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  "title": "writer: fix writer close semantics",
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  "debrief": "OpenAI Codex fixes writer close semantics in the zstd-seekable-format-go repository. A second close now returns an error, implemented with a mutex, and write and write-many calls after close are guarded. Tests cover close behavior. The diff spans three files, with 66 additions and 18 deletions. It merged clean in 0.14 hours with no changes requested.",
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  "body_excerpt": "## Summary\n- enforce close to error on second use by switching to a mutex\n- guard write and write-many against calls after close\n- add tests for writer close semantics\n\n## Testing\n- `go test ./...`\n\n------\nhttps://chatgpt.com/codex/tasks/task_e_686bdbafd8908330afa090ca5344761f",
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   "agent": "openai-codex",
   "state": "merged",
   "title": "Ensure thread safety when io.ReaderAt is missing",
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   "state": "merged",
   "title": "Fix zero-length frame handling in writer",
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   "title": "Add fuzz test for corrupt seek tables",
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   "merged_at": "2025-07-07T17:53:00+00:00",
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 "pr_url": "https://github.com/SaveTheRbtz/zstd-seekable-format-go/pull/204",
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