refactor(core): remove WorkflowTrigger from SenseTrigger — shell only

Senses trigger shell commands only. Workflows are invoked via CLI.

SenseTrigger is now { command: string } — no discriminated union.

Closes #318

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/cli/skills/claude/CLAUDE.md

@@ -212,10 +212,10 @@ extract:
 
 ### compute 函数签名
 
-Sense 的 `compute` 接收当前状态，返回新状态和可选的 workflow trigger。状态以 JSON 文件持久化在 `data/senses/<name>.json`。
+Sense 的 `compute` 接收当前状态，返回新状态和可选的 shell trigger（`{ command: string }`）。状态以 JSON 文件持久化在 `data/senses/<name>.json`。Workflow 只能通过 CLI / daemon IPC 启动，不能从 sense 返回值直接启动。
 
 ```typescript
-import type { SenseComputeFn, WorkflowTrigger } from "@uncaged/nerve-core";
+import type { SenseComputeFn } from "@uncaged/nerve-core";
 
 type MyState = {
   lastRun: number | null;
@@ -226,7 +226,7 @@ export const initialState: MyState = { lastRun: null, count: 0 };
 
 export async function compute(state: MyState): Promise<{
   state: MyState;
-  trigger: WorkflowTrigger | null;
+  trigger: { command: string } | null;
 }> {
   return {
     state: { lastRun: Date.now(), count: state.count + 1 },
@@ -247,15 +247,9 @@ export async function compute(state: MyState): Promise<{
 ### 返回值
 
 ```typescript
-// trigger: null → 不触发 workflow
-// trigger: WorkflowTrigger → 触发 workflow
-
-type WorkflowTrigger = {
-  name: string;          // workflow 名称（对应 nerve.yaml 中的 key）
-  maxRounds: number;     // moderator 最大轮次
-  prompt: string;        // 初始 prompt
-  dryRun: boolean;       // 干跑模式
-};
+// trigger: null → 不执行 shell 命令
+// trigger: { command } → sense worker 在成功的 compute 后以 shell 执行该命令（cwd = nerve 根目录）
+// 启动 workflow：在 shell 中调用 `nerve workflow trigger ...`，或使用 daemon IPC / HTTP API
 ```
 
 ### Sense 模块导出
@@ -271,7 +265,7 @@ export const initialState: MyState = { ... };
 // 2. compute 函数
 export async function compute(state: MyState): Promise<{
   state: MyState;
-  trigger: WorkflowTrigger | null;
+  trigger: { command: string } | null;
 }> {
   // ...
 }

packages/cli/skills/cursor/.cursorrules

@@ -252,22 +252,7 @@ export async function compute(): Promise<ComputeResult<MySignalShape>> {
 
 ### 返回值
 
-```typescript
-// 返回 null = 静默，不发 signal
-// 返回非 null = 发出 signal（并写入业务表），可选触发 workflow
-type ComputeResult<T> =
-  | null
-  | { signal: T; workflow: WorkflowTrigger | null };
-
-type WorkflowTrigger = {
-  name: string;          // workflow 名称（对应 nerve.yaml 中的 key）
-  maxRounds: number;     // moderator 最大轮次
-  prompt: string;        // 初始 prompt
-  dryRun: boolean;       // 干跑模式
-};
-```
-
-若返回值是普通对象且不含 `signal` 字段，内核会按 shorthand 视为 `{ signal: payload, workflow: null }`（见 core 的 `routeSenseComputeOutput`）。
+当前引擎：`compute(state)` 返回 `{ state, trigger }`，`trigger` 为 `null` 或 `{ command: string }`（shell 命令）。Workflow 仅通过 CLI / daemon IPC 启动；类型见 `@uncaged/nerve-core` 的 `SenseComputeFn` / `SenseTrigger`。
 
 ### Sense 模块导出
 

packages/cli/skills/hermes/SKILL.md

@@ -245,22 +245,7 @@ export async function compute(): Promise<ComputeResult<MySignalShape>> {
 
 ### 返回值
 
-```typescript
-// 返回 null = 静默，不发 signal
-// 返回非 null = 发出 signal（并写入业务表），可选触发 workflow
-type ComputeResult<T> =
-  | null
-  | { signal: T; trigger: WorkflowTrigger | null };
-
-type WorkflowTrigger = {
-  name: string;          // workflow 名称（对应 nerve.yaml 中的 key）
-  maxRounds: number;     // moderator 最大轮次
-  prompt: string;        // 初始 prompt
-  dryRun: boolean;       // 干跑模式
-};
-```
-
-若返回值是普通对象且不含 `signal` 字段，内核会按 shorthand 视为 `{ signal: payload, trigger: null }`（见 core 的 `routeSenseComputeOutput`）。
+当前引擎：`compute(state)` 返回 `{ state, trigger }`，其中 `trigger` 为 `null` 或 `{ command: string }`（sense worker 内 `shell: true` 执行）。Workflow 仅通过 CLI / daemon IPC 启动，类型见 `@uncaged/nerve-core` 的 `SenseComputeFn` / `SenseTrigger`。
 
 ### Sense 模块导出
 

packages/cli/src/__tests__/e2e-harness.ts

@@ -125,29 +125,6 @@ export async function compute(state) {
 }
 `;
 
-/** First trigger launches local noop workflow; later triggers only advance idleTicks. */
-const counterIndexJsWithNoopWorkflow = `export const initialState = { launched: false, idleTicks: 0 };
-
-export async function compute(state) {
-  if (!state.launched) {
-    return {
-      state: { launched: true, idleTicks: state.idleTicks },
-      trigger: {
-        kind: "workflow",
-        name: "noop",
-        maxRounds: 3,
-        prompt: "e2e-archive",
-        dryRun: false,
-      },
-    };
-  }
-  return {
-    state: { launched: state.launched, idleTicks: state.idleTicks + 1 },
-    trigger: null,
-  };
-}
-`;
-
 /** Minimal workflow: moderator ends immediately (no role rounds). */
 const noopWorkflowIndexJs = `const END = "__end__";
 export default {
@@ -205,11 +182,7 @@ function writeWorkspaceLayout(nerveRoot: string, withNoopWorkflow: boolean): voi
     withNoopWorkflow ? nerveYamlWithNoopWorkflow : nerveYamlTemplate,
     "utf8",
   );
-  writeFileSync(
-    join(nerveRoot, "dist", "senses", "counter", "index.js"),
-    withNoopWorkflow ? counterIndexJsWithNoopWorkflow : counterIndexJs,
-    "utf8",
-  );
+  writeFileSync(join(nerveRoot, "dist", "senses", "counter", "index.js"), counterIndexJs, "utf8");
   writeFileSync(
     join(nerveRoot, "dist", "workflows", "echo", "index.js"),
     echoWorkflowIndexJs,
@@ -235,8 +208,8 @@ export type TestDaemonHandle = {
 
 export type StartTestDaemonOpts = {
   /**
-   * When true, counter sense's first compute launches a local `noop` workflow (real
-   * workflow-worker child). Requires built `workflow-worker.js` next to `sense-worker.js`.
+   * When true, bundles a local `noop` workflow under `dist/workflows/noop` for tests that
+   * start runs via `nerve workflow trigger` (real workflow-worker child).
    */
   withNoopWorkflow: boolean;
 } | null;

packages/cli/src/__tests__/e2e-store-archive.test.ts

@@ -46,8 +46,14 @@ describe("e2e store archive", () => {
       daemon = await startTestDaemon({ withNoopWorkflow: true });
       linkWorkspaceDaemonIntoNerveRoot(daemon.nerveRoot);
 
-      const triggerResult = await runCli(daemon, ["sense", "trigger", "counter"]);
-      expect(triggerResult.exitCode).toBe(0);
+      const wfTrigger = await runCli(daemon, [
+        "workflow",
+        "trigger",
+        "noop",
+        "--prompt",
+        "e2e-archive",
+      ]);
+      expect(wfTrigger.exitCode).toBe(0);
 
       const logsDb = join(daemon.nerveRoot, "data", "logs.db");
       await pollUntil(() => {
@@ -101,8 +107,14 @@ describe("e2e store archive", () => {
     daemon = await startTestDaemon({ withNoopWorkflow: true });
     linkWorkspaceDaemonIntoNerveRoot(daemon.nerveRoot);
 
-    const triggerResult = await runCli(daemon, ["sense", "trigger", "counter"]);
-    expect(triggerResult.exitCode).toBe(0);
+    const wfTrigger = await runCli(daemon, [
+      "workflow",
+      "trigger",
+      "noop",
+      "--prompt",
+      "e2e-archive",
+    ]);
+    expect(wfTrigger.exitCode).toBe(0);
 
     const logsDb = join(daemon.nerveRoot, "data", "logs.db");
     await pollUntil(() => {