---
title: "Insert Before Stream Race Condition Fix – Execution Log"
phase: Execute
date: "2026-01-27_18-00-00"
owner: "claude-opus-4-5"
plan_path: "memory-bank/plan/2026-01-27_17-41-42_insert-before-stream-fix.md"
start_commit: "5efc5423"
rollback_stash: "stash@{0}"
env: {target: "local", notes: "Development environment"}
---

## Pre-Flight Checks

- [x] DoR satisfied? Yes - research complete, code locations verified
- [x] Access/secrets present? N/A - no external services
- [x] Fixtures/data ready? N/A - no test data needed
- [x] Branch: master
- [x] Rollback point: git stash `stash@{0}` + commit `5efc5423`

## Execution Log

### Task 1 – Add insertion anchor tracking to ChatContainer
- Status: PENDING
- Commit: TBD
- Files: `src/tunacode/ui/widgets/chat.py`

### Task 2 – Update insert_before_stream() to use insertion anchor
- Status: PENDING
- Commit: TBD
- Files: `src/tunacode/ui/widgets/chat.py`

### Task 3 – Clear insertion anchor on new request
- Status: PENDING
- Commit: TBD
- Files: `src/tunacode/ui/widgets/chat.py`

### Task 4 – Handle cancel scenario insertion anchor
- Status: PENDING
- Commit: TBD
- Files: `src/tunacode/ui/widgets/chat.py`

### Task 5 – Manual verification
- Status: PENDING
- Notes: TBD

## Gate Results

- Gate C (Pre-merge): PENDING
- Type checks: PENDING
- Linters: PENDING

## Follow-ups

TBD after implementation
