Favz: trailofbits/buttercup agent setuphttps://favz.co/repos/trailofbits/buttercup.htmlMCP servers, skills and plugins added to or removed from trailofbits/buttercup.trailofbits/buttercup added langfusehttps://favz.co/repos/trailofbits/buttercup.htmlfavz-trailofbits/buttercup-skill:langfuse-add-2026-05-19T07:21:29ZTue, 19 May 2026 07:21:29 +0000