{
 "what": "AI agent sessions in the portfolio's codebases (session graph nodes with portfolio == genesis)",
 "measured_utc": "2026-09-19T21:28:07Z",
 "sessions": 3452,
 "by_tool": {
  "codex": 1622,
  "claude": 1576,
  "cursor": 249,
  "antigravity": 5
 },
 "top_level": 2938,
 "sub_agents": 514,
 "first": "2025-12-29",
 "last": "2026-09-18",
 "input_sha256": "3e212a9d89463b0c0be2c646b8d2650ffb0123dbe7a45e5c565f2f09368bb796",
 "input": "the portfolio's session graph, nodes.jsonl"
}