Compare Generations

If you're using Tuist and wondering why your build cache suddenly tanked, this does the forensics. Point it at two generation runs (by ID, dashboard URL, or branch name) and it'll compare cache hit rates, flag performance regressions, and trace which target changes caused invalidation cascades. The real value is in the root cause analysis: it distinguishes between a target that actually changed versus the dozen downstream targets that rebuilt only because their dependency hashes changed. Works by calling `tuist generate list` and `tuist generate show`, then walking through git diffs to map file changes back to modules. Best used during PR reviews or when investigating why CI suddenly got slower.

Install to Claude Code

npx -y skills add tuist/agent-skills --skill compare-generations --agent claude-code