Tool suggestion: spec contracts for skill collections (open source)

obsidian-skills is one of the most-used collections in the ecosystem — at that scale, each skill's promise deserves to be checkable. We open-sourced skill-spec: six-section SPEC template (Purpose / Interface / Procedure / Acceptance / Guards / Honest limits) + zero-dependency linter, exit 0/1, CI-ready: github.com/chenhz01/skill-spec. Happy to run a sample. Ignore if not relevant.