Skill catalog builder

Use this skill when an agent host needs deterministic discovery across more than one skill directory.

1. Read references/discovery-contract.md.
2. Review the example host policy in assets/scope-policy.json; do not assume its order is universal.
3. Run python3 scripts/build_catalog.py project=PATH user=PATH with scopes listed from highest to lowest precedence.
4. Inspect the JSON collisions and omitted arrays before activating a skill.
5. Load only the selected SKILL.md body. Load a direct reference only when that body names it.

Never execute a bundled script during discovery. Never choose an equal-precedence duplicate by incidental filesystem order.

Return the catalog budget, selected entries, collision resolutions, and omissions.