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  "title": "Add region struct and enhance subtraction",
  "number": 389,
  "source": "aidev",
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  "debrief": "The task asked for a Region type, a region-level subtract operation, a re-export of Region from the crate, and tests of subtraction across multiple rectangles. OpenAI Codex delivered 144 added lines across three files in one commit, with no deletions. The pull request on gridaco/grida merged clean, with no changes requested and no review comments.",
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  "body_excerpt": "## Summary\n- define `Region` type\n- implement region-level `subtract`\n- re-export `Region` from the crate\n- test region subtraction with multiple rectangles\n\n## Testing\n- `cargo fmt --all`\n- `cargo test -p math2`\n\n\n------\nhttps://chatgpt.com/codex/tasks/task_e_685134c512a8832ab17731eaf21edb4f",
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   "agent": "openai-codex",
   "state": "merged",
   "title": "Implement rect tiling in math2",
   "number": 390,
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   "state": "merged",
   "title": "Fix rectangle containment logic",
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  },
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   "title": "Implement scene caching in canvas",
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   "merged_at": "2025-06-10T15:11:33+00:00",
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 "pr_url": "https://github.com/gridaco/grida/pull/389",
 "page": "https://agentriders.com/logs/gridaco/grida/389/"
}