Skills

B

build-cs-skill

codestable / codestable

CodeStable skill authoring and evolution protocol. Use when creating, refactoring, simplifying, or reviewing cs-* skills under plugins/codestable/skills or .claude/skills. Produces a thin harness, an explicit context plan, evidence gates, and an optional agent collaboration contract. Do not use for product implementation; use eval-cs-skill only for measured experiment loops.

B

building-react-quill-canvases

posthog / skills

Author the React + Quill implementation of a PostHog canvas: the single-component contract, the allowed imports, Quill (PostHog's design system) component and composition rules, theme-aware design tokens, loading skeletons, and the in-canvas date picker. Use after building-canvases has routed a canvas request to a React implementation — dashboards, data boards, forms, tools, or any canvas that should look native to PostHog.

B

building-with-tambo

tambo-ai / tambo

Integrates Tambo into existing React apps — detects tech stack, installs @tambo-ai/react, wires TamboProvider, registers components with Zod schemas, and sets up tools/context. Use when adding AI-powered generative UI to an existing codebase. Triggers on "add Tambo", "integrate Tambo", "add AI chat to my app", "add generative UI", or when the user has an existing React/Next.js/Vite project and wants to add AI-powered components. For brand-new projects, use generative-ui instead.

B

buyer-language-miner

kelpi-ai / meta-ads-skills

Mine reviews, threads, and support messages for the verbatim words buyers use about the problem you solve, organized into pains, triggers, desired outcomes, objections, and alternatives. Use before writing angles or copy; the best hooks are quotes.

Multimodal video understanding: generate descriptions, summaries, and tags for videos, and answer questions based on video content. Trigger when the user wants to understand video content, generate descriptions, or ask questions about a video.

C

calendar

yahyabedirhan / skills

Read the user's calendar without changing it: list events for a date range and check free time, through the Spark CLI or the Google Calendar connector. Creating, changing or answering an event stays with the user. Use when a task needs an event, such as a meeting's time or whether a slot is free, or when this calendar setup needs configuring or checking

C

cco-overhead

egorfedorov / claude-context-optimizer

Audit the fixed context overhead every session starts with — system prompt, MCP tools, agents, CLAUDE.md, memory — measured from real transcript usage

Automatically generates changelogs. Analyzes git commit history, categorizes changes, and turns technical commits into user-friendly release notes. Trigger words: changelog, release notes, version update. Translated from ComposioHQ.

C

check-chokepoint-status

koala73 / worldmonitor

Retrieve live disruption status for the 13 monitored maritime chokepoints (Suez, Hormuz, Malacca, Bab el-Mandeb, Panama, and more). Use when the user asks whether a strait or canal is disrupted, congested, or safe for shipping right now.

C

checking-deploy-timing

posthog / skills

Determine when a PostHog code change reached a given environment by reading the hidden GIT deploy annotations in the project and correlating them with the merge commit on GitHub. Use when PostHog staff ask "when was X deployed", "is my change live in the US/EU yet", "has my PR shipped", "did the fix roll out to prod-us", or otherwise want to know whether/when a commit, PR, or feature went out to a region. Do not answer deploy-timing questions from event/data volume alone — that only shows when data changed, not when code shipped.

C

checklist-generator

oimiragieo / agent-studio

Generate context-aware quality checklists for code review and QA using IEEE 1028 base standards plus LLM contextual additions

C

chen-yiwei-perspective

nigo81 / nigo-skills

Chen Yiwei's (moderator of the Accounting Vision Forum, partner at ZhongShenZhongHuan Certified Public Accountants) professional consulting thinking framework. Distilled from 24 years (2003-2026) and roughly 30 million characters of Q&A articles, covering 5 core mental models, 10 decision heuristics, a complete expression DNA, and a response workflow. For practical interpretation of accounting standards, audit consulting, and financial treatment judgments. Trigger words: 陈版主, 陈奕蔚, 会计准则咨询, 审计实务, 合并报表, 收入确认, 权益性交易, 会计处理, 企业会计准则, CAS 14, CAS 21, CAS 33.

C

choosing-trend-or-slope-view

posthog / skills

Clarify how to visualize change over a time range before building a trend. Use whenever the user asks how much something changed, grew, dropped, improved, or regressed between two points or periods — "how much did X change from A to B", "before vs after", "start vs end", "week over week", "compare this month to last", "change over time" — or mentions a "slope chart" / "slopegraph". Two readings of "change" need different charts: the whole trend (a line, every interval) versus just the two endpoints (a slope, start vs end). Ask which they want, then render it. Not for choosing a saved insight ChartDisplayType in the insight editor.

C

claude-code

duc01226 / easyplatform

[Utilities] Use when you need Claude Code CLI setup, configuration, troubleshooting, and feature guidance.

C

claude-code-mastery

borghei / claude-skills

Use when the user asks to "optimize CLAUDE.md", "create a new skill", "write a custom agent", "configure hooks", "manage context window", "set up MCP servers", "scaffold a skill package", "analyze token budget", "create subagents", "configure permissions", "set up worktrees", or "integrate Claude Code with editors". Covers Claude Code CLI mastery, skill authoring, context engineering, hooks automation, subagent creation, and development workflow optimization.

C

clean

catlog22 / claude-code-workflow

Intelligent code cleanup with mainline detection, stale artifact discovery, and safe execution. Supports targeted cleanup and confirmation.

C

clean-code-zh

jackjin1997 / clawforge

Code review, refactoring and writing according to Robert C. Martin's Clean Code principles. Covers best practices for naming, functions, comments and error handling.

C

clinical-reports

ovachiever / droid-tings

Write comprehensive clinical reports including case reports (CARE guidelines), diagnostic reports (radiology/pathology/lab), clinical trial reports (ICH-E3, SAE, CSR), and patient documentation (SOAP, H&P, discharge summaries). Full support with templates, regulatory compliance (HIPAA, FDA, ICH-GCP), and validation tools.

C

closed-loop-playbook

gtmagents / gtm-agents

Governance system for routing VoC insights to owners and tracking follow-through.

C

code-documentation-generator

dengineproblem / agents-monorepo

Code documentation expert. Use for JSDoc, docstrings, comments, and automated documentation generation.

C

code-quality

piomin / claude-ai-spring-boot

Review checklist for Java / Spring Boot code: correctness, security, performance, Spring signals, REST semantics, and code smells; project rules are referenced from conventions, not repeated. Use when the user says “review code”, “check this PR”, “refactor”, “check API”, or before merging changes.

C

codebase-design

citypaul / .dotfiles

Design and evaluate deep modules: cohesive responsibility behind a small, stable caller-facing contract, with information hiding, justified seams, explicit effects, dependency strategy, and behavior-focused tests. Use when designing or changing an in-process module or package contract, consolidating shallow pass-through modules, deciding what to hide, comparing alternative interfaces, or asking whether code should be combined or split for leverage and locality. For physical layout use structure-codebase; for public compatibility use api-design; for a repository-wide scan use improve-codebase-architecture. For an already-selected whole-path requirement to support a calibrated net-mechanism-reduction claim, use reduce-system-complexity.

C

codex-firebase

mathruffian-dot / codex-lazy-packs

Codex connects to Firebase MCP. Loads when the user says "connect Firebase".

C

codex-second-brain

mathruffian-dot / codex-lazy-packs

Codex second brain three-layer structure setup. Load when the user says "建立第二大腦".

C

codex-token-saver

dff652 / codex-token-saver

Reduce avoidable Codex token and context usage in long-running or repository-scale work by minimizing repeated reads, inefficient polling, context drift, and unnecessary high-capability model use. Apply when users ask to save Codex quota, streamline a long task, or make an agent workflow more context-efficient; do not apply to ordinary short tasks that need no optimization.

C

coding

bout3fiddy / agents

Performance-grounded code implementation, bug fixes, refactors, code reviews, and technical guidance. Covers hard cutovers, instrumentation, data layout, simple state objects, structured comments, and anti-pattern detection.

C

cold-email-weekly-rhythm

growthenginenowoslawski / coldoutboundskills

Operational playbook for running cold email continuously. Prescribes what to do on Monday / Wednesday / Friday / biweekly / monthly / quarterly. Use this as your ongoing cadence once your first campaign is live. What separates hobbyist from top 1% operators isn't tooling — it's consistency. This skill is the schedule.

C

committing-with-commitlint

conventional-changelog / commitlint

Use when writing a git commit message in a repository that uses commitlint — read the enforced convention first, write a compliant message, and self-correct from hook rejections instead of bypassing them

C

company-brainify

garrytan / gbrain

Extract a sanitized shared team/company brain from a personal brain. Strips internal ratings, compensation, performance assessments, retention and political dynamics from pages, takes, and facts across the full scan scope (people, companies, meetings, dailies, cross-references — not just people/), verifies with grep + retrieval passes, and purges sensitive git history behind the data-loss-gate confirmation card. Also runs as a report-only re-audit on an existing shared brain.

When the user wants to create competitor comparison or alternative pages for SEO and sales enablement. Also use when the user mentions 'alternative page,' 'vs page,' 'competitor comparison,' 'comparison page,' '[Product] vs [Product],' '[Product] alternative,' 'competitive landing pages,' 'switch from competitor,' or 'comparison content.' Covers four formats: singular alternative, plural alternatives, you vs competitor, and competitor vs competitor. Emphasizes deep research, modular content architecture, and varied section types beyond feature tables.

C

component-architecture

sanky369 / vibe-building-skills

Audit and refactor a frontend codebase's component structure, or design a component library from scratch, using atomic design, composition, and disciplined prop interfaces. Use when the user says 'my components are a mess', 'this component is 800 lines', 'refactor my components', 'build a component library', 'how should I structure my components', 'too much prop drilling', 'we keep rebuilding the same button', or asks where a new component should live — even if they never say 'atomic design'. Produces a component inventory audit, refactored component code (extracted atoms/molecules, typed prop interfaces, variant systems), and per-component documentation.

C

composing-grid-canvases

posthog / skills

Compose PostHog grid canvases — widget grids (including the user's home canvas) built from reusable component canvases. Use when a task asks to add, fill, move, resize, or remove a widget on a grid or home canvas, to compose a whole canvas of widgets from one ask, to build a reusable widget/component, or when a placement id or grid canvas id is the target. Covers the component store search → configure → fork → build ladder, the component placement contract (size, configSchema), the placement lifecycle (pending/generating/live/failed), the guarded layout patch loop, and reading the canvas's comment threads.

C

composio

composiohq / awesome-claude-skills

Build AI agents and apps with Composio - access 200+ external tools with Tool Router or direct execution

C

concept-explainer

szeyu / vibe-study-skills

ELI5-style explanations with analogies and multiple examples. Explains concepts at different levels (ELI5, high school, undergraduate, graduate). Uses real-world analogies and visual metaphors. Use when explaining difficult concepts, clarifying confusing topics, or learning new subjects. Triggers - explain concept, ELI5, explain like I'm 5, what is, how does, why does, analogy for, simple explanation.

C

condition-based-waiting

nickcrew / claude-cortex

Use when tests have race conditions, timing dependencies, or inconsistent pass/fail behavior - replaces arbitrary timeouts with condition polling to wait for actual state changes, eliminating flaky tests from timing guesses

C

context-manager

phuongnz / skills

Analyze, reduce, and monitor Claude Code session context against a healthy "smart zone" (default 150k tokens, where quality stays high before context rot sets in). Use when the user wants to see how much of the smart zone is loaded at startup and the biggest consumers, decide whether to clean up (/clear vs /compact) or trim what loads every session (MCP servers, skills, memory, CLAUDE.md), pick/configure a status line, or set their own healthy window size. Triggers include "analyze startup context", "why is my context so big", "clean up context", "reduce context usage", "status line template", "configure statusline", "set healthy window", "smart zone size".

C

contract-comparison

zubair-trabzada / ai-legal-claude

Side-by-side comparison of two contract versions or two different contracts with change tracking, favorability analysis, and risk assessment

Integrate Cartridge Controller into React applications using starknet-react. Use when building React/Next.js web apps with Controller, setting up StarknetConfig provider, using hooks like useConnect/useAccount, or implementing wallet connection components. Covers ControllerConnector setup, provider configuration, and transaction execution patterns.

C

copying-endpoints-across-projects

posthog / skills

Copy a PostHog endpoint (a saved HogQL/insight query exposed as an API route) to another project in the same organization, or duplicate it under a new name in the same project. Use when the user wants to duplicate an endpoint, promote an endpoint from staging to production, replicate an endpoint's query/variables/freshness config in another workspace, or clone an endpoint to iterate on it. Unlike feature flags and experiments, endpoints have NO native cross-project copy tool — this skill covers the read-then-recreate flow (endpoint-get then endpoint-create), the active-project switching it requires, name-collision checks, and the safe defaults (land unmaterialised in the target, verify with endpoint-run). Does not cover editing endpoint versions (see managing-endpoint-versions) or authoring a brand-new endpoint from scratch (see creating-an-endpoint).

C

cost-estimator

alirezarezvani / claude-cto-team

Infrastructure and development cost estimation for technical projects. Use when planning budgets, evaluating build vs buy decisions, or projecting TCO for architecture choices.

C

crafting-effective-readmes

joshuadavidthomas / agent-skills

Use when writing or improving README files. Not all READMEs are the same — provides templates and guidance matched to your audience and project type.

C

crap-analysis

wshaddix / dotnet-skills

Analyze code coverage and CRAP (Change Risk Anti-Patterns) scores to identify high-risk code. Use OpenCover format with ReportGenerator for Risk Hotspots showing cyclomatic complexity and untested code paths. Use when evaluating code quality and test coverage before changes, identifying high-risk code that needs refactoring or testing, setting up coverage collection for a .NET project, or establishing coverage thresholds for CI/CD pipelines.

C

create-agent

bolna-ai / skills

Create a Bolna Voice AI agent with the current v2 API, including system prompt, welcome message, LLM, voice, transcriber, telephony input and output, latency tuning, guardrails, knowledge bases, and function tools. Use when the user wants to build, deploy, or clone a Bolna voice agent.

C

create-sound

raphaelsalaja / audio

Generate a SoundDefinition for @web-kits/audio from any input - a natural-language prompt, an audio file the user shares, or both. Use when the user says "create a sound", "/create-sound", "design a sound for X", shares a WAV/MP3/sprite, or asks to reverse-engineer a sample. Optionally renders a WAV preview and round-trip-validates the result.

C

creating-agent-skills

everyinc / compound-engineering-plugin

Expert guidance for creating, writing, and refining Claude Code Skills. Use when working with SKILL.md files, authoring new skills, improving existing skills, or understanding skill structure and best practices.

C

creating-box-plot-insights

posthog / skills

Creates product analytics or SQL-backed box plot insights in PostHog. Use when a user asks to create, build, or save a box plot, visualize a numeric distribution, compare quartiles or medians across dates or groups, or turn SQL results into a box plot. Chooses between a standard Trends box plot and a SQL insight, validates the distribution data, saves the insight, and verifies it.

C

creem

armitage-labs / creem-skills

Integrate Creem payment infrastructure for checkouts, subscriptions, licenses, and webhooks. Supports one-time payments, recurring billing, and MoR compliance.

C

crm-hygiene

gtmagents / gtm-agents

Use to enforce stage definitions, next-step requirements, and data completeness

C

crusty-old-engineer

microsoft / amplifier-bundle-skills

Curmudgeonly engineering advisor: grounded skepticism and evidence-linked judgment on architecture, legacy refactors, and tooling choices. Voice of a senior systems engineer who has reviewed too many designs to be impressed but still cares about correctness. Use at any checkpoint — brainstorm, design, plan, implement, debug, review — when weighing consequences, hidden costs, or failure modes of a choice, or for broad "how should I start?" questions: "what will this cost us later?"

C

csharp-server

clockworklabs / spacetimedb

SpacetimeDB C# server module SDK reference. Use when writing tables, reducers, or module logic in C#.

C

css-i18n

globalize-now / globalize-skills

Audit and convert CSS to use logical properties for RTL/bidirectional layout support. Use when the user asks to "make CSS RTL-safe", "use logical properties", "replace left/right with start/end", "audit CSS for i18n", "CSS internationalization", "fix CSS for RTL", "convert to logical properties", or when setting up any project that targets RTL locales (Arabic, Hebrew, Persian, Urdu). Works with Tailwind, CSS Modules, vanilla CSS, CSS-in-JS, and inline styles. Library-agnostic — works with any i18n setup.

C

custom-skills-plan-analyze

valorvie / ai-dev-skills

Analyze the completeness of a plan, report, or change proposal and its impact assessment on the project. Use when: the user provides a document (plan, technical debt assessment, change proposal, RFC, ADR, security report, etc.) and asks to analyze its quality, completeness, or potential risks. Trigger: /custom-skills-plan-analyze @file path — applies whether the request is made in Chinese or English.

C

custom-skills-threads-research

valorvie / ai-dev-skills

Search and analyze public Threads (threads.net) posts using Playwright MCP + Context Mode MCP. Google Search requires JS rendering, so Playwright handles search; Context Mode handles indexing, compression, and querying to minimize context window consumption. Supports keyword search via Google (site:threads.net), direct user profile browsing, batch multi-keyword research, and structured summarization. Use PROACTIVELY when: user mentions Threads, wants to find Threads posts, asks about threads.net discussions, wants social media research on Threads, asks for 口碑/評價/推薦 from Threads, or mentions any topic where Threads community opinions would be valuable. Also triggers for: "搜尋 Threads", "Threads 上有人說", "threads 口碑", "threads 評價", "threads 討論", "threads 推薦", "找 threads 貼文", "site:threads.net".

C

customer-training-curriculum

dengineproblem / agents-monorepo

Customer training expert. Use for onboarding programs, training materials, and certification paths.

D

dart-async-programming

dart-lang / skills

Handle asynchronous operations safely using Futures and Streams.

D

dart-code-generation

dart-lang / skills

Automate repetitive code tasks using the build_runner system.

D

data-sourcing

gtmagents / gtm-agents

Optimize provider selection, routing, and credit usage across 150+ enrichment sources for company/contact intelligence.

D

data-viz

aladicf / better-react-web-ui

Design charts, metrics, and data tables that help users interpret and compare data. Use when the user asks to visualize data, choose chart types, improve dashboard analytics, or make data presentation accessible. Dashboard navigation and shell layout alone belong to add-ui or arrange.

D

databases

iuliandita / skills

Design schemas, tune queries, migrate, and administer PostgreSQL, MySQL/MariaDB, MongoDB, MSSQL, Redis, and Valkey.

D

dbos-typescript

sickn33 / agentic-awesome-skills

Guide for building reliable, fault-tolerant TypeScript applications with DBOS durable workflows. Use when adding DBOS to existing TypeScript code, creating workflows and steps, or using queues for concurrency control.