# brat

> brat is a multi-agent harness for AI coding tools. It coordinates Claude Code, Aider, OpenCode, Codex, Continue, Gemini, and GitHub Copilot working in parallel on the same codebase, with crash-safe state built on the Gritee append-only event log. Distributed as a single Rust CLI under the MIT license by neul-labs.

brat is an open-source project. There is no SaaS, no account, no telemetry. The CLI is the unit of correctness; an optional HTTP daemon (`bratd`) auto-starts when the web dashboard or multi-session coordination is needed, and idle-shuts-down after fifteen minutes by default.

## Docs

- [Home](https://brat.neullabs.com/): Overview, roles, supported engines, architecture
- [About](https://brat.neullabs.com/about/): Why brat is a CLI, not a SaaS; the design thesis
- [Blog](https://brat.neullabs.com/blog/): Field reports on running agent fleets, architecture deep-dives
- [Docs subdomain](https://docs.neullabs.com/brat/): Full technical documentation
- [Source](https://github.com/neul-labs/brat): MIT-licensed Rust workspace

## Compare

- [vs AutoGen](https://brat.neullabs.com/compare/autogen/)
- [vs GNU parallel](https://brat.neullabs.com/compare/gnu-parallel/)
- [vs raw tmux + scripts](https://brat.neullabs.com/compare/raw-tmux/)

## Optional

- [RSS](https://brat.neullabs.com/rss.xml): Blog feed
- [llms-full.txt](https://brat.neullabs.com/llms-full.txt): Long-form summary with verified facts