菜单
Use when something is slow — "why is this slow", "optimize this", "make it faster", jank, lag, a slow query, slow page load, slow render, slow build, high memory, a timeout. Not for correctness bugs; that's debug.
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
基于 SOC 职业分类
Use when implementing any non-trivial feature, change, or fix — "build me X", "add this feature", "implement this", "make this work", "can you create". Covers new functionality, meaningful changes to existing code, and anything where quality matters. Not for a one-line diff — just do that.
Use when a bug isn't obvious, resists a quick fix, keeps coming back, or you're about to start guessing — "why is this broken", "this keeps happening", intermittent or flaky failures, a crash you can't explain, behaviour that makes no sense. Not for a typo or an obvious mistake.
Use when something has to be removed or retired — a feature, endpoint, table column, config key, feature flag, package or whole service; migrating consumers off an old API or version; code that looks dead but might not be. Symptoms: "can we delete this?", "is anything still using this?", "we need everyone off v1", "kill the old one". Not for restructuring that keeps the interface — that's the `refactorer` agent.
Use when you are about to tell the user something works, hand over a decision you feel confident about, or make a change that can't be undone — and when a review came back suspiciously clean. Symptoms: "are you sure?", "you said that was fixed last time", nothing to report, the answer feels too tidy. Not for a routine small change; not for reviewing a finished diff — that's `code-reviewer`; not for driving a finished change end-to-end to get evidence — that's `qa`. Doubt tests a claim (a diagnosis, a design call, an answer), which is often not runnable code.
Use when an internal package, module, or shared component has little or no usage documentation and people (or future AI sessions) keep using it wrong — "document this", "write docs for our library", onboarding someone onto an internal API, or handing a package to another team.
Use when work needs to survive losing context — before a /clear on a long task, when pausing something unfinished, when handing over to a teammate or the next session, when the context window is filling up on multi-day work, or when a long multi-step task starts re-covering ground it already finished. Not the project's decision history across weeks — that's `roadmap`.
Use when something is slow — "why is this slow", "optimize this", "make it faster", jank, lag, a slow query, slow page load, slow render, slow build, high memory, a timeout. Not for correctness bugs; that's debug.
# Copy this command into Claude Code to install this skill
/plugin add https://github.com/mehrad-dm/mastermind/tree/master/skills/perf
For more information, visit the GitHub repository.