
npm packages have manifests. Python wheels have metadata. Docker images have layer history.
AI agents, being handed access to APIs, databases, and production systems, ship as a directory of files with no standard description of what they do.
I built .agent to fix that.
The .agent file has three things:
A manifest: what the agent does, what it accesses, what it's allowed to call
A cryptographic integrity hash: detects any modification after packaging
A behavioral trust score: computed from code analysis before the hash is finalized
The trust score comes from a 4-level analysis pipeline:
L1: manifest schema validation (+20)
L2: static AST analysis of source code (+30)
L3: LLM semantic verification with citation requirements (+25)
L4: runtime sandbox observation (+25)
Levels you can't run get documented skip penalties.
Max score: 100.
Transfer, transport, share your agents, and know what they've been developed to do.

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