Bun Agent Skills
A JavaScript runtime, bundler, test runner, and package manager.
Showing 1–8 of 8 skills
implementing-jsc-classes-cpp
Implements JavaScript classes in C++ using JavaScriptCore. Use when creating new JS classes with C++ bindings, prototypes, or constructors.
.claude/skills/implementing-jsc-classes-cpp/SKILL.md
BunContributors
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File history ↗implementing-jsc-classes-rust
Creates JavaScript classes using Bun's Rust bindings generator (.classes.ts). Use when implementing new JS APIs in Rust with JSC integration, prototypes, or constructors.
.claude/skills/implementing-jsc-classes-rust/SKILL.md
BunContributors
GitHub-linked commit authors for this SKILL.md at the saved revision. Co-authors and history before file renames are not included.
File history ↗javascriptcore-garbage-collector
JSC GC reference for Bun. Use for use-after-free, JS object leaks, "collected too early", or when touching WriteBarrier, visitChildren, visitAdditionalChildren, JSRef, JSC::Strong/Weak, hasPendingActivity, ensureStillAlive, addOpaqueRoot, reportExtraMemoryAllocated, IsoSubspace, HeapAnalyzer, finalize.
.claude/skills/javascriptcore-garbage-collector/SKILL.md
BunContributors
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File history ↗rust-system-calls
Guides using bun_sys for system calls and file I/O in Rust. Use when implementing file operations, opening fds, or any syscall path instead of std::fs or libc.
.claude/skills/rust-system-calls/SKILL.md
BunContributors
GitHub-linked commit authors for this SKILL.md at the saved revision. Co-authors and history before file renames are not included.
File history ↗slowest-tests
Find the top-N slowest test files in CI from a recent BuildKite run, optionally posting the results to a Slack channel as a formatted table. Use when asked to find slow CI tests, "what's making CI slow", or to post a slow-test report to Slack.
.claude/skills/slowest-tests/SKILL.md
BunContributors
GitHub-linked commit authors for this SKILL.md at the saved revision. Co-authors and history before file renames are not included.
File history ↗verify
Verify a Bun runtime change by driving the debug binary end-to-end.
.claude/skills/verify/SKILL.md
BunContributors
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File history ↗writing-bundler-tests
Guides writing bundler tests using itBundled/expectBundled in test/bundler/. Use when creating or modifying bundler, transpiler, or code transformation tests.
.claude/skills/writing-bundler-tests/SKILL.md
BunContributors
GitHub-linked commit authors for this SKILL.md at the saved revision. Co-authors and history before file renames are not included.
File history ↗writing-dev-server-tests
Guides writing HMR/Dev Server tests in test/bake/. Use when creating or modifying dev server, hot reloading, or bundling tests.
.claude/skills/writing-dev-server-tests/SKILL.md
BunContributors
GitHub-linked commit authors for this SKILL.md at the saved revision. Co-authors and history before file renames are not included.
File history ↗
Discovery details
Tracked SKILL.md files, excluding tests, fixtures, dependencies, and vendored directories. The Instructions analysis keeps its own pinned revision.
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