# Takumi Runner {#takumi-runner}

**Takumi Runner** is a runner service that traces GitHub Actions workflow execution with eBPF.

Key capabilities:

- **[Trace Collection](/docs/t/runner/features/trace-collection.md)**: Records process, network, and file operations during workflow execution with eBPF.
- **[Trace Visualization & Analysis](/docs/t/runner/features/trace-visualization.md)**: View collected traces in timelines and process trees to investigate suspicious behavior.
- **[Auto Triaging](/docs/t/runner/features/auto-triaging.md)**: Automatically detects and classifies events that require attention based on trace data.

Takumi Runner operates as a GitHub Actions self-hosted runner. You can get started by simply changing the `runs-on` label in your existing workflow.

See [Quickstart](/docs/t/runner/quickstart.md) for setup instructions and [Limitations & Caveats](/docs/t/runner/limitation.md) for known constraints.