Merge branch 'codex/simp-agent-entry-state' into codex/simp-unify-agent-session-id

# Conflicts:
#	docs/architecture.md
#	docs/config-catalog.md
#	docs/cordis-catalog/events.md
#	docs/cordis-catalog/services.md
#	docs/core-data-structures/core.md
#	docs/event-producer-consumer.md
#	docs/module-graph.md
#	examples/coding-agent/tests/code-mode.e2e.ts
#	examples/coding-agent/tests/coding-task.e2e.ts
#	examples/coding-agent/tests/compaction.e2e.ts
#	examples/coding-agent/tests/full-loop.e2e.ts
#	examples/coding-agent/tests/todo-write.e2e.ts
#	examples/cordis-agent/tests/cordis-tools.e2e.ts
#	packages/bash/tool-bash/tests/integration.spec.ts
#	packages/bash/tool-bash/tests/tools.spec.ts
#	packages/compact/compact-basic/tests/compact-loop-repro.spec.ts
#	packages/context/time-context/tests/time-context.spec.ts
#	packages/cordis/tool-cordis/src/api-catalog.ts
#	packages/cordis/tool-cordis/tests/integration.spec.ts
#	packages/core/agent-loop/README.md
#	packages/core/agent-loop/src/agent.ts
#	packages/core/agent-loop/src/index.ts
#	packages/core/agent-loop/tests/agent.spec.ts
#	packages/core/agent-loop/tests/cancel.spec.ts
#	packages/core/agent-loop/tests/config-session-id.spec.ts
#	packages/core/agent-loop/tests/contract-regressions.spec.ts
#	packages/core/agent-loop/tests/coverage-edges.spec.ts
#	packages/core/agent-loop/tests/interception.spec.ts
#	packages/core/agent-loop/tests/loop.spec.ts
#	packages/core/agent-loop/tests/properties.spec.ts
#	packages/core/agent-loop/tests/request-cache.e2e.ts
#	packages/core/agent-loop/tests/request-reconstruction.spec.ts
#	packages/core/agent-loop/tests/resume.spec.ts
#	packages/core/agent-loop/tests/scope-lifecycle.spec.ts
#	packages/core/agent-loop/tests/tool-order.spec.ts
#	packages/core/agent-loop/tests/turn-stop.spec.ts
#	packages/core/agent/src/types.ts
#	packages/examples/agent-spine-demo/README.md
#	packages/examples/agent-spine-demo/tests/agent-core.spec.ts
#	packages/examples/stdio-demo/README.md
#	packages/examples/stdio-demo/src/index.ts
#	packages/examples/stdio-demo/tests/stdio-agent.spec.ts
#	packages/fs/tool-fs/tests/fs-tools.e2e.ts
#	packages/guard/repeat-tool-guard/tests/repeat-tool-guard.spec.ts
#	packages/hooks/hooks-claude/tests/bridge.spec.ts
#	packages/hooks/hooks-claude/tests/coverage.spec.ts
#	packages/hooks/hooks-codex/tests/bridge.spec.ts
#	packages/hooks/hooks-codex/tests/coverage.spec.ts
#	packages/subagent/subagent-fork/tests/multi-subagent.spec.ts
#	packages/subagent/subagent-fork/tests/subagent-fork.spec.ts
#	packages/subagent/subagent-inprocess/tests/structured.spec.ts
#	packages/subagent/subagent-inprocess/tests/subagent-inprocess.spec.ts
#	packages/subagent/subagent-spawn/tests/spawn.e2e.ts
#	packages/subagent/subagent-spawn/tests/subagent-spawn.spec.ts
#	packages/todo/tool-todo/tests/integration.spec.ts
#	packages/ui/acp/tests/dispose.spec.ts
#	packages/ui/acp/tests/edges.spec.ts
#	packages/workflow/workflow-workerthread/tests/integration.spec.ts

packages/ui/jsonrpc/src/server.ts

@@ -20,6 +20,8 @@ import type { JsonRpcTransportPeer } from './transport.ts'
 export interface InitializeParams {
   /** Working directory recorded on every SDK-created session's header. */
   cwd: string
+  /** Provider route every SDK-created agent runs on. */
+  provider: string
   /** Model name every SDK-created agent runs on (see {@link HarnessSdkServer.initialize} for adapter fallback). */
   model: string
 }
@@ -65,6 +67,7 @@ interface SubagentRecord {
  */
 export class HarnessSdkServer {
   private cwd = process.cwd()
+  private provider = 'deepseek'
   private model = 'deepseek'
   private llmFiber: { dispose(): Promise<void> } | undefined
   private readonly sessions = new Map<string, SessionRecord>()
@@ -123,16 +126,18 @@ export class HarnessSdkServer {
   }
 
   /**
-   * Record cwd and model, mounting the DeepSeek adapter only when the config
-   * registered no adapter for that model.
+   * Record cwd and provider/model, mounting the DeepSeek adapter only when the
+   * `deepseek` provider route has no configured owner.
    * @param params - the SDK handshake parameters.
    * @returns the server identity for the handshake.
    */
   async initialize(params: InitializeParams): Promise<InitializeResult> {
     this.cwd = resolve(params.cwd)
+    this.provider = params.provider
     this.model = params.model
-    if (!this.llmFiber && !this.hasAdapterFor(this.model)) {
-      this.llmFiber = await this.ctx.plugin(LlmDeepSeek, { models: [this.model] })
+    if (!this.hasAdapterFor(this.provider)) {
+      if (this.provider !== 'deepseek') throw new Error(`no adapter registered for provider "${this.provider}"`)
+      this.llmFiber = await this.ctx.plugin(LlmDeepSeek, {})
     }
     return { serverInfo: { name: 'deepseek-harness-sdk-runtime', version: '0.0.1' } }
   }
@@ -242,7 +247,7 @@ export class HarnessSdkServer {
     const handle = await this.ctx.agents.create({
       sessionId: SessionId(sessionId),
       meta: { cwd: this.cwd },
-      agentOptions: { model: this.model },
+      agentOptions: { provider: this.provider, model: this.model },
     })
     const rec: SessionRecord = { handle, lastTurnEnd: undefined, activePrompt: false }
     this.sessions.set(sessionId, rec)
@@ -254,7 +259,7 @@ export class HarnessSdkServer {
     return reason.kind === 'completed' ? 'ok' : 'error'
   }
 
-  private hasAdapterFor(model: string): boolean {
-    return this.ctx.get('llm')?.models().includes(model) ?? false
+  private hasAdapterFor(provider: string): boolean {
+    return this.ctx.get('llm')?.listProviders().some(entry => entry.id === provider) ?? false
   }
 }