HAR: Open Source Tool for Isolating and Validating Multi-Agent Coding Workflows
Fluffybaxter · reddit · 2026-08-07
HAR is an open-source CLI and MCP server tool designed to solve pain points when scaling multi-agent coding workflows.
- Core Issues: Multiple agents running in parallel often collide (ports, DBs, git state), and the lack of standardized verification forces developers to manually re-review code.
- Isolation: Assigns each agent its own git worktree, branch, ports, and database for collision-free parallel execution.
- Deterministic Validation: Runs project checks through a fixed pipeline, binding results to the exact code hash to ensure unverified trees cannot be committed.
- Observability: Provides a local Mission Control dashboard to monitor all repos, runs, and validations in one place.
The tool is compatible with mainstream MCP clients like Claude Code and Cursor.
Related event: Open-Source Tool HAR Resolves Multi-Agent Coding Conflicts(2 posts)→
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