord, "output"> & {
+  output: unknown;
+};
+
+export type ModeratorContext = {
+  start: StartNodePayload;
+  steps: StepContext[];
+};
+
+// ── 4.5 CLI 输出 ────────────────────────────────────────────────────
+
+/** uwf thread start */
+export type StartOutput = {
+  workflow: CasRef;
+  thread: ThreadId;
+};
+
+/** uwf thread step / uwf thread show */
+export type StepOutput = {
+  workflow: CasRef;
+  thread: ThreadId;
+  head: CasRef;
+  done: boolean;
+};
+
+/** uwf thread list */
+export type ThreadListItem = {
+  thread: ThreadId;
+  workflow: CasRef;
+  head: CasRef;
+};
+
+// ── 4.6 配置 ────────────────────────────────────────────────────────
+
+/** Alias types for config references */
+export type AgentAlias = string;
+export type ModelAlias = string;
+export type ProviderAlias = string;
+export type WorkflowName = string;
+export type RoleName = string;
+export type Scenario = string;
+
+export type ProviderConfig = {
+  baseUrl: string;
+  apiKeyEnv: string;
+};
+
+export type ModelConfig = {
+  provider: ProviderAlias;
+  name: string;
+};
+
+export type AgentConfig = {
+  command: string;
+  args: string[];
+};
+
+/** ~/.uncaged/workflow/config.yaml */
+export type WorkflowConfig = {
+  providers: Record<ProviderAlias, ProviderConfig>;
+  models: Record<ModelAlias, ModelConfig>;
+  agents: Record<AgentAlias, AgentConfig>;
+  defaultAgent: AgentAlias;
+  agentOverrides: Record<WorkflowName, Record<RoleName, AgentAlias>> | null;
+  defaultModel: ModelAlias;
+  modelOverrides: Record<Scenario, ModelAlias> | null;
+};
+
+/** ~/.uncaged/workflow/threads.yaml */
+export type ThreadsIndex = Record<ThreadId, CasRef>;

packages/uwf-protocol/tsconfig.json

@@ -0,0 +1,8 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "dist"
+  },
+  "include": ["src"]
+}

packages/workflow-agent-cursor/src/index.ts

@@ -12,6 +12,7 @@ import type { CursorAgentConfig } from "./types.js";
 import { validateCursorAgentConfig } from "./validate-config.js";
 
 export type { CursorAgentConfig } from "./types.js";
+export { validateCursorAgentConfig } from "./validate-config.js";
 
 function throwCursorSpawnError(error: SpawnCliError): never {
   if (error.kind === "non_zero_exit") {

packages/workflow-agent-docx-diff/__tests__/agent.test.ts

@@ -0,0 +1,22 @@
+import { describe, expect, test } from "bun:test";
+import { packageDescriptor } from "../src/package-descriptor.js";
+import { createDocxDiffAgent } from "../src/agent.js";
+
+describe("createDocxDiffAgent", () => {
+  test("returns an AdapterFn (function)", () => {
+    const agent = createDocxDiffAgent({ command: null });
+    expect(typeof agent).toBe("function");
+  });
+
+  test("AdapterFn returns a RoleFn (function)", () => {
+    const agent = createDocxDiffAgent({ command: null });
+    const roleFn = agent("", expect.anything() as never);
+    expect(typeof roleFn).toBe("function");
+  });
+});
+
+describe("packageDescriptor", () => {
+  test("has correct name", () => {
+    expect(packageDescriptor.name).toBe("@uncaged/workflow-agent-docx-diff");
+  });
+});

packages/workflow-agent-docx-diff/__tests__/runner.test.ts

@@ -0,0 +1,113 @@
+import { mkdirSync, writeFileSync } from "node:fs";
+import { join } from "node:path";
+import { tmpdir } from "node:os";
+import { describe, expect, mock, test } from "bun:test";
+import { ok, err } from "@uncaged/workflow-util";
+import type { SpawnCliConfig } from "@uncaged/workflow-util-agent";
+import { runDocxDiff } from "../src/runner.js";
+
+type MockSpawnResult = Awaited<ReturnType<typeof import("@uncaged/workflow-util-agent").spawnCli>>;
+
+function makeSpawn(result: MockSpawnResult) {
+  return mock(async (_cmd: string, _args: string[], _opts: SpawnCliConfig) => result);
+}
+
+function tempDir(): string {
+  const dir = join(tmpdir(), `diff-test-${Date.now()}`);
+  mkdirSync(dir, { recursive: true });
+  return dir;
+}
+
+describe("runDocxDiff", () => {
+  test("exit 0: success, returns DifferMeta JSON", async () => {
+    const dir = tempDir();
+    const sourceDocx = join(dir, "original.docx");
+    const modifiedDocx = join(dir, "modified.docx");
+    const diffDocx = join(dir, "diff.docx");
+    writeFileSync(sourceDocx, "");
+    writeFileSync(modifiedDocx, "");
+
+    const spawnFn = makeSpawn(ok("") as MockSpawnResult);
+    // simulate docx-diff creating the diff file
+    writeFileSync(diffDocx, "");
+
+    const raw = await runDocxDiff(
+      { command: "docx-diff" },
+      sourceDocx,
+      modifiedDocx,
+      diffDocx,
+      spawnFn,
+    );
+    const meta = JSON.parse(raw);
+    expect(meta.sourceDocx).toBe(sourceDocx);
+    expect(meta.modifiedDocx).toBe(modifiedDocx);
+    expect(meta.diffDocx).toBe(diffDocx);
+
+    expect(spawnFn.mock.calls[0][1]).toEqual([
+      sourceDocx,
+      modifiedDocx,
+      "--output",
+      "docx",
+      "--out-file",
+      diffDocx,
+    ]);
+  });
+
+  test("exit 1 (changes found): treated as success", async () => {
+    const dir = tempDir();
+    const sourceDocx = join(dir, "s.docx");
+    const modifiedDocx = join(dir, "m.docx");
+    const diffDocx = join(dir, "diff.docx");
+    writeFileSync(sourceDocx, "");
+    writeFileSync(modifiedDocx, "");
+    writeFileSync(diffDocx, "");
+
+    const spawnFn = makeSpawn(
+      err({ kind: "non_zero_exit", exitCode: 1, stdout: "", stderr: "" }) as MockSpawnResult,
+    );
+
+    await expect(
+      runDocxDiff({ command: "docx-diff" }, sourceDocx, modifiedDocx, diffDocx, spawnFn),
+    ).resolves.toBeDefined();
+  });
+
+  test("exit 2: throws error", async () => {
+    const dir = tempDir();
+    const spawnFn = makeSpawn(
+      err({ kind: "non_zero_exit", exitCode: 2, stdout: "", stderr: "fatal error" }) as MockSpawnResult,
+    );
+
+    await expect(
+      runDocxDiff({ command: null }, "s.docx", "m.docx", "diff.docx", spawnFn),
+    ).rejects.toThrow("docx-diff failed");
+  });
+
+  test("timeout: throws error", async () => {
+    const spawnFn = makeSpawn(err({ kind: "timeout" }) as MockSpawnResult);
+
+    await expect(
+      runDocxDiff({ command: null }, "s.docx", "m.docx", "diff.docx", spawnFn),
+    ).rejects.toThrow("timed out");
+  });
+
+  test("throws when diff file not created", async () => {
+    const dir = tempDir();
+    const spawnFn = makeSpawn(ok("") as MockSpawnResult);
+    // do NOT create diffDocx
+
+    await expect(
+      runDocxDiff({ command: null }, "s.docx", "m.docx", join(dir, "missing.docx"), spawnFn),
+    ).rejects.toThrow("diff file not found");
+  });
+
+  test("uses PATH docx-diff when command is null", async () => {
+    const dir = tempDir();
+    const diffDocx = join(dir, "diff.docx");
+    writeFileSync(diffDocx, "");
+    const spawnFn = makeSpawn(ok("") as MockSpawnResult);
+
+    await runDocxDiff({ command: null }, "s.docx", "m.docx", diffDocx, spawnFn);
+
+    expect(spawnFn.mock.calls[0][0]).toBe("docx-diff");
+  });
+});

packages/workflow-agent-docx-diff/package.json

@@ -0,0 +1,29 @@
+{
+  "name": "@uncaged/workflow-agent-docx-diff",
+  "version": "0.1.0",
+  "files": ["src", "dist", "package.json"],
+  "type": "module",
+  "types": "src/index.ts",
+  "exports": {
+    ".": {
+      "bun": "./src/index.ts",
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
+  "scripts": {
+    "test": "bun test"
+  },
+  "dependencies": {
+    "@uncaged/workflow-runtime": "workspace:^",
+    "@uncaged/workflow-util-agent": "workspace:^",
+    "@uncaged/workflow-template-document": "workspace:^",
+    "zod": "^4.0.0"
+  },
+  "devDependencies": {
+    "@uncaged/workflow-util": "workspace:^"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/workflow-agent-docx-diff/src/agent.ts

@@ -0,0 +1,29 @@
+import * as z from "zod/v4";
+import { dirname, join } from "node:path";
+import type { AdapterFn, RoleResult, ThreadContext, WorkflowRuntime } from "@uncaged/workflow-runtime";
+import type { WriterMeta } from "@uncaged/workflow-template-document";
+import { runDocxDiff } from "./runner.js";
+import type { DocxDiffAgentConfig } from "./types.js";
+
+export function createDocxDiffAgent(config: DocxDiffAgentConfig): AdapterFn {
+  return <T>(_prompt: string, schema: z.ZodType<T>) =>
+    async (ctx: ThreadContext, _runtime: WorkflowRuntime): Promise<RoleResult<T>> => {
+      const writerStep = ctx.steps.find((s) => s.role === "writer");
+      if (writerStep === undefined) throw new Error("differ: no writer step found");
+
+      const writerMeta = writerStep.meta as WriterMeta;
+      if (writerMeta.mode !== "edit")
+        throw new Error("differ: writer did not run in edit mode");
+
+      const diffDocx = join(dirname(writerMeta.outputDocx), "diff.docx");
+      const raw = await runDocxDiff(
+        config,
+        writerMeta.sourceDocx,
+        writerMeta.outputDocx,
+        diffDocx,
+      );
+
+      const meta = schema.parse(JSON.parse(raw)) as T;
+      return { meta, childThread: null };
+    };
+}

packages/workflow-agent-docx-diff/src/index.ts

@@ -0,0 +1,3 @@
+export { createDocxDiffAgent } from "./agent.js";
+export { packageDescriptor } from "./package-descriptor.js";
+export type { DocxDiffAgentConfig } from "./types.js";

packages/workflow-agent-docx-diff/src/package-descriptor.ts

@@ -0,0 +1,17 @@
+import type { PackageDescriptor } from "@uncaged/workflow-runtime";
+
+export const packageDescriptor: PackageDescriptor = {
+  name: "@uncaged/workflow-agent-docx-diff",
+  version: "0.1.0",
+  capabilities: ["docx-diff-cli", "docx-diff-report"],
+  configSchema: {
+    type: "object",
+    properties: {
+      command: {
+        anyOf: [{ type: "string" }, { type: "null" }],
+        description: "Path to docx-diff CLI binary; null uses PATH.",
+      },
+    },
+    additionalProperties: false,
+  },
+};

packages/workflow-agent-docx-diff/src/runner.ts

@@ -0,0 +1,47 @@
+import { stat } from "node:fs/promises";
+import { spawnCli } from "@uncaged/workflow-util-agent";
+import type { SpawnCliError } from "@uncaged/workflow-util-agent";
+import type { DocxDiffAgentConfig } from "./types.js";
+
+type SpawnCliFn = typeof spawnCli;
+
+function throwSpawnError(e: SpawnCliError): never {
+  if (e.kind === "non_zero_exit")
+    throw new Error(`docx-diff failed (exit ${e.exitCode}): ${e.stderr}`);
+  if (e.kind === "timeout")
+    throw new Error("docx-diff: timed out");
+  throw new Error(`docx-diff: spawn failed: ${e.message}`);
+}
+
+export async function runDocxDiff(
+  config: DocxDiffAgentConfig,
+  sourceDocx: string,
+  modifiedDocx: string,
+  diffDocx: string,
+  spawnCliFn: SpawnCliFn = spawnCli,
+): Promise<string> {
+  const command = config.command ?? "docx-diff";
+  const result = await spawnCliFn(
+    command,
+    [sourceDocx, modifiedDocx, "--output", "docx", "--out-file", diffDocx],
+    { cwd: null, timeoutMs: null },
+  );
+
+  if (!result.ok) {
+    const e = result.error;
+    // exit 1 = changes found (normal for docx-diff)
+    if (e.kind === "non_zero_exit" && e.exitCode === 1) {
+      // fall through to file check
+    } else {
+      throwSpawnError(e);
+    }
+  }
+
+  try {
+    await stat(diffDocx);
+  } catch {
+    throw new Error(`docx-diff: diff file not found: ${diffDocx}`);
+  }
+
+  return JSON.stringify({ sourceDocx, modifiedDocx, diffDocx });
+}

packages/workflow-agent-docx-diff/src/types.ts

@@ -0,0 +1,3 @@
+export type DocxDiffAgentConfig = {
+  command: string | null;
+};

packages/workflow-agent-docx-diff/tsconfig.json

@@ -0,0 +1,15 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "dist",
+    "composite": true
+  },
+  "include": ["src/**/*.ts"],
+  "references": [
+    { "path": "../workflow-protocol" },
+    { "path": "../workflow-runtime" },
+    { "path": "../workflow-util-agent" },
+    { "path": "../workflow-template-document" }
+  ]
+}

packages/workflow-agent-hermes/src/index.ts

@@ -14,6 +14,7 @@ const HERMES_DEFAULT_MAX_TURNS = 90;
 type HermesAgentOpt = { prompt: string };
 
 export type { HermesAgentConfig } from "./types.js";
+export { validateHermesAgentConfig } from "./validate-config.js";
 
 function throwHermesSpawnError(error: SpawnCliError): never {
   if (error.kind === "non_zero_exit") {

packages/workflow-agent-office/__tests__/agent.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, test } from "bun:test";
+import { packageDescriptor } from "../src/package-descriptor.js";
+import { createOfficeAgent } from "../src/agent.js";
+
+describe("createOfficeAgent", () => {
+  test("returns an AdapterFn (function)", () => {
+    const agent = createOfficeAgent({ outputDir: "/tmp", command: null, timeout: null });
+    expect(typeof agent).toBe("function");
+  });
+
+  test("AdapterFn returns a RoleFn (function)", () => {
+    const agent = createOfficeAgent({ outputDir: "/tmp", command: null, timeout: null });
+    const roleFn = agent("", expect.anything() as never);
+    expect(typeof roleFn).toBe("function");
+  });
+});
+
+describe("packageDescriptor", () => {
+  test("has correct name", () => {
+    expect(packageDescriptor.name).toBe("@uncaged/workflow-agent-office");
+  });
+
+  test("has outputDir in configSchema required", () => {
+    const schema = packageDescriptor.configSchema as { required: string[] };
+    expect(schema.required).toContain("outputDir");
+  });
+});

packages/workflow-agent-office/__tests__/runner.test.ts

@@ -0,0 +1,129 @@
+import { mkdirSync, writeFileSync } from "node:fs";
+import { join } from "node:path";
+import { tmpdir } from "node:os";
+import { describe, expect, mock, test } from "bun:test";
+import { ok, err } from "@uncaged/workflow-util";
+import type { SpawnCliConfig } from "@uncaged/workflow-util-agent";
+import { editDocument, generateDocument } from "../src/runner.js";
+
+type MockSpawnResult = Awaited<ReturnType<typeof import("@uncaged/workflow-util-agent").spawnCli>>;
+
+function makeSpawn(result: MockSpawnResult) {
+  return mock(async (_cmd: string, _args: string[], _opts: SpawnCliConfig) => result);
+}
+
+function tempDir(): string {
+  const dir = join(tmpdir(), `office-test-${Date.now()}`);
+  mkdirSync(dir, { recursive: true });
+  return dir;
+}
+
+describe("generateDocument", () => {
+  test("calls office-agent create with correct args and returns outputDocx path", async () => {
+    const base = tempDir();
+    const spawnFn = makeSpawn(ok("agent reply") as MockSpawnResult);
+    // Simulate CLI creating the file
+    const outFile = join(base, "thread1", "output.docx");
+    mkdirSync(join(base, "thread1"), { recursive: true });
+    writeFileSync(outFile, "");
+
+    const result = await generateDocument(
+      { outputDir: base, command: "office-agent", timeout: null },
+      "thread1",
+      "Write a report",
+      spawnFn,
+    );
+
+    expect(result.outputDocx).toBe(outFile);
+    expect(result.sourceDocx).toBeNull();
+    expect(spawnFn.mock.calls[0][0]).toBe("office-agent");
+    expect(spawnFn.mock.calls[0][1]).toEqual(["create", "Write a report", "-o", "output.docx"]);
+    expect(spawnFn.mock.calls[0][2].cwd).toBe(join(base, "thread1"));
+  });
+
+  test("uses PATH office-agent when command is null", async () => {
+    const base = tempDir();
+    const spawnFn = makeSpawn(ok("") as MockSpawnResult);
+    mkdirSync(join(base, "t2"), { recursive: true });
+    writeFileSync(join(base, "t2", "output.docx"), "");
+
+    await generateDocument(
+      { outputDir: base, command: null, timeout: null },
+      "t2",
+      "Generate",
+      spawnFn,
+    );
+
+    expect(spawnFn.mock.calls[0][0]).toBe("office-agent");
+  });
+
+  test("throws on non_zero_exit", async () => {
+    const base = tempDir();
+    const spawnFn = makeSpawn(
+      err({ kind: "non_zero_exit", exitCode: 1, stdout: "", stderr: "error" }) as MockSpawnResult,
+    );
+
+    await expect(
+      generateDocument({ outputDir: base, command: null, timeout: null }, "t3", "fail", spawnFn),
+    ).rejects.toThrow("office-agent failed (exit 1)");
+  });
+
+  test("throws on timeout", async () => {
+    const base = tempDir();
+    const spawnFn = makeSpawn(err({ kind: "timeout" }) as MockSpawnResult);
+
+    await expect(
+      generateDocument({ outputDir: base, command: null, timeout: null }, "t4", "slow", spawnFn),
+    ).rejects.toThrow("office-agent: timed out");
+  });
+
+  test("throws when output file not created", async () => {
+    const base = tempDir();
+    const spawnFn = makeSpawn(ok("") as MockSpawnResult);
+    // Do NOT create output.docx
+
+    await expect(
+      generateDocument({ outputDir: base, command: null, timeout: null }, "t5", "no file", spawnFn),
+    ).rejects.toThrow("output file not found");
+  });
+});
+
+describe("editDocument", () => {
+  test("copies input to original.docx and modified.docx, calls edit, returns paths", async () => {
+    const base = tempDir();
+    // Create a fake inputDocx
+    const inputFile = join(base, "source.docx");
+    writeFileSync(inputFile, "original content");
+
+    const spawnFn = makeSpawn(ok("") as MockSpawnResult);
+    // Simulate CLI overwriting modified.docx
+    const outDir = join(base, "te1");
+    mkdirSync(outDir, { recursive: true });
+    writeFileSync(join(outDir, "modified.docx"), "modified content");
+
+    const result = await editDocument(
+      { outputDir: base, command: "office-agent", timeout: null },
+      "te1",
+      "Edit the doc",
+      inputFile,
+      spawnFn,
+    );
+
+    expect(result.outputDocx).toBe(join(outDir, "modified.docx"));
+    expect(result.sourceDocx).toBe(join(outDir, "original.docx"));
+    expect(spawnFn.mock.calls[0][1]).toEqual(["edit", "modified.docx", "Edit the doc"]);
+  });
+
+  test("throws on spawn_failed", async () => {
+    const base = tempDir();
+    const inputFile = join(base, "src.docx");
+    writeFileSync(inputFile, "");
+    const spawnFn = makeSpawn(
+      err({ kind: "spawn_failed", message: "not found" }) as MockSpawnResult,
+    );
+
+    await expect(
+      editDocument({ outputDir: base, command: null, timeout: null }, "te2", "edit", inputFile, spawnFn),
+    ).rejects.toThrow("spawn failed");
+  });
+});

packages/workflow-agent-office/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "@uncaged/workflow-agent-office",
+  "version": "0.1.0",
+  "files": ["src", "dist", "package.json"],
+  "type": "module",
+  "types": "src/index.ts",
+  "exports": {
+    ".": {
+      "bun": "./src/index.ts",
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
+  "scripts": {
+    "test": "bun test"
+  },
+  "dependencies": {
+    "@uncaged/workflow-runtime": "workspace:^",
+    "@uncaged/workflow-util": "workspace:^",
+    "@uncaged/workflow-util-agent": "workspace:^"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

packages/workflow-agent-office/src/agent.ts

@@ -0,0 +1,44 @@
+import * as z from "zod/v4";
+import type { AdapterFn, RoleResult, ThreadContext, WorkflowRuntime } from "@uncaged/workflow-runtime";
+import { createLogger } from "@uncaged/workflow-util";
+import { editDocument, generateDocument } from "./runner.js";
+import type { OfficeAgentConfig } from "./types.js";
+
+const log = createLogger({ sink: { kind: "stderr" } });
+
+type ParsedInput = { prompt: string; inputDocx: string | null };
+
+function parseStartInput(content: string): ParsedInput {
+  try {
+    const parsed = JSON.parse(content) as Record<string, unknown>;
+    if (typeof parsed.prompt === "string") {
+      return {
+        prompt: parsed.prompt,
+        inputDocx: typeof parsed.inputDocx === "string" ? parsed.inputDocx : null,
+      };
+    }
+  } catch {
+    // not JSON — treat whole content as prompt, generate mode
+  }
+  return { prompt: content, inputDocx: null };
+}
+
+export function createOfficeAgent(config: OfficeAgentConfig): AdapterFn {
+  return <T>(_systemPrompt: string, schema: z.ZodType<T>) =>
+    async (ctx: ThreadContext, _runtime: WorkflowRuntime): Promise<RoleResult<T>> => {
+      const { prompt, inputDocx } = parseStartInput(ctx.start.content);
+      log("8FQKP3NV", `office-agent: mode=${inputDocx === null ? "generate" : "edit"} thread=${ctx.threadId}`);
+
+      let raw: string;
+      if (inputDocx === null) {
+        const result = await generateDocument(config, ctx.threadId, prompt);
+        raw = JSON.stringify({ mode: "generate", outputDocx: result.outputDocx, sourceDocx: null });
+      } else {
+        const result = await editDocument(config, ctx.threadId, prompt, inputDocx);
+        raw = JSON.stringify({ mode: "edit", outputDocx: result.outputDocx, sourceDocx: result.sourceDocx });
+      }
+
+      const meta = schema.parse(JSON.parse(raw)) as T;
+      return { meta, childThread: null };
+    };
+}

packages/workflow-agent-office/src/index.ts

@@ -0,0 +1,3 @@
+export { createOfficeAgent } from "./agent.js";
+export { packageDescriptor } from "./package-descriptor.js";
+export type { OfficeAgentConfig } from "./types.js";

packages/workflow-agent-office/src/package-descriptor.ts

@@ -0,0 +1,26 @@
+import type { PackageDescriptor } from "@uncaged/workflow-runtime";
+
+export const packageDescriptor: PackageDescriptor = {
+  name: "@uncaged/workflow-agent-office",
+  version: "0.1.0",
+  capabilities: ["office-agent-cli", "docx-generate", "docx-edit"],
+  configSchema: {
+    type: "object",
+    required: ["outputDir"],
+    properties: {
+      outputDir: {
+        type: "string",
+        description: "Root directory for workflow outputs; subdirs are created per threadId.",
+      },
+      command: {
+        anyOf: [{ type: "string" }, { type: "null" }],
+        description: "Path to office-agent CLI binary; null uses PATH.",
+      },
+      timeout: {
+        anyOf: [{ type: "number" }, { type: "null" }],
+        description: "Timeout in milliseconds; null means no limit.",
+      },
+    },
+    additionalProperties: false,
+  },
+};

packages/workflow-agent-office/src/runner.ts

@@ -0,0 +1,65 @@
+import { copyFile, mkdir, stat } from "node:fs/promises";
+import { join } from "node:path";
+import { spawnCli } from "@uncaged/workflow-util-agent";
+import type { SpawnCliError } from "@uncaged/workflow-util-agent";
+import type { OfficeAgentConfig } from "./types.js";
+
+type SpawnCliFn = typeof spawnCli;
+
+function throwSpawnError(e: SpawnCliError): never {
+  if (e.kind === "non_zero_exit")
+    throw new Error(`office-agent failed (exit ${e.exitCode}): ${e.stderr}`);
+  if (e.kind === "timeout")
+    throw new Error("office-agent: timed out");
+  throw new Error(`office-agent: spawn failed: ${e.message}`);
+}
+
+async function assertFileExists(path: string): Promise<void> {
+  try {
+    await stat(path);
+  } catch {
+    throw new Error(`office-agent: output file not found: ${path}`);
+  }
+}
+
+export async function generateDocument(
+  config: OfficeAgentConfig,
+  threadId: string,
+  prompt: string,
+  spawnCliFn: SpawnCliFn = spawnCli,
+): Promise<{ outputDocx: string; sourceDocx: null }> {
+  const outputDir = join(config.outputDir, threadId);
+  await mkdir(outputDir, { recursive: true });
+  const command = config.command ?? "office-agent";
+  const result = await spawnCliFn(command, ["create", prompt, "-o", "output.docx"], {
+    cwd: outputDir,
+    timeoutMs: config.timeout,
+  });
+  if (!result.ok) throwSpawnError(result.error);
+  const outputDocx = join(outputDir, "output.docx");
+  await assertFileExists(outputDocx);
+  return { outputDocx, sourceDocx: null };
+}
+
+export async function editDocument(
+  config: OfficeAgentConfig,
+  threadId: string,
+  prompt: string,
+  inputDocx: string,
+  spawnCliFn: SpawnCliFn = spawnCli,
+): Promise<{ outputDocx: string; sourceDocx: string }> {
+  const outputDir = join(config.outputDir, threadId);
+  await mkdir(outputDir, { recursive: true });
+  const originalDocx = join(outputDir, "original.docx");
+  const modifiedDocx = join(outputDir, "modified.docx");
+  await copyFile(inputDocx, originalDocx);
+  await copyFile(inputDocx, modifiedDocx);
+  const command = config.command ?? "office-agent";
+  const result = await spawnCliFn(command, ["edit", "modified.docx", prompt], {
+    cwd: outputDir,
+    timeoutMs: config.timeout,
+  });
+  if (!result.ok) throwSpawnError(result.error);
+  await assertFileExists(modifiedDocx);
+  return { outputDocx: modifiedDocx, sourceDocx: originalDocx };
+}

packages/workflow-agent-office/src/types.ts

@@ -0,0 +1,5 @@
+export type OfficeAgentConfig = {
+  outputDir: string;
+  command: string | null;
+  timeout: number | null;
+};

packages/workflow-agent-office/tsconfig.json

@@ -0,0 +1,15 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "dist",
+    "composite": true
+  },
+  "include": ["src/**/*.ts"],
+  "references": [
+    { "path": "../workflow-protocol" },
+    { "path": "../workflow-runtime" },
+    { "path": "../workflow-util" },
+    { "path": "../workflow-util-agent" }
+  ]
+}

packages/workflow-dashboard/index.html

@@ -4,6 +4,14 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Workflow Dashboard</title>
+    <script>
+      (function () {
+        var t = localStorage.getItem("theme");
+        if (t === "dark" || (!t && matchMedia("(prefers-color-scheme: dark)").matches)) {
+          document.documentElement.classList.add("dark");
+        }
+      })();
+    </script>
   </head>
   <body>
     <div id="root"></div>

packages/workflow-dashboard/package.json

@@ -13,11 +13,23 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "@radix-ui/react-collapsible": "^1.1.12",
+    "@radix-ui/react-dialog": "^1.1.15",
+    "@radix-ui/react-scroll-area": "^1.2.10",
+    "@radix-ui/react-select": "^2.2.6",
+    "@radix-ui/react-separator": "^1.1.8",
+    "@radix-ui/react-slot": "^1.2.4",
+    "@radix-ui/react-tooltip": "^1.2.8",
     "@xyflow/react": "^12.10.2",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "lucide-react": "^1.16.0",
     "react": "^19.2.6",
     "react-dom": "^19.2.6",
     "react-markdown": "^10.1.0",
-    "shiki": "^4.0.2"
+    "react-router": "^7.15.1",
+    "shiki": "^4.0.2",
+    "tailwind-merge": "^3.6.0"
   },
   "devDependencies": {
     "@tailwindcss/vite": "^4.2.4",

packages/workflow-dashboard/plugins/vite-limit-line-plugin.ts

@@ -0,0 +1,362 @@
+import { createFilter, type Plugin } from "vite";
+
+type LimitLineOverride = {
+  files: string;
+  maxReactFCLines: number | null;
+  maxFileLines: number | null;
+};
+
+type LimitLineOptions = {
+  maxReactFCLines: number;
+  maxFileLines: number;
+  include: RegExp;
+  exclude: RegExp | null;
+  overrides: Array<LimitLineOverride>;
+};
+
+const DEFAULT_OPTIONS: LimitLineOptions = {
+  maxReactFCLines: 300,
+  maxFileLines: 600,
+  include: /\.[tj]sx$/,
+  exclude: null,
+  overrides: [],
+};
+
+type ResolvedLimits = {
+  maxReactFCLines: number | null;
+  maxFileLines: number | null;
+};
+
+type ComponentInfo = {
+  name: string;
+  startLine: number;
+  lineCount: number;
+};
+
+const PASCAL_CASE = /^[A-Z][A-Za-z0-9]*$/;
+
+// --- AST types (Rolldown ESTree subset) ---
+
+type Identifier = {
+  type: "Identifier";
+  name: string;
+};
+
+type MemberExpression = {
+  type: "MemberExpression";
+  object: AstExpression;
+  property: Identifier;
+};
+
+type CallExpression = {
+  type: "CallExpression";
+  callee: AstExpression;
+  arguments: Array<AstExpression>;
+};
+
+type AstExpression = Identifier | MemberExpression | CallExpression | {
+  type: string;
+  [key: string]: unknown;
+};
+
+type VariableDeclarator = {
+  id: Identifier | null;
+  init: AstExpression | null;
+};
+
+type AstStatement = {
+  type: string;
+  id: Identifier | null;
+  declaration: AstStatement | null;
+  declarations: Array<VariableDeclarator>;
+  body: Array<AstStatement>;
+  [key: string]: unknown;
+};
+
+type AstProgram = {
+  type: "Program";
+  body: Array<AstStatement>;
+};
+
+// --- AST helpers ---
+
+function isFunctionLike(node: AstExpression): boolean {
+  return node.type === "ArrowFunctionExpression" || node.type === "FunctionExpression";
+}
+
+const WRAPPER_NAMES = new Set(["memo", "forwardRef", "lazy"]);
+
+function isWrapperCall(node: AstExpression): boolean {
+  if (node.type !== "CallExpression") return false;
+  const call = node as CallExpression;
+  const callee = call.callee;
+
+  if (callee.type === "Identifier") {
+    return WRAPPER_NAMES.has((callee as Identifier).name);
+  }
+
+  if (callee.type === "MemberExpression") {
+    const member = callee as MemberExpression;
+    return member.property.type === "Identifier" && WRAPPER_NAMES.has(member.property.name);
+  }
+
+  return false;
+}
+
+function extractComponentNames(ast: AstProgram): Array<string> {
+  const names: Array<string> = [];
+
+  for (const node of ast.body) {
+    if (node.type === "FunctionDeclaration" && node.id && PASCAL_CASE.test(node.id.name)) {
+      names.push(node.id.name);
+      continue;
+    }
+
+    if (node.type === "ExportNamedDeclaration" && node.declaration) {
+      const decl = node.declaration;
+      if (decl.type === "FunctionDeclaration" && decl.id && PASCAL_CASE.test(decl.id.name)) {
+        names.push(decl.id.name);
+        continue;
+      }
+      if (decl.type === "VariableDeclaration") {
+        collectNamesFromVarDeclaration(decl, names);
+        continue;
+      }
+    }
+
+    if (node.type === "VariableDeclaration") {
+      collectNamesFromVarDeclaration(node, names);
+    }
+  }
+
+  return names;
+}
+
+function collectNamesFromVarDeclaration(node: AstStatement, names: Array<string>): void {
+  for (const declarator of node.declarations ?? []) {
+    if (!declarator.id || !PASCAL_CASE.test(declarator.id.name) || !declarator.init) continue;
+    const init = declarator.init;
+    if (isFunctionLike(init)) {
+      names.push(declarator.id.name);
+    } else if (isWrapperCall(init)) {
+      const args = (init as CallExpression).arguments;
+      if (args.length > 0 && isFunctionLike(args[0])) {
+        names.push(declarator.id.name);
+      }
+    }
+  }
+}
+
+// --- Source measurement ---
+
+function measureComponentInSource(name: string, lines: Array<string>): ComponentInfo | null {
+  const fnPattern = new RegExp(`^(?:export\\s+)?function\\s+${name}\\s*[(<]`);
+  const varPattern = new RegExp(`^(?:export\\s+)?const\\s+${name}\\s*[=:]`);
+
+  for (let i = 0; i < lines.length; i++) {
+    const trimmed = lines[i].trimStart();
+    const isFnDecl = fnPattern.test(trimmed);
+    const isVarDecl = varPattern.test(trimmed);
+    if (!isFnDecl && !isVarDecl) continue;
+
+    if (isFnDecl) {
+      const result = measureFromParams(i, lines);
+      if (result) return { ...result, name };
+      return null;
+    }
+    const result = measureFromArrow(i, lines);
+    if (result) return { ...result, name };
+    return null;
+  }
+
+  return null;
+}
+
+// function Foo(...) { ... } — skip params via parens, then brace-match the body
+function measureFromParams(startLine: number, lines: Array<string>): ComponentInfo | null {
+  let parenDepth = 0;
+  let pastParams = false;
+  let braceDepth = 0;
+
+  for (let j = startLine; j < lines.length; j++) {
+    for (const ch of lines[j]) {
+      if (!pastParams) {
+        if (ch === "(") parenDepth++;
+        else if (ch === ")") {
+          parenDepth--;
+          if (parenDepth === 0) pastParams = true;
+        }
+      } else {
+        if (ch === "{") braceDepth++;
+        else if (ch === "}") {
+          braceDepth--;
+          if (braceDepth === 0) {
+            return { name: "", startLine: startLine + 1, lineCount: j - startLine + 1 };
+          }
+        }
+      }
+    }
+  }
+
+  return null;
+}
+
+// const Foo = (...) => { ... } / const Foo = memo((...) => { ... })
+// Find `=>` first, then brace-match from there to skip type annotations in params
+function measureFromArrow(startLine: number, lines: Array<string>): ComponentInfo | null {
+  let arrowFound = false;
+  let braceDepth = 0;
+  let foundBrace = false;
+
+  for (let j = startLine; j < lines.length; j++) {
+    const line = lines[j];
+    for (let c = 0; c < line.length; c++) {
+      if (!arrowFound) {
+        if (line[c] === "=" && line[c + 1] === ">") {
+          arrowFound = true;
+          c++;
+        }
+        continue;
+      }
+      if (line[c] === "{") {
+        braceDepth++;
+        foundBrace = true;
+      } else if (line[c] === "}") {
+        braceDepth--;
+        if (foundBrace && braceDepth === 0) {
+          return { name: "", startLine: startLine + 1, lineCount: j - startLine + 1 };
+        }
+      }
+    }
+  }
+
+  return null;
+}
+
+// --- Config resolution ---
+
+function createLimitResolver(options: LimitLineOptions): (id: string) => ResolvedLimits {
+  const matchers = options.overrides.map((override) => ({
+    match: createFilter(override.files),
+    maxReactFCLines: override.maxReactFCLines,
+    maxFileLines: override.maxFileLines,
+  }));
+
+  return (id: string): ResolvedLimits => {
+    let maxReactFCLines: number | null = options.maxReactFCLines;
+    let maxFileLines: number | null = options.maxFileLines;
+
+    for (const matcher of matchers) {
+      if (matcher.match(id)) {
+        maxReactFCLines = matcher.maxReactFCLines;
+        maxFileLines = matcher.maxFileLines;
+      }
+    }
+
+    return { maxReactFCLines, maxFileLines };
+  };
+}
+
+function shouldProcess(id: string, options: LimitLineOptions): boolean {
+  return options.include.test(id) && !id.includes("node_modules") && (options.exclude === null || !options.exclude.test(id));
+}
+
+// --- Plugin ---
+
+function viteLimitLinePlugin(
+  userOptions: Partial<LimitLineOptions> = {},
+): Array<Plugin> {
+  const options: LimitLineOptions = { ...DEFAULT_OPTIONS, ...userOptions, overrides: userOptions.overrides ?? [] };
+  const resolve = createLimitResolver(options);
+
+  const rawCodeCache = new Map<string, string>();
+
+  return [
+    {
+      name: "vite-plugin-limit-line:pre",
+      enforce: "pre",
+
+      transform(code, id) {
+        if (!shouldProcess(id, options)) return null;
+
+        rawCodeCache.set(id, code);
+
+        const limits = resolve(id);
+        if (limits.maxFileLines === null) return null;
+
+        const totalLines = code.split("\n").length;
+        if (totalLines > limits.maxFileLines) {
+          this.error(
+            [
+              `[vite-limit-line] File too long: ${totalLines} lines (limit: ${limits.maxFileLines})`,
+              `  file: ${id}`,
+              "",
+              "How to fix:",
+              "  Split this file into smaller modules — extract related types, helpers,",
+              "  or sub-components into separate files and re-export from an index.ts.",
+            ].join("\n"),
+          );
+        }
+
+        return null;
+      },
+    },
+    {
+      name: "vite-plugin-limit-line:fc",
+
+      transform(code, id) {
+        if (!shouldProcess(id, options)) return null;
+
+        const limits = resolve(id);
+        if (limits.maxReactFCLines === null) return null;
+
+        const ast = this.parse(code) as unknown as AstProgram;
+        const componentNames = extractComponentNames(ast);
+        if (componentNames.length === 0) return null;
+
+        const raw = rawCodeCache.get(id) ?? code;
+        rawCodeCache.delete(id);
+        const rawLines = raw.split("\n");
+
+        const maxFCLines = limits.maxReactFCLines;
+        const violations: Array<ComponentInfo> = [];
+        for (const name of componentNames) {
+          const info = measureComponentInSource(name, rawLines);
+          if (info && info.lineCount > maxFCLines) {
+            violations.push(info);
+          }
+        }
+
+        if (violations.length > 0) {
+          const details = violations
+            .map(
+              (v) =>
+                `  ${v.name} (line ${v.startLine}): ${v.lineCount} lines (limit: ${maxFCLines})`,
+            )
+            .join("\n");
+
+          this.error(
+            [
+              `[vite-limit-line] React component too long in ${id}:`,
+              details,
+              "",
+              "How to fix:",
+              "  Break each oversized component into smaller ones. Extract reusable",
+              "  sections into child components, move complex logic into custom hooks,",
+              "  and keep each component focused on a single responsibility.",
+            ].join("\n"),
+          );
+        }
+
+        return null;
+      },
+
+      buildEnd() {
+        rawCodeCache.clear();
+      },
+    },
+  ];
+}
+
+export { viteLimitLinePlugin };
+export type { LimitLineOptions, LimitLineOverride };

packages/workflow-dashboard/src/app.tsx

@@ -1,75 +1,38 @@
 import { useState } from "react";
+import { Navigate, Outlet, useParams } from "react-router";
 import { clearApiKey, hasApiKey } from "./api.ts";
-import { LoginPage } from "./components/login.tsx";
 import { RunDialog } from "./components/run-dialog.tsx";
 import { Sidebar } from "./components/sidebar.tsx";
 import { StatusBar } from "./components/status-bar.tsx";
-import { ThreadDetail } from "./components/thread-detail.tsx";
-import { ThreadList } from "./components/thread-list.tsx";
-import { WorkflowDetail } from "./components/workflow-detail.tsx";
-import { WorkflowList } from "./components/workflow-list.tsx";
-import { useHashRoute } from "./use-hash-route.ts";
+import { useTheme } from "./hooks/use-theme.tsx";
 
-export function App() {
+export function Layout() {
   const [authed, setAuthed] = useState(hasApiKey());
-  const { view, client, threadId, workflowName, setView, setClient, setThreadId, setWorkflowName } =
-    useHashRoute();
+  const { client } = useParams();
   const [showRun, setShowRun] = useState(false);
+  const { theme, toggleTheme } = useTheme();
 
   if (!authed) {
-    return <LoginPage onLogin={() => setAuthed(true)} />;
+    return <Navigate to="/login" replace />;
   }
 
   return (
-    <div className="flex h-screen">
+    <div className="flex h-screen bg-background">
       <Sidebar
-        view={view}
-        client={client}
-        onViewChange={setView}
-        onClientChange={setClient}
         onLogout={() => {
           clearApiKey();
           setAuthed(false);
         }}
+        theme={theme}
+        onToggleTheme={toggleTheme}
       />
       <main className="flex-1 overflow-hidden flex flex-col">
-        <StatusBar client={client} onRun={() => setShowRun(true)} />
+        <StatusBar client={client ?? null} onRun={() => setShowRun(true)} />
         <div className="flex-1 overflow-auto p-6">
-          {!client && (
-            <div className="flex items-center justify-center h-full">
-              <p style={{ color: "var(--color-text-muted)" }}>
-                Select an client from the sidebar to get started.
-              </p>
-            </div>
-          )}
-          {client && view === "threads" && threadId === null && (
-            <ThreadList client={client} onSelect={setThreadId} />
-          )}
-          {client && view === "threads" && threadId !== null && (
-            <ThreadDetail client={client} threadId={threadId} onBack={() => setThreadId(null)} />
-          )}
-          {client && view === "workflows" && workflowName === null && (
-            <WorkflowList client={client} onSelect={setWorkflowName} />
-          )}
-          {client && view === "workflows" && workflowName !== null && (
-            <WorkflowDetail
-              client={client}
-              workflowName={workflowName}
-              onBack={() => setWorkflowName(null)}
-            />
-          )}
+          <Outlet />
         </div>
       </main>
-      {showRun && client && (
-        <RunDialog
-          client={client}
-          onClose={() => setShowRun(false)}
-          onCreated={(id) => {
-            setShowRun(false);
-            setThreadId(id);
-          }}
-        />
-      )}
+      {client && <RunDialog client={client} open={showRun} onOpenChange={setShowRun} />}
     </div>
   );
 }

packages/workflow-dashboard/src/components/client-redirect.tsx

@@ -0,0 +1,31 @@
+import { Loader2, Users } from "lucide-react";
+import { Navigate } from "react-router";
+import { listClients } from "../api.ts";
+import { useFetch } from "../hooks.ts";
+
+export function ClientRedirect() {
+  const { status, data } = useFetch(() => listClients(), []);
+
+  if (status === "loading") {
+    return (
+      <div className="flex flex-col items-center justify-center h-full gap-3">
+        <Loader2 className="h-6 w-6 animate-spin text-muted-foreground" />
+        <p className="text-sm text-muted-foreground">Loading clients...</p>
+      </div>
+    );
+  }
+
+  if (status === "ok" && data.length > 0) {
+    return <Navigate to={`/${data[0].name}/threads`} replace />;
+  }
+
+  return (
+    <div className="flex flex-col items-center justify-center h-full gap-3">
+      <Users className="h-12 w-12 text-muted-foreground/50" />
+      <p className="text-sm font-medium">No client selected</p>
+      <p className="text-xs text-muted-foreground">
+        Select a client from the sidebar to get started.
+      </p>
+    </div>
+  );
+}

packages/workflow-dashboard/src/components/login.tsx

@@ -1,14 +1,18 @@
+import { AlertCircle, Loader2, Moon, Settings, Sun } from "lucide-react";
 import { useState } from "react";
+import { useNavigate } from "react-router";
 import { setApiKey } from "../api.ts";
+import { useTheme } from "../hooks/use-theme.tsx";
+import { Button } from "./ui/button.tsx";
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "./ui/card.tsx";
+import { Input } from "./ui/input.tsx";
 
-type Props = {
-  onLogin: () => void;
-};
-
-export function LoginPage({ onLogin }: Props) {
+export function LoginPage() {
+  const navigate = useNavigate();
   const [key, setKey] = useState("");
   const [error, setError] = useState<string | null>(null);
   const [loading, setLoading] = useState(false);
+  const { theme, toggleTheme } = useTheme();
 
   async function handleSubmit(e: React.FormEvent) {
     e.preventDefault();
@@ -17,7 +21,6 @@ export function LoginPage({ onLogin }: Props) {
     setLoading(true);
     setError(null);
 
-    // Test the key by hitting the endpoints list
     const gatewayUrl = import.meta.env.VITE_GATEWAY_URL || "";
     try {
       const res = await fetch(`${gatewayUrl}/api/gateway/endpoints`, {
@@ -40,56 +43,59 @@ export function LoginPage({ onLogin }: Props) {
     }
 
     setApiKey(key.trim());
-    onLogin();
+    navigate("/", { replace: true });
   }
 
   return (
-    <div
-      className="min-h-screen flex items-center justify-center"
-      style={{ background: "var(--color-bg)" }}
-    >
-      <div
-        className="p-8 rounded-lg border w-full max-w-sm"
-        style={{ background: "var(--color-surface)", borderColor: "var(--color-border)" }}
+    <div className="min-h-screen flex items-center justify-center bg-background relative">
+      <Button
+        variant="ghost"
+        size="icon"
+        className="absolute top-4 right-4 transition-colors duration-200"
+        onClick={toggleTheme}
       >
-        <h1 className="text-xl font-bold mb-1" style={{ color: "var(--color-accent)" }}>
-          ⚙ Workflow Dashboard
-        </h1>
-        <p className="text-sm mb-6" style={{ color: "var(--color-text-muted)" }}>
-          Enter your API key to continue
-        </p>
-        <form onSubmit={handleSubmit}>
-          <input
-            type="password"
-            value={key}
-            onChange={(e) => setKey(e.target.value)}
-            placeholder="API Key"
-            className="w-full px-3 py-2 rounded border text-sm mb-3 outline-none"
-            style={{
-              background: "var(--color-bg)",
-              borderColor: "var(--color-border)",
-              color: "var(--color-text)",
-            }}
-          />
-          {error && (
-            <p className="text-xs mb-3" style={{ color: "var(--color-error)" }}>
-              {error}
-            </p>
-          )}
-          <button
-            type="submit"
-            disabled={loading || !key.trim()}
-            className="w-full px-3 py-2 rounded text-sm font-medium"
-            style={{
-              background: "var(--color-accent)",
-              color: "var(--color-bg)",
-              opacity: loading || !key.trim() ? 0.5 : 1,
-            }}
-          >
-            {loading ? "Verifying..." : "Login"}
-          </button>
-        </form>
-      </div>
+        {theme === "dark" ? <Sun className="h-5 w-5" /> : <Moon className="h-5 w-5" />}
+      </Button>
+      <Card className="w-full max-w-sm shadow-lg transition-all duration-200 hover:shadow-xl hover:border-primary/30">
+        <CardHeader>
+          <CardTitle className="flex items-center gap-2 text-xl tracking-tight">
+            <Settings className="h-5 w-5" />
+            Workflow Dashboard
+          </CardTitle>
+          <CardDescription>Enter your API key to continue</CardDescription>
+        </CardHeader>
+        <CardContent>
+          <form onSubmit={handleSubmit} className="space-y-4">
+            <Input
+              type="password"
+              value={key}
+              onChange={(e) => setKey(e.target.value)}
+              placeholder="API Key"
+              className="transition-all duration-200"
+            />
+            {error && (
+              <p className="text-xs text-destructive flex items-center gap-1.5">
+                <AlertCircle className="h-3.5 w-3.5 shrink-0" />
+                {error}
+              </p>
+            )}
+            <Button
+              type="submit"
+              disabled={loading || !key.trim()}
+              className="w-full transition-all duration-200"
+            >
+              {loading ? (
+                <span className="flex items-center gap-2">
+                  <Loader2 className="h-4 w-4 animate-spin" />
+                  Verifying…
+                </span>
+              ) : (
+                "Login"
+              )}
+            </Button>
+          </form>
+        </CardContent>
+      </Card>
     </div>
   );
 }

packages/workflow-dashboard/src/components/markdown.tsx

@@ -52,19 +52,23 @@ function CodeBlock({ className, children }: { className?: string; children?: Rea
 
   if (html !== null) {
     return (
-      <div
-        className="rounded overflow-x-auto text-xs my-2"
-        // biome-ignore lint/security/noDangerouslySetInnerHtml: shiki output is safe
-        dangerouslySetInnerHTML={{ __html: html }}
-      />
+      <div className="relative rounded-lg border border-border overflow-hidden my-3">
+        {lang !== "text" && (
+          <span className="absolute top-2 right-2 text-[10px] uppercase tracking-wider text-muted-foreground/70 font-mono">
+            {lang}
+          </span>
+        )}
+        <div
+          className="overflow-x-auto text-xs"
+          // biome-ignore lint/security/noDangerouslySetInnerHtml: shiki output is safe
+          dangerouslySetInnerHTML={{ __html: html }}
+        />
+      </div>
     );
   }
 
   return (
-    <pre
-      className="rounded overflow-x-auto text-xs my-2 p-3"
-      style={{ background: "var(--color-bg)" }}
-    >
+    <pre className="rounded-lg overflow-x-auto text-xs my-3 p-3 bg-muted/50 border border-border">
       <code>{code}</code>
     </pre>
   );
@@ -80,8 +84,7 @@ export function Markdown({ content }: { content: string }) {
             if (isInline) {
               return (
                 <code
-                  className="text-xs px-1 py-0.5 rounded"
-                  style={{ background: "var(--color-border)", color: "var(--color-accent)" }}
+                  className="bg-muted rounded px-1.5 py-0.5 text-[13px] font-mono text-foreground"
                   {...props}
                 >
                   {children}
@@ -91,7 +94,7 @@ export function Markdown({ content }: { content: string }) {
             return <CodeBlock className={className}>{children}</CodeBlock>;
           },
           p({ children }) {
-            return <p className="my-1.5 leading-relaxed">{children}</p>;
+            return <p className="my-2 leading-relaxed">{children}</p>;
           },
           ul({ children }) {
             return <ul className="list-disc pl-4 my-1.5">{children}</ul>;
@@ -100,20 +103,25 @@ export function Markdown({ content }: { content: string }) {
             return <ol className="list-decimal pl-4 my-1.5">{children}</ol>;
           },
           h1({ children }) {
-            return <h1 className="text-lg font-bold mt-3 mb-1">{children}</h1>;
+            return (
+              <h1 className="text-lg font-bold mt-3 mb-2 border-b border-border pb-1">
+                {children}
+              </h1>
+            );
           },
           h2({ children }) {
-            return <h2 className="text-base font-bold mt-2 mb-1">{children}</h2>;
+            return (
+              <h2 className="text-base font-bold mt-2 mb-2 border-b border-border pb-1">
+                {children}
+              </h2>
+            );
           },
           h3({ children }) {
             return <h3 className="text-sm font-bold mt-2 mb-1">{children}</h3>;
           },
           blockquote({ children }) {
             return (
-              <blockquote
-                className="border-l-2 pl-3 my-2 text-sm"
-                style={{ borderColor: "var(--color-accent)", color: "var(--color-text-muted)" }}
-              >
+              <blockquote className="border-l-2 border-ring pl-3 my-2 text-sm text-muted-foreground bg-muted/30 rounded-r-md py-2">
                 {children}
               </blockquote>
             );

packages/workflow-dashboard/src/components/record-card.tsx

@@ -1,14 +1,26 @@
+import { CheckCircle2, Clock, MessageSquare, Rocket, User, XCircle } from "lucide-react";
 import type { RoleRecord, ThreadRecord, ThreadStartRecord, WorkflowResultRecord } from "../api.ts";
+import { cn } from "../lib/utils.ts";
 import { Markdown } from "./markdown.tsx";
+import { Badge } from "./ui/badge.tsx";
+import { Card } from "./ui/card.tsx";
 
-const ROLE_COLORS: Record<string, string> = {
-  preparer: "#8b5cf6",
-  client: "#3b82f6",
-  extractor: "#f59e0b",
-};
+const ROLE_HUES = [262, 210, 35, 150, 330, 180, 15, 280, 55, 195, 345, 120, 240, 75, 305];
 
-function roleColor(role: string): string {
-  return ROLE_COLORS[role] ?? "var(--color-accent)";
+function roleHue(role: string): number {
+  let hash = 0;
+  for (let i = 0; i < role.length; i++) {
+    hash = (hash * 31 + role.charCodeAt(i)) | 0;
+  }
+  return ROLE_HUES[Math.abs(hash) % ROLE_HUES.length];
+}
+
+function roleBadgeStyle(role: string): { backgroundColor: string; borderColor: string } {
+  const hue = roleHue(role);
+  return {
+    backgroundColor: `oklch(0.58 0.12 ${hue} / 0.85)`,
+    borderColor: `oklch(0.58 0.12 ${hue} / 0.25)`,
+  };
 }
 
 function formatTime(ts: number | null): string | null {
@@ -18,99 +30,86 @@ function formatTime(ts: number | null): string | null {
 
 function StartCard({ record }: { record: ThreadStartRecord }) {
   return (
-    <div
-      className="p-4 rounded-lg border"
-      style={{ background: "var(--color-surface)", borderColor: "var(--color-border)" }}
-    >
+    <Card className="p-4 transition-all duration-200 overflow-hidden relative">
+      <div className="absolute inset-x-0 top-0 h-0.5 bg-gradient-to-r from-primary/80 via-primary/40 to-transparent" />
       <div className="flex items-center gap-2 mb-2">
-        <span className="text-lg">🚀</span>
-        <span className="font-semibold" style={{ color: "var(--color-accent)" }}>
-          {record.workflow}
-        </span>
-        <span
-          className="text-xs px-2 py-0.5 rounded"
-          style={{
-            background: record.status === "active" ? "var(--color-success)" : "var(--color-border)",
-            color: record.status === "active" ? "var(--color-bg)" : "var(--color-text-muted)",
-          }}
-        >
+        <Rocket className="h-5 w-5 text-primary" />
+        <span className="font-semibold text-foreground">{record.workflow}</span>
+        <Badge variant={record.status === "active" ? "success" : "secondary"}>
           {record.status}
-        </span>
+        </Badge>
       </div>
       {record.prompt !== null && (
-        <div
-          className="mt-2 p-3 rounded text-sm border-l-2"
-          style={{
-            background: "var(--color-bg)",
-            borderColor: "var(--color-accent)",
-            color: "var(--color-text)",
-          }}
-        >
-          <div className="text-xs mb-1" style={{ color: "var(--color-text-muted)" }}>
+        <div className="mt-2 p-3 rounded-md text-sm border-l-2 border-ring bg-muted/50">
+          <div className="text-xs mb-1 text-muted-foreground flex items-center gap-1">
+            <MessageSquare className="h-3 w-3" />
             Prompt
           </div>
           <Markdown content={record.prompt} />
         </div>
       )}
-    </div>
+    </Card>
   );
 }
 
 function RoleMessage({ record, highlighted }: { record: RoleRecord; highlighted: boolean }) {
-  const color = roleColor(record.role);
+  const style = roleBadgeStyle(record.role);
   return (
-    <div
-      className={`p-3 rounded-lg border text-sm ${highlighted ? "wf-record-card-highlight" : ""}`}
-      style={{ background: "var(--color-surface)", borderColor: "var(--color-border)" }}
+    <Card
+      className={cn(
+        "p-3 text-sm transition-all duration-200 border-l-4",
+        highlighted && "wf-record-card-highlight",
+      )}
+      style={{ borderLeftColor: style.borderColor }}
     >
       <div className="flex items-center gap-2 mb-2">
         <span
-          className="text-xs px-2 py-0.5 rounded font-mono font-medium"
-          style={{ background: color, color: "#fff" }}
+          className="text-xs px-2 py-0.5 rounded font-mono font-medium text-white shadow-sm inline-flex items-center gap-1"
+          style={{ backgroundColor: style.backgroundColor }}
         >
+          <User className="h-3 w-3" />
           {record.role}
         </span>
         {formatTime(record.timestamp) !== null && (
-          <span className="text-xs ml-auto" style={{ color: "var(--color-text-muted)" }}>
+          <span className="text-xs ml-auto text-muted-foreground tabular-nums flex items-center gap-1">
+            <Clock className="h-3 w-3" />
             {formatTime(record.timestamp)}
           </span>
         )}
       </div>
       <Markdown content={record.content} />
-    </div>
+    </Card>
   );
 }
 
 function ResultCard({ record }: { record: WorkflowResultRecord }) {
   const success = record.returnCode === 0;
   return (
-    <div
-      className="p-4 rounded-lg border"
-      style={{
-        background: "var(--color-surface)",
-        borderColor: success ? "var(--color-success)" : "var(--color-error)",
-      }}
+    <Card
+      className={cn(
+        "p-4 transition-all duration-200 border-l-4",
+        success ? "border-l-success" : "border-l-destructive",
+      )}
     >
       <div className="flex items-center gap-2 mb-2">
-        <span className="text-lg">{success ? "✅" : "❌"}</span>
+        {success ? (
+          <CheckCircle2 className="h-5 w-5 text-success" />
+        ) : (
+          <XCircle className="h-5 w-5 text-destructive" />
+        )}
         <span className="font-semibold text-sm">{success ? "Completed" : "Failed"}</span>
-        <span
-          className="text-xs px-2 py-0.5 rounded font-mono"
-          style={{
-            background: success ? "var(--color-success)" : "var(--color-error)",
-            color: "#fff",
-          }}
-        >
+        <Badge variant="outline" className="font-mono">
           exit {record.returnCode}
-        </span>
+        </Badge>
         {formatTime(record.timestamp) !== null && (
-          <span className="text-xs ml-auto" style={{ color: "var(--color-text-muted)" }}>
+          <span className="text-xs ml-auto text-muted-foreground tabular-nums flex items-center gap-1">
+            <Clock className="h-3 w-3" />
             {formatTime(record.timestamp)}
           </span>
         )}
       </div>
       <Markdown content={record.content} />
-    </div>
+    </Card>
   );
 }
 

packages/workflow-dashboard/src/components/run-dialog.tsx

@@ -1,14 +1,27 @@
 import { useState } from "react";
+import { useNavigate } from "react-router";
 import { listWorkflows, runThread } from "../api.ts";
 import { useFetch } from "../hooks.ts";
+import { Button } from "./ui/button.tsx";
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "./ui/dialog.tsx";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "./ui/select.tsx";
+import { Textarea } from "./ui/textarea.tsx";
 
 type Props = {
   client: string;
-  onClose: () => void;
-  onCreated: (threadId: string) => void;
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
 };
 
-export function RunDialog({ client, onClose, onCreated }: Props) {
+export function RunDialog({ client, open, onOpenChange }: Props) {
+  const navigate = useNavigate();
   const workflows = useFetch(() => listWorkflows(client), [client]);
   const [workflow, setWorkflow] = useState("");
   const [prompt, setPrompt] = useState("");
@@ -22,7 +35,8 @@ export function RunDialog({ client, onClose, onCreated }: Props) {
     setError(null);
     try {
       const result = await runThread(client, workflow, prompt);
-      onCreated(result.threadId);
+      onOpenChange(false);
+      navigate(`/${client}/threads/${result.threadId}`);
     } catch (err) {
       setError(err instanceof Error ? err.message : String(err));
       setSubmitting(false);
@@ -30,95 +44,54 @@ export function RunDialog({ client, onClose, onCreated }: Props) {
   }
 
   return (
-    <div
-      className="fixed inset-0 flex items-center justify-center z-50"
-      style={{ background: "rgba(0,0,0,0.6)" }}
-    >
-      <div
-        className="w-full max-w-lg p-6 rounded-lg border"
-        style={{ background: "var(--color-surface)", borderColor: "var(--color-border)" }}
-      >
-        <h3 className="text-lg font-semibold mb-4">Run Thread on {client}</h3>
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent>
+        <DialogHeader>
+          <DialogTitle>Run Thread</DialogTitle>
+          <DialogDescription>Start a new thread on {client}</DialogDescription>
+        </DialogHeader>
         <form onSubmit={handleSubmit} className="space-y-4">
           <div>
-            <label
-              htmlFor="run-workflow"
-              className="text-sm block mb-1"
-              style={{ color: "var(--color-text-muted)" }}
-            >
+            <label htmlFor="run-workflow" className="text-sm block mb-1.5 text-muted-foreground">
               Workflow
             </label>
-            <select
-              id="run-workflow"
-              value={workflow}
-              onChange={(e) => setWorkflow(e.target.value)}
-              className="w-full px-3 py-2 rounded border text-sm"
-              style={{
-                background: "var(--color-bg)",
-                borderColor: "var(--color-border)",
-                color: "var(--color-text)",
-              }}
-            >
-              <option value="">Select a workflow...</option>
-              {workflows.status === "ok" &&
-                workflows.data.workflows.map((w) => (
-                  <option key={w.name} value={w.name}>
-                    {w.name}
-                  </option>
-                ))}
-            </select>
+            <Select value={workflow} onValueChange={setWorkflow}>
+              <SelectTrigger>
+                <SelectValue placeholder="Select a workflow..." />
+              </SelectTrigger>
+              <SelectContent>
+                {workflows.status === "ok" &&
+                  workflows.data.workflows.map((w) => (
+                    <SelectItem key={w.name} value={w.name}>
+                      {w.name}
+                    </SelectItem>
+                  ))}
+              </SelectContent>
+            </Select>
           </div>
           <div>
-            <label
-              htmlFor="run-prompt"
-              className="text-sm block mb-1"
-              style={{ color: "var(--color-text-muted)" }}
-            >
+            <label htmlFor="run-prompt" className="text-sm block mb-1.5 text-muted-foreground">
               Prompt
             </label>
-            <textarea
+            <Textarea
               id="run-prompt"
               value={prompt}
               onChange={(e) => setPrompt(e.target.value)}
               rows={4}
-              className="w-full px-3 py-2 rounded border text-sm"
-              style={{
-                background: "var(--color-bg)",
-                borderColor: "var(--color-border)",
-                color: "var(--color-text)",
-              }}
               placeholder="Enter the task prompt..."
             />
           </div>
-          {error && (
-            <p className="text-sm" style={{ color: "var(--color-error)" }}>
-              {error}
-            </p>
-          )}
-          <div className="flex gap-2 justify-end">
-            <button
-              type="button"
-              onClick={onClose}
-              className="px-4 py-2 text-sm rounded border"
-              style={{ borderColor: "var(--color-border)", color: "var(--color-text-muted)" }}
-            >
+          {error && <p className="text-sm text-destructive">{error}</p>}
+          <DialogFooter>
+            <Button type="button" variant="outline" onClick={() => onOpenChange(false)}>
               Cancel
-            </button>
-            <button
-              type="submit"
-              disabled={submitting || !workflow || !prompt}
-              className="px-4 py-2 text-sm rounded"
-              style={{
-                background: submitting ? "var(--color-accent-dim)" : "var(--color-accent)",
-                color: "#fff",
-                opacity: !workflow || !prompt ? 0.5 : 1,
-              }}
-            >
+            </Button>
+            <Button type="submit" disabled={submitting || !workflow || !prompt}>
               {submitting ? "Starting..." : "Run"}
-            </button>
-          </div>
+            </Button>
+          </DialogFooter>
         </form>
-      </div>
-    </div>
+      </DialogContent>
+    </Dialog>
   );
 }

packages/workflow-dashboard/src/components/sidebar.tsx

@@ -1,109 +1,131 @@
-import { useEffect } from "react";
+import { Loader2, LogOut, Moon, Package, Sun, Zap } from "lucide-react";
+import { useLocation, useNavigate, useParams } from "react-router";
 import type { ClientEndpoint } from "../api.ts";
 import { listClients } from "../api.ts";
 import { useFetch } from "../hooks.ts";
+import { cn } from "../lib/utils.ts";
+import { Button } from "./ui/button.tsx";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "./ui/select.tsx";
+import { Separator } from "./ui/separator.tsx";
 
 type Props = {
-  view: "threads" | "workflows";
-  client: string | null;
-  onViewChange: (v: "threads" | "workflows") => void;
-  onClientChange: (a: string | null) => void;
   onLogout: () => void;
+  theme: "light" | "dark";
+  onToggleTheme: () => void;
 };
 
-export function Sidebar({ view, client, onViewChange, onClientChange, onLogout }: Props) {
+export function Sidebar({ onLogout, theme, onToggleTheme }: Props) {
+  const { client } = useParams();
+  const navigate = useNavigate();
+  const location = useLocation();
   const { status, data } = useFetch(() => listClients(), []);
 
   const clients: ClientEndpoint[] = status === "ok" ? data : [];
 
-  // Auto-select first client when none is selected
-  useEffect(() => {
-    if (client === null && clients.length > 0) {
-      onClientChange(clients[0].name);
-    }
-  }, [client, clients, onClientChange]);
+  const view = location.pathname.includes("/workflows") ? "workflows" : "threads";
 
   const viewItems = [
-    { key: "threads" as const, label: "Threads", icon: "⚡" },
-    { key: "workflows" as const, label: "Workflows", icon: "📦" },
+    { key: "threads" as const, label: "Threads", icon: Zap },
+    { key: "workflows" as const, label: "Workflows", icon: Package },
   ];
 
   return (
-    <aside
-      className="w-56 border-r flex flex-col"
-      style={{ borderColor: "var(--color-border)", background: "var(--color-surface)" }}
-    >
-      <div className="p-4 border-b" style={{ borderColor: "var(--color-border)" }}>
-        <h1 className="text-lg font-semibold" style={{ color: "var(--color-accent)" }}>
-          ⚙ Workflow
-        </h1>
-        <p className="text-xs mt-1" style={{ color: "var(--color-text-muted)" }}>
-          Dashboard
-        </p>
+    <aside className="w-56 border-r border-border flex flex-col bg-sidebar">
+      <div className="p-4 border-b border-primary/20">
+        <h1 className="text-xl font-bold text-foreground tracking-tight">Workflow</h1>
+        <p className="text-xs text-muted-foreground mt-0.5 tracking-wide uppercase">Dashboard</p>
       </div>
 
-      {/* Client selector */}
-      <div className="px-4 py-3 border-b" style={{ borderColor: "var(--color-border)" }}>
+      <div className="px-3 py-3">
         <label
-          className="block text-xs font-medium mb-1"
-          style={{ color: "var(--color-text-muted)" }}
+          className="block text-xs font-medium mb-1.5 text-muted-foreground"
           htmlFor="client-select"
         >
           Client
         </label>
-        <select
-          id="client-select"
-          className="w-full rounded px-2 py-1.5 text-xs"
-          style={{
-            background: "var(--color-bg)",
-            color: "var(--color-text)",
-            border: "1px solid var(--color-border)",
-          }}
-          value={client ?? ""}
-          onChange={(e) => onClientChange(e.target.value || null)}
-          disabled={status === "loading"}
-        >
-          {status === "loading" ? (
-            <option value="">Loading…</option>
-          ) : clients.length === 0 ? (
-            <option value="">No clients online</option>
-          ) : (
-            clients.map((a) => (
-              <option key={a.name} value={a.name}>
-                {a.status === "online" ? "🟢" : "🔴"} {a.name}
-              </option>
-            ))
-          )}
-        </select>
-      </div>
-
-      {/* View navigation */}
-      <nav className="flex-1 p-2 space-y-1">
-        {viewItems.map((item) => (
-          <button
-            type="button"
-            key={item.key}
-            onClick={() => onViewChange(item.key)}
-            className="w-full text-left px-3 py-2 rounded text-sm transition-colors"
-            style={{
-              background: view === item.key ? "var(--color-accent-dim)" : "transparent",
-              color: view === item.key ? "#fff" : "var(--color-text-muted)",
+        {status === "loading" ? (
+          <div className="h-9 rounded-md border border-input bg-transparent px-3 py-2 text-xs text-muted-foreground flex items-center gap-2">
+            <Loader2 className="h-3.5 w-3.5 animate-spin" />
+            Loading…
+          </div>
+        ) : clients.length === 0 ? (
+          <div className="h-9 rounded-md border border-input bg-transparent px-3 py-2 text-xs text-muted-foreground flex items-center">
+            No clients online
+          </div>
+        ) : (
+          <Select
+            value={client ?? ""}
+            onValueChange={(name) => {
+              if (name) navigate(`/${name}/${view}`);
             }}
           >
-            {item.icon} {item.label}
-          </button>
+            <SelectTrigger className="h-8 text-xs transition-colors duration-200">
+              <SelectValue placeholder="Select client…" />
+            </SelectTrigger>
+            <SelectContent>
+              {clients.map((a) => (
+                <SelectItem key={a.name} value={a.name} className="text-xs">
+                  <span className="flex items-center gap-2">
+                    <span
+                      className={cn(
+                        "inline-block h-2 w-2 rounded-full",
+                        a.status === "online" ? "bg-success animate-pulse" : "bg-destructive",
+                      )}
+                    />
+                    {a.name}
+                  </span>
+                </SelectItem>
+              ))}
+            </SelectContent>
+          </Select>
+        )}
+      </div>
+
+      <Separator />
+
+      <nav className="flex-1 p-2 space-y-1">
+        {viewItems.map((item) => (
+          <Button
+            key={item.key}
+            variant={view === item.key ? "secondary" : "ghost"}
+            size="sm"
+            className={cn(
+              "w-full justify-start gap-2 transition-colors duration-200",
+              view === item.key
+                ? "text-foreground border-l-2 border-primary rounded-l-none"
+                : "text-muted-foreground hover:text-foreground",
+            )}
+            onClick={() => {
+              if (client) navigate(`/${client}/${item.key}`);
+            }}
+          >
+            <item.icon className="h-4 w-4" />
+            {item.label}
+          </Button>
         ))}
       </nav>
 
-      <div className="p-2 border-t" style={{ borderColor: "var(--color-border)" }}>
-        <button
-          type="button"
-          onClick={onLogout}
-          className="w-full text-left px-3 py-2 rounded text-xs transition-colors"
-          style={{ color: "var(--color-text-muted)" }}
+      <Separator />
+
+      <div className="p-2 space-y-1">
+        <Button
+          variant="ghost"
+          size="sm"
+          className="w-full justify-start gap-2 text-muted-foreground hover:text-foreground transition-colors duration-200"
+          onClick={onToggleTheme}
         >
-          🚪 Logout
-        </button>
+          {theme === "dark" ? <Sun className="h-4 w-4" /> : <Moon className="h-4 w-4" />}
+          {theme === "dark" ? "Light mode" : "Dark mode"}
+        </Button>
+        <Button
+          variant="ghost"
+          size="sm"
+          className="w-full justify-start gap-2 text-muted-foreground hover:text-foreground transition-colors duration-200"
+          onClick={onLogout}
+        >
+          <LogOut className="h-4 w-4" />
+          Logout
+        </Button>
       </div>
     </aside>
   );

packages/workflow-dashboard/src/components/status-bar.tsx

@@ -1,5 +1,7 @@
+import { Loader2, Play, Wifi, WifiOff } from "lucide-react";
 import { useCallback, useEffect, useRef, useState } from "react";
 import { getClientHealth } from "../api.ts";
+import { Button } from "./ui/button.tsx";
 
 type HealthStatus = "connected" | "disconnected" | "reconnecting";
 
@@ -8,14 +10,29 @@ type Props = {
   onRun: () => void;
 };
 
-function statusLabel(status: HealthStatus): { text: string; color: string } {
+function StatusIndicator({ status }: { status: HealthStatus }) {
   if (status === "connected") {
-    return { text: "● Connected", color: "var(--color-success)" };
+    return (
+      <span className="flex items-center gap-1.5 text-xs text-success transition-colors duration-200">
+        <Wifi className="h-3.5 w-3.5" />
+        Connected
+      </span>
+    );
   }
   if (status === "reconnecting") {
-    return { text: "● Reconnecting...", color: "var(--color-warning, #f59e0b)" };
+    return (
+      <span className="flex items-center gap-1.5 text-xs text-warning transition-colors duration-200">
+        <Loader2 className="h-3.5 w-3.5 animate-spin" />
+        Reconnecting…
+      </span>
+    );
   }
-  return { text: "● Offline", color: "var(--color-error)" };
+  return (
+    <span className="flex items-center gap-1.5 text-xs text-destructive transition-colors duration-200">
+      <WifiOff className="h-3.5 w-3.5" />
+      Offline
+    </span>
+  );
 }
 
 export function StatusBar({ client, onRun }: Props) {
@@ -48,32 +65,24 @@ export function StatusBar({ client, onRun }: Props) {
     return () => clearInterval(interval);
   }, [checkHealth]);
 
-  const label = statusLabel(status);
-
   return (
-    <div
-      className="flex items-center justify-between px-6 py-2 text-xs border-b"
-      style={{ borderColor: "var(--color-border)", background: "var(--color-surface)" }}
-    >
+    <div className="flex items-center justify-between px-6 py-2 text-xs border-b border-border bg-card/80 backdrop-blur-sm">
       <div className="flex items-center gap-4">
-        <span style={{ color: "var(--color-text-muted)" }}>
+        <span className="text-muted-foreground">
           {client ? `Client: ${client}` : "No client selected"}
         </span>
-        <button
-          type="button"
-          onClick={onRun}
+        <Button
+          variant="default"
+          size="sm"
           disabled={!client}
-          className="px-3 py-1 rounded text-xs font-medium"
-          style={{
-            background: client ? "var(--color-accent)" : "var(--color-border)",
-            color: "#fff",
-            opacity: client ? 1 : 0.5,
-          }}
+          onClick={onRun}
+          className="h-7 gap-1.5 transition-all duration-200"
         >
-          ▶ Run Thread
-        </button>
+          <Play className="h-3.5 w-3.5" />
+          Run Thread
+        </Button>
       </div>
-      <span style={{ color: label.color }}>{label.text}</span>
+      <StatusIndicator status={status} />
     </div>
   );
 }

packages/workflow-dashboard/src/components/thread-detail.tsx

@@ -1,4 +1,6 @@
+import { AlertCircle, ArrowLeft, Layers, Loader2, Pause, Play, X } from "lucide-react";
 import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import { useNavigate, useParams } from "react-router";
 import {
   getThread,
   getWorkflowDescriptor,
@@ -11,14 +13,12 @@ import {
 import { useFetch } from "../hooks.ts";
 import { useSSE } from "../use-sse.ts";
 import { RecordCard } from "./record-card.tsx";
+import { Badge } from "./ui/badge.tsx";
+import { Button } from "./ui/button.tsx";
+import { Card } from "./ui/card.tsx";
+import { ResizablePanel } from "./ui/resizable-panel.tsx";
 import { type NodeState, WorkflowGraph } from "./workflow-graph/index.ts";
 
-type Props = {
-  client: string;
-  threadId: string;
-  onBack: () => void;
-};
-
 function extractWorkflowName(records: readonly ThreadRecord[]): string | null {
   for (const r of records) {
     if (r.type === "thread-start") return r.workflow;
@@ -53,7 +53,11 @@ function computeNodeStates(records: readonly ThreadRecord[]): Map<string, NodeSt
   return states;
 }
 
-export function ThreadDetail({ client, threadId, onBack }: Props) {
+export function ThreadDetail() {
+  const params = useParams();
+  const navigate = useNavigate();
+  const client = params.client as string;
+  const threadId = params.threadId as string;
   const sse = useSSE(client, threadId);
   const { status, data, error } = useFetch(() => getThread(client, threadId), [client, threadId]);
   const [actionStatus, setActionStatus] = useState<string | null>(null);
@@ -93,28 +97,23 @@ export function ThreadDetail({ client, threadId, onBack }: Props) {
     return m;
   }, [records]);
 
-  // Track which occurrence to jump to next per role (cycling)
   const clickCycleRef = useRef<Map<string, number>>(new Map());
 
   const handleGraphNodeClick = useCallback(
     (nodeId: string) => {
-      // Only allow clicks on lit (non-default) nodes
       if (nodeStates.get(nodeId) === undefined || nodeStates.get(nodeId) === "default") return;
 
-      // __start__: scroll to the first record (thread-start prompt)
       if (nodeId === "__start__") {
         const firstCard = document.querySelector('[data-record-index="0"]');
         if (firstCard !== null) firstCard.scrollIntoView({ behavior: "smooth", block: "center" });
         return;
       }
 
-      // __end__: scroll to bottom
       if (nodeId === "__end__") {
         recordsEndRef.current?.scrollIntoView({ behavior: "smooth", block: "end" });
         return;
       }
 
-      // Role nodes: cycle through occurrences
       const indices = indicesByRole.get(nodeId);
       if (indices === undefined || indices.length === 0) return;
 
@@ -152,7 +151,7 @@ export function ThreadDetail({ client, threadId, onBack }: Props) {
     try {
       const fn = action === "kill" ? killThread : action === "pause" ? pauseThread : resumeThread;
       await fn(client, threadId);
-      setActionStatus(`${action} sent ✓`);
+      setActionStatus(null);
     } catch (e) {
       setActionStatus(`${action} failed: ${e instanceof Error ? e.message : String(e)}`);
     }
@@ -161,88 +160,84 @@ export function ThreadDetail({ client, threadId, onBack }: Props) {
   return (
     <div>
       <div className="flex items-center justify-between mb-4">
-        <button
-          type="button"
-          onClick={onBack}
-          className="text-sm hover:underline"
-          style={{ color: "var(--color-accent)" }}
+        <Button
+          variant="ghost"
+          className="gap-1.5 px-2 text-muted-foreground hover:text-foreground transition-colors duration-200"
+          onClick={() => navigate(`/${client}/threads`)}
         >
-          ← Back to threads
-        </button>
-        <div className="flex gap-2">
-          <button
-            type="button"
+          <ArrowLeft className="h-4 w-4" />
+          Back to threads
+        </Button>
+        <div className="flex gap-1 rounded-lg border border-border bg-muted/30 p-1">
+          <Button
+            variant="outline"
+            size="sm"
+            className="transition-colors duration-200"
             onClick={() => handleAction("pause")}
-            className="px-3 py-1 text-xs rounded border"
-            style={{ borderColor: "var(--color-warning)", color: "var(--color-warning)" }}
           >
-            ⏸ Pause
-          </button>
-          <button
-            type="button"
+            <Pause className="h-3.5 w-3.5 text-warning" />
+            Pause
+          </Button>
+          <Button
+            variant="outline"
+            size="sm"
+            className="transition-colors duration-200"
             onClick={() => handleAction("resume")}
-            className="px-3 py-1 text-xs rounded border"
-            style={{ borderColor: "var(--color-success)", color: "var(--color-success)" }}
           >
-            ▶ Resume
-          </button>
-          <button
-            type="button"
+            <Play className="h-3.5 w-3.5 text-success" />
+            Resume
+          </Button>
+          <Button
+            variant="outline"
+            size="sm"
+            className="transition-colors duration-200"
             onClick={() => handleAction("kill")}
-            className="px-3 py-1 text-xs rounded border"
-            style={{ borderColor: "var(--color-error)", color: "var(--color-error)" }}
           >
-            ✕ Kill
-          </button>
+            <X className="h-3.5 w-3.5 text-destructive" />
+            Kill
+          </Button>
         </div>
       </div>
 
-      <h2 className="text-xl font-semibold mb-2 font-mono flex items-center gap-2 flex-wrap">
+      <h2 className="text-xl font-semibold mb-2 font-mono tracking-tight flex items-center gap-2 flex-wrap">
         <span>{threadId}</span>
         {sse.connected && !sse.completed && (
-          <span
-            className="text-xs font-medium px-2 py-0.5 rounded"
-            style={{ background: "var(--color-success)", color: "var(--color-bg)" }}
-          >
+          <Badge variant="success" className="animate-pulse flex items-center gap-1.5">
+            <span className="inline-block h-2 w-2 rounded-full bg-success-foreground" />
             Live
-          </span>
+          </Badge>
         )}
       </h2>
       {actionStatus && (
-        <p className="text-xs mb-4" style={{ color: "var(--color-text-muted)" }}>
+        <Badge variant="secondary" className="mb-4 text-xs font-normal">
           {actionStatus}
-        </p>
+        </Badge>
       )}
 
       <div className="flex gap-4" style={{ minHeight: "calc(100vh - 120px)" }}>
         {descriptor !== null && descriptor.graph.edges.length > 0 && (
-          <div
-            className="shrink-0"
+          <ResizablePanel
+            defaultWidth={360}
+            minWidth={240}
+            maxWidth={560}
+            className={null}
             style={{
-              width: 280,
               position: "sticky",
               top: 16,
               height: "calc(100vh - 120px)",
               alignSelf: "flex-start",
             }}
           >
-            <div
-              className="rounded-lg border h-full flex flex-col overflow-hidden"
-              style={{ borderColor: "var(--color-border)", background: "var(--color-surface)" }}
-            >
-              <div
-                className="flex items-center justify-between px-3 py-2 text-xs"
-                style={{ color: "var(--color-text-muted)" }}
-              >
-                <span className="font-mono">
+            <Card className="h-full flex flex-col overflow-hidden">
+              <div className="flex items-center justify-between px-3 py-2 text-xs text-muted-foreground bg-muted/50 border-b border-border">
+                <span className="font-mono flex items-center gap-1.5">
+                  <Layers className="h-3.5 w-3.5" />
                   Workflow graph
                   {workflowName !== null && (
-                    <span className="ml-2" style={{ color: "var(--color-text)" }}>
-                      {workflowName}
-                    </span>
+                    <span className="ml-2 text-foreground">{workflowName}</span>
                   )}
                 </span>
-                <span>
+                <span className="tabular-nums">
                   {descriptor.graph.edges.length} edge
                   {descriptor.graph.edges.length === 1 ? "" : "s"}
                 </span>
@@ -255,19 +250,25 @@ export function ThreadDetail({ client, threadId, onBack }: Props) {
                   onNodeClick={handleGraphNodeClick}
                 />
               </div>
-            </div>
-          </div>
+            </Card>
+          </ResizablePanel>
         )}
 
         <div className="flex-1 min-w-0">
           {status === "loading" && !liveActive && records.length === 0 && (
-            <p style={{ color: "var(--color-text-muted)" }}>Loading...</p>
+            <div className="flex flex-col items-center justify-center py-16 text-muted-foreground gap-3">
+              <Loader2 className="h-6 w-6 animate-spin" />
+              <span className="text-sm">Loading thread...</span>
+            </div>
           )}
           {status === "error" && !liveActive && (
-            <p style={{ color: "var(--color-error)" }}>Error: {error}</p>
+            <div className="flex items-center gap-2 py-8 justify-center text-destructive">
+              <AlertCircle className="h-5 w-5" />
+              <span className="text-sm">Error: {error}</span>
+            </div>
           )}
           {(status === "ok" || liveActive || records.length > 0) && (
-            <div className="space-y-3">
+            <div className="border-l-2 border-border ml-2 pl-4 space-y-3">
               {records.map((r, i) => {
                 const key = `${threadId}-${i}`;
                 if (r.type === "role") {
@@ -278,18 +279,21 @@ export function ThreadDetail({ client, threadId, onBack }: Props) {
                     <div
                       key={key}
                       data-record-index={i}
+                      className="relative"
                       ref={(el) => {
                         if (!isFirstForRole) return;
                         if (el !== null) firstCardByRoleRef.current.set(r.role, el);
                         else firstCardByRoleRef.current.delete(r.role);
                       }}
                     >
+                      <div className="absolute -left-[1.3rem] top-4 h-2.5 w-2.5 rounded-full border-2 border-border bg-background" />
                       <RecordCard record={r} highlighted={flash} />
                     </div>
                   );
                 }
                 return (
-                  <div key={key} data-record-index={i}>
+                  <div key={key} data-record-index={i} className="relative">
+                    <div className="absolute -left-[1.3rem] top-4 h-2.5 w-2.5 rounded-full border-2 border-border bg-background" />
                     <RecordCard record={r} highlighted={false} />
                   </div>
                 );

packages/workflow-dashboard/src/components/thread-list.tsx

@@ -1,17 +1,37 @@
+import { AlertCircle, Clock, Loader2, Workflow, Zap } from "lucide-react";
+import { useNavigate, useParams } from "react-router";
 import { listThreads } from "../api.ts";
 import { useFetch } from "../hooks.ts";
+import { Badge } from "./ui/badge.tsx";
+import { Card } from "./ui/card.tsx";
 
-type Props = {
-  client: string;
-  onSelect: (id: string) => void;
-};
+function statusVariant(status: string): "success" | "destructive" | "secondary" {
+  if (status === "completed") return "success";
+  if (status === "failed") return "destructive";
+  return "secondary";
+}
 
-export function ThreadList({ client, onSelect }: Props) {
+export function ThreadList() {
+  const params = useParams();
+  const navigate = useNavigate();
+  const client = params.client as string;
   const { status, data, error } = useFetch(() => listThreads(client), [client]);
 
   if (status === "loading")
-    return <p style={{ color: "var(--color-text-muted)" }}>Loading threads...</p>;
-  if (status === "error") return <p style={{ color: "var(--color-error)" }}>Error: {error}</p>;
+    return (
+      <div className="flex flex-col items-center justify-center py-16 gap-3">
+        <Loader2 className="h-4 w-4 animate-spin text-muted-foreground" />
+        <p className="text-sm text-muted-foreground">Loading threads...</p>
+      </div>
+    );
+
+  if (status === "error")
+    return (
+      <div className="flex flex-col items-center justify-center py-16 gap-3">
+        <AlertCircle className="h-5 w-5 text-destructive" />
+        <p className="text-sm text-destructive">Error: {error}</p>
+      </div>
+    );
 
   const threads = [...data.threads].sort((a, b) => {
     if (!a.startedAt && !b.startedAt) return 0;
@@ -22,51 +42,44 @@ export function ThreadList({ client, onSelect }: Props) {
 
   return (
     <div>
-      <h2 className="text-xl font-semibold mb-4">Threads</h2>
+      <h2 className="text-xl font-semibold tracking-tight mb-4">Threads</h2>
       {threads.length === 0 ? (
-        <p style={{ color: "var(--color-text-muted)" }}>No threads found.</p>
+        <div className="flex flex-col items-center justify-center py-16 gap-3">
+          <Zap className="h-12 w-12 text-muted-foreground/50" />
+          <p className="text-sm font-medium">No threads</p>
+          <p className="text-xs text-muted-foreground">
+            Run a workflow to create your first thread.
+          </p>
+        </div>
       ) : (
         <div className="space-y-2">
           {threads.map((t) => (
-            <button
-              type="button"
+            <Card
               key={t.threadId}
-              onClick={() => onSelect(t.threadId)}
-              className="w-full text-left p-4 rounded-lg border transition-colors hover:border-[var(--color-accent-dim)]"
-              style={{ background: "var(--color-surface)", borderColor: "var(--color-border)" }}
+              className="p-4 cursor-pointer hover:bg-accent/50 hover:shadow-sm transition-all duration-200"
+              onClick={() => navigate(`/${client}/threads/${t.threadId}`)}
             >
               <div className="flex items-center justify-between">
-                <code className="text-sm font-mono" style={{ color: "var(--color-accent)" }}>
-                  {t.threadId}
-                </code>
+                <code className="font-mono text-sm text-foreground">{t.threadId}</code>
                 {t.status && (
-                  <span
-                    className="text-xs px-2 py-0.5 rounded"
-                    style={{
-                      background:
-                        t.status === "completed"
-                          ? "var(--color-success)"
-                          : t.status === "failed"
-                            ? "var(--color-error)"
-                            : "var(--color-accent)",
-                      color: "#000",
-                    }}
-                  >
+                  <Badge variant={statusVariant(t.status)} className="text-xs">
                     {t.status}
-                  </span>
+                  </Badge>
                 )}
               </div>
               {t.workflow && (
-                <p className="text-sm mt-1" style={{ color: "var(--color-text-muted)" }}>
+                <p className="text-sm mt-1 font-medium text-foreground flex items-center gap-1.5">
+                  <Workflow className="h-3.5 w-3.5 text-muted-foreground" />
                   {t.workflow}
                 </p>
               )}
               {t.startedAt && (
-                <p className="text-xs mt-1" style={{ color: "var(--color-text-muted)" }}>
+                <p className="text-xs mt-1 text-muted-foreground flex items-center gap-1.5">
+                  <Clock className="h-3 w-3" />
                   {t.startedAt}
                 </p>
               )}
-            </button>
+            </Card>
           ))}
         </div>
       )}

packages/workflow-dashboard/src/components/ui/badge.tsx

@@ -0,0 +1,30 @@
+import { cva, type VariantProps } from "class-variance-authority";
+import type { HTMLAttributes } from "react";
+import { cn } from "../../lib/utils.ts";
+
+const badgeVariants = cva(
+  "inline-flex items-center rounded-md border px-2.5 py-0.5 text-xs font-semibold transition-colors focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2",
+  {
+    variants: {
+      variant: {
+        default: "border-transparent bg-primary text-primary-foreground shadow",
+        secondary: "border-transparent bg-secondary text-secondary-foreground",
+        destructive: "border-transparent bg-destructive text-destructive-foreground shadow",
+        outline: "text-foreground",
+        success: "border-transparent bg-success text-success-foreground shadow",
+        warning: "border-transparent bg-warning text-warning-foreground shadow",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  },
+);
+
+export type BadgeProps = HTMLAttributes<HTMLDivElement> & VariantProps<typeof badgeVariants>;
+
+function Badge({ className, variant, ...props }: BadgeProps) {
+  return <div className={cn(badgeVariants({ variant }), className)} {...props} />;
+}
+
+export { Badge, badgeVariants };

packages/workflow-dashboard/src/components/ui/button.tsx

@@ -0,0 +1,45 @@
+import { Slot } from "@radix-ui/react-slot";
+import { cva, type VariantProps } from "class-variance-authority";
+import type { ButtonHTMLAttributes } from "react";
+import { cn } from "../../lib/utils.ts";
+
+const buttonVariants = cva(
+  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-colors focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0",
+  {
+    variants: {
+      variant: {
+        default: "bg-primary text-primary-foreground shadow hover:bg-primary/90",
+        destructive: "bg-destructive text-destructive-foreground shadow-sm hover:bg-destructive/90",
+        outline:
+          "border border-input bg-background shadow-sm hover:bg-accent hover:text-accent-foreground",
+        secondary: "bg-secondary text-secondary-foreground shadow-sm hover:bg-secondary/80",
+        ghost: "hover:bg-accent hover:text-accent-foreground",
+        link: "text-primary underline-offset-4 hover:underline",
+        success: "border border-success text-success hover:bg-success/10",
+        warning: "border border-warning text-warning hover:bg-warning/10",
+      },
+      size: {
+        default: "h-9 px-4 py-2",
+        sm: "h-8 rounded-md px-3 text-xs",
+        lg: "h-10 rounded-md px-8",
+        icon: "h-9 w-9",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  },
+);
+
+export type ButtonProps = ButtonHTMLAttributes<HTMLButtonElement> &
+  VariantProps<typeof buttonVariants> & {
+    asChild?: boolean;
+  };
+
+function Button({ className, variant, size, asChild = false, ...props }: ButtonProps) {
+  const Comp = asChild ? Slot : "button";
+  return <Comp className={cn(buttonVariants({ variant, size, className }))} {...props} />;
+}
+
+export { Button, buttonVariants };

packages/workflow-dashboard/src/components/ui/card.tsx

@@ -0,0 +1,36 @@
+import type { HTMLAttributes } from "react";
+import { cn } from "../../lib/utils.ts";
+
+function Card({ className, ...props }: HTMLAttributes<HTMLDivElement>) {
+  return (
+    <div
+      className={cn(
+        "rounded-lg border border-border bg-card text-card-foreground shadow-sm",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function CardHeader({ className, ...props }: HTMLAttributes<HTMLDivElement>) {
+  return <div className={cn("flex flex-col space-y-1.5 p-6", className)} {...props} />;
+}
+
+function CardTitle({ className, ...props }: HTMLAttributes<HTMLDivElement>) {
+  return <div className={cn("font-semibold leading-none tracking-tight", className)} {...props} />;
+}
+
+function CardDescription({ className, ...props }: HTMLAttributes<HTMLDivElement>) {
+  return <div className={cn("text-sm text-muted-foreground", className)} {...props} />;
+}
+
+function CardContent({ className, ...props }: HTMLAttributes<HTMLDivElement>) {
+  return <div className={cn("p-6 pt-0", className)} {...props} />;
+}
+
+function CardFooter({ className, ...props }: HTMLAttributes<HTMLDivElement>) {
+  return <div className={cn("flex items-center p-6 pt-0", className)} {...props} />;
+}
+
+export { Card, CardContent, CardDescription, CardFooter, CardHeader, CardTitle };

packages/workflow-dashboard/src/components/ui/collapsible.tsx

@@ -0,0 +1,7 @@
+import * as CollapsiblePrimitive from "@radix-ui/react-collapsible";
+
+const Collapsible = CollapsiblePrimitive.Root;
+const CollapsibleTrigger = CollapsiblePrimitive.CollapsibleTrigger;
+const CollapsibleContent = CollapsiblePrimitive.CollapsibleContent;
+
+export { Collapsible, CollapsibleContent, CollapsibleTrigger };

packages/workflow-dashboard/src/components/ui/dialog.tsx

@@ -0,0 +1,104 @@
+import * as DialogPrimitive from "@radix-ui/react-dialog";
+import { X } from "lucide-react";
+import type { ComponentPropsWithoutRef, HTMLAttributes } from "react";
+import { cn } from "../../lib/utils.ts";
+
+const Dialog = DialogPrimitive.Root;
+const DialogTrigger = DialogPrimitive.Trigger;
+const DialogPortal = DialogPrimitive.Portal;
+const DialogClose = DialogPrimitive.Close;
+
+function DialogOverlay({
+  className,
+  ...props
+}: ComponentPropsWithoutRef<typeof DialogPrimitive.Overlay>) {
+  return (
+    <DialogPrimitive.Overlay
+      className={cn(
+        "fixed inset-0 z-50 bg-black/80 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function DialogContent({
+  className,
+  children,
+  ...props
+}: ComponentPropsWithoutRef<typeof DialogPrimitive.Content>) {
+  return (
+    <DialogPortal>
+      <DialogOverlay />
+      <DialogPrimitive.Content
+        className={cn(
+          "fixed left-[50%] top-[50%] z-50 grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border border-border bg-card p-6 shadow-lg duration-200 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] rounded-lg",
+          className,
+        )}
+        {...props}
+      >
+        {children}
+        <DialogPrimitive.Close className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-accent data-[state=open]:text-muted-foreground">
+          <X className="h-4 w-4" />
+          <span className="sr-only">Close</span>
+        </DialogPrimitive.Close>
+      </DialogPrimitive.Content>
+    </DialogPortal>
+  );
+}
+
+function DialogHeader({ className, ...props }: HTMLAttributes<HTMLDivElement>) {
+  return (
+    <div
+      className={cn("flex flex-col space-y-1.5 text-center sm:text-left", className)}
+      {...props}
+    />
+  );
+}
+
+function DialogFooter({ className, ...props }: HTMLAttributes<HTMLDivElement>) {
+  return (
+    <div
+      className={cn("flex flex-col-reverse sm:flex-row sm:justify-end sm:space-x-2", className)}
+      {...props}
+    />
+  );
+}
+
+function DialogTitle({
+  className,
+  ...props
+}: ComponentPropsWithoutRef<typeof DialogPrimitive.Title>) {
+  return (
+    <DialogPrimitive.Title
+      className={cn("text-lg font-semibold leading-none tracking-tight", className)}
+      {...props}
+    />
+  );
+}
+
+function DialogDescription({
+  className,
+  ...props
+}: ComponentPropsWithoutRef<typeof DialogPrimitive.Description>) {
+  return (
+    <DialogPrimitive.Description
+      className={cn("text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  );
+}
+
+export {
+  Dialog,
+  DialogClose,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogOverlay,
+  DialogPortal,
+  DialogTitle,
+  DialogTrigger,
+};

packages/workflow-dashboard/src/components/ui/input.tsx

@@ -0,0 +1,17 @@
+import type { InputHTMLAttributes } from "react";
+import { cn } from "../../lib/utils.ts";
+
+function Input({ className, type, ...props }: InputHTMLAttributes<HTMLInputElement>) {
+  return (
+    <input
+      type={type}
+      className={cn(
+        "flex h-9 w-full rounded-md border border-input bg-transparent px-3 py-1 text-sm shadow-sm transition-colors file:border-0 file:bg-transparent file:text-sm file:font-medium file:text-foreground placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export { Input };

packages/workflow-dashboard/src/components/ui/resizable-panel.tsx

@@ -0,0 +1,73 @@
+import {
+  type CSSProperties,
+  type PointerEvent as ReactPointerEvent,
+  useCallback,
+  useRef,
+  useState,
+} from "react";
+import { cn } from "../../lib/utils.ts";
+
+type Props = {
+  defaultWidth: number;
+  minWidth: number;
+  maxWidth: number;
+  className: string | null;
+  style: CSSProperties | null;
+  children: React.ReactNode;
+};
+
+export function ResizablePanel({
+  defaultWidth,
+  minWidth,
+  maxWidth,
+  className,
+  style,
+  children,
+}: Props) {
+  const [width, setWidth] = useState(defaultWidth);
+  const dragging = useRef(false);
+  const startX = useRef(0);
+  const startW = useRef(0);
+
+  const onPointerDown = useCallback(
+    (e: ReactPointerEvent<HTMLDivElement>) => {
+      e.preventDefault();
+      dragging.current = true;
+      startX.current = e.clientX;
+      startW.current = width;
+      (e.target as HTMLElement).setPointerCapture(e.pointerId);
+    },
+    [width],
+  );
+
+  const onPointerMove = useCallback(
+    (e: ReactPointerEvent<HTMLDivElement>) => {
+      if (!dragging.current) return;
+      const delta = e.clientX - startX.current;
+      const next = Math.min(maxWidth, Math.max(minWidth, startW.current + delta));
+      setWidth(next);
+    },
+    [minWidth, maxWidth],
+  );
+
+  const onPointerUp = useCallback(() => {
+    dragging.current = false;
+  }, []);
+
+  return (
+    <div
+      className={cn("relative shrink-0", className)}
+      style={{ ...style, width }}
+    >
+      {children}
+      <div
+        className="absolute top-0 -right-1 w-2 h-full cursor-col-resize z-10 group"
+        onPointerDown={onPointerDown}
+        onPointerMove={onPointerMove}
+        onPointerUp={onPointerUp}
+      >
+        <div className="absolute inset-y-0 left-1/2 w-px bg-border opacity-0 group-hover:opacity-100 transition-opacity duration-150" />
+      </div>
+    </div>
+  );
+}

packages/workflow-dashboard/src/components/ui/scroll-area.tsx

@@ -0,0 +1,42 @@
+import * as ScrollAreaPrimitive from "@radix-ui/react-scroll-area";
+import type { ComponentPropsWithoutRef } from "react";
+import { cn } from "../../lib/utils.ts";
+
+function ScrollArea({
+  className,
+  children,
+  ...props
+}: ComponentPropsWithoutRef<typeof ScrollAreaPrimitive.Root>) {
+  return (
+    <ScrollAreaPrimitive.Root className={cn("relative overflow-hidden", className)} {...props}>
+      <ScrollAreaPrimitive.Viewport className="h-full w-full rounded-[inherit]">
+        {children}
+      </ScrollAreaPrimitive.Viewport>
+      <ScrollBar />
+      <ScrollAreaPrimitive.Corner />
+    </ScrollAreaPrimitive.Root>
+  );
+}
+
+function ScrollBar({
+  className,
+  orientation = "vertical",
+  ...props
+}: ComponentPropsWithoutRef<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>) {
+  return (
+    <ScrollAreaPrimitive.ScrollAreaScrollbar
+      orientation={orientation}
+      className={cn(
+        "flex touch-none select-none transition-colors",
+        orientation === "vertical" && "h-full w-2.5 border-l border-l-transparent p-[1px]",
+        orientation === "horizontal" && "h-2.5 flex-col border-t border-t-transparent p-[1px]",
+        className,
+      )}
+      {...props}
+    >
+      <ScrollAreaPrimitive.ScrollAreaThumb className="relative flex-1 rounded-full bg-border" />
+    </ScrollAreaPrimitive.ScrollAreaScrollbar>
+  );
+}
+
+export { ScrollArea, ScrollBar };

packages/workflow-dashboard/src/components/ui/select.tsx

@@ -0,0 +1,148 @@
+import * as SelectPrimitive from "@radix-ui/react-select";
+import { Check, ChevronDown, ChevronUp } from "lucide-react";
+import type { ComponentPropsWithoutRef } from "react";
+import { cn } from "../../lib/utils.ts";
+
+const Select = SelectPrimitive.Root;
+const SelectGroup = SelectPrimitive.Group;
+const SelectValue = SelectPrimitive.Value;
+
+function SelectTrigger({
+  className,
+  children,
+  ...props
+}: ComponentPropsWithoutRef<typeof SelectPrimitive.Trigger>) {
+  return (
+    <SelectPrimitive.Trigger
+      className={cn(
+        "flex h-9 w-full items-center justify-between whitespace-nowrap rounded-md border border-input bg-transparent px-3 py-2 text-sm shadow-sm ring-offset-background placeholder:text-muted-foreground focus:outline-none focus:ring-1 focus:ring-ring disabled:cursor-not-allowed disabled:opacity-50 [&>span]:line-clamp-1",
+        className,
+      )}
+      {...props}
+    >
+      {children}
+      <SelectPrimitive.Icon asChild>
+        <ChevronDown className="h-4 w-4 opacity-50" />
+      </SelectPrimitive.Icon>
+    </SelectPrimitive.Trigger>
+  );
+}
+
+function SelectScrollUpButton({
+  className,
+  ...props
+}: ComponentPropsWithoutRef<typeof SelectPrimitive.ScrollUpButton>) {
+  return (
+    <SelectPrimitive.ScrollUpButton
+      className={cn("flex cursor-default items-center justify-center py-1", className)}
+      {...props}
+    >
+      <ChevronUp className="h-4 w-4" />
+    </SelectPrimitive.ScrollUpButton>
+  );
+}
+
+function SelectScrollDownButton({
+  className,
+  ...props
+}: ComponentPropsWithoutRef<typeof SelectPrimitive.ScrollDownButton>) {
+  return (
+    <SelectPrimitive.ScrollDownButton
+      className={cn("flex cursor-default items-center justify-center py-1", className)}
+      {...props}
+    >
+      <ChevronDown className="h-4 w-4" />
+    </SelectPrimitive.ScrollDownButton>
+  );
+}
+
+function SelectContent({
+  className,
+  children,
+  position = "popper",
+  ...props
+}: ComponentPropsWithoutRef<typeof SelectPrimitive.Content>) {
+  return (
+    <SelectPrimitive.Portal>
+      <SelectPrimitive.Content
+        className={cn(
+          "relative z-50 max-h-96 min-w-[8rem] overflow-hidden rounded-md border border-border bg-popover text-popover-foreground shadow-md data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2",
+          position === "popper" &&
+            "data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1",
+          className,
+        )}
+        position={position}
+        {...props}
+      >
+        <SelectScrollUpButton />
+        <SelectPrimitive.Viewport
+          className={cn(
+            "p-1",
+            position === "popper" &&
+              "h-[var(--radix-select-trigger-height)] w-full min-w-[var(--radix-select-trigger-width)]",
+          )}
+        >
+          {children}
+        </SelectPrimitive.Viewport>
+        <SelectScrollDownButton />
+      </SelectPrimitive.Content>
+    </SelectPrimitive.Portal>
+  );
+}
+
+function SelectLabel({
+  className,
+  ...props
+}: ComponentPropsWithoutRef<typeof SelectPrimitive.Label>) {
+  return (
+    <SelectPrimitive.Label
+      className={cn("px-2 py-1.5 text-sm font-semibold", className)}
+      {...props}
+    />
+  );
+}
+
+function SelectItem({
+  className,
+  children,
+  ...props
+}: ComponentPropsWithoutRef<typeof SelectPrimitive.Item>) {
+  return (
+    <SelectPrimitive.Item
+      className={cn(
+        "relative flex w-full cursor-default select-none items-center rounded-sm py-1.5 pl-2 pr-8 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+        className,
+      )}
+      {...props}
+    >
+      <span className="absolute right-2 flex h-3.5 w-3.5 items-center justify-center">
+        <SelectPrimitive.ItemIndicator>
+          <Check className="h-4 w-4" />
+        </SelectPrimitive.ItemIndicator>
+      </span>
+      <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
+    </SelectPrimitive.Item>
+  );
+}
+
+function SelectSeparator({
+  className,
+  ...props
+}: ComponentPropsWithoutRef<typeof SelectPrimitive.Separator>) {
+  return (
+    <SelectPrimitive.Separator className={cn("-mx-1 my-1 h-px bg-muted", className)} {...props} />
+  );
+}
+
+export {
+  Select,
+  SelectContent,
+  SelectGroup,
+  SelectItem,
+  SelectLabel,
+  SelectScrollDownButton,
+  SelectScrollUpButton,
+  SelectSeparator,
+  SelectTrigger,
+  SelectValue,
+};

packages/workflow-dashboard/src/components/ui/separator.tsx

@@ -0,0 +1,25 @@
+import * as SeparatorPrimitive from "@radix-ui/react-separator";
+import type { ComponentPropsWithoutRef } from "react";
+import { cn } from "../../lib/utils.ts";
+
+function Separator({
+  className,
+  orientation = "horizontal",
+  decorative = true,
+  ...props
+}: ComponentPropsWithoutRef<typeof SeparatorPrimitive.Root>) {
+  return (
+    <SeparatorPrimitive.Root
+      decorative={decorative}
+      orientation={orientation}
+      className={cn(
+        "shrink-0 bg-border",
+        orientation === "horizontal" ? "h-[1px] w-full" : "h-full w-[1px]",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export { Separator };

packages/workflow-dashboard/src/components/ui/table.tsx

@@ -0,0 +1,69 @@
+import type { HTMLAttributes, TdHTMLAttributes, ThHTMLAttributes } from "react";
+import { cn } from "../../lib/utils.ts";
+
+function Table({ className, ...props }: HTMLAttributes<HTMLTableElement>) {
+  return (
+    <div className="relative w-full overflow-auto">
+      <table className={cn("w-full caption-bottom text-sm", className)} {...props} />
+    </div>
+  );
+}
+
+function TableHeader({ className, ...props }: HTMLAttributes<HTMLTableSectionElement>) {
+  return <thead className={cn("[&_tr]:border-b", className)} {...props} />;
+}
+
+function TableBody({ className, ...props }: HTMLAttributes<HTMLTableSectionElement>) {
+  return <tbody className={cn("[&_tr:last-child]:border-0", className)} {...props} />;
+}
+
+function TableFooter({ className, ...props }: HTMLAttributes<HTMLTableSectionElement>) {
+  return (
+    <tfoot
+      className={cn("border-t bg-muted/50 font-medium [&>tr]:last:border-b-0", className)}
+      {...props}
+    />
+  );
+}
+
+function TableRow({ className, ...props }: HTMLAttributes<HTMLTableRowElement>) {
+  return (
+    <tr
+      className={cn(
+        "border-b border-border transition-colors hover:bg-muted/50 data-[state=selected]:bg-muted",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function TableHead({ className, ...props }: ThHTMLAttributes<HTMLTableCellElement>) {
+  return (
+    <th
+      className={cn(
+        "h-10 px-2 text-left align-middle font-medium text-muted-foreground [&:has([role=checkbox])]:pr-0 [&>[role=checkbox]]:translate-y-[2px]",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function TableCell({ className, ...props }: TdHTMLAttributes<HTMLTableCellElement>) {
+  return (
+    <td
+      className={cn(
+        "p-2 align-middle [&:has([role=checkbox])]:pr-0 [&>[role=checkbox]]:translate-y-[2px]",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function TableCaption({ className, ...props }: HTMLAttributes<HTMLTableCaptionElement>) {
+  return <caption className={cn("mt-4 text-sm text-muted-foreground", className)} {...props} />;
+}
+
+export { Table, TableBody, TableCaption, TableCell, TableFooter, TableHead, TableHeader, TableRow };

packages/workflow-dashboard/src/components/ui/textarea.tsx

@@ -0,0 +1,16 @@
+import type { TextareaHTMLAttributes } from "react";
+import { cn } from "../../lib/utils.ts";
+
+function Textarea({ className, ...props }: TextareaHTMLAttributes<HTMLTextAreaElement>) {
+  return (
+    <textarea
+      className={cn(
+        "flex min-h-[60px] w-full rounded-md border border-input bg-transparent px-3 py-2 text-sm shadow-sm placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export { Textarea };

packages/workflow-dashboard/src/components/ui/tooltip.tsx

@@ -0,0 +1,28 @@
+import * as TooltipPrimitive from "@radix-ui/react-tooltip";
+import type { ComponentPropsWithoutRef } from "react";
+import { cn } from "../../lib/utils.ts";
+
+const TooltipProvider = TooltipPrimitive.Provider;
+const Tooltip = TooltipPrimitive.Root;
+const TooltipTrigger = TooltipPrimitive.Trigger;
+
+function TooltipContent({
+  className,
+  sideOffset = 4,
+  ...props
+}: ComponentPropsWithoutRef<typeof TooltipPrimitive.Content>) {
+  return (
+    <TooltipPrimitive.Portal>
+      <TooltipPrimitive.Content
+        sideOffset={sideOffset}
+        className={cn(
+          "z-50 overflow-hidden rounded-md bg-primary px-3 py-1.5 text-xs text-primary-foreground animate-in fade-in-0 zoom-in-95 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2",
+          className,
+        )}
+        {...props}
+      />
+    </TooltipPrimitive.Portal>
+  );
+}
+
+export { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger };

packages/workflow-dashboard/src/components/workflow-detail.tsx

@@ -1,22 +1,50 @@
+import {
+  AlertCircle,
+  ArrowLeft,
+  ChevronDown,
+  GitBranch,
+  Hash,
+  Layers,
+  Loader2,
+  User,
+} from "lucide-react";
 import { useMemo, useRef, useState } from "react";
+import { useNavigate, useParams } from "react-router";
 import type { WorkflowDetail as WorkflowDetailData, WorkflowRoleDescriptor } from "../api.ts";
 import { getWorkflowDetail } from "../api.ts";
 import { useFetch } from "../hooks.ts";
+import { cn } from "../lib/utils.ts";
 import { Markdown } from "./markdown.tsx";
+import { Button } from "./ui/button.tsx";
+import { Card } from "./ui/card.tsx";
+import { Collapsible, CollapsibleContent, CollapsibleTrigger } from "./ui/collapsible.tsx";
+import { ResizablePanel } from "./ui/resizable-panel.tsx";
+import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "./ui/table.tsx";
 import { type NodeState, WorkflowGraph } from "./workflow-graph/index.ts";
 
-type Props = {
-  client: string;
-  workflowName: string;
-  onBack: () => void;
-};
+const ROLE_BORDER_COLORS = [
+  "border-l-blue-400/60",
+  "border-l-emerald-400/60",
+  "border-l-amber-400/60",
+  "border-l-violet-400/60",
+  "border-l-rose-400/60",
+  "border-l-cyan-400/60",
+  "border-l-orange-400/60",
+  "border-l-teal-400/60",
+];
+
+function roleBorderColor(name: string): string {
+  let hash = 0;
+  for (let i = 0; i < name.length; i++) {
+    hash = (hash * 31 + name.charCodeAt(i)) | 0;
+  }
+  return ROLE_BORDER_COLORS[Math.abs(hash) % ROLE_BORDER_COLORS.length];
+}
 
 function versionCount(detail: WorkflowDetailData): number {
   return detail.history.length + 1;
 }
 
-// ── Schema rendering helpers ────────────────────────────────────────
-
 type SchemaRow = {
   key: string;
   name: string;
@@ -47,7 +75,6 @@ function flattenSchema(
 ): SchemaRow[] {
   const rows: SchemaRow[] = [];
 
-  // Handle oneOf / discriminatedUnion
   const oneOf = schema.oneOf as Array<Record<string, unknown>> | undefined;
   if (Array.isArray(oneOf) && oneOf.length > 0) {
     for (let vi = 0; vi < oneOf.length; vi++) {
@@ -162,119 +189,93 @@ function flattenProperty(
   return rows;
 }
 
-// ── Components ──────────────────────────────────────────────────────
-
 function RoleCard({ roleName, role }: { roleName: string; role: WorkflowRoleDescriptor }) {
   const rows = flattenSchema(role.schema, 0, "", `${roleName}-`);
+  const [promptOpen, setPromptOpen] = useState(false);
+
   return (
-    <div
-      id={`role-${roleName}`}
-      className="rounded-lg border p-4"
-      style={{ borderColor: "var(--color-border)", background: "var(--color-surface)" }}
-    >
-      <h4 className="text-sm font-semibold font-mono mb-1" style={{ color: "var(--color-text)" }}>
+    <Card id={`role-${roleName}`} className={cn("p-4 border-l-4", roleBorderColor(roleName))}>
+      <h4 className="text-sm font-semibold font-mono mb-1 text-foreground flex items-center gap-1.5">
+        <User className="h-3.5 w-3.5 text-muted-foreground" />
         {roleName}
       </h4>
       {role.description !== "" && (
-        <p className="text-xs mb-3" style={{ color: "var(--color-text-muted)" }}>
-          {role.description}
-        </p>
+        <p className="text-xs mb-3 text-muted-foreground">{role.description}</p>
       )}
       {role.systemPrompt !== "" && (
-        <details className="mb-3">
-          <summary
-            className="text-[10px] uppercase tracking-wider font-medium cursor-pointer select-none"
-            style={{ color: "var(--color-text-muted)" }}
-          >
-            System Prompt
-          </summary>
-          <div
-            className="mt-1 p-2 rounded overflow-y-auto text-xs"
-            style={{
-              background: "var(--color-bg)",
-              border: "1px solid var(--color-border)",
-              maxHeight: "300px",
-            }}
-          >
-            <Markdown content={role.systemPrompt} />
-          </div>
-        </details>
+        <Collapsible open={promptOpen} onOpenChange={setPromptOpen} className="mb-3">
+          <CollapsibleTrigger asChild>
+            <Button
+              variant="ghost"
+              size="sm"
+              className="gap-1 h-7 px-2 text-[10px] uppercase tracking-wider text-muted-foreground bg-muted/50 rounded-md transition-all duration-200"
+            >
+              <ChevronDown
+                className={cn("h-3 w-3 transition-transform", promptOpen && "rotate-180")}
+              />
+              System Prompt
+            </Button>
+          </CollapsibleTrigger>
+          <CollapsibleContent>
+            <div className="mt-1 p-2 rounded-md overflow-y-auto text-xs bg-background border border-border max-h-[300px]">
+              <Markdown content={role.systemPrompt} />
+            </div>
+          </CollapsibleContent>
+        </Collapsible>
       )}
       {rows.length > 0 && (
         <div>
-          <p
-            className="text-[10px] uppercase tracking-wider mb-1 font-medium"
-            style={{ color: "var(--color-text-muted)" }}
-          >
+          <p className="text-[10px] uppercase tracking-wider mb-1 font-medium text-muted-foreground">
             Meta Schema
           </p>
-          <table className="w-full text-xs" style={{ borderCollapse: "collapse" }}>
-            <thead>
-              <tr style={{ borderBottom: "1px solid var(--color-border)" }}>
-                <th
-                  className="text-left py-1 pr-3 font-medium"
-                  style={{ color: "var(--color-text-muted)" }}
-                >
-                  Field
-                </th>
-                <th
-                  className="text-left py-1 pr-3 font-medium"
-                  style={{ color: "var(--color-text-muted)" }}
-                >
-                  Type
-                </th>
-                <th
-                  className="text-left py-1 font-medium"
-                  style={{ color: "var(--color-text-muted)" }}
-                >
-                  Description
-                </th>
-              </tr>
-            </thead>
-            <tbody>
+          <Table>
+            <TableHeader>
+              <TableRow>
+                <TableHead className="text-xs">Field</TableHead>
+                <TableHead className="text-xs">Type</TableHead>
+                <TableHead className="text-xs">Description</TableHead>
+              </TableRow>
+            </TableHeader>
+            <TableBody>
               {rows.map((r) => (
-                <tr
+                <TableRow
                   key={r.key}
-                  style={{
-                    borderBottom: r.isVariantHeader ? "none" : "1px solid var(--color-border)",
-                  }}
+                  className={cn(r.isVariantHeader ? "border-b-0" : "", "even:bg-muted/30")}
                 >
-                  <td
-                    className="py-1 pr-3 font-mono whitespace-pre"
-                    style={{
-                      color: r.isVariantHeader ? "var(--color-text-muted)" : "var(--color-accent)",
-                      fontStyle: r.isVariantHeader ? "italic" : "normal",
-                    }}
+                  <TableCell
+                    className={cn(
+                      "font-mono whitespace-pre text-xs",
+                      r.isVariantHeader ? "italic text-muted-foreground" : "text-foreground",
+                    )}
                   >
                     {r.name}
-                  </td>
-                  <td className="py-1 pr-3 font-mono" style={{ color: "var(--color-text-muted)" }}>
+                  </TableCell>
+                  <TableCell className="font-mono text-xs text-muted-foreground">
                     {r.type}
-                  </td>
-                  <td className="py-1" style={{ color: "var(--color-text)" }}>
+                  </TableCell>
+                  <TableCell className="text-xs">
                     {r.description || (r.isVariantHeader ? "" : "—")}
-                  </td>
-                </tr>
+                  </TableCell>
+                </TableRow>
               ))}
-            </tbody>
-          </table>
+            </TableBody>
+          </Table>
         </div>
       )}
       {rows.length === 0 && Object.keys(role.schema).length > 0 && (
-        <pre
-          className="text-[10px] font-mono p-2 rounded overflow-x-auto"
-          style={{ background: "var(--color-bg)", color: "var(--color-text-muted)" }}
-        >
+        <pre className="text-[10px] font-mono p-2 rounded-md overflow-x-auto bg-background text-muted-foreground">
           {JSON.stringify(role.schema, null, 2)}
         </pre>
       )}
-    </div>
+    </Card>
   );
 }
 
-// ── Main component ──────────────────────────────────────────────────
-
-export function WorkflowDetail({ client, workflowName, onBack }: Props) {
+export function WorkflowDetail() {
+  const params = useParams();
+  const navigate = useNavigate();
+  const client = params.client as string;
+  const workflowName = params.workflowName as string;
   const { status, data, error } = useFetch(
     () => getWorkflowDetail(client, workflowName),
     [client, workflowName],
@@ -314,44 +315,52 @@ export function WorkflowDetail({ client, workflowName, onBack }: Props) {
   return (
     <div>
       <div className="flex items-center justify-between mb-4">
-        <button
-          type="button"
-          onClick={onBack}
-          className="text-sm hover:underline"
-          style={{ color: "var(--color-accent)" }}
+        <Button
+          variant="ghost"
+          className="gap-1.5 px-2 text-muted-foreground hover:text-foreground transition-all duration-200"
+          onClick={() => navigate(`/${client}/workflows`)}
         >
-          ← Back to workflows
-        </button>
+          <ArrowLeft className="h-4 w-4" />
+          Back to workflows
+        </Button>
       </div>
 
-      <h2 className="text-xl font-semibold mb-4 font-mono">{workflowName}</h2>
+      <h2 className="text-xl font-semibold mb-4 font-mono tracking-tight">{workflowName}</h2>
 
-      {status === "loading" && <p style={{ color: "var(--color-text-muted)" }}>Loading...</p>}
-      {status === "error" && <p style={{ color: "var(--color-error)" }}>Error: {error}</p>}
+      {status === "loading" && (
+        <div className="flex items-center justify-center gap-2 py-12 text-muted-foreground">
+          <Loader2 className="h-5 w-5 animate-spin" />
+          <span>Loading workflow...</span>
+        </div>
+      )}
+      {status === "error" && (
+        <div className="flex items-center justify-center gap-2 py-12 text-destructive">
+          <AlertCircle className="h-5 w-5" />
+          <span>Error: {error}</span>
+        </div>
+      )}
 
       {detail !== null && (
         <div className="flex gap-4" style={{ minHeight: "calc(100vh - 160px)" }}>
-          {/* Left: fixed graph sidebar */}
           {hasGraph && (
-            <div
-              className="shrink-0"
+            <ResizablePanel
+              defaultWidth={360}
+              minWidth={240}
+              maxWidth={560}
+              className={null}
               style={{
-                width: 280,
                 position: "sticky",
                 top: 16,
                 height: "calc(100vh - 160px)",
                 alignSelf: "flex-start",
               }}
             >
-              <div
-                className="rounded-lg border h-full flex flex-col overflow-hidden"
-                style={{ borderColor: "var(--color-border)", background: "var(--color-surface)" }}
-              >
-                <div
-                  className="flex items-center justify-between px-3 py-2 text-xs"
-                  style={{ color: "var(--color-text-muted)" }}
-                >
-                  <span className="font-mono">Workflow graph</span>
+              <Card className="h-full flex flex-col overflow-hidden">
+                <div className="flex items-center justify-between px-3 py-2 text-xs text-muted-foreground bg-muted/50">
+                  <span className="font-mono flex items-center gap-1.5">
+                    <Layers className="h-3.5 w-3.5" />
+                    Workflow graph
+                  </span>
                   <span>
                     {edgeCount} edge{edgeCount === 1 ? "" : "s"}
                   </span>
@@ -364,52 +373,44 @@ export function WorkflowDetail({ client, workflowName, onBack }: Props) {
                     onNodeClick={handleGraphNodeClick}
                   />
                 </div>
-              </div>
-            </div>
+              </Card>
+            </ResizablePanel>
           )}
 
-          {/* Right: scrollable content */}
           <div className="flex-1 min-w-0 space-y-4">
-            {/* Workflow overview */}
-            <div
-              className="rounded-lg border p-4"
-              style={{ borderColor: "var(--color-border)", background: "var(--color-surface)" }}
-            >
-              <p
-                className="text-sm whitespace-pre-wrap mb-3"
-                style={{ color: "var(--color-text)" }}
-              >
-                {descriptor !== null && descriptor.description !== ""
-                  ? descriptor.description
-                  : "—"}
-              </p>
-              <div className="flex gap-4 text-xs" style={{ color: "var(--color-text-muted)" }}>
-                <span>
-                  Hash:{" "}
-                  <code className="font-mono" style={{ color: "var(--color-accent)" }}>
-                    {detail.hash}
-                  </code>
+            <Card className="p-4">
+              <div className="rounded-md bg-muted/30 px-3 py-2 mb-3">
+                <p className="text-sm whitespace-pre-wrap text-foreground">
+                  {descriptor !== null && descriptor.description !== ""
+                    ? descriptor.description
+                    : "—"}
+                </p>
+              </div>
+              <div className="flex flex-wrap gap-3 text-xs text-muted-foreground">
+                <span className="inline-flex items-center gap-1 rounded-full bg-muted px-2 py-0.5 text-xs font-mono">
+                  <Hash className="h-3 w-3" />
+                  <span className="text-foreground">{detail.hash}</span>
                 </span>
-                <span>
+                <span className="inline-flex items-center gap-1 rounded-full bg-muted px-2 py-0.5 text-xs">
+                  <GitBranch className="h-3 w-3" />
                   {versionCount(detail)} version{versionCount(detail) !== 1 ? "s" : ""}
                 </span>
                 {roleEntries.length > 0 && (
-                  <span>
+                  <span className="inline-flex items-center gap-1 rounded-full bg-muted px-2 py-0.5 text-xs">
+                    <User className="h-3 w-3" />
                     {roleEntries.length} role{roleEntries.length !== 1 ? "s" : ""}
                   </span>
                 )}
               </div>
-            </div>
+            </Card>
 
-            {/* Role cards */}
             {roleEntries.map(([name, role]) => (
               <div
                 key={name}
-                style={{
-                  transition: "box-shadow 0.3s",
-                  boxShadow: highlightedRole === name ? "0 0 0 2px var(--color-accent)" : "none",
-                  borderRadius: 8,
-                }}
+                className={cn(
+                  "rounded-lg transition-shadow duration-300",
+                  highlightedRole === name && "ring-2 ring-ring",
+                )}
               >
                 <RoleCard roleName={name} role={role} />
               </div>

packages/workflow-dashboard/src/components/workflow-graph/condition-edge.tsx

@@ -91,7 +91,7 @@ export function ConditionEdge(props: EdgeProps) {
     defaultLabelY = result[2];
   }
 
-  const stroke = "var(--color-accent)";
+  const stroke = "hsl(var(--ring))";
   const label = isFallback ? "" : (edgeData?.condition ?? "");
 
   // Use pre-computed label position if available, otherwise fall back to default
@@ -107,9 +107,9 @@ export function ConditionEdge(props: EdgeProps) {
             className="absolute px-1.5 py-0.5 rounded text-[10px] font-mono pointer-events-auto"
             style={{
               transform: `translate(-50%, -50%) translate(${labelX}px, ${labelY}px)`,
-              background: "var(--color-surface)",
-              border: "1px solid var(--color-border)",
-              color: "var(--color-text)",
+              background: "hsl(var(--card))",
+              border: "1px solid hsl(var(--border))",
+              color: "hsl(var(--foreground))",
               whiteSpace: "nowrap",
               zIndex: 10,
             }}

packages/workflow-dashboard/src/components/workflow-graph/role-node.tsx

@@ -1,29 +1,23 @@
 import { Handle, type NodeProps, Position } from "@xyflow/react";
+import { Check, Circle } from "lucide-react";
 import type { RoleNodeData } from "./types.ts";
 
 function borderColor(state: RoleNodeData["state"]): string {
   switch (state) {
     case "completed":
-      return "var(--color-success)";
+      return "hsl(var(--success))";
     case "active":
-      return "var(--color-accent)";
+      return "hsl(var(--ring))";
     default:
-      return "var(--color-border)";
+      return "hsl(var(--border))";
   }
 }
 
-function stateIcon(state: RoleNodeData["state"]): string | null {
-  if (state === "completed") return "✓";
-  if (state === "active") return "●";
-  return null;
-}
-
 export function RoleNode(props: NodeProps) {
   const data = props.data as RoleNodeData;
-  const icon = stateIcon(data.state);
   const isActive = data.state === "active";
   const handleStyle = {
-    background: "var(--color-text-muted)",
+    background: "hsl(var(--muted-foreground))",
     width: 6,
     height: 6,
     border: "none",
@@ -35,9 +29,9 @@ export function RoleNode(props: NodeProps) {
       style={{
         width: 180,
         height: 60,
-        background: "var(--color-surface)",
+        background: "hsl(var(--card))",
         borderColor: borderColor(data.state),
-        color: "var(--color-text)",
+        color: "hsl(var(--foreground))",
         display: "flex",
         flexDirection: "column",
         justifyContent: "center",
@@ -81,19 +75,15 @@ export function RoleNode(props: NodeProps) {
         isConnectable={false}
       />
       <div className="flex items-center gap-1.5 font-mono">
-        {icon !== null && (
-          <span
-            style={{
-              color: data.state === "active" ? "var(--color-accent)" : "var(--color-success)",
-            }}
-          >
-            {icon}
-          </span>
-        )}
+        {data.state === "completed" && <Check className="h-3 w-3 text-success" />}
+        {data.state === "active" && <Circle className="h-3 w-3 fill-current text-ring" />}
         <span className="truncate">{data.label}</span>
       </div>
       {data.description !== "" && (
-        <div className="text-[10px] truncate mt-0.5" style={{ color: "var(--color-text-muted)" }}>
+        <div
+          className="text-[10px] truncate mt-0.5"
+          style={{ color: "hsl(var(--muted-foreground))" }}
+        >
           {data.description}
         </div>
       )}

packages/workflow-dashboard/src/components/workflow-graph/terminal-node.tsx

@@ -1,21 +1,22 @@
 import { Handle, type NodeProps, Position } from "@xyflow/react";
+import { Play, Square } from "lucide-react";
 import type { TerminalNodeData } from "./types.ts";
 
 function borderColor(state: TerminalNodeData["state"]): string {
   switch (state) {
     case "completed":
-      return "var(--color-success)";
+      return "hsl(var(--success))";
     case "active":
-      return "var(--color-accent)";
+      return "hsl(var(--ring))";
     default:
-      return "var(--color-border)";
+      return "hsl(var(--border))";
   }
 }
 
 function bgColor(state: TerminalNodeData["state"]): string {
-  if (state === "completed") return "var(--color-success)";
-  if (state === "active") return "var(--color-accent)";
-  return "var(--color-surface)";
+  if (state === "completed") return "hsl(var(--success))";
+  if (state === "active") return "hsl(var(--ring))";
+  return "hsl(var(--card))";
 }
 
 export function TerminalNode(props: NodeProps) {
@@ -23,7 +24,7 @@ export function TerminalNode(props: NodeProps) {
   const isStart = data.kind === "start";
   const isActive = data.state === "active";
   const handleStyle = {
-    background: "var(--color-text-muted)",
+    background: "hsl(var(--muted-foreground))",
     width: 6,
     height: 6,
     border: "none",
@@ -31,13 +32,16 @@ export function TerminalNode(props: NodeProps) {
 
   return (
     <div
-      className={`rounded-full border-2 flex items-center justify-center text-[10px] font-bold ${isActive ? "wf-node-pulse" : ""} ${data.state !== "default" ? "cursor-pointer" : ""}`}
+      className={`rounded-full border-2 flex items-center justify-center ${isActive ? "wf-node-pulse" : ""} ${data.state !== "default" ? "cursor-pointer" : ""}`}
       style={{
         width: 40,
         height: 40,
         background: bgColor(data.state),
         borderColor: borderColor(data.state),
-        color: data.state === "default" ? "var(--color-text-muted)" : "var(--color-bg)",
+        color:
+          data.state === "default"
+            ? "hsl(var(--muted-foreground))"
+            : "hsl(var(--primary-foreground))",
       }}
       title={isStart ? "Start" : "End"}
     >
@@ -74,7 +78,7 @@ export function TerminalNode(props: NodeProps) {
           />
         </>
       )}
-      {isStart ? "▶" : "■"}
+      {isStart ? <Play className="h-3 w-3" /> : <Square className="h-3 w-3" />}
     </div>
   );
 }

packages/workflow-dashboard/src/components/workflow-graph/use-layout.ts

@@ -36,6 +36,128 @@ function edgeKey(e: WorkflowGraphEdge): string {
   return `${e.from}->${e.to}::${e.condition}`;
 }
 
+function collectNodeIds(edges: readonly WorkflowGraphEdge[]): Set<string> {
+  const ids = new Set<string>();
+  for (const e of edges) {
+    ids.add(e.from);
+    ids.add(e.to);
+  }
+  return ids;
+}
+
+function detectBackEdges(ids: Set<string>, edges: readonly WorkflowGraphEdge[]): Set<string> {
+  const WHITE = 0;
+  const GRAY = 1;
+  const BLACK = 2;
+  const backEdges = new Set<string>();
+  const color = new Map<string, number>();
+  for (const id of ids) color.set(id, WHITE);
+
+  const fullAdj = new Map<string, string[]>();
+  for (const id of ids) fullAdj.set(id, []);
+  for (const e of edges) {
+    if (e.from !== e.to) fullAdj.get(e.from)?.push(e.to);
+  }
+
+  function dfs(u: string): void {
+    color.set(u, GRAY);
+    for (const v of fullAdj.get(u) ?? []) {
+      const c = color.get(v) ?? WHITE;
+      if (c === GRAY) {
+        backEdges.add(`${u}->${v}`);
+      } else if (c === WHITE) {
+        dfs(v);
+      }
+    }
+    color.set(u, BLACK);
+  }
+
+  if (ids.has(START_ID)) dfs(START_ID);
+  for (const id of ids) {
+    if ((color.get(id) ?? WHITE) === WHITE) dfs(id);
+  }
+  return backEdges;
+}
+
+function buildDagAdjacency(
+  ids: Set<string>,
+  edges: readonly WorkflowGraphEdge[],
+  backEdges: Set<string>,
+): Map<string, string[]> {
+  const adj = new Map<string, string[]>();
+  for (const id of ids) adj.set(id, []);
+  for (const e of edges) {
+    if (e.from === e.to) continue;
+    if (backEdges.has(`${e.from}->${e.to}`)) continue;
+    adj.get(e.from)?.push(e.to);
+  }
+  return adj;
+}
+
+function computeInDegrees(ids: Set<string>, adj: Map<string, string[]>): Map<string, number> {
+  const inDegree = new Map<string, number>();
+  for (const id of ids) inDegree.set(id, 0);
+  for (const id of ids) {
+    for (const next of adj.get(id) ?? []) {
+      inDegree.set(next, (inDegree.get(next) ?? 0) + 1);
+    }
+  }
+  return inDegree;
+}
+
+function relaxLongestPathNeighbors(
+  cur: string,
+  curRank: number,
+  adj: Map<string, string[]>,
+  rank: Map<string, number>,
+  inDegree: Map<string, number>,
+  queue: string[],
+): void {
+  for (const next of adj.get(cur) ?? []) {
+    const prevRank = rank.get(next) ?? 0;
+    if (curRank + 1 > prevRank) rank.set(next, curRank + 1);
+    const deg = (inDegree.get(next) ?? 1) - 1;
+    inDegree.set(next, deg);
+    if (deg === 0) queue.push(next);
+  }
+}
+
+function longestPathRanks(ids: Set<string>, adj: Map<string, string[]>): Map<string, number> {
+  const inDegree = computeInDegrees(ids, adj);
+  const rank = new Map<string, number>();
+  const queue: string[] = [];
+  for (const id of ids) {
+    if ((inDegree.get(id) ?? 0) === 0) {
+      queue.push(id);
+      rank.set(id, 0);
+    }
+  }
+
+  while (queue.length > 0) {
+    const cur = queue.shift();
+    if (cur === undefined) break;
+    relaxLongestPathNeighbors(cur, rank.get(cur) ?? 0, adj, rank, inDegree, queue);
+  }
+  return rank;
+}
+
+function compareLayerNodes(a: string, b: string): number {
+  if (a === START_ID) return -1;
+  if (b === START_ID) return 1;
+  if (a === END_ID) return 1;
+  if (b === END_ID) return -1;
+  return a.localeCompare(b);
+}
+
+function ranksToLayers(rank: Map<string, number>): string[][] {
+  const maxRank = Math.max(...[...rank.values()], 0);
+  const layers: string[][] = [];
+  for (let r = 0; r <= maxRank; r++) layers.push([]);
+  for (const [id, r] of rank) layers[r].push(id);
+  for (const layer of layers) layer.sort(compareLayerNodes);
+  return layers.filter((l) => l.length > 0);
+}
+
 // ── Strategy 1: Longest-path layering (Sugiyama step 1) ─────────────
 
 /**
@@ -49,123 +171,11 @@ function edgeKey(e: WorkflowGraphEdge): string {
  * on the resulting DAG, then the removed edges become feedback edges.
  */
 function computeLayersLongestPath(edges: readonly WorkflowGraphEdge[]): string[][] {
-  // Collect all node IDs
-  const ids = new Set<string>();
-  for (const e of edges) {
-    ids.add(e.from);
-    ids.add(e.to);
-  }
-
-  // Build adjacency (excluding self-loops)
-  const adj = new Map<string, string[]>();
-  const inEdges = new Map<string, string[]>();
-  for (const id of ids) {
-    adj.set(id, []);
-    inEdges.set(id, []);
-  }
-  // Detect back-edges via DFS to break cycles
-  const backEdges = new Set<string>();
-  {
-    const WHITE = 0;
-    const GRAY = 1;
-    const BLACK = 2;
-    const color = new Map<string, number>();
-    for (const id of ids) color.set(id, WHITE);
-
-    // Temporary full adjacency for cycle detection
-    const fullAdj = new Map<string, string[]>();
-    for (const id of ids) fullAdj.set(id, []);
-    for (const e of edges) {
-      if (e.from !== e.to) fullAdj.get(e.from)?.push(e.to);
-    }
-
-    function dfs(u: string): void {
-      color.set(u, GRAY);
-      for (const v of fullAdj.get(u) ?? []) {
-        const c = color.get(v) ?? WHITE;
-        if (c === GRAY) {
-          // Back-edge: u -> v where v is an ancestor
-          backEdges.add(`${u}->${v}`);
-        } else if (c === WHITE) {
-          dfs(v);
-        }
-      }
-      color.set(u, BLACK);
-    }
-
-    // Start DFS from __start__ first for determinism
-    if (ids.has(START_ID)) dfs(START_ID);
-    for (const id of ids) {
-      if ((color.get(id) ?? WHITE) === WHITE) dfs(id);
-    }
-  }
-
-  // Build DAG adjacency (without back-edges)
-  for (const e of edges) {
-    if (e.from === e.to) continue;
-    if (backEdges.has(`${e.from}->${e.to}`)) continue;
-    adj.get(e.from)?.push(e.to);
-    inEdges.get(e.to)?.push(e.from);
-  }
-
-  // Longest-path ranking via topological order (Kahn's algorithm)
-  const inDegree = new Map<string, number>();
-  for (const id of ids) inDegree.set(id, 0);
-  for (const id of ids) {
-    for (const next of adj.get(id) ?? []) {
-      inDegree.set(next, (inDegree.get(next) ?? 0) + 1);
-    }
-  }
-
-  const rank = new Map<string, number>();
-  const queue: string[] = [];
-  for (const id of ids) {
-    if ((inDegree.get(id) ?? 0) === 0) {
-      queue.push(id);
-      rank.set(id, 0);
-    }
-  }
-
-  while (queue.length > 0) {
-    const cur = queue.shift()!;
-    const curRank = rank.get(cur) ?? 0;
-    for (const next of adj.get(cur) ?? []) {
-      // Longest path: take max
-      const prevRank = rank.get(next) ?? 0;
-      if (curRank + 1 > prevRank) {
-        rank.set(next, curRank + 1);
-      }
-      const deg = (inDegree.get(next) ?? 1) - 1;
-      inDegree.set(next, deg);
-      if (deg === 0) {
-        queue.push(next);
-      }
-    }
-  }
-
-  // Group by rank
-  const maxRank = Math.max(...[...rank.values()], 0);
-  const layers: string[][] = [];
-  for (let r = 0; r <= maxRank; r++) {
-    layers.push([]);
-  }
-  for (const [id, r] of rank) {
-    layers[r].push(id);
-  }
-
-  // Sort within layers alphabetically for stability, but __start__ first, __end__ last
-  for (const layer of layers) {
-    layer.sort((a, b) => {
-      if (a === START_ID) return -1;
-      if (b === START_ID) return 1;
-      if (a === END_ID) return 1;
-      if (b === END_ID) return -1;
-      return a.localeCompare(b);
-    });
-  }
-
-  // Remove empty layers
-  return layers.filter((l) => l.length > 0);
+  const ids = collectNodeIds(edges);
+  const backEdges = detectBackEdges(ids, edges);
+  const adj = buildDagAdjacency(ids, edges, backEdges);
+  const rank = longestPathRanks(ids, adj);
+  return ranksToLayers(rank);
 }
 
 // ── Shared helpers ──────────────────────────────────────────────────
@@ -201,132 +211,164 @@ function buildTerminalNode(
   };
 }
 
-// ── Longest-path layout (uses same edge-building as before) ─────────
+type EdgeLayoutContext = {
+  rank: Map<string, number>;
+  nodePositions: Map<string, { x: number; y: number; w: number; h: number }>;
+  centerX: number;
+  routedCountByTarget: Map<string, number>;
+};
 
-// biome-ignore lint/complexity/noExcessiveCognitiveComplexity: layout logic is inherently branchy
-function computeLayoutLongestPath(input: LayoutInput): LayoutResult {
-  const layers = computeLayersLongestPath(input.edges);
+function computeEdgeLabelPosition(
+  e: WorkflowGraphEdge,
+  ctx: EdgeLayoutContext,
+  isFeedback: boolean,
+  isSkipForward: boolean,
+  isSelfLoop: boolean,
+): { labelX: number | null; labelY: number | null; feedbackSide: "right" | "left" | null } {
+  const sourcePos = ctx.nodePositions.get(e.from);
+  const targetPos = ctx.nodePositions.get(e.to);
+  if (sourcePos === undefined || targetPos === undefined) {
+    return { labelX: null, labelY: null, feedbackSide: null };
+  }
 
-  // Flatten layers into a rank map (layer index = rank)
+  if (isFeedback || isSkipForward) {
+    const count = ctx.routedCountByTarget.get(e.to) ?? 0;
+    ctx.routedCountByTarget.set(e.to, count + 1);
+    const feedbackSide = count % 2 === 0 ? "right" : "left";
+    const offsetX =
+      feedbackSide === "right"
+        ? ctx.centerX + ROLE_NODE_WIDTH / 2 + FEEDBACK_OFFSET_X
+        : ctx.centerX - ROLE_NODE_WIDTH / 2 - FEEDBACK_OFFSET_X;
+    const midY = (sourcePos.y + sourcePos.h / 2 + targetPos.y + targetPos.h / 2) / 2;
+    return { labelX: offsetX, labelY: midY, feedbackSide };
+  }
+
+  if (isSelfLoop) {
+    return { labelX: null, labelY: null, feedbackSide: null };
+  }
+
+  const midY = (sourcePos.y + sourcePos.h + targetPos.y) / 2;
+  return { labelX: ctx.centerX, labelY: midY, feedbackSide: null };
+}
+
+function buildConditionEdge(e: WorkflowGraphEdge, ctx: EdgeLayoutContext): Edge {
+  const isFallback = e.condition === "FALLBACK";
+  const isSelfLoop = e.from === e.to;
+  const sourceRank = ctx.rank.get(e.from) ?? 0;
+  const targetRank = ctx.rank.get(e.to) ?? 0;
+  const isFeedback = !isSelfLoop && targetRank <= sourceRank;
+  const isSkipForward = !isSelfLoop && !isFeedback && targetRank - sourceRank > 1;
+  const routed = isFeedback || isSkipForward;
+
+  const { labelX, labelY, feedbackSide } = computeEdgeLabelPosition(
+    e,
+    ctx,
+    isFeedback,
+    isSkipForward,
+    isSelfLoop,
+  );
+
+  return {
+    id: edgeKey(e),
+    source: e.from,
+    target: e.to,
+    sourceHandle: routed ? (feedbackSide === "left" ? "left-out" : "right-out") : "bottom-out",
+    targetHandle: routed ? (feedbackSide === "left" ? "left-in" : "right-in") : "top-in",
+    type: "condition",
+    data: {
+      condition: e.condition,
+      conditionDescription: e.conditionDescription,
+      isFallback,
+      isFeedback: routed,
+      isSelfLoop,
+      feedbackSide,
+      labelX,
+      labelY,
+    },
+  };
+}
+
+const LAYER_H_GAP = 40;
+
+type NodePosition = { x: number; y: number; w: number; h: number };
+
+function layerIndexRank(layers: string[][]): Map<string, number> {
   const rank = new Map<string, number>();
   for (let i = 0; i < layers.length; i++) {
-    for (const id of layers[i]) {
-      rank.set(id, i);
-    }
+    for (const id of layers[i]) rank.set(id, i);
   }
+  return rank;
+}
 
-  // Horizontal gap between nodes in the same layer
-  const H_GAP = 40;
-
-  // Position nodes: each layer is a horizontal row
-  const nodePositions = new Map<string, { x: number; y: number; w: number; h: number }>();
-
-  // Find max layer width for centering
-  const layerWidths: number[] = [];
-  for (const layer of layers) {
+function computeLayerWidths(layers: string[][], hGap: number): number[] {
+  return layers.map((layer) => {
     let w = 0;
-    for (const id of layer) {
-      w += nodeSize(id).width;
-    }
-    w += (layer.length - 1) * H_GAP;
-    layerWidths.push(w);
-  }
-  const maxLayerWidth = Math.max(...layerWidths, ROLE_NODE_WIDTH);
-  const centerX = maxLayerWidth / 2;
+    for (const id of layer) w += nodeSize(id).width;
+    return w + (layer.length - 1) * hGap;
+  });
+}
 
+function layoutNodePositions(
+  layers: string[][],
+  layerWidths: number[],
+  centerX: number,
+  hGap: number,
+): Map<string, NodePosition> {
+  const nodePositions = new Map<string, NodePosition>();
   let y = 0;
   for (let li = 0; li < layers.length; li++) {
     const layer = layers[li];
-    const totalWidth = layerWidths[li];
-    let x = centerX - totalWidth / 2;
+    let x = centerX - layerWidths[li] / 2;
     let maxH = 0;
     for (const id of layer) {
       const size = nodeSize(id);
       nodePositions.set(id, { x, y, w: size.width, h: size.height });
-      x += size.width + H_GAP;
+      x += size.width + hGap;
       if (size.height > maxH) maxH = size.height;
     }
     y += maxH + LAYER_GAP;
   }
+  return nodePositions;
+}
 
-  // Build nodes
+function buildLayoutNodes(
+  layers: string[][],
+  nodePositions: Map<string, NodePosition>,
+  input: LayoutInput,
+): Node[] {
   const nodes: Node[] = [];
   for (const layer of layers) {
     for (const id of layer) {
       const pos = nodePositions.get(id);
       if (pos === undefined) continue;
       const state = input.nodeStates.get(id) ?? "default";
+      const xy = { x: pos.x, y: pos.y };
       if (id === START_ID || id === END_ID) {
-        nodes.push(buildTerminalNode(id, { x: pos.x, y: pos.y }, state));
+        nodes.push(buildTerminalNode(id, xy, state));
       } else {
-        nodes.push(buildRoleNode(id, { x: pos.x, y: pos.y }, input.roles, state));
+        nodes.push(buildRoleNode(id, xy, input.roles, state));
       }
     }
   }
+  return nodes;
+}
 
-  // Build edges with label positions
-  const routedCountByTarget = new Map<string, number>();
-  const edges: Edge[] = input.edges.map((e) => {
-    const isFallback = e.condition === "FALLBACK";
-    const isSelfLoop = e.from === e.to;
-    const sourceRank = rank.get(e.from) ?? 0;
-    const targetRank = rank.get(e.to) ?? 0;
-    const isFeedback = !isSelfLoop && targetRank <= sourceRank;
-    const isSkipForward = !isSelfLoop && !isFeedback && targetRank - sourceRank > 1;
-
-    const sourcePos = nodePositions.get(e.from);
-    const targetPos = nodePositions.get(e.to);
-
-    let labelX: number | null = null;
-    let labelY: number | null = null;
-    let feedbackSide: "right" | "left" | null = null;
-
-    if (sourcePos !== undefined && targetPos !== undefined) {
-      if (isFeedback || isSkipForward) {
-        const count = routedCountByTarget.get(e.to) ?? 0;
-        routedCountByTarget.set(e.to, count + 1);
-        feedbackSide = count % 2 === 0 ? "right" : "left";
-        const offsetX =
-          feedbackSide === "right"
-            ? centerX + ROLE_NODE_WIDTH / 2 + FEEDBACK_OFFSET_X
-            : centerX - ROLE_NODE_WIDTH / 2 - FEEDBACK_OFFSET_X;
-        const midY = (sourcePos.y + sourcePos.h / 2 + targetPos.y + targetPos.h / 2) / 2;
-        labelX = offsetX;
-        labelY = midY;
-      } else if (!isSelfLoop) {
-        const midX = centerX;
-        const midY = (sourcePos.y + sourcePos.h + targetPos.y) / 2;
-        labelX = midX;
-        labelY = midY;
-      }
-    }
-
-    return {
-      id: edgeKey(e),
-      source: e.from,
-      target: e.to,
-      sourceHandle:
-        isFeedback || isSkipForward
-          ? feedbackSide === "left"
-            ? "left-out"
-            : "right-out"
-          : "bottom-out",
-      targetHandle:
-        isFeedback || isSkipForward ? (feedbackSide === "left" ? "left-in" : "right-in") : "top-in",
-      type: "condition",
-      data: {
-        condition: e.condition,
-        conditionDescription: e.conditionDescription,
-        isFallback,
-        isFeedback: isFeedback || isSkipForward,
-        isSelfLoop,
-        feedbackSide,
-        labelX,
-        labelY,
-      },
-    };
-  });
+// ── Longest-path layout (uses same edge-building as before) ─────────
 
+function computeLayoutLongestPath(input: LayoutInput): LayoutResult {
+  const layers = computeLayersLongestPath(input.edges);
+  const rank = layerIndexRank(layers);
+  const layerWidths = computeLayerWidths(layers, LAYER_H_GAP);
+  const centerX = Math.max(...layerWidths, ROLE_NODE_WIDTH) / 2;
+  const nodePositions = layoutNodePositions(layers, layerWidths, centerX, LAYER_H_GAP);
+  const nodes = buildLayoutNodes(layers, nodePositions, input);
+  const edgeCtx: EdgeLayoutContext = {
+    rank,
+    nodePositions,
+    centerX,
+    routedCountByTarget: new Map<string, number>(),
+  };
+  const edges: Edge[] = input.edges.map((e) => buildConditionEdge(e, edgeCtx));
   return { nodes, edges };
 }
 

packages/workflow-dashboard/src/components/workflow-graph/workflow-graph.tsx

@@ -3,13 +3,14 @@ import {
   type EdgeTypes,
   MarkerType,
   type Node,
+  type NodeMouseHandler,
   type NodeTypes,
-  type OnNodeClick,
   ReactFlow,
 } from "@xyflow/react";
 import "@xyflow/react/dist/style.css";
 import { useMemo } from "react";
 import type { WorkflowGraph as WorkflowGraphData } from "../../api.ts";
+import { useTheme } from "../../hooks/use-theme.tsx";
 import { ConditionEdge } from "./condition-edge.tsx";
 import { RoleNode } from "./role-node.tsx";
 import { TerminalNode } from "./terminal-node.tsx";
@@ -39,9 +40,12 @@ function handleNodeClick(onNodeClick: (nodeId: string) => void, node: Node): voi
 
 export function WorkflowGraph({ graph, roles, nodeStates, onNodeClick }: Props) {
   const layout = useLayout({ edges: graph.edges, roles, nodeStates });
+  const { theme } = useTheme();
 
-  const onNodeClickHandler: OnNodeClick | undefined =
-    onNodeClick !== null ? (_e, node) => handleNodeClick(onNodeClick, node) : undefined;
+  const onNodeClickHandler: NodeMouseHandler | undefined =
+    onNodeClick !== null
+      ? (_e: React.MouseEvent, node: Node) => handleNodeClick(onNodeClick, node)
+      : undefined;
 
   const styledEdges = useMemo(
     () =>
@@ -51,7 +55,7 @@ export function WorkflowGraph({ graph, roles, nodeStates, onNodeClick }: Props)
           type: MarkerType.ArrowClosed,
           width: 14,
           height: 14,
-          color: "var(--color-text)",
+          color: "hsl(var(--foreground))",
         },
       })),
     [layout.edges],
@@ -72,10 +76,10 @@ export function WorkflowGraph({ graph, roles, nodeStates, onNodeClick }: Props)
       nodesConnectable={false}
       elementsSelectable={false}
       proOptions={{ hideAttribution: true }}
-      colorMode="dark"
-      style={{ background: "var(--color-bg)" }}
+      colorMode={theme}
+      style={{ background: "hsl(var(--background))" }}
     >
-      <Background color="var(--color-border)" gap={20} size={1} />
+      <Background color="hsl(var(--border))" gap={20} size={1} />
     </ReactFlow>
   );
 }