---
model: openai/gpt-5.6-sol
service: opencode
session: d9d7df2c-7044-463f-8768-ec024718eac9
timestamp: 2026-08-24T22:36:14Z
git_ref: 88d538e3
scope: code
substantive: true
raw_file: 20260824T223614Z_88d538e3_prompt_io.raw.md
---

## Prompt

Continue PR #481 review remediation after committing the shared
`Context.cancel()` deadline fix. The human accepted the proposed
child-reap bookkeeping invariant, asking only that the first fix receive
its own commit plan and commit before this update began.

## Response summary

Check that `ActorNursery` removes its paired reap-coordination entries
together while preserving valid pre-registration and immediate-cancel
paths. Extend the existing real-runtime reap tests to prove all three
child bookkeeping mappings are empty before `to_actor.run()` returns.

## Files changed

- `tractor/runtime/_supervise.py` - assert paired reap-map cleanup.
- `tests/test_to_actor.py` - verify graceful and hard-reap bookkeeping.

## Human edits

The human explicitly accepted this invariant update but directed the
preceding cancellation fix to be planned and committed as a separate
boundary first. No direct source-line edits were made by the human.