Add skill discovery and loading

packages/core/agent-loop/README.md

@@ -8,7 +8,7 @@ This is the only package in the harness that contains concrete loop logic. Every
 
 ### Public API
 
-- `ctx.agentLoop.create(id: string, options?: AgentOptions): ReactLoopAgent` — config-driven create: an agent on a fresh per-run session id `${id}-session-<uuid>` (no cwd). Used for `cordis.yml`-configured agents. The per-run uuid avoids colliding with the on-disk log a prior run materialized once a durable persistence backend is loaded; each run is a new session (a deliberate demo simplification — a real resume-or-create policy is a TODO). Disposed with the calling fiber.
+- `ctx.agentLoop.create(id: string, options?: AgentOptions, meta?: { cwd?: string }): ReactLoopAgent` — config-driven create: an agent on a fresh per-run session id `${id}-session-<uuid>` with optional session metadata. Used for `cordis.yml`-configured agents. The per-run uuid avoids colliding with the on-disk log a prior run materialized once a durable persistence backend is loaded; each run is a new session (a deliberate demo simplification — a real resume-or-create policy is a TODO). Disposed with the calling fiber.
 
 `AgentLoop` also implements the `AgentFactory` seam and registers itself via `ctx.agents.setFactory(this)`, so plugins create/resume agents through `ctx.agents` (the interface):
 
@@ -29,11 +29,12 @@ interface Config {
     id: string                 // required
     model?: string
     systemPrompt?: string
+    cwd?: string               // optional workspace cwd for the fresh session
   }>
 }
 ```
 
-Agents listed in config are auto-created at startup.
+Agents listed in config are auto-created at startup. `cwd` applies only to fresh config-created sessions; `resumeSessionId` keeps the persisted session header.
 
 ### Classes
 

packages/core/agent-loop/src/index.ts

@@ -12,7 +12,7 @@ import { randomUUID } from 'node:crypto'
 import z from 'schemastery'
 import type { AgentFactory, AgentHandle, AgentId, AgentOptions, CreateAgentOptions, ResumeAgentOptions } from '@deepseek-ai/dsh-agent'
 import type {} from '@deepseek-ai/dsh-llm'
-import { SessionId } from '@deepseek-ai/dsh-session'
+import { SessionId, type SessionHeader } from '@deepseek-ai/dsh-session'
 import type { Session } from '@deepseek-ai/dsh-session'
 import type {} from '@deepseek-ai/dsh-system-prompt'
 import type {} from '@deepseek-ai/dsh-tools'
@@ -33,6 +33,8 @@ export interface Config {
   /** Agents created from configuration at startup. */
   agents: (AgentOptions & {
     id: AgentId
+    /** Optional workspace cwd for the config-created fresh session. */
+    cwd?: string
     /**
      * If set, the config agent RESUMES this persisted session id instead of
      * starting a fresh `${id}-session-<uuid>`. Sourced from an env var in
@@ -73,6 +75,7 @@ export class AgentLoop extends Service implements AgentFactory {
       id: z.string().required(),
       model: z.string(),
       systemPrompt: z.string(),
+      cwd: z.string(),
       resumeSessionId: z.string(),
     })).default([]),
   }) as unknown as z<Config>
@@ -82,7 +85,7 @@ export class AgentLoop extends Service implements AgentFactory {
     // Provide the agent-creation factory to the registry (effect-scoped: the
     // slot is cleared on dispose).
     ctx.effect(() => this.ctx.agents.setFactory(this), 'agentLoop.setFactory()')
-    for (const { id, resumeSessionId, ...options } of config.agents) {
+    for (const { id, cwd, resumeSessionId, ...options } of config.agents) {
       if (resumeSessionId !== undefined && resumeSessionId !== '') {
         // Resume a prior session instead of starting fresh. resume() needs
         // `ctx.sessionPersistence`, which may load AFTER this plugin (cordis.yml
@@ -101,15 +104,15 @@ export class AgentLoop extends Service implements AgentFactory {
           return () => void fiber.dispose()
         }, `agentLoop.resume(${id})`)
       } else {
-        this.create(id, options)
+        this.create(id, options, cwd === undefined ? {} : { cwd })
       }
     }
   }
 
   /**
    * Config-driven create: an agent on a FRESH, non-colliding session id per run
-   * (`${id}-session-<uuid>`, no cwd). Used for `cordis.yml`-configured agents
-   * and as the shared core for the programmatic factory {@link createAgent}.
+   * (`${id}-session-<uuid>`). Used for `cordis.yml`-configured agents and as
+   * the shared core for the programmatic factory {@link createAgent}.
    *
    * Why a per-run id, not a fixed `${id}-session`: once a durable persistence
    * backend is loaded, a fixed id collides on the second run — the backend
@@ -122,13 +125,13 @@ export class AgentLoop extends Service implements AgentFactory {
    * else start fresh) or an explicit caller-chosen session id — revisit when the
    * UI/ACP path owns session selection.
    */
-  create(id: AgentId, options: AgentOptions = {}): ReactLoopAgent {
+  create(id: AgentId, options: AgentOptions = {}, meta: Pick<SessionHeader, 'cwd'> = {}): ReactLoopAgent {
     this.assertAgentIdFree(id)
     // Config/programmatic path: prepare the session and let start() fold its
     // lifecycle into the agent's composite effect (so a fiber unload tears the
     // session + agent down as one ordered chain, capturing the loop's closing
     // flush). The whole effect is owned by THIS fiber; no AgentHandle is needed.
-    const session = this.ctx.sessions.prepare(SessionId(`${id}-session-${randomUUID()}`), { meta: {} })
+    const session = this.ctx.sessions.prepare(SessionId(`${id}-session-${randomUUID()}`), { meta })
     const { agent } = this.start(id, options, session)
     return agent
   }

packages/core/agent-loop/tests/loop.spec.ts

@@ -677,6 +677,21 @@ describe('agent loop', () => {
     expect(adapter.requests).toHaveLength(1)
   })
 
+  it('attaches config agent cwd to the fresh session header', async () => {
+    const ctx = new Context()
+    await ctx.plugin(LlmService)
+    await ctx.plugin(SessionStore)
+    await ctx.plugin(SystemPrompt)
+    await ctx.plugin(ToolRegistry)
+    await ctx.plugin(AgentRegistry)
+    await ctx.plugin(AgentLoop, {
+      agents: [{ id: AgentId('config-agent'), model: 'mock', systemPrompt: '', cwd: '/work/project' }],
+    })
+
+    const agent = ctx.agents.get(AgentId('config-agent'))! as ReactLoopAgent
+    expect(agent.session.header.cwd).toBe('/work/project')
+  })
+
   it('replays a session log into an identical derived history', async () => {
     const adapter = new MockAdapter([
       toolCallResponse('c1', 'echo', { text: 'x' }),