atuin

Defined in hooks/hooks.json

{
  "PostToolUse": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "${CLAUDE_PLUGIN_ROOT}/hooks/atuin-post-tool.sh",
          "timeout": 5
        }
      ],
      "matcher": "Bash"
    }
  ]
}

"Summarizes verbose outputs from Bash, Read, and Grep tools post-use: condenses diffs, logs, or technical content >10 lines to 2-3 plain sentences on changes/findings; extracts key errors and suggests fixes."