Workerd Safety Review

cloudflare/workerd-safety-review

Memory safety, thread safety, concurrency, and critical detection patterns for workerd code review. Covers V8/KJ boundary hazards, lifetime management, cross-thread safety, and coroutine pitfalls. Load this skill when reviewing any C++ code.

125 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

8447

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/cloudflare/workerd --skill workerd-safety-review

The instruction itself

as written by the author

Always use the docs/reference/cpp-safety-review-checklist.md file for detailed checklists on memory safety, thread safety, and concurrency correctness when planning, writing, or reviewing code changes.

How to use it

Copy the folder

Take cloudflare/workerd-safety-review from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.