pr
You MUST invoke this BEFORE running `gh pr create` or `gh pr edit`, and any time the user expresses intent to ship branch work upstream — explicit ("create PR") or implicit ("push this", "ship it", or you yourself proposing to push after completing work). DO NOT USE for leaving inline review comments on an existing PR.
japanese-writing
Revise Japanese developer-facing technical writing — planning/design docs, meeting materials, issue/PR text, team chat posts — to read plain and accurate: cut overstatement, coined jargon, filler, and blame aimed at people; fix loose paragraphs and notation (spacing around half-width alphanumerics). Use when writing or editing such Japanese prose, including small edits to already-drafted or posted text. Not for English, reference docs, or CLI text.
external-repo
Use whenever you decide you need to inspect a third-party repo's source on disk — explicit (user pastes a repo URL asking about its contents, "how is X implemented in library Y") or implicit (you yourself proposing mid-conversation to fetch an OSS project to investigate). Managed via ghq for direct Read/Grep. DO NOT USE for one-off doc/raw-file lookups (WebFetch) or work inside the user's own repo.
devils-advocate
Examine a direction the user has already settled on from both sides at once, each side argued by an independent agent that sees neither the other nor the assessment forming in this conversation. Use before answering someone who presents a course as decided and asks whether to proceed — whether the answer taking shape is agreement or rejection, and above all when the course is the user's own and agreeing would cost nothing — to surface what it rests on and what would settle it. Not for an option still being floated, where no course has been chosen yet. Reports whichever side holds, including when only one does.
test-perspectives
Use when writing or expanding tests for code with branching conditions, state transitions, input boundaries, or operational failure modes.
speclet-loop
Execute one autonomous iteration - implement the next story from spec.json
speclet-council
Run parallel reviews on draft/spec/ticket inputs and emit Council artifacts
speclet-draft
Generate a collaborative draft document with clarifying questions for a new feature
speclet-ticket
Convert a large draft into individual tickets for isolated implementation sessions
speclet-spec
Convert a draft document into an executable spec.json with trackable stories
speclet-learn
Generate explanatory lessons after completing speclet stories to develop mechanical coding fluency
workbench-quality
Generate and inspect repo-native testing evidence for Workbench quality reports.
workbench-architecture
Architecture workflows for Workbench CLI. Use when documenting system design, tradeoffs, or rationale in canonical architecture artifacts.
workbench-github
GitHub workflows for Workbench CLI. Use when creating pull requests from work items or wiring GitHub-specific actions.
workbench-docs
Documentation workflows for Workbench CLI. Use when creating or updating specs, architecture docs, verification docs, runbooks, guides, or general docs, and when syncing backlinks or change notes.
workbench-work-items
Work item management for Workbench CLI. Use when creating, updating, linking, or closing work items and tracking execution status.
workbench-sync
Sync workflows for Workbench CLI. Use when aligning local work items with GitHub issues, creating branches, or reconciling doc backlinks.
context7-search
Retrieve real-time technical documentation and code snippets from third-party libraries using the Context7 V2 API.
dev-workflow
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project-init
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file-issue
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mcp-toolbox
Use when working with or extending the local Codex MCP toolset/server that exposes HTTP endpoints for shell, filesystem, git, and Excel operations, or when a task should be executed by calling those MCP endpoints instead of local tools, especially if the MCP server is running.
using-lwc
Use when substantive project work, structural code questions, research, planning, debugging, architecture, decisions, document ingest, incident recovery, or verified context and results should survive future sessions; also when the user invokes $using-lwc or asks to search, update, repair, configure, or maintain an LWC Wiki, physical document graph, or CodeGraph index.
opc-legal-cn
面向中国大陆OPC及互联网创业者的中文法律Skill。用于回答OPC概念、适合度、业务模式、主体选择、公司设立、具体税负测算、税务与发票、网站/App/小程序/SaaS/AI上线、客户合同、收款交付、员工外包、责任隔离、融资、暂停和退出问题；一般认知以唯一完整文章为基础，具体办理根据用户城市、业务、主体和阶段调用内部SOP、事件规则、法源、案例、数据库和机器可读JSON Schema。没有完整SOP时必须复核官方来源并说明核验边界。
missing-command-nix
Enforce a Nix-based fallback workflow when shell commands are missing. Use whenever an agent tries to run a command that is unavailable in the current workspace, especially before installing tools or changing the host environment.
nix-darwin-gc-doctor
Diagnose and safely recover nix-darwin garbage collection on macOS. Use when /nix is unexpectedly large, nix-collect-garbage fails or stalls, old system generations or result symlinks retain store paths, macOS-protected app bundles such as Karabiner or Warp block deletion, or administrator prompts need to be consolidated without weakening sudo security.
conventional-commits
Enforce English Conventional Commits for every commit message. Use whenever Codex creates, amends, squashes, rewrites, suggests, reviews, or validates a git commit message, including when the surrounding conversation is in another language.
youtube-transcribe-skill
Extract subtitles/transcripts from a YouTube video URL and save as a local file. Use when you need to extract subtitles from a YouTube video.
developer-growth-analysis
Analyzes your recent Claude Code chat history to identify coding patterns, development gaps, and areas for improvement, curates relevant learning resources from HackerNews, and automatically sends a personalized growth report to your Slack DMs.
content-research-writer
Assists in writing high-quality content by conducting research, adding citations, improving hooks, iterating on outlines, and providing real-time feedback on each section. Transforms your writing process from solo effort to collaborative partnership.
nanobanana-skill
Generate or edit images using Google Gemini API via nanobanana. Use when the user asks to create, generate, edit images with nanobanana, or mentions image generation/editing tasks.
competitive-ads-extractor
Extracts and analyzes competitors' ads from ad libraries (Facebook, LinkedIn, etc.) to understand what messaging, problems, and creative approaches are working. Helps inspire and improve your own ad campaigns.
changelog-generator
Automatically creates user-facing changelogs from git commits by analyzing commit history, categorizing changes, and transforming technical commits into clear, customer-friendly release notes. Turns hours of manual changelog writing into minutes of automated generation.
kiro-skill
Interactive feature development workflow from idea to implementation. Creates requirements (EARS format), design documents, and implementation task lists. Use when creating feature specs, requirements documents, design documents, or implementation plans. Triggered by "kiro" or references to .kiro/specs/ directory.
canvas-design
Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.
brand-guidelines
Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.
artifacts-builder
Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.
algorithmic-art
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.
docx
Comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting preservation, and text extraction. When Claude needs to work with professional documents (.docx files) for: (1) Creating new documents, (2) Modifying or editing content, (3) Working with tracked changes, (4) Adding comments, or any other document tasks
spec-kit-skill
GitHub Spec-Kit integration for constitution-based spec-driven development. 7-phase workflow (constitution, specify, clarify, plan, tasks, analyze, implement). Use when working with spec-kit CLI, .specify/ directories, or creating specifications with constitution-driven development. Triggered by "spec-kit", "speckit", "constitution", "specify", references to .specify/ directory, or spec-kit commands.
domain-name-brainstormer
Generates creative domain name ideas for your project and checks availability across multiple TLDs (.com, .io, .dev, .ai, etc.). Saves hours of brainstorming and manual checking.
xlsx
Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas
pptx
Presentation creation, editing, and analysis. When Claude needs to work with presentations (.pptx files) for: (1) Creating new presentations, (2) Modifying or editing content, (3) Working with layouts, (4) Adding comments or speaker notes, or any other presentation tasks
Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When Claude needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale.
image-enhancer
Improves the quality of images, especially screenshots, by enhancing resolution, sharpness, and clarity. Perfect for preparing images for presentations, documentation, or social media posts.
internal-comms
A set of resources to help me write all kinds of internal communications, using the formats that my company likes to use. Claude should use this skill whenever asked to write some sort of internal communications (status reports, leadership updates, 3P updates, company newsletters, FAQs, incident reports, project updates, etc.).
invoice-organizer
Automatically organizes invoices and receipts for tax preparation by reading messy files, extracting key information, renaming them consistently, and sorting them into logical folders. Turns hours of manual bookkeeping into minutes of automated organization.
lead-research-assistant
Identifies high-quality leads for your product or service by analyzing your business, searching for target companies, and providing actionable contact strategies. Perfect for sales, business development, and marketing professionals.
mcp-builder
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
meeting-insights-analyzer
Analyzes meeting transcripts and recordings to uncover behavioral patterns, communication insights, and actionable feedback. Identifies when you avoid conflict, use filler words, dominate conversations, or miss opportunities to listen. Perfect for professionals seeking to improve their communication and leadership skills.
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