Open-source tools and protocols for multi-agent engineering workflows.
MCP gives your agent tools. ACP connects your IDE to an agent. A2A helps cloud agents find each other. OACP is the async messaging layer that coordinates them all — typed workflow messages over persistent transport that survives crashes. Zero infrastructure required.
- OACP — Open Agent Coordination Protocol. File-based coordination for multi-agent workflows — task dispatch, code review, handoff, and brainstorm over async YAML messaging. Runtime-agnostic, zero infrastructure.
- agent-estimate — AI-powered estimation for software engineering tasks. PERT/METR calibrated, available as a CLI, GitHub Action, and Claude Code plugin.
- oacp-skills — Reusable skills for OACP-compatible agents. Check-inbox, review-loop, and self-improve form a complete agent-to-agent code review and maintenance loop.
- cortex — Multi-agent SSOT (single source of truth) built on OACP. Consolidates session debriefs into a daily snapshot.
- kiloloop.com — company
- oacp.dev — protocol docs