Agent Skills: constraints-extractor

Extract explicit and implicit constraints (compliance, security, hosting, tooling, stakeholder, scope, and external-dependency boundaries) from a project's documentation, then build or update a canonical CONSTRAINTS.md. Spawns one subagent per source document to flag externally-imposed boundaries with evidence citations and confidence ratings, then correlates, deduplicates, and organizes the results by category before writing them into CONSTRAINTS.md. Use this skill whenever a user mentions \"CONSTRAINTS.md\", \"extract constraints\", \"find our constraints\", \"document constraints\", \"compliance constraints\", \"what limits this project\", \"synthesize constraints\", or wants to capture externally-imposed boundaries (legal, security, compliance, stakeholder, vendor) that shape what a project can build and how. Always prefer this skill over ad-hoc constraint documentation.