PostHog Free-Tier A/B Testing for Skill Descriptions

Pattern for A/B testing AI-agent-facing content (skill descriptions, package copy, landing page variants) using PostHog's free tier. Ships the event schema, the variant-assignment edge middleware for Next.js, the conversion-tracking setup, and the query that tells you which variant produced more AI-agent retrievals vs. human clicks. No managed-service lock-in.

Discovered on External via @thetalkinghedge