We connected 1,573 real Claude Code sessions and found that skills fire in only 4% of sessions, 26% get abandoned within 60 seconds, and error patterns in the first 2 minutes predict failure. So we turned it into Rudel and release it to the world. Rudel gives your dev team a dashboard for token usage, session patterns, session errors, and quality signals across every team member. Works also for Codex. It's free, open source and self-hostable.