Charley Cunningham 1096d6453c Fix plan implementation prompt reappearing after /agent thread switch (#10447)
## Summary

This fixes a UX bug (https://github.com/openai/codex/issues/10442) where
the **"Implement this plan?"** prompt could reappear after switching
agents with `/agent` and then switching back to the original agent
during plan execution.

## Root Cause

On thread switch, the TUI rebuilds `ChatWidget`, replays buffered thread
events, then drains any queued live events.

In this flow, a `TurnComplete` can be handled twice for the same logical
turn:
1. replayed (`from_replay = true`)
2. then live (`from_replay = false`)

`ChatWidget` used `saw_plan_item_this_turn` to decide whether to show
the plan implementation prompt, but that flag was only reset on
`TurnStarted`.
If duplicate completion events occurred, stale `saw_plan_item_this_turn
= true` could cause the prompt to re-trigger unexpectedly.

## Fix

- Clear `saw_plan_item_this_turn` at the end of `on_task_complete`,
after prompt gating runs.
- This keeps the flag truly turn-scoped and prevents duplicate
`TurnComplete` handling from reopening the prompt.
1096d6453c · 2026-02-02 17:40:05 -08:00
3,286 Commits
2026-01-08 07:50:58 -08:00
2025-04-16 12:56:08 -04:00
2026-02-02 11:06:50 +00:00
2025-04-16 12:56:08 -04:00
2025-07-31 00:06:55 +00:00
2026-01-31 20:33:06 +00:00

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