A continuable child could finish without giving its parent a usable result: the report tool was described as optional and its default delivery stayed quiet. Install the child-scoped report obligation (tool description plus the tool:report prompt section), default reportDelivery to wakeup, bind shipped subagent_fork delegations to one-shot so fork keeps its prefix reuse, and extend the ACP snapshot harness to pin child system prompts alongside child tool schemas.
support/ — development and test infrastructure
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These packages support repository development, tests, and examples rather than product APIs. Their compatibility follows the development need they serve.
| Package | Role |
|---|---|
acp-snapshot/ |
Provides the ACP snapshot-test toolkit |
agent-loop-testkit/ |
Mounts shared prerequisites for AgentLoop tests |
invariants/ |
Runs development-time runtime-contract assertions |
loader-smoke/ |
Launches Loader-composed applications for smoke tests |
llm-mock-server/ |
Provides a deterministic OpenAI-compatible fault server |
llm-replay/ |
Replays recorded model responses for keyless tests and demos |
A package moves out of support/ when it gains a product contract and product consumers.
The invariants contract is documented in docs/subsystems/invariants.md.