# Catalogue

> Public catalogue components.

JSON: https://leyline.ahensya.com/api/v1/components

- [Playwright](https://leyline.ahensya.com/components/playwright.md): Browser automation for tests and agents. Use the browser slice without taking the whole test-runner product box.
- [Magika](https://leyline.ahensya.com/components/magika.md): Magika (google/magika) is Google’s AI-powered file content-type detector: it classifies files from byte content (not just extensions / magic bytes), locally, in milliseconds on CPU. First-party README: ~100M-sample training, 200+ content types, ~99% avg precision/recall on their test set; used at scale for routing Gmail/Drive/Safe Browsing samples to scanners; also integrated with VirusTotal and abuse.ch (README claims).
- [REA](https://leyline.ahensya.com/components/rea.md): README tagline: "One MCP for reverse engineering across binaries, applications, and runtime behavior." The agent calls REA through MCP to inspect a local target and trace relevant code; REA returns findings with their evidence, and the agent uses them to explain the behavior or write and test an implementation.
- [kogiQA MCP Web Browser](https://leyline.ahensya.com/components/kogiqa-mcp-web-browser.md): A Model Context Protocol server that gives LLM agents selector-free browser automation for debugging, documenting, and testing web applications through natural-language instructions.
- [Factory Droid](https://leyline.ahensya.com/components/factory-droid.md): A coding-agent terminal interface for scoped repository changes and reviewable development tasks.
- [RTK](https://leyline.ahensya.com/components/rtk.md): A Rust-based CLI proxy that filters and compresses command output before it reaches an LLM or coding agent. The repo positions RTK as a low-overhead way to reduce token consumption on common development commands like git status, git diff, test runners, grep/search, logs, and cloud/devops tooling.