fix: cas has now returns exit 1 for non-existent hashes

Changed the exit behavior of 'uwf cas has' to return exit code 1 when
a hash doesn't exist, while preserving the JSON output {exists:false}.
This enables proper use in shell conditionals like 'if uwf cas has $HASH'.

Fixes #481

.workflows/solve-issue.yaml

@@ -137,8 +137,11 @@ roles:
       2. Commit with a descriptive message referencing the issue: `git commit -m "type: description\n\nFixes #N"`
       3. Push the branch: `git push -u origin <branch-name>`
          - If push hook fails: capture the error log in your output, mark hook_failed
-      4. On push success: create a PR via `tea pr create --title "..." --description "..."`
+      4. On push success: create a PR via `tea pr create --repo uncaged/workflow --title "..." --description "..."`
+         - The `--repo` flag is required to work in worktree directories (fixes #474 "path segment [0] is empty" error)
+         - If working on a different repo, extract owner/repo from: `git remote get-url origin | sed 's/.*[:/]\([^/]*\/[^.]*\).*/\1/'`
          - PR description must follow the project template: What / Why / Changes / Ref sections, with `Fixes #N` in Ref
+         - On tea failure: capture stderr/stdout, log the error clearly, include PR details (title, description, branch) for manual creation, and mark success=false
       5. After PR creation, clean up the worktree:
          - `cd ~/repos/workflow`
          - `git worktree remove ~/repos/workflow-worktrees/fix/<issue-number>-<slug>`

README.md

@@ -62,16 +62,16 @@ See [docs/architecture.md](docs/architecture.md) for the full design — three-p
 uwf setup
 
 # 2. Register a workflow from YAML
-uwf workflow put examples/solve-issue.yaml
+uwf workflow add examples/solve-issue.yaml
 
 # 3. Start a thread (creates head pointer; does not execute)
 uwf thread start solve-issue -p "Fix the login redirect bug"
 
 # 4. Execute steps (one at a time, until done)
-uwf thread step <thread-id>
+uwf thread exec <thread-id>
 ```
 
-Use `-c, --count <number>` on `thread step` to run multiple steps in one invocation. Override the agent with `--agent <cmd>`.
+Use `-c, --count <number>` on `thread exec` to run multiple steps in one invocation. Override the agent with `--agent <cmd>`.
 
 ## CLI Reference
 
@@ -79,8 +79,9 @@ Global options: `-V, --version`, `--format <json|yaml>`, `-h, --help`.
 
 | Group | Commands |
 |-------|----------|
-| **thread** | `start`, `step`, `show`, `list`, `kill`, `steps`, `read`, `fork`, `step-details` |
+| **thread** | `start`, `exec`, `show`, `list`, `stop`, `cancel`, `read` |
-| **workflow** | `put`, `show`, `list` |
+| **step** | `list`, `show`, `fork` |
+| **workflow** | `add`, `show`, `list` |
 | **cas** | `get`, `put`, `put-text`, `has`, `refs`, `walk`, `reindex`, `schema list`, `schema get` |
 | **setup** | Interactive or `--provider`, `--base-url`, `--api-key`, `--model`, `--agent` |
 | **skill** | `cli` — print markdown reference of all uwf commands |

examples/solve-issue.yaml

@@ -44,7 +44,8 @@ roles:
       2. cd to the repoPath before making any changes.
       3. Create a feature branch from the default branch.
       4. Implement the plan — write code, tests, and ensure existing tests pass.
-      5. Commit your changes with a descriptive message referencing the issue.
+      5. Run the project's lint/check command (e.g. `bun run check`, `npm run lint`) and fix ALL errors before proceeding. Build and lint must pass cleanly.
+      6. Commit your changes with a descriptive message referencing the issue.
     output: "List all files changed and provide a summary of the implementation."
     frontmatter:
       type: object
@@ -62,7 +63,10 @@ roles:
     capabilities:
       - code-review
       - static-analysis
-    procedure: "Review the implementation against the plan. Check for bugs, edge cases, and style."
+    procedure: |
+      1. Run hard checks first — build (`bun run build` or equivalent) and lint (`bunx biome check .` or equivalent) MUST pass with zero errors. If they fail, reject immediately.
+      2. Then review code quality: correctness, edge cases, naming, project conventions (CLAUDE.md), and test coverage.
+      3. Only reject for hard check failures or genuine correctness/security issues. Style suggestions alone should not block approval.
     output: "Approve or reject with detailed comments explaining your decision."
     frontmatter:
       type: object

legacy-packages/workflow-execute/src/engine/engine.ts

@@ -531,13 +531,25 @@ export async function executeThread(
       timestamp: nowMs,
       parentState: options.parentStateHash,
     },
-    steps: input.steps.map((out, i) => ({
+    steps: await Promise.all(
-      role: out.role,
+      input.steps.map(async (out, i) => {
-      contentHash: out.contentHash,
+        // Resolve content for the last step (most relevant for the next agent).
-      meta: out.meta,
+        // Earlier steps only carry meta summaries to avoid bloating the prompt.
-      refs: out.refs,
+        const isLast = i === input.steps.length - 1;
-      timestamp: replayTs?.[i] ?? prefilled?.[i]?.timestamp ?? nowMs + i,
+        let content: string | null = null;
-    })),
+        if (isLast) {
+          content = await getContentMerklePayload(io.cas, out.contentHash);
+        }
+        return {
+          role: out.role,
+          contentHash: out.contentHash,
+          content,
+          meta: out.meta,
+          refs: out.refs,
+          timestamp: replayTs?.[i] ?? prefilled?.[i]?.timestamp ?? nowMs + i,
+        };
+      }),
+    ),
   };
 
   const runtime: WorkflowRuntime = {

legacy-packages/workflow-protocol/src/types.ts

@@ -71,6 +71,7 @@ export type RoleStep<M extends RoleMeta> = {
     role: K;
     meta: M[K];
     contentHash: string;
+    content: string | null;
     refs: string[];
     timestamp: number;
   };

legacy-packages/workflow-runtime/src/build-context.ts

@@ -71,7 +71,8 @@ async function buildRoleStepsFromStates<M extends RoleMeta>(
   cas: CasStore,
 ): Promise<RoleStep<M>[]> {
   const steps: RoleStep<M>[] = [];
-  for (const st of chronologicalStates) {
+  for (let idx = 0; idx < chronologicalStates.length; idx++) {
+    const st = chronologicalStates[idx];
     if (st.payload.role === END) {
       continue;
     }
@@ -79,10 +80,13 @@ async function buildRoleStepsFromStates<M extends RoleMeta>(
     if (contentParsed === null || contentParsed.kind !== "content") {
       throw new Error(`buildThreadContext: expected content node at ${st.payload.content}`);
     }
+    // Resolve full text content for the last step only
+    const isLast = idx === chronologicalStates.length - 1;
     steps.push({
       role: st.payload.role,
       meta: st.payload.meta,
       contentHash: st.payload.content,
+      content: isLast ? contentParsed.node.payload : null,
       refs: [...contentParsed.node.refs],
       timestamp: st.payload.timestamp,
     } as RoleStep<M>);

legacy-packages/workflow-runtime/src/create-workflow.ts

@@ -88,6 +88,7 @@ async function advanceOneRound<M extends RoleMeta>(
   const step = {
     role: next,
     contentHash,
+    content: contentPayload,
     meta,
     refs,
     timestamp: Date.now(),

legacy-packages/workflow-util-agent/__tests__/build-agent-prompt.test.ts

@@ -30,7 +30,7 @@ describe("buildAgentPrompt", () => {
     expect(text).not.toContain("## Tools");
   });
 
-  test("single step shows hash and meta, and includes tools", async () => {
+  test("single step shows meta and content, and includes tools", async () => {
     const onlyHash = "01HASHSINGLESTEP0000000001";
     const ctx: AgentContext = {
       start: startTask("user task"),
@@ -42,6 +42,7 @@ describe("buildAgentPrompt", () => {
         {
           role: "coder",
           contentHash: onlyHash,
+          content: "Here is my implementation of the feature.",
           meta: { files: ["a.ts"] },
           refs: [onlyHash],
           timestamp: 2,
@@ -52,13 +53,39 @@ describe("buildAgentPrompt", () => {
     expect(text).toContain("## Task");
     expect(text).toContain("user task");
     expect(text).toContain("## Step: coder");
-    expect(text).toContain(`ContentHash: ${onlyHash}`);
     expect(text).toContain('Meta: {"files":["a.ts"]}');
+    expect(text).toContain("<output>");
+    expect(text).toContain("Here is my implementation of the feature.");
+    expect(text).toContain("</output>");
     expect(text).toContain("## Tools");
     expect(text).toContain("uncaged-workflow thread 01TEST000000000000000000TR");
   });
 
-  test("two or more steps: previous steps are meta-only; latest step includes hash", async () => {
+  test("single step with null content omits output tag", async () => {
+    const onlyHash = "01HASHSINGLESTEP0000000001";
+    const ctx: AgentContext = {
+      start: startTask("user task"),
+      depth: 0,
+      bundleHash: "TESTHASH00001",
+      threadId: "01TEST000000000000000000TR",
+      currentRole: { name: "coder", systemPrompt: "Be helpful." },
+      steps: [
+        {
+          role: "coder",
+          contentHash: onlyHash,
+          content: null,
+          meta: { files: ["a.ts"] },
+          refs: [onlyHash],
+          timestamp: 2,
+        },
+      ],
+    };
+    const text = await buildAgentPrompt(ctx);
+    expect(text).not.toContain("<output>");
+    expect(text).toContain('Meta: {"files":["a.ts"]}');
+  });
+
+  test("two or more steps: previous steps are meta-only; latest step includes content", async () => {
     const plannerHash = "01HASHPLANNER0000000000001";
     const coderHash = "01HASHCODER0000000000000001";
     const ctx: AgentContext = {
@@ -71,6 +98,7 @@ describe("buildAgentPrompt", () => {
         {
           role: "planner",
           contentHash: plannerHash,
+          content: null,
           meta: { plan: "short" },
           refs: [plannerHash],
           timestamp: 2,
@@ -78,6 +106,7 @@ describe("buildAgentPrompt", () => {
         {
           role: "coder",
           contentHash: coderHash,
+          content: "I reviewed the code and found 4 lint issues:\n1. Missing semicolon on line 42\n2. Unused import on line 3",
           meta: { done: true },
           refs: [coderHash],
           timestamp: 3,
@@ -90,10 +119,11 @@ describe("buildAgentPrompt", () => {
     expect(text).toContain("### Step 1: planner");
     expect(text).toContain('Summary: {"plan":"short"}');
     expect(text).toContain("## Latest Step: coder");
-    expect(text).toContain(`ContentHash: ${coderHash}`);
     expect(text).toContain('Meta: {"done":true}');
+    expect(text).toContain("<output>");
+    expect(text).toContain("I reviewed the code and found 4 lint issues:");
+    expect(text).toContain("</output>");
     expect(text).toContain("## Tools");
-    expect(text).toContain("uncaged-workflow thread 01TEST000000000000000000TR");
   });
 
   test("parentState null omits Parent Context section", async () => {
@@ -125,7 +155,7 @@ describe("buildAgentPrompt", () => {
     expect(text).toContain(`uncaged-workflow cas get ${parentHash}`);
   });
 
-  test("middle steps show meta summary only and latest shows hash", async () => {
+  test("middle steps show meta summary only and latest shows content", async () => {
     const ha = "01HASHA00000000000000000001";
     const hb = "01HASHB00000000000000000001";
     const hc = "01HASHC00000000000000000001";
@@ -139,6 +169,7 @@ describe("buildAgentPrompt", () => {
         {
           role: "a",
           contentHash: ha,
+          content: null,
           meta: { n: 1 },
           refs: [ha],
           timestamp: 2,
@@ -146,6 +177,7 @@ describe("buildAgentPrompt", () => {
         {
           role: "b",
           contentHash: hb,
+          content: null,
           meta: { n: 2 },
           refs: [hb],
           timestamp: 3,
@@ -153,6 +185,7 @@ describe("buildAgentPrompt", () => {
         {
           role: "c",
           contentHash: hc,
+          content: "Final output from role c",
           meta: { n: 3 },
           refs: [hc],
           timestamp: 4,
@@ -162,7 +195,35 @@ describe("buildAgentPrompt", () => {
     const text = await buildAgentPrompt(ctx);
     expect(text).toContain('Summary: {"n":1}');
     expect(text).toContain('Summary: {"n":2}');
-    expect(text).toContain(`ContentHash: ${hc}`);
     expect(text).toContain("## Latest Step: c");
+    expect(text).toContain("<output>");
+    expect(text).toContain("Final output from role c");
+    expect(text).toContain("</output>");
+  });
+
+  test("content is truncated when exceeding quota", async () => {
+    const longContent = "x".repeat(20_000);
+    const hash = "01HASHLONG000000000000000001";
+    const ctx: AgentContext = {
+      start: startTask("task"),
+      depth: 0,
+      bundleHash: "TESTHASH00001",
+      threadId: "01TEST000000000000000000TR",
+      currentRole: { name: "r", systemPrompt: "S" },
+      steps: [
+        {
+          role: "r",
+          contentHash: hash,
+          content: longContent,
+          meta: {},
+          refs: [],
+          timestamp: 2,
+        },
+      ],
+    };
+    const text = await buildAgentPrompt(ctx);
+    expect(text).toContain("<output>");
+    expect(text).toContain("... (truncated)");
+    expect(text.length).toBeLessThan(20_000);
   });
 });

package.json

@@ -5,6 +5,7 @@
     "packages/*"
   ],
   "scripts": {
+    "uwf": "bun packages/cli-workflow/src/cli.ts",
     "build": "bunx tsc --build",
     "check": "bunx tsc --build && biome check . && bash scripts/lint-log-tags.sh",
     "typecheck": "bunx tsc --build",

packages/cli-workflow/README.md

@@ -16,7 +16,7 @@ workflow → thread → step → turn
 - **Workflow** (layer 1): YAML template with roles and routing graph
 - **Thread** (layer 2): Single workflow execution instance
 - **Step** (layer 3): One moderator→agent→extract cycle
-- **Turn** (layer 4): Agent-internal interactions (use `step read` or CAS to inspect)
+- **Turn** (layer 4): Agent-internal interactions (use `step show` or CAS to inspect)
 
 This package has no library `src/index.ts` — it is consumed as a CLI binary only.
 
@@ -49,8 +49,10 @@ bun link packages/cli-workflow
 | `uwf thread start <workflow> -p <prompt>` | Create a thread without executing |
 | `uwf thread exec <thread-id> [--agent <cmd>] [-c <count>] [--background]` | Execute one or more moderator→agent→extract cycles |
 | `uwf thread show <thread-id>` | Show thread head pointer |
-| `uwf thread list [--status <idle\|running\|completed>]` | List threads, optionally filtered by status |
+| `uwf thread list [--status <status>] [--after <date>] [--before <date>] [--skip <n>] [--take <n>]` | List threads filtered by status (idle, running, completed, active, or comma-separated), time range (ISO or relative like '7d'), with pagination |
 | `uwf thread read <thread-id> [--quota N] [--before <hash>] [--start]` | Render thread as readable markdown |
+
+`thread read`, `step list`, and `step show` work on both active and completed threads.
 | `uwf thread stop <thread-id>` | Stop background execution (keep thread active) |
 | `uwf thread cancel <thread-id>` | Cancel thread (stop + archive to history) |
 
@@ -62,6 +64,9 @@ uwf thread exec 01ARZ3NDEKTSV4RRFFQ69G5FAV
 uwf thread exec 01ARZ3NDEKTSV4RRFFQ69G5FAV -c 3 --agent uwf-builtin
 uwf thread exec 01ARZ3NDEKTSV4RRFFQ69G5FAV --background
 uwf thread list --status running
+uwf thread list --status active
+uwf thread list --status idle,completed
+uwf thread list --after 7d --take 10
 uwf thread read 01ARZ3NDEKTSV4RRFFQ69G5FAV --quota 8000
 uwf thread stop 01ARZ3NDEKTSV4RRFFQ69G5FAV
 ```
@@ -72,7 +77,6 @@ uwf thread stop 01ARZ3NDEKTSV4RRFFQ69G5FAV
 |---------|-------------|
 | `uwf step list <thread-id>` | List all steps in a thread chronologically |
 | `uwf step show <step-hash>` | Show step metadata and frontmatter |
-| `uwf step read <step-hash> [--before N]` | Read step output as markdown |
 | `uwf step fork <step-hash>` | Fork a thread from a specific step |
 
 Examples:
@@ -80,7 +84,6 @@ Examples:
 ```bash
 uwf step list 01ARZ3NDEKTSV4RRFFQ69G5FAV
 uwf step show 32GCDE899RRQ3
-uwf step read 32GCDE899RRQ3 --before 3
 uwf step fork 32GCDE899RRQ3
 ```
 

packages/cli-workflow/src/__tests__/cas-exit-code.test.ts

@@ -0,0 +1,152 @@
+import { execSync } from "node:child_process";
+import { mkdir, rm } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { afterEach, beforeEach, describe, expect, test } from "vitest";
+import { cmdCasPutText } from "../commands/cas.js";
+
+let storageRoot: string;
+let uwfPath: string;
+
+beforeEach(async () => {
+  storageRoot = join(
+    tmpdir(),
+    `uwf-cas-exit-test-${Date.now()}-${Math.random().toString(36).slice(2)}`,
+  );
+  await mkdir(storageRoot, { recursive: true });
+
+  // Find the uwf CLI path
+  uwfPath = join(__dirname, "../../src/cli.ts");
+});
+
+afterEach(async () => {
+  await rm(storageRoot, { recursive: true, force: true });
+});
+
+type ExecResult = {
+  stdout: string;
+  stderr: string;
+  exitCode: number;
+};
+
+function execUwf(args: string[]): ExecResult {
+  try {
+    const stdout = execSync(`bun ${uwfPath} ${args.join(" ")}`, {
+      env: { ...process.env, WORKFLOW_STORAGE_ROOT: storageRoot },
+      encoding: "utf-8",
+      stdio: ["pipe", "pipe", "pipe"],
+    });
+    return { stdout, stderr: "", exitCode: 0 };
+  } catch (error: unknown) {
+    if (
+      error &&
+      typeof error === "object" &&
+      "stdout" in error &&
+      "stderr" in error &&
+      "status" in error
+    ) {
+      return {
+        stdout: (error.stdout as Buffer | string).toString(),
+        stderr: (error.stderr as Buffer | string).toString(),
+        exitCode: error.status as number,
+      };
+    }
+    throw error;
+  }
+}
+
+describe("uwf cas has CLI exit codes", () => {
+  test("exits 0 when hash exists", async () => {
+    // Setup: Create a temp storage root, put a text node, capture hash
+    const putResult = await cmdCasPutText(storageRoot, "test content");
+    const hash = putResult.hash;
+
+    // Execute: uwf cas has <hash>
+    const result = execUwf(["cas", "has", hash]);
+
+    // Assert: stdout contains {"exists":true}, exit code === 0
+    expect(result.stdout).toContain('"exists":true');
+    expect(result.exitCode).toBe(0);
+  });
+
+  test("exits 1 when hash does not exist", () => {
+    // Setup: Create a temp storage root (empty CAS store)
+    // Execute: uwf cas has NOSUCHHASH123
+    const result = execUwf(["cas", "has", "NOSUCHHASH123"]);
+
+    // Assert: stdout contains {"exists":false}, exit code === 1
+    expect(result.stdout).toContain('"exists":false');
+    expect(result.exitCode).toBe(1);
+  });
+
+  test("JSON output format unchanged for exists=true", async () => {
+    // Setup: Create store, put node
+    const putResult = await cmdCasPutText(storageRoot, "test");
+    const hash = putResult.hash;
+
+    // Execute: uwf cas has <hash>
+    const result = execUwf(["cas", "has", hash]);
+
+    // Assert: stdout JSON parses correctly to {exists: true}
+    const parsed = JSON.parse(result.stdout.trim());
+    expect(parsed).toEqual({ exists: true });
+  });
+
+  test("JSON output format unchanged for exists=false", () => {
+    // Setup: Create empty store
+    // Execute: uwf cas has INVALID
+    const result = execUwf(["cas", "has", "INVALID"]);
+
+    // Assert: stdout JSON parses correctly to {exists: false}
+    const parsed = JSON.parse(result.stdout.trim());
+    expect(parsed).toEqual({ exists: false });
+  });
+
+  test("YAML output format preserves exit code behavior for exists=true", async () => {
+    // Setup: Create store with node
+    const putResult = await cmdCasPutText(storageRoot, "test");
+    const hash = putResult.hash;
+
+    // Execute: uwf --format yaml cas has <hash>
+    const result = execUwf(["--format", "yaml", "cas", "has", hash]);
+
+    // Assert: exit code === 0, output is YAML format
+    expect(result.exitCode).toBe(0);
+    expect(result.stdout).toContain("exists:");
+    expect(result.stdout).toContain("true");
+  });
+
+  test("YAML output format preserves exit code behavior for exists=false", () => {
+    // Setup: Create empty store
+    // Execute: uwf --format yaml cas has INVALID
+    const result = execUwf(["--format", "yaml", "cas", "has", "INVALID"]);
+
+    // Assert: exit code === 1, output is YAML format
+    expect(result.exitCode).toBe(1);
+    expect(result.stdout).toContain("exists:");
+    expect(result.stdout).toContain("false");
+  });
+});
+
+describe("regression: other cas commands unaffected", () => {
+  test("uwf cas get still exits 1 on not-found with error message", () => {
+    // Execute: uwf cas get NOSUCHHASH
+    const result = execUwf(["cas", "get", "NOSUCHHASH"]);
+
+    // Assert: exit code === 1, stderr contains "Node not found"
+    expect(result.exitCode).toBe(1);
+    expect(result.stderr).toContain("Node not found");
+  });
+
+  test("uwf cas put-text behavior unchanged", () => {
+    // Execute: uwf cas put-text "hello"
+    const result = execUwf(["cas", "put-text", "hello"]);
+
+    // Assert: exit code === 0, returns hash
+    expect(result.exitCode).toBe(0);
+    const parsed = JSON.parse(result.stdout.trim());
+    expect(parsed).toHaveProperty("hash");
+    expect(typeof parsed.hash).toBe("string");
+    expect(parsed.hash.length).toBe(13); // Crockford Base32 XXH64 hash length
+  });
+});

packages/cli-workflow/src/__tests__/cas.test.ts

@@ -0,0 +1,74 @@
+import { mkdir, rm } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { afterEach, beforeEach, describe, expect, test } from "vitest";
+import { cmdCasHas, cmdCasPutText } from "../commands/cas.js";
+
+let storageRoot: string;
+
+beforeEach(async () => {
+  storageRoot = join(tmpdir(), `uwf-cas-test-${Date.now()}-${Math.random().toString(36).slice(2)}`);
+  await mkdir(storageRoot, { recursive: true });
+});
+
+afterEach(async () => {
+  await rm(storageRoot, { recursive: true, force: true });
+});
+
+describe("cmdCasHas", () => {
+  test("returns {exists: true} for existing hash", async () => {
+    // Setup: Create a test store, put a node, get its hash
+    const putResult = await cmdCasPutText(storageRoot, "test content");
+    const hash = putResult.hash;
+
+    // Execute: Call cmdCasHas with the valid hash
+    const result = await cmdCasHas(storageRoot, hash);
+
+    // Assert: Result equals {exists: true}
+    expect(result).toEqual({ exists: true });
+  });
+
+  test("returns {exists: false} for non-existent hash", async () => {
+    // Setup: Create an empty test store
+    // (storageRoot already created in beforeEach)
+
+    // Execute: Call cmdCasHas with an invalid hash
+    const result = await cmdCasHas(storageRoot, "INVALIDHASH12");
+
+    // Assert: Result equals {exists: false}
+    expect(result).toEqual({ exists: false });
+  });
+
+  test("does not throw for non-existent hash", async () => {
+    // Setup: Create an empty test store
+    // Execute & Assert: Does not throw, returns {exists: false}
+    await expect(cmdCasHas(storageRoot, "NOSUCHHASH123")).resolves.toEqual({
+      exists: false,
+    });
+  });
+
+  test("handles malformed hash gracefully", async () => {
+    // Setup: Create a test store
+    // Execute: Call cmdCasHas with a too-short hash
+    const result = await cmdCasHas(storageRoot, "xyz");
+
+    // Assert: Returns {exists: false} (store.has() returns false)
+    expect(result).toEqual({ exists: false });
+  });
+
+  test("handles empty hash string", async () => {
+    // Execute: Call cmdCasHas with an empty string
+    const result = await cmdCasHas(storageRoot, "");
+
+    // Assert: Returns {exists: false}
+    expect(result).toEqual({ exists: false });
+  });
+
+  test("handles hash with special characters", async () => {
+    // Execute: Call cmdCasHas with special characters
+    const result = await cmdCasHas(storageRoot, "HASH!@#");
+
+    // Assert: Returns {exists: false}
+    expect(result).toEqual({ exists: false });
+  });
+});

packages/cli-workflow/src/__tests__/resolve-head-hash.test.ts

@@ -0,0 +1,108 @@
+import { mkdtemp, rm } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import type { CasRef, ThreadId } from "@uncaged/workflow-protocol";
+import { afterEach, beforeEach, describe, expect, test } from "vitest";
+import { resolveHeadHash } from "../commands/shared.js";
+import { appendThreadHistory, saveThreadsIndex } from "../store.js";
+
+let tmpDir: string;
+
+beforeEach(async () => {
+  tmpDir = await mkdtemp(join(tmpdir(), "cli-uwf-resolve-head-"));
+});
+
+afterEach(async () => {
+  await rm(tmpDir, { recursive: true, force: true });
+});
+
+describe("resolveHeadHash", () => {
+  test("returns head hash from threads.yaml for active thread", async () => {
+    const threadId = "01JTEST0000000000000000001" as ThreadId;
+    const headHash = "active_hash_123" as CasRef;
+
+    await saveThreadsIndex(tmpDir, { [threadId]: headHash });
+
+    const result = await resolveHeadHash(tmpDir, threadId);
+
+    expect(result).toBe(headHash);
+  });
+
+  test("falls back to history.jsonl when thread not in threads.yaml", async () => {
+    const threadId = "01JTEST0000000000000000002" as ThreadId;
+    const headHash = "completed_hash_456" as CasRef;
+    const workflowHash = "workflow_hash_789" as CasRef;
+
+    // No entry in threads.yaml, only in history.jsonl
+    await saveThreadsIndex(tmpDir, {});
+    await appendThreadHistory(tmpDir, {
+      thread: threadId,
+      workflow: workflowHash,
+      head: headHash,
+      completedAt: Date.now(),
+    });
+
+    const result = await resolveHeadHash(tmpDir, threadId);
+
+    expect(result).toBe(headHash);
+  });
+
+  // Note: Testing the error case requires CLI-level testing because resolveHeadHash
+  // calls fail() which does process.exit(1), terminating the test runner.
+  // The error behavior is tested in integration tests below via CLI invocation.
+
+  test("prioritizes active thread over history when thread exists in both", async () => {
+    const threadId = "01JTEST0000000000000000004" as ThreadId;
+    const activeHash = "active_hash_v2" as CasRef;
+    const historicalHash = "historical_hash_v1" as CasRef;
+    const workflowHash = "workflow_hash_xyz" as CasRef;
+
+    // Thread exists in both locations (should not happen normally, but test the precedence)
+    await saveThreadsIndex(tmpDir, { [threadId]: activeHash });
+    await appendThreadHistory(tmpDir, {
+      thread: threadId,
+      workflow: workflowHash,
+      head: historicalHash,
+      completedAt: Date.now(),
+    });
+
+    const result = await resolveHeadHash(tmpDir, threadId);
+
+    // Should return the active head, not the historical one
+    expect(result).toBe(activeHash);
+  });
+
+  test("finds thread from multiple history entries", async () => {
+    const threadId1 = "01JTEST0000000000000000005" as ThreadId;
+    const threadId2 = "01JTEST0000000000000000006" as ThreadId;
+    const threadId3 = "01JTEST0000000000000000007" as ThreadId;
+    const hash1 = "hash_thread1" as CasRef;
+    const hash2 = "hash_thread2" as CasRef;
+    const hash3 = "hash_thread3" as CasRef;
+    const workflowHash = "workflow_hash_abc" as CasRef;
+
+    await saveThreadsIndex(tmpDir, {});
+    await appendThreadHistory(tmpDir, {
+      thread: threadId1,
+      workflow: workflowHash,
+      head: hash1,
+      completedAt: Date.now() - 2000,
+    });
+    await appendThreadHistory(tmpDir, {
+      thread: threadId2,
+      workflow: workflowHash,
+      head: hash2,
+      completedAt: Date.now() - 1000,
+    });
+    await appendThreadHistory(tmpDir, {
+      thread: threadId3,
+      workflow: workflowHash,
+      head: hash3,
+      completedAt: Date.now(),
+    });
+
+    const result = await resolveHeadHash(tmpDir, threadId2);
+
+    expect(result).toBe(hash2);
+  });
+});

packages/cli-workflow/src/__tests__/solve-issue-tea-worktree.test.ts

@@ -0,0 +1,98 @@
+import { readFile } from "node:fs/promises";
+import { join } from "node:path";
+import type { WorkflowPayload } from "@uncaged/workflow-protocol";
+import { describe, expect, test } from "vitest";
+import { parse } from "yaml";
+
+/**
+ * Test: Issue #474 - tea pr create fails in git worktree directories
+ *
+ * This test verifies that the solve-issue workflow's committer role
+ * includes the --repo flag when running tea pr create, which fixes
+ * the "path segment [0] is empty" error in worktree directories.
+ */
+
+describe("solve-issue workflow: tea pr create worktree fix", () => {
+  // Navigate up from packages/cli-workflow to repo root
+  const workflowPath = join(process.cwd(), "..", "..", ".workflows", "solve-issue.yaml");
+
+  test("committer procedure should include --repo flag in tea pr create command", async () => {
+    const yamlContent = await readFile(workflowPath, "utf-8");
+    const workflow = parse(yamlContent) as WorkflowPayload;
+
+    expect(workflow.roles.committer).toBeDefined();
+    const committerProcedure = workflow.roles.committer?.procedure;
+    expect(committerProcedure).toBeDefined();
+
+    // Verify the procedure includes tea pr create with --repo flag
+    expect(committerProcedure).toContain("tea pr create");
+    expect(committerProcedure).toContain("--repo");
+
+    // Verify the --repo flag appears before or together with tea pr create
+    // This ensures the command is: tea pr create --repo <owner/repo> ...
+    const teaPrCreateMatch = committerProcedure?.match(/tea pr create[^\n]*/);
+    expect(teaPrCreateMatch).not.toBeNull();
+
+    if (teaPrCreateMatch) {
+      const teaCommandLine = teaPrCreateMatch[0];
+      expect(teaCommandLine).toContain("--repo");
+    }
+  });
+
+  test("committer procedure should mention repo extraction from git remote", async () => {
+    const yamlContent = await readFile(workflowPath, "utf-8");
+    const workflow = parse(yamlContent) as WorkflowPayload;
+
+    const committerProcedure = workflow.roles.committer?.procedure;
+    expect(committerProcedure).toBeDefined();
+
+    // Verify the procedure mentions extracting repo info from git remote
+    // This ensures fallback logic is documented
+    expect(committerProcedure).toMatch(/git remote/i);
+  });
+
+  test("committer procedure should include error handling for tea failures", async () => {
+    const yamlContent = await readFile(workflowPath, "utf-8");
+    const workflow = parse(yamlContent) as WorkflowPayload;
+
+    const committerProcedure = workflow.roles.committer?.procedure;
+    expect(committerProcedure).toBeDefined();
+
+    // Verify the procedure includes error handling guidance
+    // This ensures we capture failures and provide actionable output
+    expect(committerProcedure).toMatch(/error|fail/i);
+  });
+
+  test("workflow should be parseable as valid WorkflowPayload", async () => {
+    const yamlContent = await readFile(workflowPath, "utf-8");
+    const workflow = parse(yamlContent) as WorkflowPayload;
+
+    // Basic structure validation
+    expect(workflow.name).toBe("solve-issue");
+    expect(workflow.roles).toBeDefined();
+    expect(workflow.conditions).toBeDefined();
+    expect(workflow.graph).toBeDefined();
+
+    // Verify committer role exists with required fields
+    expect(workflow.roles.committer).toBeDefined();
+    expect(workflow.roles.committer?.description).toBeDefined();
+    expect(workflow.roles.committer?.goal).toBeDefined();
+    expect(workflow.roles.committer?.procedure).toBeDefined();
+    expect(workflow.roles.committer?.output).toBeDefined();
+    expect(workflow.roles.committer?.frontmatter).toBeDefined();
+  });
+
+  test("committer frontmatter schema should require success field", async () => {
+    const yamlContent = await readFile(workflowPath, "utf-8");
+    // Parse as any to access the raw YAML structure (frontmatter is inline JSON Schema in YAML)
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    const workflow = parse(yamlContent) as any;
+
+    const frontmatter = workflow.roles.committer?.frontmatter;
+    expect(frontmatter).toBeDefined();
+    expect(frontmatter?.type).toBe("object");
+    expect(frontmatter?.properties?.success).toBeDefined();
+    expect(frontmatter?.properties?.success?.type).toBe("boolean");
+    expect(frontmatter?.required).toContain("success");
+  });
+});

packages/cli-workflow/src/__tests__/thread-list-filters.test.ts

@@ -0,0 +1,550 @@
+import { mkdir, mkdtemp, rm } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import type { CasRef, ThreadId } from "@uncaged/workflow-protocol";
+import { extractUlidTimestamp, generateUlid } from "@uncaged/workflow-util";
+import { afterEach, beforeEach, describe, expect, test } from "vitest";
+import { createMarker, deleteMarker } from "../background/index.js";
+import { cmdThreadList } from "../commands/thread.js";
+import { parseTimeInput } from "../commands/thread-time-parser.js";
+import type { UwfStore } from "../store.js";
+import { appendThreadHistory, createUwfStore, saveThreadsIndex } from "../store.js";
+
+// ── helpers ───────────────────────────────────────────────────────────────────
+
+async function makeUwfStore(storageRoot: string): Promise<UwfStore> {
+  const casDir = join(storageRoot, "cas");
+  await mkdir(casDir, { recursive: true });
+  return createUwfStore(storageRoot);
+}
+
+async function createTestWorkflow(uwf: UwfStore): Promise<CasRef> {
+  const workflowPayload = {
+    name: "test-workflow",
+    roles: {
+      role1: {
+        goal: "test goal",
+        outputSchema: { type: "object" as const, properties: {} },
+      },
+    },
+    graph: { start: "role1" },
+    conditions: {},
+  };
+  return await uwf.store.put(uwf.schemas.workflow, workflowPayload);
+}
+
+async function createTestThread(
+  uwf: UwfStore,
+  storageRoot: string,
+  workflowHash: CasRef,
+  timestamp: number,
+): Promise<ThreadId> {
+  const threadId = generateUlid(timestamp) as ThreadId;
+  const startPayload = {
+    workflow: workflowHash,
+    prompt: "test prompt",
+  };
+  const headHash = await uwf.store.put(uwf.schemas.startNode, startPayload);
+  const index = await import("../store.js").then((m) => m.loadThreadsIndex(storageRoot));
+  index[threadId] = headHash;
+  await saveThreadsIndex(storageRoot, index);
+  return threadId;
+}
+
+async function markThreadRunning(storageRoot: string, threadId: ThreadId, workflow: CasRef) {
+  await createMarker(storageRoot, {
+    thread: threadId,
+    workflow,
+    pid: process.pid, // Use current process PID so isPidAlive returns true
+    startedAt: Date.now(),
+  });
+}
+
+async function completeThread(
+  storageRoot: string,
+  threadId: ThreadId,
+  workflowHash: CasRef,
+  headHash: CasRef,
+) {
+  const index = await import("../store.js").then((m) => m.loadThreadsIndex(storageRoot));
+  delete index[threadId];
+  await saveThreadsIndex(storageRoot, index);
+  await appendThreadHistory(storageRoot, {
+    thread: threadId,
+    workflow: workflowHash,
+    head: headHash,
+    completedAt: Date.now(),
+  });
+}
+
+// ── test setup ────────────────────────────────────────────────────────────────
+
+let tmpDir: string;
+
+beforeEach(async () => {
+  tmpDir = await mkdtemp(join(tmpdir(), "thread-list-filters-test-"));
+});
+
+afterEach(async () => {
+  await rm(tmpDir, { recursive: true, force: true });
+});
+
+// ── status filter tests ───────────────────────────────────────────────────────
+
+describe("cmdThreadList status filter", () => {
+  test("should return idle and running threads when status=active", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const thread1 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 3000);
+    const thread2 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 2000);
+    const thread3 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 1000);
+
+    await markThreadRunning(tmpDir, thread2, workflowHash);
+
+    const index = await import("../store.js").then((m) => m.loadThreadsIndex(tmpDir));
+    const thread3Head = index[thread3];
+    if (thread3Head === undefined) throw new Error("thread3 head not found");
+    await completeThread(tmpDir, thread3, workflowHash, thread3Head);
+
+    const result = await cmdThreadList(tmpDir, ["idle", "running"], null, null, null, null);
+
+    expect(result).toHaveLength(2);
+    expect(result.map((r) => r.thread).sort()).toEqual([thread1, thread2].sort());
+
+    // Clean up marker after test
+    await deleteMarker(tmpDir, thread2);
+  });
+
+  test("should support comma-separated status values", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const thread1 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 3000);
+    const thread2 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 2000);
+    const thread3 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 1000);
+
+    await markThreadRunning(tmpDir, thread2, workflowHash);
+
+    const index = await import("../store.js").then((m) => m.loadThreadsIndex(tmpDir));
+    const thread3Head = index[thread3];
+    if (thread3Head === undefined) throw new Error("thread3 head not found");
+    await completeThread(tmpDir, thread3, workflowHash, thread3Head);
+
+    const result = await cmdThreadList(tmpDir, ["idle", "completed"], null, null, null, null);
+
+    // Clean up marker
+    await deleteMarker(tmpDir, thread2);
+
+    // thread2 is running (not idle), so should not be included
+    // Expected: thread1 (idle) and thread3 (completed)
+    expect(result).toHaveLength(2);
+    expect(result.map((r) => r.thread).sort()).toEqual([thread1, thread3].sort());
+  });
+
+  test("should support single status filter (backward compat)", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const _thread1 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 3000);
+    const _thread2 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 2000);
+    const thread3 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 1000);
+
+    const index = await import("../store.js").then((m) => m.loadThreadsIndex(tmpDir));
+    const thread3Head = index[thread3];
+    if (thread3Head === undefined) throw new Error("thread3 head not found");
+    await completeThread(tmpDir, thread3, workflowHash, thread3Head);
+
+    const result = await cmdThreadList(tmpDir, ["completed"], null, null, null, null);
+
+    expect(result).toHaveLength(1);
+    expect(result[0]?.thread).toBe(thread3);
+    expect(result[0]?.status).toBe("completed");
+  });
+
+  test("should return all threads when no status filter provided", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const thread1 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 3000);
+    const thread2 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 2000);
+    const thread3 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 1000);
+
+    await markThreadRunning(tmpDir, thread2, workflowHash);
+
+    const index = await import("../store.js").then((m) => m.loadThreadsIndex(tmpDir));
+    const thread3Head = index[thread3];
+    if (thread3Head === undefined) throw new Error("thread3 head not found");
+    await completeThread(tmpDir, thread3, workflowHash, thread3Head);
+
+    const result = await cmdThreadList(tmpDir, null, null, null, null, null);
+
+    expect(result).toHaveLength(3);
+    expect(result.map((r) => r.thread).sort()).toEqual([thread1, thread2, thread3].sort());
+  });
+});
+
+// ── time range filtering tests ────────────────────────────────────────────────
+
+describe("cmdThreadList time filters", () => {
+  test("should filter threads created after given timestamp", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const ts1 = Date.UTC(2026, 4, 20, 0, 0, 0);
+    const ts2 = Date.UTC(2026, 4, 21, 0, 0, 0);
+    const ts3 = Date.UTC(2026, 4, 22, 0, 0, 0);
+
+    const _threadA = await createTestThread(uwf, tmpDir, workflowHash, ts1);
+    const threadB = await createTestThread(uwf, tmpDir, workflowHash, ts2);
+    const threadC = await createTestThread(uwf, tmpDir, workflowHash, ts3);
+
+    // Use a timestamp slightly before ts2 to include threadB
+    const afterMs = Date.UTC(2026, 4, 20, 12, 0, 0);
+    const result = await cmdThreadList(tmpDir, null, afterMs, null, null, null);
+
+    expect(result).toHaveLength(2);
+    expect(result.map((r) => r.thread).sort()).toEqual([threadB, threadC].sort());
+  });
+
+  test("should filter threads created before given timestamp", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const ts1 = Date.UTC(2026, 4, 20, 0, 0, 0);
+    const ts2 = Date.UTC(2026, 4, 21, 0, 0, 0);
+    const ts3 = Date.UTC(2026, 4, 22, 0, 0, 0);
+
+    const threadA = await createTestThread(uwf, tmpDir, workflowHash, ts1);
+    const threadB = await createTestThread(uwf, tmpDir, workflowHash, ts2);
+    const _threadC = await createTestThread(uwf, tmpDir, workflowHash, ts3);
+
+    const beforeMs = Date.UTC(2026, 4, 22, 0, 0, 0);
+    const result = await cmdThreadList(tmpDir, null, null, beforeMs, null, null);
+
+    expect(result).toHaveLength(2);
+    expect(result.map((r) => r.thread).sort()).toEqual([threadA, threadB].sort());
+  });
+
+  test("should support both after and before filters (time range)", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const ts1 = Date.UTC(2026, 4, 20, 0, 0, 0);
+    const ts2 = Date.UTC(2026, 4, 21, 0, 0, 0);
+    const ts3 = Date.UTC(2026, 4, 22, 0, 0, 0);
+
+    const _threadA = await createTestThread(uwf, tmpDir, workflowHash, ts1);
+    const threadB = await createTestThread(uwf, tmpDir, workflowHash, ts2);
+    const _threadC = await createTestThread(uwf, tmpDir, workflowHash, ts3);
+
+    const afterMs = Date.UTC(2026, 4, 20, 12, 0, 0);
+    const beforeMs = Date.UTC(2026, 4, 22, 0, 0, 0);
+    const result = await cmdThreadList(tmpDir, null, afterMs, beforeMs, null, null);
+
+    expect(result).toHaveLength(1);
+    expect(result[0]?.thread).toBe(threadB);
+  });
+});
+
+// ── pagination tests ──────────────────────────────────────────────────────────
+
+describe("cmdThreadList pagination", () => {
+  test("should limit results with --take", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const threads: ThreadId[] = [];
+    for (let i = 0; i < 10; i++) {
+      threads.push(await createTestThread(uwf, tmpDir, workflowHash, Date.now() - i * 1000));
+    }
+
+    const result = await cmdThreadList(tmpDir, null, null, null, null, 5);
+
+    expect(result).toHaveLength(5);
+  });
+
+  test("should skip first N threads with --skip", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const threads: ThreadId[] = [];
+    // Create threads in chronological order, but they'll be sorted newest first
+    for (let i = 0; i < 10; i++) {
+      threads.push(await createTestThread(uwf, tmpDir, workflowHash, Date.now() + i * 100));
+      // Small delay to ensure distinct timestamps
+      await new Promise((resolve) => setTimeout(resolve, 10));
+    }
+
+    const result = await cmdThreadList(tmpDir, null, null, null, 3, null);
+
+    expect(result).toHaveLength(7);
+    // The 3 newest threads should be skipped, so we should get the 7 oldest
+  });
+
+  test("should support skip + take for pagination", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const threads: ThreadId[] = [];
+    for (let i = 0; i < 10; i++) {
+      threads.push(await createTestThread(uwf, tmpDir, workflowHash, Date.now() + i * 100));
+      await new Promise((resolve) => setTimeout(resolve, 10));
+    }
+
+    const result = await cmdThreadList(tmpDir, null, null, null, 5, 3);
+
+    expect(result).toHaveLength(3);
+    // Should skip first 5 (newest), then take 3
+  });
+
+  test("should handle take > available threads", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const _thread1 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 3000);
+    const _thread2 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 2000);
+    const _thread3 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 1000);
+
+    const result = await cmdThreadList(tmpDir, null, null, null, null, 10);
+
+    expect(result).toHaveLength(3);
+  });
+
+  test("should return empty array when skip >= thread count", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 3000);
+    await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 2000);
+    await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 1000);
+
+    const result = await cmdThreadList(tmpDir, null, null, null, 5, null);
+
+    expect(result).toHaveLength(0);
+  });
+});
+
+// ── combined filters tests ────────────────────────────────────────────────────
+
+describe("combined filters", () => {
+  test("should combine status and time range filters", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const ts1 = Date.UTC(2026, 4, 20, 0, 0, 0);
+    const ts2 = Date.UTC(2026, 4, 21, 0, 0, 0);
+    const ts3 = Date.UTC(2026, 4, 22, 0, 0, 0);
+    const ts4 = Date.UTC(2026, 4, 23, 0, 0, 0);
+
+    const _thread1 = await createTestThread(uwf, tmpDir, workflowHash, ts1);
+    const thread2 = await createTestThread(uwf, tmpDir, workflowHash, ts2);
+    const thread3 = await createTestThread(uwf, tmpDir, workflowHash, ts3);
+    const thread4 = await createTestThread(uwf, tmpDir, workflowHash, ts4);
+
+    await markThreadRunning(tmpDir, thread2, workflowHash);
+
+    const index = await import("../store.js").then((m) => m.loadThreadsIndex(tmpDir));
+    const thread3Head = index[thread3];
+    if (thread3Head === undefined) throw new Error("thread3 head not found");
+    await completeThread(tmpDir, thread3, workflowHash, thread3Head);
+
+    const afterMs = Date.UTC(2026, 4, 20, 12, 0, 0);
+    const result = await cmdThreadList(tmpDir, ["idle"], afterMs, null, null, null);
+
+    expect(result).toHaveLength(1);
+    expect(result[0]?.thread).toBe(thread4);
+    expect(result[0]?.status).toBe("idle");
+
+    // Clean up marker
+    await deleteMarker(tmpDir, thread2);
+  });
+
+  test("should combine status filter and pagination", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const threads: ThreadId[] = [];
+    for (let i = 9; i >= 0; i--) {
+      const thread = await createTestThread(uwf, tmpDir, workflowHash, Date.now() + i * 1000);
+      threads.push(thread);
+      const index = await import("../store.js").then((m) => m.loadThreadsIndex(tmpDir));
+      const headHash = index[thread];
+      if (headHash === undefined) throw new Error("head not found");
+      await completeThread(tmpDir, thread, workflowHash, headHash);
+    }
+
+    const result = await cmdThreadList(tmpDir, ["completed"], null, null, 3, 5);
+
+    expect(result).toHaveLength(5);
+    for (const r of result) {
+      expect(r.status).toBe("completed");
+    }
+  });
+
+  test("should combine time range and pagination", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const threads: ThreadId[] = [];
+    for (let i = 0; i < 20; i++) {
+      const ts = Date.UTC(2026, 4, 1 + i, 0, 0, 0);
+      threads.push(await createTestThread(uwf, tmpDir, workflowHash, ts));
+    }
+
+    const afterMs = Date.UTC(2026, 4, 10, 0, 0, 0);
+    const result = await cmdThreadList(tmpDir, null, afterMs, null, 2, 5);
+
+    expect(result).toHaveLength(5);
+    for (const r of result) {
+      const ts = extractUlidTimestamp(r.thread);
+      expect(ts).not.toBeNull();
+      if (ts !== null) {
+        expect(ts).toBeGreaterThan(afterMs);
+      }
+    }
+  });
+
+  async function setupMixedStatusThreads(
+    uwf: UwfStore,
+    workflowHash: string,
+    count: number,
+  ): Promise<ThreadId[]> {
+    const threads: ThreadId[] = [];
+    for (let i = 0; i < count; i++) {
+      const ts = Date.UTC(2026, 4, 10 + i, 0, 0, 0);
+      const thread = await createTestThread(uwf, tmpDir, workflowHash, ts);
+      threads.push(thread);
+
+      if (i % 2 === 0) {
+        const index = await import("../store.js").then((m) => m.loadThreadsIndex(tmpDir));
+        const headHash = index[thread];
+        if (headHash === undefined) throw new Error("head not found");
+        await completeThread(tmpDir, thread, workflowHash, headHash);
+      } else {
+        await markThreadRunning(tmpDir, thread, workflowHash);
+      }
+    }
+    return threads;
+  }
+
+  async function cleanupRunningMarkers(threads: ThreadId[]): Promise<void> {
+    for (let i = 0; i < threads.length; i++) {
+      if (i % 2 !== 0) {
+        await deleteMarker(tmpDir, threads[i] as ThreadId);
+      }
+    }
+  }
+
+  test("should combine all filters (status + time + pagination)", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+    const threads = await setupMixedStatusThreads(uwf, workflowHash, 15);
+
+    const afterMs = Date.UTC(2026, 4, 14, 12, 0, 0);
+    const beforeMs = Date.UTC(2026, 4, 20, 0, 0, 0);
+    const result = await cmdThreadList(tmpDir, ["idle", "running"], afterMs, beforeMs, 1, 3);
+
+    expect(result.length).toBeLessThanOrEqual(3);
+    for (const r of result) {
+      expect(["idle", "running"]).toContain(r.status);
+      const ts = extractUlidTimestamp(r.thread);
+      if (ts !== null) {
+        expect(ts).toBeGreaterThan(afterMs);
+        expect(ts).toBeLessThan(beforeMs);
+      }
+    }
+
+    await cleanupRunningMarkers(threads);
+  });
+});
+
+// ── edge cases tests ──────────────────────────────────────────────────────────
+
+describe("edge cases", () => {
+  test("should handle empty thread list", async () => {
+    await makeUwfStore(tmpDir);
+    const result = await cmdThreadList(tmpDir, null, null, null, null, null);
+    expect(result).toHaveLength(0);
+  });
+
+  test("should skip threads with invalid ULID when time filtering", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const workflowHash = await createTestWorkflow(uwf);
+
+    const thread1 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 2000);
+    const thread2 = await createTestThread(uwf, tmpDir, workflowHash, Date.now() - 1000);
+
+    const index = await import("../store.js").then((m) => m.loadThreadsIndex(tmpDir));
+    index["INVALID_ULID_FORMAT_HERE" as ThreadId] = "01J6HMVRNQKJV2";
+    await saveThreadsIndex(tmpDir, index);
+
+    const afterMs = Date.now() - 3000;
+    const result = await cmdThreadList(tmpDir, null, afterMs, null, null, null);
+
+    expect(result).toHaveLength(2);
+    expect(result.map((r) => r.thread).sort()).toEqual([thread1, thread2].sort());
+  });
+});
+
+// ── time parsing tests ────────────────────────────────────────────────────────
+
+describe("relative time parsing", () => {
+  test("should parse '7d' as 7 days ago", () => {
+    const nowMs = Date.UTC(2026, 4, 24, 12, 0, 0);
+    const result = parseTimeInput("7d", nowMs);
+    const expected = Date.UTC(2026, 4, 17, 12, 0, 0);
+    expect(result).toBe(expected);
+  });
+
+  test("should parse '24h' as 24 hours ago", () => {
+    const nowMs = Date.UTC(2026, 4, 24, 12, 0, 0);
+    const result = parseTimeInput("24h", nowMs);
+    const expected = Date.UTC(2026, 4, 23, 12, 0, 0);
+    expect(result).toBe(expected);
+  });
+
+  test("should parse '30m' as 30 minutes ago", () => {
+    const nowMs = Date.UTC(2026, 4, 24, 12, 30, 0);
+    const result = parseTimeInput("30m", nowMs);
+    const expected = Date.UTC(2026, 4, 24, 12, 0, 0);
+    expect(result).toBe(expected);
+  });
+
+  test("should parse '1d' as 1 day ago", () => {
+    const nowMs = Date.UTC(2026, 4, 24, 0, 0, 0);
+    const result = parseTimeInput("1d", nowMs);
+    const expected = Date.UTC(2026, 4, 23, 0, 0, 0);
+    expect(result).toBe(expected);
+  });
+});
+
+describe("ISO date parsing", () => {
+  test("should parse ISO date (YYYY-MM-DD)", () => {
+    const nowMs = Date.now();
+    const result = parseTimeInput("2026-05-20", nowMs);
+    const expected = Date.UTC(2026, 4, 20, 0, 0, 0);
+    expect(result).toBe(expected);
+  });
+
+  test("should parse ISO datetime (YYYY-MM-DDTHH:MM:SS)", () => {
+    const nowMs = Date.now();
+    const result = parseTimeInput("2026-05-20T14:30:00", nowMs);
+    const expected = Date.parse("2026-05-20T14:30:00");
+    expect(result).toBe(expected);
+  });
+
+  test("should parse ISO datetime with Z suffix", () => {
+    const nowMs = Date.now();
+    const result = parseTimeInput("2026-05-20T14:30:00Z", nowMs);
+    const expected = Date.UTC(2026, 4, 20, 14, 30, 0);
+    expect(result).toBe(expected);
+  });
+
+  test("should reject invalid date formats", () => {
+    const nowMs = Date.now();
+    expect(() => parseTimeInput("not-a-date", nowMs)).toThrow();
+    expect(() => parseTimeInput("2026-13-01", nowMs)).toThrow();
+    expect(() => parseTimeInput("invalid", nowMs)).toThrow();
+  });
+});

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

@@ -5,7 +5,7 @@ import { bootstrap, putSchema } from "@uncaged/json-cas";
 import { createFsStore } from "@uncaged/json-cas-fs";
 import type { CasRef, ThreadId } from "@uncaged/workflow-protocol";
 import { afterEach, beforeEach, describe, expect, test } from "vitest";
-import { cmdStepShow } from "../commands/step.js";
+import { cmdStepList, cmdStepShow } from "../commands/step.js";
 import {
   cmdThreadRead,
   extractLastAssistantContent,
@@ -13,7 +13,7 @@ import {
 } from "../commands/thread.js";
 import { registerUwfSchemas } from "../schemas.js";
 import type { UwfStore } from "../store.js";
-import { saveThreadsIndex } from "../store.js";
+import { appendThreadHistory, saveThreadsIndex } from "../store.js";
 
 // ── schemas used in tests ────────────────────────────────────────────────────
 
@@ -647,3 +647,383 @@ describe("cmdStepShow (process.exit tests - must be last)", () => {
     ).rejects.toThrow();
   });
 });
+
+// ── cmdStepList / cmdStepShow: completed threads ──────────────────────────────
+
+describe("cmdStepList with completed threads", () => {
+  test("lists steps from active thread", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+
+    const workflowHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "test-wf-active",
+      description: "desc",
+      roles: {},
+      conditions: {},
+      graph: {},
+    });
+    const startHash = await uwf.store.put(uwf.schemas.startNode, {
+      workflow: workflowHash,
+      prompt: "Start prompt",
+    });
+    const outputHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "out",
+      description: "",
+      roles: {},
+      conditions: {},
+      graph: {},
+    });
+
+    const step1Hash = await uwf.store.put(uwf.schemas.stepNode, {
+      start: startHash,
+      prev: null,
+      role: "role1",
+      output: outputHash,
+      detail: null,
+      agent: "uwf-test",
+    });
+    const step2Hash = await uwf.store.put(uwf.schemas.stepNode, {
+      start: startHash,
+      prev: step1Hash,
+      role: "role2",
+      output: outputHash,
+      detail: null,
+      agent: "uwf-test",
+    });
+    const step3Hash = await uwf.store.put(uwf.schemas.stepNode, {
+      start: startHash,
+      prev: step2Hash,
+      role: "role3",
+      output: outputHash,
+      detail: null,
+      agent: "uwf-test",
+    });
+
+    const threadId = "01JTEST0000000000000000A1" as ThreadId;
+    await saveThreadsIndex(tmpDir, { [threadId]: step3Hash });
+
+    const result = await cmdStepList(tmpDir, threadId);
+
+    expect(result.thread).toBe(threadId);
+    expect(result.steps).toHaveLength(4); // start + 3 steps
+    expect(result.steps[1].role).toBe("role1");
+    expect(result.steps[2].role).toBe("role2");
+    expect(result.steps[3].role).toBe("role3");
+  });
+
+  test("lists steps from completed thread", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+
+    const workflowHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "test-wf-completed",
+      description: "desc",
+      roles: {},
+      conditions: {},
+      graph: {},
+    });
+    const startHash = await uwf.store.put(uwf.schemas.startNode, {
+      workflow: workflowHash,
+      prompt: "Start prompt",
+    });
+    const outputHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "out",
+      description: "",
+      roles: {},
+      conditions: {},
+      graph: {},
+    });
+
+    const step1Hash = await uwf.store.put(uwf.schemas.stepNode, {
+      start: startHash,
+      prev: null,
+      role: "roleA",
+      output: outputHash,
+      detail: null,
+      agent: "uwf-test",
+    });
+    const step2Hash = await uwf.store.put(uwf.schemas.stepNode, {
+      start: startHash,
+      prev: step1Hash,
+      role: "roleB",
+      output: outputHash,
+      detail: null,
+      agent: "uwf-test",
+    });
+
+    const threadId = "01JTEST0000000000000000A2" as ThreadId;
+    // Thread is NOT in threads.yaml (simulating completed thread)
+    await saveThreadsIndex(tmpDir, {});
+    // But it IS in history.jsonl
+    await appendThreadHistory(tmpDir, {
+      thread: threadId,
+      workflow: workflowHash,
+      head: step2Hash,
+      completedAt: Date.now(),
+    });
+
+    const result = await cmdStepList(tmpDir, threadId);
+
+    expect(result.thread).toBe(threadId);
+    expect(result.steps).toHaveLength(3); // start + 2 steps
+    expect(result.steps[1].role).toBe("roleA");
+    expect(result.steps[2].role).toBe("roleB");
+  });
+});
+
+describe("cmdStepShow with completed threads", () => {
+  test("shows step detail from active thread", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const detailSchemas = await registerDetailSchemas(uwf.store);
+
+    const workflowHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "test-wf-step-active",
+      description: "desc",
+      roles: {},
+      conditions: {},
+      graph: {},
+    });
+    const startHash = await uwf.store.put(uwf.schemas.startNode, {
+      workflow: workflowHash,
+      prompt: "p",
+    });
+    const outputHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "out",
+      description: "",
+      roles: {},
+      conditions: {},
+      graph: {},
+    });
+
+    const turnHash = await uwf.store.put(detailSchemas.turn, {
+      index: 0,
+      role: "assistant",
+      content: "Active thread response",
+      toolCalls: null,
+      reasoning: null,
+    });
+    const detailHash = await uwf.store.put(detailSchemas.detail, {
+      sessionId: "sess-active",
+      model: "model-x",
+      duration: 1234,
+      turnCount: 1,
+      turns: [turnHash],
+    });
+
+    const stepHash = await uwf.store.put(uwf.schemas.stepNode, {
+      start: startHash,
+      prev: null,
+      role: "coder",
+      output: outputHash,
+      detail: detailHash,
+      agent: "uwf-hermes",
+    });
+
+    const threadId = "01JTEST0000000000000000B1" as ThreadId;
+    await saveThreadsIndex(tmpDir, { [threadId]: stepHash });
+
+    const result = await cmdStepShow(tmpDir, stepHash);
+
+    expect(result).toMatchObject({
+      sessionId: "sess-active",
+      model: "model-x",
+      duration: 1234,
+      turnCount: 1,
+    });
+  });
+
+  test("shows step detail from completed thread", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+    const detailSchemas = await registerDetailSchemas(uwf.store);
+
+    const workflowHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "test-wf-step-completed",
+      description: "desc",
+      roles: {},
+      conditions: {},
+      graph: {},
+    });
+    const startHash = await uwf.store.put(uwf.schemas.startNode, {
+      workflow: workflowHash,
+      prompt: "p",
+    });
+    const outputHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "out",
+      description: "",
+      roles: {},
+      conditions: {},
+      graph: {},
+    });
+
+    const turnHash = await uwf.store.put(detailSchemas.turn, {
+      index: 0,
+      role: "assistant",
+      content: "Completed thread response",
+      toolCalls: null,
+      reasoning: null,
+    });
+    const detailHash = await uwf.store.put(detailSchemas.detail, {
+      sessionId: "sess-completed",
+      model: "model-y",
+      duration: 5678,
+      turnCount: 1,
+      turns: [turnHash],
+    });
+
+    const stepHash = await uwf.store.put(uwf.schemas.stepNode, {
+      start: startHash,
+      prev: null,
+      role: "reviewer",
+      output: outputHash,
+      detail: detailHash,
+      agent: "uwf-hermes",
+    });
+
+    const threadId = "01JTEST0000000000000000B2" as ThreadId;
+    // Thread is NOT in threads.yaml
+    await saveThreadsIndex(tmpDir, {});
+    // But it IS in history.jsonl
+    await appendThreadHistory(tmpDir, {
+      thread: threadId,
+      workflow: workflowHash,
+      head: stepHash,
+      completedAt: Date.now(),
+    });
+
+    const result = await cmdStepShow(tmpDir, stepHash);
+
+    expect(result).toMatchObject({
+      sessionId: "sess-completed",
+      model: "model-y",
+      duration: 5678,
+      turnCount: 1,
+    });
+  });
+});
+
+describe("cmdThreadRead with completed threads", () => {
+  test("reads completed thread context", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+
+    const workflowHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "test-wf-read-completed",
+      description: "desc",
+      roles: {
+        writer: {
+          description: "Write",
+          goal: "You are a writer.",
+          capabilities: [],
+          procedure: "Write content.",
+          output: "Summary.",
+          meta: "placeholder00" as CasRef,
+        },
+      },
+      conditions: {},
+      graph: {},
+    });
+    const startHash = await uwf.store.put(uwf.schemas.startNode, {
+      workflow: workflowHash,
+      prompt: "Write something",
+    });
+    const outputHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "out",
+      description: "",
+      roles: {},
+      conditions: {},
+      graph: {},
+    });
+
+    const stepHash = await uwf.store.put(uwf.schemas.stepNode, {
+      start: startHash,
+      prev: null,
+      role: "writer",
+      output: outputHash,
+      detail: null,
+      agent: "uwf-hermes",
+    });
+
+    const threadId = "01JTEST0000000000000000C1" as ThreadId;
+    // Thread is NOT in threads.yaml
+    await saveThreadsIndex(tmpDir, {});
+    // But it IS in history.jsonl
+    await appendThreadHistory(tmpDir, {
+      thread: threadId,
+      workflow: workflowHash,
+      head: stepHash,
+      completedAt: Date.now(),
+    });
+
+    const markdown = await cmdThreadRead(tmpDir, threadId, THREAD_READ_DEFAULT_QUOTA, null, false);
+
+    expect(markdown).toContain("writer");
+    expect(markdown).toContain("Write something");
+  });
+
+  test("reads completed thread with before filter", async () => {
+    const uwf = await makeUwfStore(tmpDir);
+
+    const workflowHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "test-wf-read-before",
+      description: "desc",
+      roles: {},
+      conditions: {},
+      graph: {},
+    });
+    const startHash = await uwf.store.put(uwf.schemas.startNode, {
+      workflow: workflowHash,
+      prompt: "Do task",
+    });
+    const outputHash = await uwf.store.put(uwf.schemas.workflow, {
+      name: "out",
+      description: "",
+      roles: {},
+      conditions: {},
+      graph: {},
+    });
+
+    const step1Hash = await uwf.store.put(uwf.schemas.stepNode, {
+      start: startHash,
+      prev: null,
+      role: "roleX",
+      output: outputHash,
+      detail: null,
+      agent: "uwf-test",
+    });
+    const step2Hash = await uwf.store.put(uwf.schemas.stepNode, {
+      start: startHash,
+      prev: step1Hash,
+      role: "roleY",
+      output: outputHash,
+      detail: null,
+      agent: "uwf-test",
+    });
+    const step3Hash = await uwf.store.put(uwf.schemas.stepNode, {
+      start: startHash,
+      prev: step2Hash,
+      role: "roleZ",
+      output: outputHash,
+      detail: null,
+      agent: "uwf-test",
+    });
+
+    const threadId = "01JTEST0000000000000000C2" as ThreadId;
+    await saveThreadsIndex(tmpDir, {});
+    await appendThreadHistory(tmpDir, {
+      thread: threadId,
+      workflow: workflowHash,
+      head: step3Hash,
+      completedAt: Date.now(),
+    });
+
+    const markdown = await cmdThreadRead(
+      tmpDir,
+      threadId,
+      THREAD_READ_DEFAULT_QUOTA,
+      step2Hash,
+      false,
+    );
+
+    // Should contain step1 (roleX) but not step2 (roleY) or step3 (roleZ)
+    expect(markdown).toContain("roleX");
+    expect(markdown).not.toContain("roleY");
+    expect(markdown).not.toContain("roleZ");
+  });
+});

packages/cli-workflow/src/cli.ts

@@ -28,6 +28,7 @@ import {
   THREAD_READ_DEFAULT_QUOTA,
   type ThreadStatus,
 } from "./commands/thread.js";
+import { parseTimeInput } from "./commands/thread-time-parser.js";
 import { cmdWorkflowAdd, cmdWorkflowList, cmdWorkflowShow } from "./commands/workflow.js";
 import { formatOutput, type OutputFormat } from "./format.js";
 import { resolveStorageRoot } from "./store.js";
@@ -168,30 +169,103 @@ thread
     });
   });
 
+// Helper functions for thread list command parsing
+function parseStatusFilter(status: string | undefined): ThreadStatus[] | null {
+  if (status === undefined) return null;
+  const raw = status.trim();
+  if (raw === "active") return ["idle", "running"];
+
+  const parts = raw.split(",").map((s) => s.trim());
+  const validStatuses: ThreadStatus[] = ["idle", "running", "completed"];
+  for (const part of parts) {
+    if (!validStatuses.includes(part as ThreadStatus)) {
+      process.stderr.write(
+        `Invalid status: ${part}. Must be one of: idle, running, completed, active\n`,
+      );
+      process.exit(1);
+    }
+  }
+  return parts as ThreadStatus[];
+}
+
+function parseTimeFilters(
+  after: string | undefined,
+  before: string | undefined,
+  nowMs: number,
+): { afterMs: number | null; beforeMs: number | null } {
+  try {
+    const afterMs = after !== undefined ? parseTimeInput(after, nowMs) : null;
+    const beforeMs = before !== undefined ? parseTimeInput(before, nowMs) : null;
+    return { afterMs, beforeMs };
+  } catch (e) {
+    const message = e instanceof Error ? e.message : String(e);
+    process.stderr.write(`${message}\n`);
+    process.exit(1);
+  }
+}
+
+function parsePaginationOptions(
+  skip: string | undefined,
+  take: string | undefined,
+): { skip: number | null; take: number | null } {
+  let skipVal: number | null = null;
+  let takeVal: number | null = null;
+
+  if (skip !== undefined) {
+    skipVal = Number.parseInt(skip, 10);
+    if (!Number.isInteger(skipVal) || skipVal < 0) {
+      process.stderr.write("--skip must be a non-negative integer\n");
+      process.exit(1);
+    }
+  }
+  if (take !== undefined) {
+    takeVal = Number.parseInt(take, 10);
+    if (!Number.isInteger(takeVal) || takeVal < 1) {
+      process.stderr.write("--take must be a positive integer\n");
+      process.exit(1);
+    }
+  }
+  return { skip: skipVal, take: takeVal };
+}
+
 thread
   .command("list")
   .description("List threads")
-  .option("--status <status>", "Filter by status: idle, running, or completed")
+  .option(
-  .action((opts: { status: string | undefined }) => {
+    "--status <status>",
-    const storageRoot = resolveStorageRoot();
+    "Filter by status: idle, running, completed, active (idle+running), or comma-separated values",
-    runAction(async () => {
+  )
-      const validStatuses: ThreadStatus[] = ["idle", "running", "completed"];
+  .option("--after <date>", "Filter threads created after this date (ISO or relative like '7d')")
-      let statusFilter: ThreadStatus | null = null;
+  .option("--before <date>", "Filter threads created before this date (ISO or relative like '7d')")
+  .option("--skip <n>", "Skip first n threads")
+  .option("--take <n>", "Return at most n threads")
+  .action(
+    (opts: {
+      status: string | undefined;
+      after: string | undefined;
+      before: string | undefined;
+      skip: string | undefined;
+      take: string | undefined;
+    }) => {
+      const storageRoot = resolveStorageRoot();
+      runAction(async () => {
+        const statusFilter = parseStatusFilter(opts.status);
+        const nowMs = Date.now();
+        const { afterMs, beforeMs } = parseTimeFilters(opts.after, opts.before, nowMs);
+        const { skip, take } = parsePaginationOptions(opts.skip, opts.take);
 
-      if (opts.status !== undefined) {
+        const result = await cmdThreadList(
-        if (!validStatuses.includes(opts.status as ThreadStatus)) {
+          storageRoot,
-          process.stderr.write(
+          statusFilter,
-            `Invalid status: ${opts.status}. Must be one of: idle, running, completed\n`,
+          afterMs,
-          );
+          beforeMs,
-          process.exit(1);
+          skip,
-        }
+          take,
-        statusFilter = opts.status as ThreadStatus;
+        );
-      }
+        writeOutput(result);
-
+      });
-      const result = await cmdThreadList(storageRoot, statusFilter);
+    },
-      writeOutput(result);
+  );
-    });
-  });
 
 thread
   .command("stop")
@@ -475,7 +549,11 @@ cas
   .action((hash: string) => {
     const storageRoot = resolveStorageRoot();
     runAction(async () => {
-      writeOutput(await cmdCasHas(storageRoot, hash));
+      const result = await cmdCasHas(storageRoot, hash);
+      writeOutput(result);
+      if (!result.exists) {
+        process.exit(1);
+      }
     });
   });
 

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

@@ -6,7 +6,7 @@ import type {
   StepNodePayload,
   ThreadId,
 } from "@uncaged/workflow-protocol";
-import { loadThreadsIndex, type UwfStore } from "../store.js";
+import { findThreadInHistory, loadThreadsIndex, type UwfStore } from "../store.js";
 
 type ChainState = {
   startHash: CasRef;
@@ -203,11 +203,15 @@ function collectOrderedSteps(
 
 async function resolveHeadHash(storageRoot: string, threadId: ThreadId): Promise<CasRef> {
   const index = await loadThreadsIndex(storageRoot);
-  const head = index[threadId];
+  const activeHead = index[threadId];
-  if (head === undefined) {
+  if (activeHead !== undefined) {
-    fail(`thread not active: ${threadId}`);
+    return activeHead;
   }
-  return head;
+  const hist = await findThreadInHistory(storageRoot, threadId);
+  if (hist !== null) {
+    return hist.head;
+  }
+  fail(`thread not found: ${threadId}`);
 }
 
 export {

packages/cli-workflow/src/commands/thread-time-parser.ts

@@ -0,0 +1,23 @@
+/**
+ * Parse time input: ISO date (YYYY-MM-DD, YYYY-MM-DDTHH:MM:SS) or relative (7d, 24h, 30m)
+ * Returns Unix timestamp in milliseconds.
+ */
+export function parseTimeInput(input: string, nowMs: number): number {
+  const trimmed = input.trim();
+
+  // Relative time: 7d, 24h, 30m
+  const relativeMatch = /^(\d+)(d|h|m)$/.exec(trimmed);
+  if (relativeMatch !== null) {
+    const value = Number.parseInt(relativeMatch[1], 10);
+    const unit = relativeMatch[2];
+    const multiplier = unit === "d" ? 86400000 : unit === "h" ? 3600000 : 60000;
+    return nowMs - value * multiplier;
+  }
+
+  // ISO date: try parsing
+  const parsed = Date.parse(trimmed);
+  if (Number.isNaN(parsed)) {
+    throw new Error(`invalid time format: ${trimmed} (expected ISO date or relative like '7d')`);
+  }
+  return parsed;
+}

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

@@ -9,7 +9,6 @@ import type {
   AgentConfig,
   CasRef,
   ModeratorContext,
-  RunningThreadsOutput,
   StartNodePayload,
   StartOutput,
   StepContext,
@@ -17,18 +16,19 @@ import type {
   StepOutput,
   ThreadId,
   ThreadListItem,
+  ThreadsIndex,
   WorkflowConfig,
   WorkflowPayload,
 } from "@uncaged/workflow-protocol";
-import { createProcessLogger, generateUlid, type ProcessLogger } from "@uncaged/workflow-util";
+import {
+  createProcessLogger,
+  extractUlidTimestamp,
+  generateUlid,
+  type ProcessLogger,
+} from "@uncaged/workflow-util";
 import { config as loadDotenv } from "dotenv";
 import { parse, stringify } from "yaml";
-import {
+import { createMarker, deleteMarker, isThreadRunning } from "../background/index.js";
-  createMarker,
-  deleteMarker,
-  isThreadRunning,
-  listRunningThreads,
-} from "../background/index.js";
 import {
   appendThreadHistory,
   createUwfStore,
@@ -350,44 +350,115 @@ async function threadListItemFromActive(
   return { thread: threadId, workflow, head, status };
 }
 
-export async function cmdThreadList(
+async function collectActiveThreads(
   storageRoot: string,
-  statusFilter: ThreadStatus | null,
+  uwf: UwfStore,
+  index: ThreadsIndex,
 ): Promise<ThreadListItemWithStatus[]> {
-  const uwf = await createUwfStore(storageRoot);
-  const index = await loadThreadsIndex(storageRoot);
   const items: ThreadListItemWithStatus[] = [];
-
-  // Add active threads
   for (const [threadId, head] of Object.entries(index)) {
-    const item = await threadListItemFromActive(storageRoot, uwf, threadId as ThreadId, head);
+    const item = await threadListItemFromActive(
+      storageRoot,
+      uwf,
+      threadId as ThreadId,
+      head as CasRef,
+    );
     if (item !== null) {
       items.push(item);
     }
   }
+  return items;
+}
 
-  // Add completed threads if requested
+async function collectCompletedThreads(
-  if (statusFilter === "completed" || statusFilter === null) {
+  storageRoot: string,
-    const activeIds = new Set(items.map((i) => i.thread));
+  activeIds: Set<ThreadId>,
-    const history = await loadThreadHistory(storageRoot);
+): Promise<ThreadListItemWithStatus[]> {
-    for (const entry of history) {
+  const items: ThreadListItemWithStatus[] = [];
-      if (!activeIds.has(entry.thread)) {
+  const history = await loadThreadHistory(storageRoot);
-        items.push({
+  const seen = new Set<ThreadId>(); // Deduplication (issue #470)
-          thread: entry.thread,
+  for (const entry of history) {
-          workflow: entry.workflow,
+    if (!activeIds.has(entry.thread) && !seen.has(entry.thread)) {
-          head: entry.head,
+      seen.add(entry.thread);
-          status: "completed",
+      items.push({
-        });
+        thread: entry.thread,
-      }
+        workflow: entry.workflow,
+        head: entry.head,
+        status: "completed",
+      });
     }
   }
+  return items;
+}
 
-  // Apply status filter if provided
+function applyTimeFilters(
-  if (statusFilter !== null) {
+  items: ThreadListItemWithStatus[],
-    return items.filter((item) => item.status === statusFilter);
+  afterMs: number | null,
+  beforeMs: number | null,
+): ThreadListItemWithStatus[] {
+  if (afterMs === null && beforeMs === null) return items;
+  return items.filter((item) => {
+    const ts = extractUlidTimestamp(item.thread);
+    if (ts === null) return false;
+    if (afterMs !== null && ts <= afterMs) return false;
+    if (beforeMs !== null && ts >= beforeMs) return false;
+    return true;
+  });
+}
+
+function sortByNewestFirst(items: ThreadListItemWithStatus[]): ThreadListItemWithStatus[] {
+  return items.sort((a, b) => {
+    const tsA = extractUlidTimestamp(a.thread) ?? 0;
+    const tsB = extractUlidTimestamp(b.thread) ?? 0;
+    return tsB - tsA;
+  });
+}
+
+function applyPagination(
+  items: ThreadListItemWithStatus[],
+  skip: number | null,
+  take: number | null,
+): ThreadListItemWithStatus[] {
+  const skipCount = skip ?? 0;
+  const takeCount = take ?? items.length;
+  return items.slice(skipCount, skipCount + takeCount);
+}
+
+export async function cmdThreadList(
+  storageRoot: string,
+  statusFilter: ThreadStatus[] | null,
+  afterMs: number | null,
+  beforeMs: number | null,
+  skip: number | null,
+  take: number | null,
+): Promise<ThreadListItemWithStatus[]> {
+  const uwf = await createUwfStore(storageRoot);
+  const index = await loadThreadsIndex(storageRoot);
+
+  // Collect active threads
+  let items = await collectActiveThreads(storageRoot, uwf, index);
+
+  // Collect completed threads (if relevant for status filter)
+  const includeCompleted = statusFilter === null || statusFilter.includes("completed");
+  if (includeCompleted) {
+    const activeIds = new Set(items.map((i) => i.thread));
+    const completedItems = await collectCompletedThreads(storageRoot, activeIds);
+    items = items.concat(completedItems);
   }
 
-  return items;
+  // Apply status filter
+  if (statusFilter !== null) {
+    items = items.filter((item) => statusFilter.includes(item.status));
+  }
+
+  // Apply time range filters
+  items = applyTimeFilters(items, afterMs, beforeMs);
+
+  // Sort by timestamp descending (newest first)
+  items = sortByNewestFirst(items);
+
+  // Apply pagination
+  return applyPagination(items, skip, take);
 }
 
 function formatYaml(value: unknown): string {
@@ -578,6 +649,7 @@ function buildModeratorContext(uwf: UwfStore, chain: ChainState): ModeratorConte
     detail: step.detail,
     agent: step.agent,
     edgePrompt: step.edgePrompt ?? "",
+    content: null, // Moderator doesn't need content
   }));
   return { start: chain.start, steps };
 }
@@ -1016,8 +1088,3 @@ export async function cmdThreadCancel(
 
   return { thread: threadId, cancelled: true };
 }
-
-export async function cmdThreadRunning(storageRoot: string): Promise<RunningThreadsOutput> {
-  const threads = await listRunningThreads(storageRoot);
-  return { threads };
-}

packages/workflow-agent-claude-code/package.json

@@ -22,7 +22,8 @@
   },
   "dependencies": {
     "@uncaged/json-cas": "^0.4.0",
-    "@uncaged/workflow-agent-kit": "workspace:^"
+    "@uncaged/workflow-agent-kit": "workspace:^",
+    "@uncaged/workflow-util": "workspace:^"
   },
   "devDependencies": {
     "typescript": "^5.8.3"

packages/workflow-agent-hermes/__tests__/hermes-prompt.test.ts

@@ -23,7 +23,7 @@ function makeCtx(overrides: Partial<AgentContext> = {}): AgentContext {
       graph: {},
     },
     role: "developer",
-    start: { prompt: "Fix the bug", workflowHash: "abc123", threadId: "t1" },
+    start: { prompt: "Fix the bug", workflow: "abc123" },
     steps: [],
     store: {} as AgentContext["store"],
     outputFormatInstruction: "Use YAML frontmatter",
@@ -55,6 +55,7 @@ describe("buildHermesPrompt", () => {
           agent: "uwf-hermes",
           detail: "detail-1",
           edgePrompt: "Implement the fix.",
+          content: null,
         },
         {
           role: "reviewer",
@@ -62,6 +63,7 @@ describe("buildHermesPrompt", () => {
           agent: "uwf-hermes",
           detail: "detail-2",
           edgePrompt: "Review the code.",
+          content: null,
         },
       ],
     });
@@ -85,6 +87,7 @@ describe("buildHermesPrompt", () => {
             agent: "uwf-hermes",
             detail: "detail-1",
             edgePrompt: "First attempt.",
+            content: null,
           },
         ],
         edgePrompt: "Retry with a fresh approach.",
@@ -95,4 +98,90 @@ describe("buildHermesPrompt", () => {
     expect(result).toContain("Retry with a fresh approach.");
     expect(result).not.toContain("## What Happened Since Your Last Turn");
   });
+
+  test("first visit includes content from previous steps", () => {
+    const ctx = makeCtx({
+      isFirstVisit: true,
+      steps: [
+        {
+          role: "planner",
+          output: { plan: "hash1" },
+          agent: "uwf-hermes",
+          detail: "detail-1",
+          edgePrompt: "Create the plan.",
+          content: "# Plan\nDetailed plan markdown...",
+        },
+        {
+          role: "developer",
+          output: { files: ["app.ts"] },
+          agent: "uwf-hermes",
+          detail: "detail-2",
+          edgePrompt: "Implement the code.",
+          content: "# Implementation\nCode changes...",
+        },
+        {
+          role: "reviewer",
+          output: { approved: true },
+          agent: "uwf-hermes",
+          detail: "detail-3",
+          edgePrompt: "Review the work.",
+          content: "# Review\nApproved!",
+        },
+      ],
+      role: "committer",
+      edgePrompt: "Commit the reviewed code.",
+    });
+
+    const result = buildHermesPrompt(ctx);
+
+    expect(result).toContain("Use YAML frontmatter");
+    expect(result).toContain("## Task");
+    expect(result).toContain("Fix the bug");
+    expect(result).toContain("## What Happened Since Your Last Turn");
+    expect(result).toContain("### Step 1: planner");
+    expect(result).toContain("#### Step Content");
+    expect(result).toContain("# Plan");
+    expect(result).toContain("Detailed plan markdown");
+    expect(result).toContain("### Step 2: developer");
+    expect(result).toContain("# Implementation");
+    expect(result).toContain("### Step 3: reviewer");
+    expect(result).toContain("# Review");
+    expect(result).toContain("## Moderator Instruction");
+    expect(result).toContain("Commit the reviewed code.");
+  });
+
+  test("re-entry omits content from previous steps", () => {
+    const ctx = makeCtx({
+      isFirstVisit: false,
+      steps: [
+        {
+          role: "developer",
+          output: { files: ["app.ts"] },
+          agent: "uwf-hermes",
+          detail: "detail-1",
+          edgePrompt: "Implement the code.",
+          content: "# Implementation\nCode changes...",
+        },
+        {
+          role: "reviewer",
+          output: { approved: false },
+          agent: "uwf-hermes",
+          detail: "detail-2",
+          edgePrompt: "Review the work.",
+          content: "# Review\nNot approved!",
+        },
+      ],
+      role: "developer",
+      edgePrompt: "Fix the issues.",
+    });
+
+    const result = buildHermesPrompt(ctx);
+
+    expect(result).toContain("## What Happened Since Your Last Turn");
+    expect(result).toContain("### Step 2: reviewer");
+    expect(result).toContain(JSON.stringify({ approved: false }));
+    expect(result).not.toContain("#### Step Content");
+    expect(result).not.toContain("# Review");
+    expect(result).not.toContain("Not approved!");
+  });
 });

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

@@ -14,53 +14,39 @@ import { storeHermesSessionDetail } from "./session-detail.js";
 
 const log = createLogger({ sink: { kind: "stderr" } });
 
-function buildHistorySummary(steps: AgentContext["steps"]): string {
+/** Assemble system prompt, task, and prior step outputs for Hermes. */
-  if (steps.length === 0) {
+export function buildHermesPrompt(ctx: AgentContext): string {
-    return "";
-  }
-
-  const lines: string[] = ["## Previous Steps"];
-  for (let i = 0; i < steps.length; i++) {
-    const step = steps[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");
-}
-
-function buildInitialPrompt(ctx: AgentContext): string {
-  const roleDef = ctx.workflow.roles[ctx.role];
-  const rolePrompt = roleDef !== undefined ? buildRolePrompt(roleDef) : "";
   const parts: string[] = [];
+
   if (ctx.outputFormatInstruction !== "") {
     parts.push(ctx.outputFormatInstruction, "");
   }
-  parts.push(rolePrompt, "", "## Task", ctx.start.prompt);
-  const historyBlock = buildHistorySummary(ctx.steps);
-  if (historyBlock !== "") {
-    parts.push("", historyBlock);
-  }
-  parts.push("", "## Moderator Instruction", "", ctx.edgePrompt);
-  return parts.join("\n");
-}
 
-/** Assemble system prompt, task, and prior step outputs for Hermes. */
-export function buildHermesPrompt(ctx: AgentContext): string {
   if (!ctx.isFirstVisit) {
-    const parts: string[] = [];
+    // Re-entry: show only steps since last visit, meta only
-    if (ctx.outputFormatInstruction !== "") {
-      parts.push(ctx.outputFormatInstruction, "");
-    }
     parts.push(buildContinuationPrompt(ctx.steps, ctx.role, ctx.edgePrompt));
     return parts.join("\n");
   }
 
-  return buildInitialPrompt(ctx);
+  // First visit: show initial context with content for recent steps
+  const roleDef = ctx.workflow.roles[ctx.role];
+  const rolePrompt = roleDef !== undefined ? buildRolePrompt(roleDef) : "";
+  parts.push(rolePrompt, "", "## Task", ctx.start.prompt);
+
+  // Add history with content (last 2-3 steps within quota)
+  if (ctx.steps.length > 0) {
+    parts.push(
+      "",
+      buildContinuationPrompt(ctx.steps, ctx.role, ctx.edgePrompt, {
+        includeContent: true,
+        quota: 32000, // Use THREAD_READ_DEFAULT_QUOTA equivalent
+      }),
+    );
+  } else {
+    parts.push("", "## Moderator Instruction", "", ctx.edgePrompt);
+  }
+
+  return parts.join("\n");
 }
 
 async function storePromptResult(

packages/workflow-agent-kit/README.md

@@ -83,9 +83,10 @@ Requires `UWF_EDGE_PROMPT` in the environment (set by `uwf thread step`).
 function buildRolePrompt(role: RoleDefinition): string
 function buildOutputFormatInstruction(schema: JSONSchema): string
 function buildContinuationPrompt(
-  ctx: AgentContext,
+  steps: StepContext[],
-  priorOutput: string,
+  role: string,
-  instruction: string,
+  edgePrompt: string,
+  options?: { includeContent?: boolean; quota?: number },
 ): string
 ```
 

packages/workflow-agent-kit/__tests__/build-continuation-prompt.test.ts

@@ -8,6 +8,7 @@ const reviewerStep: StepContext = {
   detail: "2MXBG6PN4A8JR",
   agent: "uwf-hermes",
   edgePrompt: "Review the developer's work.",
+  content: null,
 };
 
 const developerStep: StepContext = {
@@ -16,6 +17,7 @@ const developerStep: StepContext = {
   detail: "1VPBG9SM5E7WK",
   agent: "uwf-hermes",
   edgePrompt: "Implement the fix.",
+  content: null,
 };
 
 describe("buildContinuationPrompt", () => {
@@ -29,6 +31,7 @@ describe("buildContinuationPrompt", () => {
         detail: "7BQST3VW9F2MA",
         agent: "uwf-hermes",
         edgePrompt: "Revise the plan.",
+        content: null,
       },
     ];
 
@@ -70,4 +73,162 @@ describe("buildContinuationPrompt", () => {
     expect(result).toContain("## Moderator Instruction");
     expect(result).toContain("Please revise your work.");
   });
+
+  test("includes step content when includeContent option is true", () => {
+    const stepsWithContent: StepContext[] = [
+      {
+        role: "planner",
+        output: { plan: "hash123" },
+        detail: "detail1",
+        agent: "uwf-hermes",
+        edgePrompt: "",
+        content: "# Plan\nDetailed plan markdown...",
+      },
+      {
+        role: "developer",
+        output: { filesChanged: ["app.ts"] },
+        detail: "detail2",
+        agent: "uwf-hermes",
+        edgePrompt: "",
+        content: "# Implementation\nCode changes...",
+      },
+      {
+        role: "reviewer",
+        output: { approved: false },
+        detail: "detail3",
+        agent: "uwf-hermes",
+        edgePrompt: "",
+        content: "# Review\nFeedback...",
+      },
+    ];
+
+    const result = buildContinuationPrompt(stepsWithContent, "committer", "Commit the changes.", {
+      includeContent: true,
+    });
+
+    expect(result).toContain("## What Happened Since Your Last Turn");
+    expect(result).toContain("### Step 1: planner");
+    expect(result).toContain("#### Step Content");
+    expect(result).toContain("# Plan");
+    expect(result).toContain("Detailed plan markdown");
+    expect(result).toContain("### Step 2: developer");
+    expect(result).toContain("# Implementation");
+    expect(result).toContain("### Step 3: reviewer");
+    expect(result).toContain("# Review");
+    expect(result).toContain("## Moderator Instruction");
+    expect(result).toContain("Commit the changes.");
+  });
+
+  test("omits step content when includeContent is false (default)", () => {
+    const stepsWithContent: StepContext[] = [
+      {
+        role: "developer",
+        output: { filesChanged: ["app.ts"] },
+        detail: "detail1",
+        agent: "uwf-hermes",
+        edgePrompt: "",
+        content: "# Implementation\nCode changes...",
+      },
+      {
+        role: "reviewer",
+        output: { approved: false },
+        detail: "detail2",
+        agent: "uwf-hermes",
+        edgePrompt: "",
+        content: "# Review\nFeedback...",
+      },
+    ];
+
+    const result = buildContinuationPrompt(stepsWithContent, "developer", "Fix the issues.");
+
+    expect(result).toContain("## What Happened Since Your Last Turn");
+    expect(result).toContain("### Step 2: reviewer");
+    expect(result).toContain(JSON.stringify(stepsWithContent[1]?.output));
+    expect(result).not.toContain("#### Step Content");
+    expect(result).not.toContain("# Review");
+  });
+
+  test("respects quota when includeContent is true", () => {
+    const largeContent = "x".repeat(5000);
+    const stepsWithContent: StepContext[] = [
+      {
+        role: "planner",
+        output: { plan: "hash1" },
+        detail: "detail1",
+        agent: "uwf-hermes",
+        edgePrompt: "",
+        content: largeContent,
+      },
+      {
+        role: "developer",
+        output: { files: ["app.ts"] },
+        detail: "detail2",
+        agent: "uwf-hermes",
+        edgePrompt: "",
+        content: largeContent,
+      },
+      {
+        role: "reviewer",
+        output: { approved: true },
+        detail: "detail3",
+        agent: "uwf-hermes",
+        edgePrompt: "",
+        content: "# Review\nLooks good!",
+      },
+    ];
+
+    const result = buildContinuationPrompt(stepsWithContent, "committer", "Commit the changes.", {
+      includeContent: true,
+      quota: 1000,
+    });
+
+    // Should include most recent step(s) within quota
+    expect(result).toContain("### Step 1: reviewer"); // Showing 1 of 3, so step 3 becomes step 1
+    expect(result).toContain("#### Step Content");
+    expect(result).toContain("## Moderator Instruction");
+    expect(result).toContain("Showing 1 of 3 steps (2 omitted due to quota)");
+  });
+
+  test("handles null content gracefully when includeContent is true", () => {
+    const stepsWithMixedContent: StepContext[] = [
+      {
+        role: "planner",
+        output: { plan: "hash1" },
+        detail: "detail1",
+        agent: "uwf-hermes",
+        edgePrompt: "",
+        content: "# Plan\nDetails...",
+      },
+      {
+        role: "developer",
+        output: { files: ["app.ts"] },
+        detail: "detail2",
+        agent: "uwf-hermes",
+        edgePrompt: "",
+        content: null, // No content available
+      },
+      {
+        role: "reviewer",
+        output: { approved: true },
+        detail: "detail3",
+        agent: "uwf-hermes",
+        edgePrompt: "",
+        content: "# Review\nApproved!",
+      },
+    ];
+
+    const result = buildContinuationPrompt(
+      stepsWithMixedContent,
+      "committer",
+      "Commit the changes.",
+      { includeContent: true },
+    );
+
+    expect(result).toContain("### Step 1: planner");
+    expect(result).toContain("# Plan");
+    expect(result).toContain("### Step 2: developer");
+    // Step 2 should not have content section since content is null
+    expect(result).toContain("### Step 3: reviewer");
+    expect(result).toContain("# Review");
+  });
 });

packages/workflow-agent-kit/__tests__/context.test.ts

@@ -0,0 +1,14 @@
+import { describe, expect, test } from "vitest";
+
+// We need to test buildHistory indirectly through buildContext
+// since buildHistory is not exported. For now, we'll test the integration
+// through the public API in a separate integration test.
+
+describe("context module - content extraction", () => {
+  test("placeholder - content extraction will be tested via integration tests", () => {
+    // This test is a placeholder. The actual testing of content extraction
+    // will be done through integration tests in build-continuation-prompt.test.ts
+    // where we can verify that StepContext objects have the correct content field.
+    expect(true).toBe(true);
+  });
+});

packages/workflow-agent-kit/src/build-continuation-prompt.ts

@@ -1,11 +1,20 @@
 import type { StepContext } from "@uncaged/workflow-protocol";
 
-function formatStep(step: StepContext, stepNumber: number): string {
+function formatStep(step: StepContext, stepNumber: number, includeContent: boolean): string {
-  return [
+  const lines = [
     `### Step ${stepNumber}: ${step.role}`,
     `Output: ${JSON.stringify(step.output)}`,
     `Agent: ${step.agent}`,
-  ].join("\n");
+  ];
+
+  if (includeContent && step.content !== null) {
+    lines.push("");
+    lines.push("#### Step Content");
+    lines.push("");
+    lines.push(step.content);
+  }
+
+  return lines.join("\n");
 }
 
 function findLastRoleIndex(steps: StepContext[], role: string): number {
@@ -18,6 +27,45 @@ function findLastRoleIndex(steps: StepContext[], role: string): number {
   return -1;
 }
 
+function selectStepsWithinQuota(steps: StepContext[], quota: number): StepContext[] {
+  const selected: StepContext[] = [];
+  let totalChars = 0;
+
+  // Work backwards (newest first)
+  for (let i = steps.length - 1; i >= 0; i--) {
+    const step = steps[i];
+    if (step === undefined) continue;
+
+    // Estimate size: meta + content
+    const metaSize = JSON.stringify({
+      role: step.role,
+      output: step.output,
+      agent: step.agent,
+    }).length;
+    const contentSize = step.content?.length ?? 0;
+    const stepSize = metaSize + contentSize;
+
+    if (totalChars + stepSize > quota && selected.length > 0) {
+      // Stop adding steps but keep at least 1
+      break;
+    }
+
+    selected.unshift(step); // Keep chronological order
+    totalChars += stepSize;
+
+    if (totalChars >= quota) {
+      break;
+    }
+  }
+
+  return selected;
+}
+
+type BuildContinuationPromptOptions = {
+  includeContent?: boolean;
+  quota?: number;
+};
+
 /**
  * Build a continuation prompt for a role re-entry.
  *
@@ -28,7 +76,11 @@ export function buildContinuationPrompt(
   steps: StepContext[],
   role: string,
   edgePrompt: string,
+  options?: BuildContinuationPromptOptions,
 ): string {
+  const includeContent = options?.includeContent ?? false;
+  const quota = options?.quota ?? Number.POSITIVE_INFINITY;
+
   const lastIndex = findLastRoleIndex(steps, role);
   const sinceSteps = lastIndex >= 0 ? steps.slice(lastIndex + 1) : steps;
 
@@ -37,13 +89,25 @@ export function buildContinuationPrompt(
   if (sinceSteps.length > 0) {
     parts.push("## What Happened Since Your Last Turn");
     const baseStepNumber = lastIndex >= 0 ? lastIndex + 2 : 1;
-    for (let i = 0; i < sinceSteps.length; i++) {
+
-      const step = sinceSteps[i];
+    // Select steps within quota (newest-first if includeContent = true)
+    const selectedSteps = includeContent ? selectStepsWithinQuota(sinceSteps, quota) : sinceSteps;
+
+    const skippedCount = sinceSteps.length - selectedSteps.length;
+    if (skippedCount > 0) {
+      parts.push("");
+      parts.push(
+        `_Showing ${selectedSteps.length} of ${sinceSteps.length} steps (${skippedCount} omitted due to quota)_`,
+      );
+    }
+
+    for (let i = 0; i < selectedSteps.length; i++) {
+      const step = selectedSteps[i];
       if (step === undefined) {
         continue;
       }
       parts.push("");
-      parts.push(formatStep(step, baseStepNumber + i));
+      parts.push(formatStep(step, baseStepNumber + i, includeContent));
     }
     parts.push("");
   }

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

@@ -82,6 +82,38 @@ function expandOutput(store: Store, outputRef: CasRef): unknown {
   return node.payload;
 }
 
+function extractStepContent(store: Store, detailRef: CasRef): string | null {
+  const detailNode = store.get(detailRef);
+  if (detailNode === null) {
+    return null;
+  }
+  const detail = detailNode.payload as Record<string, unknown>;
+  const turns = detail.turns;
+  if (!Array.isArray(turns) || turns.length === 0) {
+    return null;
+  }
+  // Find last assistant content (same logic as extractLastAssistantContent in cli-workflow)
+  for (let i = turns.length - 1; i >= 0; i--) {
+    const turnRef = turns[i];
+    if (typeof turnRef !== "string") {
+      continue;
+    }
+    const turnNode = store.get(turnRef as CasRef);
+    if (turnNode === null) {
+      continue;
+    }
+    const turn = turnNode.payload as Record<string, unknown>;
+    if (
+      turn.role === "assistant" &&
+      typeof turn.content === "string" &&
+      turn.content.trim() !== ""
+    ) {
+      return turn.content;
+    }
+  }
+  return null;
+}
+
 async function buildHistory(
   store: Store,
   stepsNewestFirst: StepNodePayload[],
@@ -89,12 +121,14 @@ async function buildHistory(
   const chronological = [...stepsNewestFirst].reverse();
   const history: StepContext[] = [];
   for (const step of chronological) {
+    const content = extractStepContent(store, step.detail);
     history.push({
       role: step.role,
       output: expandOutput(store, step.output),
       detail: step.detail,
       agent: step.agent,
       edgePrompt: step.edgePrompt ?? "",
+      content,
     });
   }
   return history;

packages/workflow-protocol/README.md

@@ -92,7 +92,7 @@ type StepNodePayload = StepRecord & {
 ### Moderator context
 
 ```typescript
-type StepContext = Omit<StepRecord, "output"> & { output: unknown };
+type StepContext = Omit<StepRecord, "output"> & { output: unknown; content: string | null };
 
 type ModeratorContext = {
   start: StartNodePayload;

packages/workflow-protocol/src/types.ts

@@ -63,6 +63,7 @@ export type StepNodePayload = StepRecord & {
 /** JSONata 上下文中的 step — output 被展开 */
 export type StepContext = Omit<StepRecord, "output"> & {
   output: unknown;
+  content: string | null;
 };
 
 export type ModeratorContext = {

packages/workflow-util-agent/src/build-agent-prompt.ts

@@ -0,0 +1,64 @@
+import type { AgentContext } from "@uncaged/workflow-runtime";
+
+/** Max characters of step content to include in the prompt. */
+const CONTENT_QUOTA = 16_000;
+
+/** Builds the full agent prompt: system instructions plus summarized thread history. */
+export async function buildAgentPrompt(ctx: AgentContext): Promise<string> {
+  const lines: string[] = [];
+  lines.push(ctx.currentRole.systemPrompt);
+  lines.push("");
+  lines.push("## Task");
+  lines.push(ctx.start.content);
+
+  const { steps } = ctx;
+  if (steps.length === 0) {
+    return lines.join("\n");
+  }
+
+  if (steps.length === 1) {
+    const s = steps[0];
+    lines.push("");
+    lines.push(`## Step: ${s.role}`);
+    lines.push("");
+    lines.push(`Meta: ${JSON.stringify(s.meta)}`);
+    appendContent(lines, s.content);
+  } else {
+    lines.push("");
+    lines.push("## Previous Steps");
+    for (let i = 0; i < steps.length - 1; i++) {
+      const s = steps[i];
+      lines.push("");
+      lines.push(`### Step ${i + 1}: ${s.role}`);
+      lines.push(`Summary: ${JSON.stringify(s.meta)}`);
+    }
+    const last = steps[steps.length - 1];
+    lines.push("");
+    lines.push(`## Latest Step: ${last.role}`);
+    lines.push("");
+    lines.push(`Meta: ${JSON.stringify(last.meta)}`);
+    appendContent(lines, last.content);
+  }
+
+  lines.push("");
+  lines.push("## Tools");
+  lines.push(
+    `Use \`uncaged-workflow thread ${ctx.threadId}\` to read full details of any previous step.`,
+  );
+
+  return lines.join("\n");
+}
+
+function appendContent(lines: string[], content: string | null | undefined): void {
+  if (content === null || content === undefined || content.trim() === "") {
+    return;
+  }
+  const truncated =
+    content.length > CONTENT_QUOTA
+      ? `${content.slice(0, CONTENT_QUOTA)}\n... (truncated)`
+      : content;
+  lines.push("");
+  lines.push("<output>");
+  lines.push(truncated);
+  lines.push("</output>");
+}

packages/workflow-util/README.md

@@ -23,6 +23,7 @@ All exports come from `src/index.ts`.
 ```typescript
 function encodeUint64AsCrockford(value: bigint): string
 function generateUlid(nowMs: number): string
+function extractUlidTimestamp(ulid: string): number | null
 ```
 
 ### Logging

packages/workflow-util/src/__tests__/ulid-timestamp.test.ts

@@ -0,0 +1,55 @@
+import { describe, expect, it } from "bun:test";
+import { extractUlidTimestamp, generateUlid } from "../ulid.js";
+
+describe("extractUlidTimestamp", () => {
+  it("should extract correct timestamp from ULID", () => {
+    const knownTimestamp = Date.UTC(2026, 4, 20, 0, 0, 0);
+    const ulid = generateUlid(knownTimestamp);
+    const extracted = extractUlidTimestamp(ulid);
+    expect(extracted).toBe(knownTimestamp);
+  });
+
+  it("should handle epoch timestamp (timestamp 0)", () => {
+    const ulid = generateUlid(0);
+    const extracted = extractUlidTimestamp(ulid);
+    expect(extracted).toBe(0);
+  });
+
+  it("should handle recent timestamps", () => {
+    const recentTimestamp = Date.now();
+    const ulid = generateUlid(recentTimestamp);
+    const extracted = extractUlidTimestamp(ulid);
+    expect(extracted).toBe(recentTimestamp);
+  });
+
+  it("should handle max 48-bit timestamp", () => {
+    const maxTimestamp = 2 ** 48 - 1;
+    const ulid = generateUlid(maxTimestamp);
+    const extracted = extractUlidTimestamp(ulid);
+    expect(extracted).toBe(maxTimestamp);
+  });
+
+  it("should return null for invalid ULID length", () => {
+    expect(extractUlidTimestamp("")).toBe(null);
+    expect(extractUlidTimestamp("TOOSHORT")).toBe(null);
+    expect(extractUlidTimestamp("TOOLONGAAAAAAAAAAAAAAAAAA")).toBe(null);
+  });
+
+  it("should return null for invalid Crockford Base32 characters", () => {
+    expect(extractUlidTimestamp("INVALID!@#$%^&CHARACTERS")).toBe(null);
+  });
+
+  it("should extract timestamps from multiple ULIDs correctly", () => {
+    const timestamps = [
+      Date.UTC(2020, 0, 1, 0, 0, 0),
+      Date.UTC(2023, 5, 15, 12, 30, 45),
+      Date.UTC(2026, 11, 31, 23, 59, 59),
+    ];
+
+    for (const ts of timestamps) {
+      const ulid = generateUlid(ts);
+      const extracted = extractUlidTimestamp(ulid);
+      expect(extracted).toBe(ts);
+    }
+  });
+});

packages/workflow-util/src/cli-reference.ts

@@ -15,7 +15,7 @@ uwf setup --provider <name> --base-url <url> \\
 ## Workflow Commands
 
 \`\`\`
-uwf workflow put <file>           # register a workflow from YAML file
+uwf workflow add <file>           # register a workflow from YAML file
 uwf workflow show <id>            # show workflow by name or CAS hash
 uwf workflow list                 # list all registered workflows
 \`\`\`
@@ -24,20 +24,27 @@ uwf workflow list                 # list all registered workflows
 
 \`\`\`
 uwf thread start <workflow> -p <prompt>           # create a thread (no execution)
-uwf thread step <thread-id>                       # execute one moderator→agent→extract cycle
+uwf thread exec <thread-id>                       # execute one moderator→agent→extract cycle
                [--agent <cmd>]                    # override agent command
                [-c, --count <number>]             # run multiple steps (default: 1)
+               [--background]                     # run in background
 uwf thread show <thread-id>                       # show thread head pointer
-uwf thread list                                   # list active threads
+uwf thread list                                   # list threads
-               [--all]                            # include archived threads
+               [--status <status>]                # filter: idle, running, or completed
-uwf thread kill <thread-id>                       # terminate and archive a thread
-uwf thread steps <thread-id>                      # list all steps in a thread
 uwf thread read <thread-id>                       # render thread context as markdown
                [--quota <chars>]                  # max output characters (default 32000)
                [--before <step-hash>]             # load steps before this hash (exclusive)
                [--start]                          # include start step in output
-uwf thread fork <step-hash>                       # fork a thread from a specific step
+uwf thread stop <thread-id>                       # stop background execution (keep thread active)
-uwf thread step-details <step-hash>               # dump full detail node of a step as YAML
+uwf thread cancel <thread-id>                     # cancel thread (stop + move to history)
+\`\`\`
+
+## Step Commands
+
+\`\`\`
+uwf step list <thread-id>        # list all steps in a thread
+uwf step show <step-hash>        # show details of a specific step
+uwf step fork <step-hash>        # fork a thread from a specific step
 \`\`\`
 
 ## CAS Commands
@@ -78,10 +85,9 @@ uwf -V, --version                 # print version
 ## Key Concepts
 
 - **Workflow**: YAML definition with roles, conditions, and a routing graph; stored as a CAS node identified by its XXH64 hash.
-- **Thread**: A single workflow execution (ULID). State is an immutable CAS chain; active threads are indexed in \`threads.yaml\`.
+- **Thread**: A running instance of a workflow; points to a chain of CAS step nodes.
-- **Step**: One moderator→agent→extract cycle. Run \`uwf thread step\` repeatedly until \`$END\`.
+- **Step**: One moderator→agent→extract cycle; stored as a CAS node with output + detail refs.
-- **CAS**: Content-Addressed Storage — all nodes are immutable and identified by hash.
+- **Turn**: Agent-internal interaction (within a single step); stored per-turn in the detail node.
-- **Role**: Named actor with goal, capabilities, procedure, output, and frontmatter schema; the moderator routes between roles.
+- **CAS**: Content-addressable store; every artifact (workflows, steps, details, turns) is hashed.
-- **Edge Prompt**: Required instruction on each graph edge — the moderator's dispatch message to the agent.
 `;
 }

packages/workflow-util/src/index.ts

@@ -24,4 +24,4 @@ export { normalizeRefsField } from "./refs-field.js";
 export { err, ok } from "./result.js";
 export { getDefaultWorkflowStorageRoot, getGlobalCasDir } from "./storage-root.js";
 export type { LogFn, Result } from "./types.js";
-export { generateUlid } from "./ulid.js";
+export { extractUlidTimestamp, generateUlid } from "./ulid.js";

packages/workflow-util/src/ulid.ts

@@ -1,4 +1,4 @@
-import { encodeCrockfordBase32Bits } from "./base32.js";
+import { decodeCrockfordBase32Bits, encodeCrockfordBase32Bits } from "./base32.js";
 
 const ULID_TIME_BITS = 48;
 const ULID_RANDOM_BITS = 80;
@@ -26,3 +26,19 @@ export function generateUlid(nowMs: number): string {
   const payload = (time << BigInt(ULID_RANDOM_BITS)) | rand;
   return encodeCrockfordBase32Bits(payload, ULID_TIME_BITS + ULID_RANDOM_BITS);
 }
+
+/**
+ * Extract the timestamp (in milliseconds) from a ULID string.
+ * Returns null if the ULID is invalid.
+ */
+export function extractUlidTimestamp(ulid: string): number | null {
+  if (ulid.length !== 26) {
+    return null;
+  }
+  const timestampPart = ulid.slice(0, 10);
+  const decoded = decodeCrockfordBase32Bits(timestampPart, ULID_TIME_BITS);
+  if (!decoded.ok) {
+    return null;
+  }
+  return Number(decoded.value);
+}