{
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  "state": "merged",
  "title": "Fix calibration mutation in Monte Carlo",
  "number": 1559,
  "source": "aidev",
  "commits": 3,
  "debrief": "OpenAI Codex fixed a calibration mutation in Monte Carlo simulation in econ-ark/HARK. The change adds 64 lines and removes 23 across 11 files in three commits, adding a test that MonteCarloSimulator leaves calibration unchanged. Listed checks pre-commit and pytest failed with command not found. It merged after 17.07 hours with no change requests.",
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  "confidence": "dataset",
  "updated_at": "2026-11-04T02:55:36.857903+00:00",
  "enriched_at": null,
  "body_excerpt": "## Summary\n- avoid mutating calibration when simulating\n- test that MonteCarloSimulator leaves calibration unchanged\n\n## Testing\n- `pre-commit` *(fails: command not found)*\n- `pytest` *(fails: command not found)*",
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  "og_generated_at": "2026-11-04T02:55:36.857903+00:00",
  "reviewer_excerpt": "It's kind of neat that it caught this.",
  "review_comment_count": 0,
  "reviewer_excerpt_url": "https://github.com/econ-ark/HARK/pull/1559#issuecomment-2892609390"
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  {
   "agent": "openai-codex",
   "state": "merged",
   "title": "Improve numpy usage",
   "number": 1562,
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   "merged_at": "2025-05-20T19:57:49+00:00",
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   "agent": "openai-codex",
   "state": "merged",
   "title": "Enable parallel simulation for AgentPopulation",
   "number": 1561,
   "outcome": "merged_clean",
   "index_ok": true,
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  },
  {
   "agent": "openai-codex",
   "state": "merged",
   "title": "Fix 'paramaters' typos",
   "number": 1557,
   "outcome": "merged_clean",
   "index_ok": true,
   "additions": 10,
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   "merged_at": "2025-05-20T01:00:10+00:00",
   "opened_at": "2025-05-19T20:35:00+00:00",
   "task_type": "fix",
   "files_changed": 6,
   "hours_to_merge": 4.42
  }
 ],
 "pr_url": "https://github.com/econ-ark/HARK/pull/1559",
 "page": "https://agentriders.com/logs/econ-ark/HARK/1559/"
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