Show HN: Cross-agent messaging and shared memory over the local filesystem

Category: infrastructure

Tags: ai-agents, filesystem-protocol, cli-tool

Score: 6.5/10 (Innovation: 6, Technical: 6, Documentation: 7, Utility: 7)

OACP provides a file-based protocol for multi-agent AI workflows, enabling cross-agent messaging and shared memory without any server or daemon. It uses plain YAML files in a shared directory for inbox/outbox messaging and durable memory, offering a novel approach by combining the filesystem as transport with structured review loops and quality gates.

Target audience: backend devs, devops, data engineers

Repository: https://oacp.dev · Python · Apache-2.0 · 11 stars

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