refactor(agents): migrate LLM/Hermes/Cursor to createAgentAdapter

- LLM: AgentFn<{prompt}> + createAgentAdapter, chatCompletionText unchanged
- Hermes: AgentFn<{prompt}> + createAgentAdapter, config validation in extract
- Cursor: AgentFn<{prompt, workspace}> + createAgentAdapter, workspace
  extraction moved to extract fn, AgentFn itself only receives resolved options

All public API signatures preserved. createTextAdapter/TextProducerFn retained.

Closes #261, Phase 2 of #252

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

@@ -1,21 +1,25 @@
 import { describe, expect, test } from "bun:test";
 import { createCursorAgent, validateCursorAgentConfig } from "../src/index.js";
 
+const baseConfig = {
+  command: "/usr/local/bin/cursor-agent",
+  model: null as string | null,
+  timeout: 0,
+  workspace: null as string | null,
+};
+
 describe("validateCursorAgentConfig", () => {
   test("accepts valid config", () => {
     const r = validateCursorAgentConfig({
-      command: "/usr/local/bin/cursor-agent",
-      model: null,
-      timeout: 0,
+      ...baseConfig,
     });
     expect(r.ok).toBe(true);
   });
 
   test("rejects non-absolute command", () => {
     const r = validateCursorAgentConfig({
+      ...baseConfig,
       command: "cursor-agent",
-      model: null,
-      timeout: 0,
     });
     expect(r.ok).toBe(false);
     if (!r.ok) {
@@ -25,28 +29,35 @@ describe("validateCursorAgentConfig", () => {
 
   test("rejects negative timeout", () => {
     const r = validateCursorAgentConfig({
-      command: "/usr/local/bin/cursor-agent",
-      model: null,
+      ...baseConfig,
       timeout: -1,
     });
     expect(r.ok).toBe(false);
   });
+
+  test("rejects non-absolute workspace when set", () => {
+    const r = validateCursorAgentConfig({
+      ...baseConfig,
+      workspace: "relative/path",
+    });
+    expect(r.ok).toBe(false);
+    if (!r.ok) {
+      expect(r.error).toContain("workspace");
+    }
+  });
 });
 
 describe("createCursorAgent", () => {
   test("returns an AdapterFn", () => {
     const agent = createCursorAgent({
-      command: "/usr/local/bin/cursor-agent",
-      model: null,
-      timeout: 0,
+      ...baseConfig,
     });
     expect(typeof agent).toBe("function");
   });
 
   test("defers validation to call time (invalid config does not throw at construction)", () => {
     const agent = createCursorAgent({
-      command: "/usr/local/bin/cursor-agent",
-      model: null,
+      ...baseConfig,
       timeout: -1,
     });
     expect(typeof agent).toBe("function");

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

@@ -1,8 +1,8 @@
-import type { WorkflowRuntime } from "@uncaged/workflow-runtime";
-import { createLogger } from "@uncaged/workflow-util";
+import type { AdapterFn, AgentFn, WorkflowRuntime } from "@uncaged/workflow-runtime";
+import { createLogger, type LogFn } from "@uncaged/workflow-util";
 import {
   buildThreadInput,
-  createTextAdapter,
+  createAgentAdapter,
   type SpawnCliError,
   spawnCli,
 } from "@uncaged/workflow-util-agent";
@@ -33,25 +33,15 @@ function resolveCursorModel(model: string | null): string {
   return model === null ? "auto" : model;
 }
 
-/** Runs `cursor-agent` with workspace extracted from thread context via runtime.extract. */
-export function createCursorAgent(config: CursorAgentConfig) {
-  const modelFlag = resolveCursorModel(config.model);
-  const timeoutMs = config.timeout > 0 ? config.timeout : null;
-  const logger = createLogger({ sink: { kind: "stderr" } });
-
-  return createTextAdapter(async (ctx, prompt, runtime: WorkflowRuntime) => {
-    const validated = validateCursorAgentConfig(config);
-    if (!validated.ok) {
-      throw new Error(validated.error);
-    }
-
-    const workspace = await extractWorkspacePath(ctx, runtime, logger);
-    if (workspace === null) {
-      throw new Error(
-        "cursor-agent: failed to extract workspace path from context. Ensure the task prompt or previous steps include a project path.",
-      );
-    }
+type CursorAgentOpt = { prompt: string; workspace: string };
 
+function createCursorAgentFn(
+  config: CursorAgentConfig,
+  modelFlag: string,
+  timeoutMs: number | null,
+  logger: LogFn,
+): AgentFn<CursorAgentOpt> {
+  return async (ctx, { prompt, workspace }) => {
     logger("R5HN3YKQ", `cursor-agent workspace: ${workspace}`);
     const threadInput = await buildThreadInput(ctx);
     const fullPrompt = `${prompt}\n\n${threadInput}`;
@@ -75,5 +65,33 @@ export function createCursorAgent(config: CursorAgentConfig) {
       throwCursorSpawnError(run.error);
     }
     return run.value;
-  });
+  };
+}
+
+/** Runs `cursor-agent` with workspace from config or extracted from thread context via runtime.extract. */
+export function createCursorAgent(config: CursorAgentConfig): AdapterFn {
+  const modelFlag = resolveCursorModel(config.model);
+  const timeoutMs = config.timeout > 0 ? config.timeout : null;
+  const logger = createLogger({ sink: { kind: "stderr" } });
+
+  return createAgentAdapter(
+    createCursorAgentFn(config, modelFlag, timeoutMs, logger),
+    async (ctx, prompt, runtime: WorkflowRuntime) => {
+      const validated = validateCursorAgentConfig(config);
+      if (!validated.ok) {
+        throw new Error(validated.error);
+      }
+
+      const workspace =
+        config.workspace !== null
+          ? config.workspace
+          : await extractWorkspacePath(ctx, runtime, logger);
+      if (workspace === null) {
+        throw new Error(
+          "cursor-agent: failed to extract workspace path from context. Ensure the task prompt or previous steps include a project path.",
+        );
+      }
+      return { prompt, workspace };
+    },
+  );
 }

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

@@ -3,4 +3,9 @@ export type CursorAgentConfig = {
   command: string;
   model: string | null;
   timeout: number;
+  /**
+   * When non-null, use this workspace directory for `cursor-agent` instead of resolving it
+   * from the thread via runtime extraction.
+   */
+  workspace: string | null;
 };

packages/workflow-agent-cursor/src/validate-config.ts

@@ -11,5 +11,8 @@ export function validateCursorAgentConfig(config: CursorAgentConfig): Result<voi
   if (config.timeout < 0) {
     return err("timeout must be a non-negative number (milliseconds); use 0 for no limit");
   }
+  if (config.workspace !== null && !isAbsolute(config.workspace)) {
+    return err("workspace must be an absolute filesystem path when set");
+  }
   return ok(undefined);
 }

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

@@ -1,7 +1,7 @@
-import type { AdapterFn } from "@uncaged/workflow-runtime";
+import type { AdapterFn, AgentFn } from "@uncaged/workflow-runtime";
 import {
   buildThreadInput,
-  createTextAdapter,
+  createAgentAdapter,
   type SpawnCliError,
   spawnCli,
 } from "@uncaged/workflow-util-agent";
@@ -11,6 +11,8 @@ import { validateHermesAgentConfig } from "./validate-config.js";
 
 const HERMES_DEFAULT_MAX_TURNS = 90;
 
+type HermesAgentOpt = { prompt: string };
+
 export type { HermesAgentConfig } from "./types.js";
 export { validateHermesAgentConfig } from "./validate-config.js";
 
@@ -29,16 +31,10 @@ function throwHermesSpawnError(error: SpawnCliError): never {
   throw new Error("hermes: unknown spawn error");
 }
 
-/** Runs `hermes chat` non-interactively with the Nerve-style argv contract (`-q`, `--yolo`, `--quiet`). */
-export function createHermesAgent(config: HermesAgentConfig): AdapterFn {
+function createHermesAgentFn(config: HermesAgentConfig): AgentFn<HermesAgentOpt> {
   const timeoutMs = config.timeout;
 
-  return createTextAdapter(async (ctx, prompt, _runtime) => {
-    const validated = validateHermesAgentConfig(config);
-    if (!validated.ok) {
-      throw new Error(validated.error);
-    }
-
+  return async (ctx, { prompt }) => {
     const threadInput = await buildThreadInput(ctx);
     const fullPrompt = `${prompt}\n\n${threadInput}`;
     const args = [
@@ -61,5 +57,16 @@ export function createHermesAgent(config: HermesAgentConfig): AdapterFn {
       throwHermesSpawnError(run.error);
     }
     return run.value;
+  };
+}
+
+/** Runs `hermes chat` non-interactively with the Nerve-style argv contract (`-q`, `--yolo`, `--quiet`). */
+export function createHermesAgent(config: HermesAgentConfig): AdapterFn {
+  return createAgentAdapter(createHermesAgentFn(config), async (_ctx, prompt, _runtime) => {
+    const validated = validateHermesAgentConfig(config);
+    if (!validated.ok) {
+      throw new Error(validated.error);
+    }
+    return { prompt };
   });
 }

packages/workflow-agent-llm/src/create-llm-adapter.ts

@@ -1,5 +1,12 @@
-import { type AdapterFn, err, type LlmProvider, ok, type Result } from "@uncaged/workflow-runtime";
-import { createTextAdapter } from "@uncaged/workflow-util-agent";
+import {
+  type AdapterFn,
+  type AgentFn,
+  err,
+  type LlmProvider,
+  ok,
+  type Result,
+} from "@uncaged/workflow-runtime";
+import { createAgentAdapter } from "@uncaged/workflow-util-agent";
 
 /** OpenAI chat completion message shape (passed to `/chat/completions`). */
 export type LlmMessage = { role: "system" | "user" | "assistant"; content: string };
@@ -91,9 +98,10 @@ export async function chatCompletionText(options: {
   return parseAssistantText(res.value);
 }
 
-/** Single-turn chat adapter: system prompt is passed by the workflow engine. */
-export function createLlmAdapter(provider: LlmProvider): AdapterFn {
-  return createTextAdapter(async (ctx, prompt, _runtime) => {
+type LlmAgentOpt = { prompt: string };
+
+function createLlmAgent(provider: LlmProvider): AgentFn<LlmAgentOpt> {
+  return async (ctx, { prompt }) => {
     const result = await chatCompletionText({
       provider,
       messages: [
@@ -105,5 +113,12 @@ export function createLlmAdapter(provider: LlmProvider): AdapterFn {
       throw new Error(`llm: ${formatLlmChatError(result.error)}`);
     }
     return result.value;
-  });
+  };
+}
+
+/** Single-turn chat adapter: system prompt is passed by the workflow engine. */
+export function createLlmAdapter(provider: LlmProvider): AdapterFn {
+  return createAgentAdapter(createLlmAgent(provider), async (_ctx, prompt, _runtime) => ({
+    prompt,
+  }));
 }

packages/workflow-template-develop/bundle-entry.ts

@@ -8,15 +8,6 @@ import { createWorkflow } from "@uncaged/workflow-runtime";
 import { optionalEnv, requireEnv } from "@uncaged/workflow-util";
 import { buildDevelopDescriptor, developWorkflowDefinition } from "./src/index.js";
 
-const llmProvider = {
-  baseUrl: optionalEnv(
-    "WORKFLOW_LLM_BASE_URL",
-    "https://dashscope.aliyuncs.com/compatible-mode/v1",
-  ),
-  apiKey: requireEnv("WORKFLOW_LLM_API_KEY", "set WORKFLOW_LLM_API_KEY for meta extraction"),
-  model: optionalEnv("WORKFLOW_LLM_MODEL", "qwen-plus"),
-};
-
 const adapter = createCursorAgent({
   command: requireEnv("WORKFLOW_CURSOR_COMMAND", "set WORKFLOW_CURSOR_COMMAND (e.g. cursor-agent)"),
   model: optionalEnv("WORKFLOW_CURSOR_MODEL"),
@@ -24,7 +15,6 @@ const adapter = createCursorAgent({
     ? Number(optionalEnv("WORKFLOW_CURSOR_TIMEOUT"))
     : 0,
   workspace: null,
-  llmProvider,
 });
 
 const wf = createWorkflow(developWorkflowDefinition, { adapter, overrides: null });