name: profile description: Profiles ccusage performance. Use when debugging slow Rust CLI commands, TypeScript package scripts, launchers, benchmarks, packaging hot paths, or branch-vs-main speed changes.
ccusage Profile
Use this skill for ccusage performance work. The production CLI is Rust-first, but the TypeScript launcher and Nushell benchmark/package scripts still need focused profiling when those paths are in scope.
Rust
Read references/rust.md for native CLI profiling, branch-vs-main worktree
setup, hyperfine validation, JSON parity checks, and PR performance workflow
reproduction.
TypeScript And Scripts
Read references/typescript.md for Node profiler commands, package script
profiling, TypeScript launcher/Nushell benchmark setup, profile reading, and
ccusage-specific performance lessons.