{
  "sha": "60e503f20a088d5f85b0a3f3ed29bac4d806d18f",
  "subject": "Lower LR and lengthen warmup to stop divergence",
  "message": "Lower LR and lengthen warmup to stop divergence\n\nTrail-Session: claude:285791a1-5658-4fdc-992c-f9a75f8c525f\nTrail-Link: http://localhost:8787/repos/ml-pipeline/session/285791a1-5658-4fdc-992c-f9a75f8c525f",
  "author": "Sam Rivera <sam@acme.dev>",
  "date": "2026-10-27T17:00:00Z",
  "branch": "main",
  "files": [
    "M train.py"
  ],
  "artifacts": {
    "files": [
      "logs/run-17.log",
      "logs/run-18.log",
      "logs/run-19.log",
      "runs/run-19/metrics.json"
    ],
    "skipped": []
  },
  "sessions": [
    {
      "key": "claude:285791a1-5658-4fdc-992c-f9a75f8c525f",
      "harness": "claude",
      "session_id": "285791a1-5658-4fdc-992c-f9a75f8c525f",
      "title": "The 7B LoRA fine-tune keeps blowing up around step 400. Logs are in logs/run-17.log. Fix it.",
      "dir": "ml-pipeline/users/sam@acme.dev/sessions/285791a1-5658-4fdc-992c-f9a75f8c525f",
      "transcript_range": [
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}