engram

Defined in hooks/hooks.json

{
  "Stop": [
    {
      "hooks": [
        {
          "type": "command",
          "async": true,
          "command": "${CLAUDE_PLUGIN_ROOT}/scripts/session-stop.sh",
          "timeout": 5
        }
      ]
    }
  ],
  "SessionStart": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "${CLAUDE_PLUGIN_ROOT}/scripts/session-start.sh",
          "timeout": 10,
          "statusMessage": "Loading engram memory..."
        }
      ],
      "matcher": "startup|clear"
    },
    {
      "hooks": [
        {
          "type": "command",
          "command": "${CLAUDE_PLUGIN_ROOT}/scripts/post-compaction.sh",
          "timeout": 10,
          "statusMessage": "Recovering engram context after compaction..."
        }
      ],
      "matcher": "compact"
    }
  ],
  "SubagentStop": [
    {
      "hooks": [
        {
          "type": "command",
          "async": true,
          "command": "${CLAUDE_PLUGIN_ROOT}/scripts/subagent-stop.sh",
          "timeout": 10
        }
      ]
    }
  ],
  "UserPromptSubmit": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "${CLAUDE_PLUGIN_ROOT}/scripts/user-prompt-submit.sh",
          "timeout": 2
        }
      ]
    }
  ]
}

"Runs shell scripts on Stop, SessionStart (startup/clear/compact), SubagentStop, UserPromptSubmit to load cortex memory, recover context post-compaction, and manage session lifecycle. No bash or file writes."