# Runners

Runner docs describe the **engine-specific** behavior: event shapes, JSON streaming, and integration notes.

- Claude: [Runner](claude/runner.md), [Stream JSON cheatsheet](claude/stream-json-cheatsheet.md), [Takopi events](claude/takopi-events.md)
- Codex: [Exec JSON cheatsheet](codex/exec-json-cheatsheet.md), [Takopi events](codex/takopi-events.md)
- OpenCode: [Runner](opencode/runner.md), [Stream JSON cheatsheet](opencode/stream-json-cheatsheet.md), [Takopi events](opencode/takopi-events.md)
- Pi: [Runner](pi/runner.md), [Stream JSON cheatsheet](pi/stream-json-cheatsheet.md), [Takopi events](pi/takopi-events.md)