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Suppress repeated turn diffs in codex exec human output - #53444
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## Why Repeated turn diff notifications can print the same file changes multiple times, including after an unrelated command. ## What changed Track the last diff and print nonempty updates only when they differ from the previous notification. Remember empty updates so a restored diff prints again, and reset the tracked diff when a new turn starts. ## Testing Add a stderr snapshot test covering repeated, changed, empty, restored, and new-turn diffs. Add an integration test that applies one edit, runs an unrelated command, and verifies that the diff appears exactly once. GitOrigin-RevId: db0a2aa8b77b800ca661e7d1314ed1e571743e74
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Suppress repeated turn diffs in
codex exechuman outputWhy
Repeated turn diff notifications can print the same file changes multiple times, including after an unrelated command.
What changed
Track the last diff and print nonempty updates only when they differ from the previous notification. Remember empty updates so a restored diff prints again, and reset the tracked diff when a new turn starts.
Testing
Add a stderr snapshot test covering repeated, changed, empty, restored, and new-turn diffs. Add an integration test that applies one edit, runs an unrelated command, and verifies that the diff appears exactly once.