refactor: identify and freeze messages at creation

packages/tasks/tasks-local/tests/tasks.spec.ts

@@ -1,7 +1,7 @@
 import { describe, expect, expectTypeOf, it, vi } from 'vitest'
 import { Context } from 'cordis'
 import { Session, SessionId } from '@deepseek-ai/dsh-session'
-import AgentRegistry, { AgentMessageId } from '@deepseek-ai/dsh-agent'
+import AgentRegistry, {} from '@deepseek-ai/dsh-agent'
 import type { Agent } from '@deepseek-ai/dsh-agent'
 import { TaskId } from '@deepseek-ai/dsh-tasks'
 import type { TaskHooks, TaskKind, TaskOutcome, TaskSnapshot, TaskStart } from '@deepseek-ai/dsh-tasks'
@@ -25,10 +25,10 @@ function stubAgent(ctx: Context, rawId: string): Agent {
     status: 'idle' as const,
     acceptsNextStep: false,
     ctx: scopeFiber.ctx,
-    followup: () => AgentMessageId('stub'),
-    steer: () => AgentMessageId('stub'),
-    inject: () => AgentMessageId('stub'),
-    send: () => AgentMessageId('stub'),
+    followup: () => {},
+    steer: () => {},
+    inject: () => {},
+    send: () => {},
     cancel() {},
     whenIdle() { return Promise.resolve() },
   }

packages/tasks/tool-tasks/src/index.ts

@@ -8,7 +8,7 @@
 
 import type { Context } from 'cordis'
 import z from 'schemastery'
-import type { ContentBlock } from '@deepseek-ai/dsh-llm'
+import { createUserMessage, type ContentBlock } from '@deepseek-ai/dsh-llm'
 import { TextRetainer } from '@deepseek-ai/dsh-retention'
 import { defineTool } from '@deepseek-ai/dsh-tools'
 import type { GenericCallView, ToolDefinition, ToolExecution } from '@deepseek-ai/dsh-tools'
@@ -225,13 +225,13 @@ export function apply(ctx: Context, config: Config): void {
   // with it.
   ctx.tasks.onTaskDone((snapshot, owner) => {
     if (snapshot.reported || owner === undefined) return
-    owner.inject({
+    owner.inject(createUserMessage({
       content: [{
         type: 'text',
         text: fitCompletionNotice(snapshot),
       }],
       source: { kind: 'plugin', plugin: 'tool-tasks' },
-    })
+    }))
   })
 
   ctx.tools.register(defineTool({