<!-- task=m-iop-hot-path-one-shot-execution/14+13_anthropic_gate plan=3 tag=REVIEW_API milestone-task=terminal-control,anthropic-gate -->

# Complete - m-iop-hot-path-one-shot-execution/14+13_anthropic_gate

## Completed At

2026-08-03

## Summary

Completed four plan iterations with three official verdicts; the final review passed after preserving zero-argument Anthropic tools through live decoding, public SSE, and continuation correlation.

## Loop History

| Plan | Review | Verdict | Notes |
|------|--------|---------|-------|
| `plan_cloud_G09_0.log` | `code_review_cloud_G10_0.log` | NOT FINALIZED | Initial implementation artifact was archived without an official verdict and superseded by the next plan iteration. |
| `plan_cloud_G09_1.log` | `code_review_cloud_G10_1.log` | FAIL | Provider response identity, provider-token budgeting, and production live-stage release required repair. |
| `plan_cloud_G09_2.log` | `code_review_cloud_G10_2.log` | FAIL | Empty-input native Anthropic `tool_use` blocks were dropped by the live stage decoder. |
| `plan_cloud_G04_3.log` | `code_review_cloud_G05_3.log` | PASS | Empty tool input is emitted once as `{}` with stable public/provider correlation and unchanged fragmented non-empty arguments. |

## Implementation and Cleanup

- Track Anthropic tool block identity and whether an input fragment has been emitted.
- Emit exactly one `{}` normalized tool fragment when a known zero-argument block closes, then remove its decoder state.
- Preserve non-empty fragmented arguments without leading or trailing fallback fragments.
- Add a native handler regression covering public Anthropic SSE ordering, zero-argument tool projection, selector submission ownership, and continuation mapping.

## Final Verification

- `go test -race -count=1 ./apps/edge/internal/openai -run 'TestHotPathAnthropic|TestHotPathOuterTurn|TestHotPathStage|TestAnthropic(ChatBridge|Native)'` - PASS; `ok iop/apps/edge/internal/openai 2.337s`.
- `go test -race -count=1 ./packages/go/streamgate ./packages/go/config ./apps/edge/internal/openai ./apps/edge/internal/service` - PASS; all four packages passed (`2.234s`, `2.289s`, `12.088s`, `7.223s`).
- `git diff --check` - PASS; no output.
- `gofmt -d apps/edge/internal/openai/hot_path_stage_stream.go apps/edge/internal/openai/hot_path_anthropic_gate_test.go apps/edge/internal/openai/hot_path_dispatch.go` - PASS; no output.

## Remaining Nits

- None.

## Follow-up Work

- None.
