Search this repository's skills by keyword, work out which scene pack a set of skills belongs to (or suggest an ad-hoc combo with ordering), and print repo-wide statistics — all read from the real manifest.json and SKILL.md files, never a hardcoded list. Use when the user asks to find a skill / search skills / which skill does X / list repo stats / skill lookup / skill discovery. Do NOT use for lint compliance (that is skill-linter) or for writing a new skill (skill-author).
