commit
Create conventional commits. Use when: committing staged changes. Triggers on: '/commit', 'conventional commit'.
agent-browser
Browser automation for web testing, screenshots, data extraction. Use when: navigating websites, filling forms, testing web apps. Triggers on: 'open browser', 'screenshot', 'click element'.
code-quality
Code quality standards. Defines complexity management, modular design, code smell detection. Applied automatically when writing or reviewing code.
comment-cleanup
Clean up code comments. Use when: improving comment quality, removing redundant comments. Triggers on: 'clean up comments', 'comment cleanup'.
diffx-review
Run a diffx code review session. Use 'start' to launch the browser UI for inline comments, then 'finish' to apply them. Use when the user invokes /diffx-review.
english-mode
Toggle English-only mode. Forces English input and provides grammar feedback. Use when: '/english', 'english mode', 'toggle english'.
find-skills
Helps users discover and install agent skills when they ask questions like "how do I do X", "find a skill for X", "is there a skill that can...", or express interest in extending capabilities. This skill should be used when the user is looking for functionality that might exist as an installable skill.
investigate
Systematic root-cause debugging. Use when: diagnosing bugs, investigating failures, debugging flaky tests, tracing unexpected behavior. Triggers on: '/investigate', 'debug this', 'why is this failing', 'find the root cause', 'flaky test'.
ios-app-design
iOS app design guidelines based on Apple HIG and iOS 26 Liquid Glass. Use when: (1) Designing iOS app interfaces, (2) Reviewing iOS UI code, (3) Building SwiftUI/UIKit views, (4) Adopting Liquid Glass design, (5) Creating app icons. Triggers on: iOS design, SwiftUI layout, tab bar, navigation bar, Liquid Glass, SF Symbols, Dynamic Type, safe area, app icon, HIG.
nix-darwin
nix-darwin dotfiles configuration for macOS with Nix flakes and home-manager. Use when: adding/modifying programs, writing nix modules, editing host configs (workstation/homelab), debugging darwin-rebuild errors, managing homebrew packages via nix, or improving nix architecture.
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opencode-delegate
Delegate a coding task to OpenCode via ACP. Claude Code constructs the prompt, dispatches via acpx, then reviews the result (spec compliance + code quality). Use when: offloading implementation to OpenCode, using OpenCode as implementer backend. Triggers on: '/opencode-delegate', 'delegate to opencode', 'let opencode handle this'.
peer-review
Independent second-opinion code review using Codex CLI. Use when: wanting an external AI reviewer's perspective, cross-validating before push, getting a 'second pair of eyes'. Triggers on: '/peer-review', 'codex review', 'second opinion', 'peer review my changes'.
react-best-practices
React best practices from react.dev and Vercel. Use when: (1) Reviewing React code, (2) Debugging performance issues, (3) Optimizing bundle size, (4) Writing effects or state logic. Triggers on: React performance, re-render, bundle size, waterfalls, code splitting, memo, useCallback, useMemo, useEffect, SSR flicker, initial load slow, React Compiler, state structure, immutable update, setState array object.
review
Self-review of code changes (branch diff, staged, or uncommitted). Use when: reviewing code before pushing, checking diff quality, self-reviewing a PR, creating a PR (always use --peer), reviewing uncommitted work. Triggers on: '/review', 'review my changes', 'review this branch', 'self-review', 'pre-push review', 'review uncommitted', 'review staged', 'create PR', 'open PR', 'submit PR'.
rust-design-patterns
Rust idioms and design patterns for writing idiomatic code. Use when: (1) Writing new Rust code, (2) Reviewing Rust code, (3) Solving borrow checker issues, (4) Designing Rust APIs. Triggers on: Rust ownership problems, lifetime errors, API design questions, 'how to do X idiomatically in Rust'.
skill-creator
Guide for creating Claude skills. Use when: creating or updating skills. Triggers on: 'create skill', 'new skill', 'skill template'.
slow-is-fast
Research → Plan → Code workflow. Enforces evidence-based reasoning, codebase research, and structured planning before code modifications. Applied automatically for moderate+ tasks.