code-auditor
Analyze a project to provide a summary of line counts per programming language (e.g., how many lines of Go vs Rust). Generates a PDF summary report.
slidev
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web-browser
Fast browser automation for AI agents via the agent-browser CLI. Use for navigating web pages, filling forms, clicking, taking screenshots, extracting data, testing web apps, login flows, persistent sessions, video recording, React tree inspection, and exploratory QA / dogfooding (systematic bug hunts with reproduction evidence). Chrome/Chromium via CDP with accessibility-tree snapshots and compact @eN element refs. Triggers: open a URL, fill a form, click a button, scrape a page, take a screenshot, test a web app, dogfood / QA / bug-hunt a site. Pass --aws-agent-core to run against AWS Bedrock AgentCore cloud browsers instead of local Chrome (credentials auto-loaded from sops-nix secrets when available). Also automates Electron desktop apps (VS Code, Slack desktop, Discord, Figma, Notion, Spotify) — for those load the electron-ui skill; for Slack workflows specifically load slack-ui.
tmux
Remote control tmux sessions for interactive CLIs (python, gdb, etc.) by sending keystrokes and scraping pane output.
web-research
Researches the web thoroughly, e.g., how to use an API, library, or reference architecture. Can also be used as fallback when the WebSearch tool fails. Use when the user asks to research a complex topic.
writing-clearly-and-concisely
Use when writing documentation, commit messages, error text, explanations, reports, or summaries. Applies especially to Jira tickets, pull request descriptions, and review comments: always start these with a TL;DR summary. Combines Strunk, ASD-STE100 (Simplified Technical English), and ISO 24495-1 (plain language), for English and German text. Triggers: writing human-readable content, verbose text, unclear explanations, Jira tickets, pull requests, review comments.
stream-deck
Helper to safely edit manifest files when developing plugin for Elgato Stream Deck. Use when creating, validating, or repairing Stream Deck manifest.json files.
red-green-refactor
Domain-agnostic TDD methodology for iterative improvement. Enforces baseline measurement, minimal changes, and rigorous testing through commitment devices. Use when applying red-green-refactor workflow to any domain: prompts, skills, code, tests. Triggers: TDD methodology, baseline measurement, iterative improvement, red-green-refactor.
slack-ui
Interact with Slack workspaces via browser automation: check unread channels, navigate the sidebar, send messages, search conversations, extract data from messages and threads. Triggers: 'check my Slack', 'what channels have unreads', 'send a message to', 'search Slack for', 'find who said'. Connects to an existing Slack browser tab or Slack desktop (via electron-ui) on port 9222.
jira
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grafana
Manage Grafana dashboards, datasources, folders, alerting, and annotations via the HTTP API. Query datasources (PromQL, LogQL, TraceQL, SQL) and export results to Parquet, TSV, or JSONL. Use when creating, editing, or querying Grafana resources programmatically.
nix-shell
Search Nix packages and run commands with packages from nixpkgs that are not installed locally. Use when you need a package not available locally or want to search nixpkgs.
devenv
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database
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adr-writing
Use when documenting significant architectural decisions. Creates focused ADRs explaining context, decision, and alternatives. Prevents vague documentation and implementation detail bloat. Triggers: 'create ADR', 'document decision', making technology/framework/persistence/auth choices, cross-cutting concerns.
eval-notebook
Execute .ipynb notebooks (Python, Kotlin, or any Jupyter kernel) without overwriting; return LLM-friendly JSON with outputs and errors. Use when you need to run or validate a Jupyter notebook.
electron-ui
Automate Electron desktop apps (VS Code, Slack, Discord, Microsoft Teams, Figma, Notion, Spotify, Obsidian, Linear, 1Password, …) by connecting to their Chrome DevTools Protocol port. Use when the user wants to control or test a native desktop app, or when the workflow needs CDP connect / --remote-debugging-port. Same snapshot + @eN ref workflow as web pages.
bookfusion-api
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dendritic-nix
Applies the Dendritic Pattern for structuring Nix flake configurations with flake-parts. Every file is a flake-parts module organized by feature (aspect), not by configuration class. Use when structuring Nix flakes, creating flake-parts modules, composing multi-host configs, organizing NixOS/home-manager/nix-darwin configuration, or sharing values across configuration classes. Triggers: nix flake structure, flake-parts modules, multi-host configs, aspect modules. Do NOT use for general Nix language questions, nixpkgs packaging, or NixOS module authoring unrelated to flake structure.
java-debug
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bitbucket-pr
Read and manage Bitbucket Cloud pull requests, comments, and tasks via the `bb` CLI (gildas/bitbucket-cli v0.18.1+). Use when reviewing PR feedback, replying to comments, creating tasks/PRs, or marking review tasks done. Also bridges JIRA issues to their linked Bitbucket PRs/branches/repos via Jira's dev-status API — find the PR(s) for a JIRA key (e.g. VUKFZIF-1234), even in repos that aren't cloned locally.
browser-use
Automates browser interactions for web testing, form filling, screenshots, and data extraction. Use when the user needs to navigate websites, interact with web pages, fill forms, take screenshots, or extract information from web pages.
diagram-render
Render PlantUML (@startuml…@enduml) and Mermaid fenced blocks to a self-contained HTML preview; if rendering fails, the error text must be embedded in the output image. Use when the user asks to render, preview, or export diagrams.
LangChain_1.0
Comprehensive assistance with LangChain_1.0
unit-test-generator
Intelligent unit test generator for frontend projects that detects existing test frameworks and generates comprehensive tests for functions, components, and modules. Use when you need to: (1) Add unit tests to existing codebases, (2) Set up testing infrastructure for new projects, (3) Generate test cases for specific functions or components, (4) Ensure architectural consistency in testing approach across projects. Supports Jest, Vitest, Mocha with React, Vue, Angular frameworks.
dependency-analysis
Enhanced dependency analyzer with comprehensive markdown reporting and actionable recommendations. Use when you need to optimize frontend project dependencies, detect security vulnerabilities, identify unused packages, find duplicate functionality, analyze dependency impact, generate cleanup scripts, or produce detailed Markdown reports. Supports JavaScript, TypeScript, Vue, React, Angular, and modern build tools with parallel processing and incremental analysis capabilities.
architecture-analysis
Comprehensive frontend architecture analyzer that identifies technology stacks, build tools, and architectural patterns. Use when you need to quickly understand a project's structure, dependencies, and technical configuration. Provides analysis for Vue/React/Angular frameworks, Node.js environments, package managers, TypeScript usage, linters, and architecture patterns with multiple output formats including executive summaries and visualizations.
ultracite
Enforce strict type safety, accessibility standards, and code quality for TypeScript/JavaScript projects using Biome's formatter and linter. Use when writing, reviewing, or fixing TS/JS/TSX/JSX code, checking for a11y issues, linting errors, type safety problems, or when the user mentions code quality, formatting, accessibility, or best practices.
react-next-modern
Enforce modern React 19 and Next.js App Router patterns - server-first data fetching, minimal useEffect, Server Components, Server Actions, and form hooks. Use when reviewing React/Next.js code, migrating legacy patterns, or building new features with App Router.
ui-ux-guidelines
Implementation details for accessible, performant interfaces. Use alongside vercel-design-guidelines for detailed technical guidance on interactions, animations, and forms.
vercel-design-guidelines
Check web interfaces against Vercel's design guidelines. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", "check my site against best practices", or "apply Vercel design guidelines".
react-best-practices
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
vercel-deploy
Deploy applications and websites to Vercel. Use this skill when the user requests deployment actions such as "Deploy my app", "Deploy this to production", "Create a preview deployment", "Deploy and give me the link", or "Push this live". No authentication required - returns preview URL and claimable deployment link.
interview
Conducts depth-first interview walking a plan's decision tree with mandatory recommendations. Use when user wants to stress-test a design, get grilled on a plan, or says "interview me" / "grill me" / "walk me through this".
codex
Use when the user asks to run Codex CLI (codex exec, codex resume) or references OpenAI Codex for code analysis, refactoring, or automated editing. Resolves the latest flagship model from the model registry.
x-search
Search X/Twitter for real-time developer discourse, product feedback, community sentiment, and expert opinions. Use when user says "x search", "search x for", "search twitter for", "what are people saying about", or needs recent X discourse for context (library releases, API changes, product launches, industry discussion). Also use when researching a library, framework, API, or product to supplement web search with real-time community signal — e.g. "research Bun", "what do devs think of Hono", "is Turso production-ready".
domain-model
Grilling session that challenges a plan against the target repo's existing domain model, sharpens terminology, and updates CONTEXT.md + ADRs inline as decisions crystallise. Invoked by /sdlc:plan at step 3.5 to keep architecture aligned with documented language before the plan is drafted.
improve-codebase-architecture
Find deepening opportunities in a codebase, informed by the domain language in CONTEXT.md and the decisions in docs/adr/. Use when the user wants to improve architecture, find refactoring opportunities, consolidate tightly-coupled modules, or make a codebase more testable and AI-navigable.
judgment-eval
Evaluates agent judgment quality through scenario-based testing in-conversation. Use when the user wants to test, validate, or stress-test an agent, skill, or command definition — e.g. "test this agent", "evaluate this skill", "does this prompt handle edge cases", "check this agent's judgment", or after writing or modifying any agent/skill/command .md file.
test
Write or review tests following Kent C. Dodds testing principles - flat structure, composable setup, disposable fixtures. Use when the user asks to write tests, review tests, or convert legacy tests.
system-prompt-clinic
Interactive skill that diagnoses and transforms system prompts from rule-based to reasoning-based using Constitutional AI principles. Use when the user wants to improve, rewrite, or transform any system prompt, command, agent, or skill — e.g. "improve this prompt", "make this less rigid", "transform this rule-based command", "optimize this agent", or "this skill keeps breaking on edge cases".
tdd
TDD enforcement during implementation. Reads `tdd:` setting from CLAUDE.md. Modes - strict (human approval for escape), soft (warnings), off (disabled). Auto-invoked by /implement.
update-models
Re-resolve the model registry by querying OpenAI Codex cache, Google AI API, and Oracle CLI. Use when models feel stale or after a major model release.
finish-branch
Post-merge cleanup workflow. Detects PR merge, switches to main, pulls latest, runs tests, and removes worktree if exists. Use after PR is merged to clean up.
constitution-compliance-review
Evaluate plugin commands, agents, and skills against Anthropic Constitution principles. Score alignment on reasoning-based vs rule-based instruction spectrum, identify improvement opportunities. Use when the user wants to audit, score, or review the quality of a command, agent, or skill — e.g. "review this skill", "audit this command", "is this agent well-written", "score this against constitutional principles", or "check this for rule-based patterns".
agent-change-walkthrough
Generates a narrative walkthrough of AI-authored code changes. Use after implementation to explain what changed, why, and how it behaves.
gemini
Use when the user asks to run Gemini CLI for code review, plan review, or big context (>200k) processing. Ideal for comprehensive analysis requiring large context windows. Resolves the latest flagship model from the model registry.
codex-collaboration
Codex CLI integration for code review and consultation. Use when: (1) code needs review before commit, (2) need expert consultation on implementation approach, (3) debugging assistance needed. This skill provides Codex interaction patterns only - workflow orchestration is defined in project CLAUDE.md.
worktree-manager
Create, manage, and cleanup git worktrees with Claude Code agents across all projects. USE THIS SKILL when user says "create worktree", "spin up worktrees", "new worktree for X", "worktree status", "cleanup worktrees", or wants parallel development branches. Handles worktree creation, dependency installation, validation, agent launching, and global registry management.
jekyll-research-theme
Create production-grade, accessible Jekyll themes for researchers conducting "research in public." Generates complete lab notebook-style themes with Tufte-inspired sidenotes, KaTeX math rendering, and WCAG 2.1 AA compliance. Use when building Jekyll themes for scientific journals, experiment logs, field notes, or research documentation sites. Supports collections for organizing experiments and field notes, responsive sidenote rendering (sidebar on desktop, inline on mobile), and full-width layout options.
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