explanatory-output-style

Defined in hooks/hooks.json

{
  "SessionStart": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "${CLAUDE_PLUGIN_ROOT}/hooks-handlers/session-start.sh"
        }
      ]
    }
  ]
}

"Runs session-start.sh script on SessionStart events matching startup, resume, clear, or compact to handle session initialization workflows."