<!-- task=m-iop-owned-single-request-agent-execution/21+20_single_request_executor plan=3 tag=REVIEW_REVIEW_REVIEW_API milestone-task=review-stage -->

# Complete - m-iop-owned-single-request-agent-execution/21+20_single_request_executor

## Completion Time

2026-08-07

## Summary

Completed the single-request composite executor review after four review loops with final verdict PASS; the final repair proves simultaneous request-local workspace continuations and distinct typed-result ownership.

## Loop History

| Plan | Review | Verdict | Notes |
|------|--------|---------|-------|
| `plan_local_G08_0.log` | `code_review_cloud_G08_0.log` | FAIL | The original concurrency fixture did not enter the internal workspace continuation and did not exercise live waiter cleanup. |
| `plan_cloud_G06_1.log` | `code_review_cloud_G06_1.log` | FAIL | Separate service/harness instances left shared artifact and typed-result isolation unproved. |
| `plan_cloud_G06_2.log` | `code_review_cloud_G06_2.log` | FAIL | The barrier occurred after response delivery and the identical result oracle could pass from retained tool-call arguments. |
| `plan_cloud_G06_3.log` | `code_review_cloud_G06_3.log` | PASS | The Node-side pre-response barrier, request-indexed typed request/response evidence, peer exclusion, and final waiter cleanup all passed. |

## Implementation and Cleanup

- Captured cloned workspace tool requests and typed responses by immutable request ID in the shared Node harness.
- Held both colliding workspace requests before releasing distinct typed READ results, then required each resumed provider body to contain only its own PLAN and result evidence.
- Allowed concurrent dispatch callbacks under the registry shared read lock while retaining disconnect/reconnect ownership fencing.
- Removed a verbose test-body debug log and an unused harness field during review.

## Final Verification

- `bash -c 'set -euo pipefail; shopt -s nullglob; candidates=(agent-task/m-iop-owned-single-request-agent-execution/20_*/complete.log agent-task/m-iop-owned-single-request-agent-execution/20+*/complete.log agent-task/archive/*/*/m-iop-owned-single-request-agent-execution/20_*/complete.log agent-task/archive/*/*/m-iop-owned-single-request-agent-execution/20+*/complete.log); printf "%s\n" "${candidates[@]}"; ((${#candidates[@]} == 1))'` - PASS; found exactly `agent-task/archive/2026/08/m-iop-owned-single-request-agent-execution/20+19_review_repair/complete.log`.
- `go test -race ./apps/edge/internal/openai -run '^TestSingleRequestExecutorConcurrentToolIsolation$' -count=20` - PASS; `ok iop/apps/edge/internal/openai 1.190s`.
- `go test -race ./apps/edge/internal/openai -run 'TestSingleRequest(Executor|WorkStage)' -count=1` - PASS; `ok iop/apps/edge/internal/openai 1.253s`.
- `go test ./apps/edge/internal/service -run 'TestSingleRequest(InternalToolLoop|Cleanup|EnvelopeOrdering)' -count=1` - PASS; `ok iop/apps/edge/internal/service 0.108s`.
- `go vet ./apps/edge/internal/openai && go test ./apps/edge/internal/service ./apps/edge/internal/openai -count=1` - PASS; service and OpenAI packages completed in 6.466s and 8.074s.
- `go test -race ./apps/edge/internal/node -count=1` - PASS; `ok iop/apps/edge/internal/node 1.046s`.
- `go test -race ./apps/edge/internal/service -run '^(TestProviderPoolDispatchRunDisconnectRace|TestProviderPoolDispatchTunnelDisconnectRace|TestWorkspaceWire|TestWorkspaceWireCancelReachesBlockedTool)$' -count=1` - PASS; `ok iop/apps/edge/internal/service 1.096s`.
- Typed-result structural guard, production-activation deferral guard, `gofmt` checks, and `git diff --check` - PASS.
- Repository Edge-Node diagnostic, auxiliary E2E smoke, and external Claude/Mac full-cycle execution - NOT RUN; this deterministic follow-up explicitly excludes S12 external qualification and leaves production activation deferred.

## Remaining Nits

- None.

## Follow-up Work

- None.
