The Contract Layer That Bridges Protocols to Platforms

MCP connects tools. A2A connects agents. A survey of the four dominant protocols reveals a shared gap: none addresses the contract layer.

The contract layer is the portable definition of an agent — its identity, its permissions, and the governance rules that follow it across environments.

Without it, every framework defines agents differently. LangChain, CrewAI, Kubernetes, and GitLab each require distinct configuration schemas.

Supporting M agent types across N platforms means maintaining M×N configurations — a combinatorial scaling problem that compounds with every new integration.

OSSA doesn't replace MCP or A2A — it's the portable manifest that references both.

Define once in YAML. Export to any platform.