New skills:
- autoresearch: Karpathy-inspired iterative optimization loops for conversion content
- deck-generator: AI-generated slide decks with Imagen 4.0 + Google Slides
- yt-competitive-analysis: YouTube outlier detection and packaging pattern extraction
- x-longform-post: X article writer with 24-pattern humanizer (AI slop detector)
Also adds Makefile for pre-commit hook auto-install (make setup).
All 4 skills passed sanitizer scan. All READMEs include CTA blocks.
Autoresearch credits Karpathy for the pattern inspiration.
