Catalog
All AI skills
5 skills. Every one is readable here; downloads and live use need a subscription.
analytics
When the user wants to set up, improve, or audit analytics tracking and measurement.
data-engineering-data-driven-feature
Build features guided by data insights, A/B testing, and continuous measurement using specialized agents for analysis, implementation, and experimentation.
deterministic-design
Render the UI and prove it's balanced + usable: a deterministic layout audit (centroid / optical-center / pixel-oracle balance via explicit math + annotated screenshot) plus a vision-judged Nielsen usability audit by a separate fresh-eyes judge. The measurement layer taste-only design skills lack.
performance-profiling
Performance profiling principles. Measurement, analysis, and optimization techniques.
tokenwise
Measurement-driven model router for Claude Code. Routes Haiku/Sonnet/Opus per task class, logs every routed task with real $ numbers, and A/B tests cheaper tiers before you trust the savings.