Declared by registration metadata: Open-source firewall for MCP tool definitions. Scans a server's tools/list for prompt injection, secret requests, exfiltration and hidden Unicode before a host shows them to a model, with deterministic published rules (version and digest in every verdict) and a published, reproducible false-positive profile.
WARDEN
Open-source firewall for MCP tool definitions. Scans a server's tools/list for prompt injection, secret requests, exfiltration and hidden Unicode before a host shows them to a model, with deterministic published rules (version and digest in every verdict) and a published, reproducible false-positive profile.
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