harmonist
Portable AI agent orchestration with mechanical protocol enforcement. 186 agents, zero runtime dependencies.
Forcing review, memory and supply-chain checks to actually run before an agent's turn completes.
You would rather the model retained discretion over when the process applies.
About harmonist
A drop-in multi-agent framework for Cursor, Claude Code, Copilot, Windsurf, Aider, and other AI coding assistants.
Most AI coding frameworks trust the language model to follow the rules. Harmonist refuses to let it skip them. Every code-changing turn is gated by hooks that check whether the required reviewers ran, whether memory was updated, and whether the supply chain of every shipped file is intact. If the checks fail, the turn doesn't complete — no matter how confidently the model claims it's done.
This is the first open-source agent framework where protocol enforcement is a mechanical gate, not a polite request in a prompt.
harmonist is an open-source project written primarily in Python, with 2.3k stars on GitHub. It was last updated in June 2026.
