Contract

Input: problem or task defined by the skill body.
Output: Markdown artifact or structured result with completion criteria met.
Side effects: none (design/review/documentation only unless explicitly stated).
Dependencies: none (self-contained unless linked to other skills).
Stop condition: all process steps completed; artifact saved; criteria checked.
Risk: low.
Boundary: produces reasoning or documentation artifacts; does not modify external systems unless explicitly instructed.

Auth

Use this skill when a project needs authentication or authorization defined before implementation. Keep the seam small and the responsibilities explicit: who is the user, who can act, and where the trust boundary sits. Treat identity as untrusted input until the project has verified it at the declared boundary.