Fulmar Gives AI Agents a Boundary

Field notes

Fulmar is presented as a policy and lifecycle layer around DeepSeek Harness rather than as another model or agent loop. Its route model distinguishes a verified local runtime with loopback-only access from hosted providers opened to one consented origin, while custom endpoints must declare supported protocols, models, and capabilities. The example plugin grants temporary access to a named public HTTPS host and rejects redirects, private addresses, and binary responses. Compatibility claims remain under release review.