fix(todo): require parallel policy choice

examples/headless-agent/cordis.yml

@@ -106,6 +106,8 @@
 # `todo_write` replaces the logged whole list.
 - id: tool-todo
   name: '@deepseek-ai/dsh-tool-todo'
+  config:
+    allowParallelInProgress: true
 
 # Policy loads before the model-facing filesystem tools so writes and edits
 # require an observed file. Relative paths resolve from the process cwd.

examples/headless-agent/tests/harness.ts

@@ -64,7 +64,7 @@ export async function codingHarness(workdir: string, options: CodingHarnessOptio
   await ctx.plugin(LocalSubprocessService)
   await ctx.plugin(LocalBashExecutor, { cwd: workdir, timeoutMs: 30_000 })
   await ctx.plugin(ToolBash)
-  await ctx.plugin(ToolTodo)
+  await ctx.plugin(ToolTodo, { allowParallelInProgress: true })
   // Compaction is opt-in: only the compaction e2e loads the reusable meter and backend.
   if (options.compact !== undefined) {
     await ctx.plugin(TokenMeterService)