Rspack Tracing

When your Rspack build is crashing or crawling, this skill walks you through capturing and analyzing trace files to find the culprit. It shows you how to run builds with RSPACK_PROFILE flags, then either tail the trace for quick crash diagnosis or run the bundled analysis script for full performance profiling. The workflow helps you pinpoint slow plugins and loaders by mapping hook names back to your config. It's straightforward tooling for build performance work, with references for common bottlenecks. Most useful when you're staring at a slow build wondering which of your dozen plugins is the problem.

Install to Claude Code

npx -y skills add rstackjs/agent-skills --skill rspack-tracing --agent claude-code