// Profiles Bun TypeScript and JavaScript package scripts. Use for launcher, benchmark, or packaging hot paths; use ccusage-rust-profile for native CLI performance.
| name | bun-cpu-profile |
| description | Profiles Bun TypeScript and JavaScript package scripts. Use for launcher, benchmark, or packaging hot paths; use ccusage-rust-profile for native CLI performance. |
Use this skill for TypeScript package scripts. The production CLI is Rust-first,
so native command performance work should use the ccusage-rust-profile skill
instead.
Read references/profile-workflow.md before profiling. It contains the Bun
profiler commands, ccusage branch-vs-main setup, hyperfine validation,
profile-reading checklist, Bun reference lookup, and lessons from past ccusage
performance work.
Guides ccusage Rust tests. Use when adding or fixing cargo tests, CLI snapshots, Claude model pricing, LiteLLM compatibility, or Rust fixture-backed parser and loader tests.
Guides ccusage TypeScript package and tooling work. Use when editing apps/ccusage .ts/.js files, Vitest tests, Bun scripts, package launchers, schema tooling, or benchmark scripts.
Guides ccusage Rust implementation work. Use when editing rust/crates, native packaging, parser/module layout, pricing embedding, or Rust/TypeScript parity.
Creates atomic Conventional Commits. Use when committing code changes, splitting hunks into revertable units, or writing detailed commit messages.
Runs the full PR lifecycle. Use when creating a branch, committing, pushing, opening a PR, requesting AI review, and driving CI and review to completion.
Guides t-wada Red-Green-Refactor TDD. Use when implementing features, fixing bugs, or refactoring logic with strict test-first development.