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.

Postgres

Use this skill when PostgreSQL is the persistence layer and the schema or query shape matters. It should make the data model durable and the query seam explicit so changes can be migrated safely.

Contract