co-researcher

Defined in hooks/hooks.json

{
  "SessionStart": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "\"${CLAUDE_PLUGIN_ROOT}/hooks/session-start.cmd\""
        }
      ],
      "matcher": "startup|resume|clear|compact"
    }
  ]
}

"Executes para-session-start.sh shell script on SessionStart event for custom session initialization. No bash execution or file writes."