{
  "id": "hook-merge-diagnostic:duplicate-warning",
  "_kind": "HookMergeDiagnostic",
  "_file": "extensions/hook-merge-diagnostics/canonical.yaml",
  "_cluster": "extensions",
  "attributes": {
    "hookSurfaceId": "hook-surface:claude.post-tool-use",
    "outcome": "dropped",
    "sources": [
      "plugin:babysitter",
      "plugin:babysitter"
    ],
    "precedenceRule": "dedupe-by-id",
    "severity": "warning",
    "detail": "Duplicate registration of the same hook id from `plugin:babysitter`\ndetected during merge; second occurrence dropped under\ndedupe-by-id. Likely indicates double-installation of the plugin.\n"
  },
  "outgoingEdges": [],
  "incomingEdges": []
}