Skill Claude CodeCodex
Use when designing error-handling strategy for a feature — error classification, throw-vs-return conventions, retry/circuit-breaker/fallback decisions, and error-to-user-message mapping. Triggers on "error handling", "retry strategy", "circuit breaker", "error propagation", "错误处理", "重试策略", "熔断", "降级" — also when user…
Skill Claude CodeCodex
Use when internationalizing an application — message extraction, ICU/MessageFormat, locale routing, RTL layout, pluralization/gender, and locale-aware formatting. Triggers on "i18n", "localization", "l10n", "RTL", "国际化", "本地化", "多语言".
Skill Claude CodeCodex
Use when implementing the work described by a spec or tickets — drives TDD within each slice, runs typechecks and tests regularly, and closes with code-review before committing. Also covers lightweight changes (small edits, mechanical renames, project scaffolding) that don't need a full spec. Triggers on "implement"…
Skill Claude CodeCodex
Use when executing work through subagents — dispatching independent tasks to parallel isolated-context agents, or driving a plan as a sequence of implementer-subagents with review checkpoints. Scales beyond a single context window. Triggers on "parallel agents", "subagent execution", "dispatch tasks", "fan out", "并行…
Skill Claude CodeCodex
Use when optimizing cloud spend — measure before you optimize: establish a cost baseline, identify the cost driver, then improve. Triggers on "cost", "cloud bill", "FinOps", "spend", "成本优化", "云账单", "费用". Not for latency tuning (use performance) or capacity/load validation (use load-testing).
Skill Claude CodeCodex
Use when optimizing performance — measure before you optimize: profile, identify bottlenecks, then improve. Triggers on "webperf", "performance regression", "慢", "性能优化", "性能调优" — also when user says "太慢了" / "卡顿".
Skill Claude CodeCodex
Use when restructuring code without changing behavior — extract modules, move classes, redraw dependency boundaries, split or merge files. Behavior-preserving structural changes that make the codebase easier to evolve, distinct from single-file clarity cleanup. Triggers on "refactor structure", "extract module", "move…
Skill Claude CodeCodex
Use when the code is too complex — clarity over cleverness, removes speculative abstractions, dead complexity, and earns-its-cost structures. Triggers on "simplify", "too complex", "refactor for clarity", "简化", "太复杂", "重构求清晰". Not for cross-module structural changes (use refactoring) or architecture audit (use…
Skill Claude CodeCodex
Use when testing APIs or designing API test strategies — contract testing, REST/GraphQL testing, and integration testing. Triggers on "test API", "contract testing", "integration test", "API 测试", "接口测试", "契约测试".
Skill Claude CodeCodex
Use when writing end-to-end or browser tests — user journeys, form submission, and runtime UI verification through a browser automation tool (Playwright by default, or your framework's equivalent). Triggers on "playwright", "e2e test", "browser test", "end-to-end", "端到端测试", "浏览器测试".
Skill Claude CodeCodex
Use when validating capacity under load — generate realistic and adversarial traffic, find breaking points, characterize saturation, validate autoscaling. Triggers on "load test", "stress test", "capacity", "k6", "Locust", "wrk", "压测", "压力测试", "容量测试".
Skill Claude CodeCodex
Use when implementing any feature or bugfix, before writing implementation code — red-green-refactor loop, one vertical slice at a time. Triggers on "tdd", "test-driven", "red green refactor", "测试驱动开发", "红绿重构", "测试驱动". Not for spec-driven slice implementation (use implement — it drives TDD within each slice) or…
Skill Claude CodeCodex
Use when generating test files for existing code or from a spec — language-agnostic, works with any test framework. Triggers on "generate tests", "write tests for", "生成测试", "生成测试代码", "补测试".
Skill Claude CodeCodex
Use when reviewing changes for accessibility — WCAG conformance, axe-core findings, keyboard and screen-reader support, contrast. Triggers on "accessibility", "a11y", "WCAG", "screen reader", "无障碍", "可访问性". Not for general code quality (use code-review), machine-detectable lint (use linting), or runtime behavior bugs…
Skill Claude CodeCodex
Use when reviewing code — pre-merge two-axis review (Standards + Spec), in-flight adversarial doubt, evidence-before-done verification, or receiving review feedback. Triggers on "review this", "code review", "before merge", "代码审查", "合并前审查", "帮我看看这代码", "能合并吗", "are you sure", "verify before done", "收到评审意见". Not for…
Skill Claude CodeCodex
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes — disciplined diagnosis: build a red loop, minimise, hypothesise, instrument, fix, regression-test. Also covers log triage when full reproduction isn't needed yet. Triggers on "debug", "bug", "test failure", "unexpected…
Skill Claude CodeCodex
Use when fixing machine-detectable code issues — run linters and static analyzers (ESLint, Ruff, Clippy, golangci-lint), resolve findings, suppress false positives with justification, tighten config. Automated quality gate, distinct from human-judgment review. Triggers on "lint", "linting", "fix eslint", "static…
Skill Claude CodeCodex
Use when reviewing changes for security — secrets, auth, injection, access control, and hardening. Triggers on "security review", "check for vulnerabilities", "安全审查", "安全审计", "漏洞检查".
Skill Claude CodeCodex
Use when working on CI/CD pipelines and automation — build, test, and deploy automation, pipeline design, and deployment strategies. Triggers on "CI pipeline", "GitHub Actions", "deployment strategy", "CI/CD", "流水线", "持续集成", "部署策略".
Skill Claude CodeCodex
Use when deprecating old code or APIs, migrating to a new system, or upgrading dependencies — staged deprecation paths and migration strategies that preserve behavior across the transition. Triggers on "deprecate", "migrate", "sunset API", "弃用", "迁移", "升级依赖", "更新这个库", "upgrade dependency".
Skill Claude CodeCodex
Use when committing, branching, resolving merge or rebase conflicts, or setting up git guardrails and pre-commit hooks — resolves conflicts by intent traced to each side's source, never --abort. Triggers on "commit", "merge conflict", "rebase", "pre-commit", "提交", "合并冲突", "分支管理".
Skill Claude CodeCodex
Use when polishing an open source project's GitHub presence — README, topics/About description, commit-history narrative story, and trending-repo positioning. Triggers on "polish my repo", "beautify open source project", "开源项目美化", "优化项目展示".
Skill Claude CodeCodex
Use when deploying or launching to production — checklist-driven launch with rollback readiness and launch-day verification. Triggers on "ship", "deploy", "launch", "go live", "上线", "发布", "部署到生产".
Skill Claude CodeCodex
Use when documentation drifts from code — syncs PRD/TECH/API/FLOW/TODO to the codebase and produces an audit report. Triggers on "docs out of date", "documentation drift", "sync docs", "文档同步", "写文档", "写 README", "文档化这个功能", "文档审计".