Target: every skill's description fits in a one-line gateway menu and
leads with trigger keywords an agent would match on. Drops filler like
'Use this skill to', 'A skill for', 'This skill provides'.
Before: max description length was 791 chars (architecture-diagram),
74 of 81 built-in skills were >60 chars.
After: max 60, mean 54, all 81 built-in skills <=60.
Rewritten with double-quoted YAML scalars to preserve Chinese/arrow
glyphs (baoyu-comic, yuanbao, youtube-content).
Adds a songwriting craft and AI music prompt engineering skill covering
song structure, rhyme/meter, emotional arcs, Suno metatag reference,
phonetic tricks for AI singers, parody adaptation, and production workflow.
Complements existing music skills (heartmula, audiocraft, songsee) which
cover model setup/usage — this one covers the creative process itself.
Also removes the empty skills/music-creation/ category (only had a
DESCRIPTION.md, no actual skills).
Co-authored-by: 123mikeyd <123mikeyd@users.noreply.github.com>
