Skills library
A skill is a folder of instructions that Claude loads when the task calls for it. These are the ones worth your time, sorted so you know where to start.
Surveyed on September 28, 2026. 286 public skills, each with its source.
A third-party skill runs with your permissions: read its SKILL.md before you install it. Understand skills in one lesson
To get started
The first ones to install, whatever your job.
- anthropics/skills (repo + marketplace anthropic-agent-skills)Anthropic official
Anthropic's canonical public skills repo: 17 reference skills, the Agent Skills spec, and a skill template; installable as plugin sets via the built-in marketplace.
Why This is the public repository that gathers Anthropic's official skills and serves as the entry point to the built in marketplace, whatever the person's job.
Install
Source : github.com/anthropics/skills/plugin marketplace add anthropics/skills ; then /plugin install document-skills@anthropic-agent-skills or example-skill - document-skills bundle (docx, pdf, pptx, xlsx)Anthropic official
The four production document skills that power Claude's file creation: read/create/edit Word, PDF, PowerPoint and Excel files with proper formatting, tracked changes, formulas and charts.
Why These four skills cover Word, PDF, PowerPoint and Excel, the most common document formats in an office, with correct formatting from the first try.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install document-skills@anthropic-agent-skills - skill-creatorAnthropic official
Anthropic's official skill for writing skills: scaffolds a SKILL.md with correct frontmatter, structure and intention-revealing supporting files; the recommended starting point before authoring anything by hand.
Why This is the official starting point for writing your own skill, with the expected structure and files already in place, which avoids starting from a blank page.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills (also as skill-creator plugin in claude-plugins-official) - doc-coauthoring + internal-comms + algorithmic-art + slack-gif-creatorAnthropic official
The remaining anthropics/skills examples: structured document co-writing, enterprise comms drafting, generative art, and Slack GIF generation, mainly useful as patterns to copy.
Why This bundle of official examples shows how to write a document, an internal communication, or a Slack GIF, needs that almost every job runs into sooner or later.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills - claude-plugins-official (default marketplace)Anthropic official
Anthropic-managed directory auto-available in Claude Code: 26 first-party plugins (feature-dev, hookify, plugin-dev, commit-commands, code-modernization, code-simplifier, claude-md-management, claude-code-setup, mcp-apps, mcp-tunnels, agent-sdk-dev, math-olympiad, playground, learning/explanatory output styles, 8+ LSP language servers) plus 300+ vetted partner plugins (github, linear, playwright, firebase, context7...).
Why This is the marketplace already available in Claude Code, with dozens of plugins vetted by Anthropic and partners, ready to use from day one.
Install
Source : github.com/anthropics/claude-plugins-official/plugin install <name>@claude-plugins-official (marketplace preinstalled; browse via /plugin Discover or claude.com/plug - obra/superpowers (collection)Community collection
The reference agentic-development framework: ~14 process skills (brainstorm, plan, TDD, debug, review, verify) that turn Claude Code into a methodology-driven senior engineer; portable to Cursor, Codex, Copilot CLI, Gemini CLI, OpenCode.
Why This collection turns Claude Code into a methodical collaborator (brainstorming, planning, tests before code, review, verification) and serves as the reference point for the rest of the library.
Install
Source : github.com/obra/superpowers/plugin install superpowers@claude-plugins-official - academy-guideAnthropic official
Recommends matching Claude Academy (academy.claude.com) courses, tutorials, and use cases whenever a user asks how to use Claude or a Claude product, composing with product documentation answers rather than replacing them.
Why This official skill recommends the exact Claude Academy tutorial or course that matches the question asked, which shortens a beginner's learning curve.
Install
Source : github.com/anthropics/skills/tree/main/skills/academy-guide/plugin install academy-guide@anthropic-agent-skills
The essentials for each job
The must-haves, job by job.
Office and documents
- document-skills bundle (docx, pdf, pptx, xlsx)Anthropic official
The four production document skills that power Claude's file creation: read/create/edit Word, PDF, PowerPoint and Excel files with proper formatting, tracked changes, formulas and charts.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install document-skills@anthropic-agent-skills - doc-coauthoringAnthropic official
Structured three-stage workflow (context gathering, refinement, reader testing) for co-authoring docs, proposals, specs, and decision documents.
Install
Source : github.com/anthropics/skills/tree/main/skills/doc-coauthoring/plugin install example-skills@anthropic-agent-skills - avoid-ai-writingCommunity collection
Audit and rewrite content to remove 21 categories of telltale AI writing patterns.
Install
Source : github.com/conorbronsdon/avoid-ai-writinggit clone into ~/.claude/skills - notebooklmCommunity collection
Query and manage Google NotebookLM notebooks with persistent auth, batch queries, and source sync.
Install
Source : github.com/sanjay3290/ai-skills/tree/main/skills/notebooklmcopy skill folder from sanjay3290/ai-skills
Development
- mcp-builderAnthropic official
Guides Claude through designing and generating a working MCP server, the official first-party recipe for wrapping an API as agent tools.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills (sibling plugin mcp-server-dev in claude-plugins-official) - webapp-testingAnthropic official
First-party skill for driving and testing a running web app in a browser, verifying behavior instead of assuming it from code.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills - code-simplifierAnthropic official
Agent that refines code for clarity, consistency, and maintainability without changing behavior.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/code-simplifier/plugin install code-simplifier@claude-plugins-official - test-driven-development (superpowers)Community collection
Enforces the RED-GREEN-REFACTOR cycle for any feature or bugfix, with a reference of testing anti-patterns to avoid.
Install
Source : github.com/obra/superpowers/tree/main/skills/test-driven-development/plugin install superpowers@superpowers-marketplace - systematic-debugging (superpowers)Community collection
4-phase root-cause process for any bug or test failure before proposing fixes, including root-cause tracing, defense-in-depth, and condition-based-waiting techniques.
Install
Source : github.com/obra/superpowers/tree/main/skills/systematic-debugging/plugin install superpowers@superpowers-marketplace
Design, images and media
- frontend-design (skill + first-party plugin)Anthropic official
Anthropic's anti-generic UI skill: aesthetic direction, typography and layout guidance for production-grade interfaces that do not look templated; exists both in anthropics/skills and as a plugin in the official directory.
Install
Source : github.com/anthropics/claude-plugins-official/plugin install frontend-design@claude-plugins-official - canvas-design + theme-factory + brand-guidelinesAnthropic official
Creative trio for visual output: fixed-canvas design (posters, slides), 10 ready-made or generated color/font themes applicable to any artifact, and enforcing a company brand system across deliverables.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills - web-artifacts-builderAnthropic official
Builds elaborate self-contained HTML artifacts (multi-component single-file pages) reliably, the official recipe behind rich claude.ai artifacts.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills - /dataviz (bundled skill, v2.1.198+)Anthropic official
Chart and dashboard design guidance loaded into context: chart-type selection, color-by-role, layout rules, plus a runnable palette validator for colorblind safety and contrast; shipped 2026-07-01.
Install
Source : code.claude.com/docs/en/commandsbuilt-in since Claude Code v2.1.198
Marketing, sales and SEO
- internal-commsAnthropic official
Write internal communications in company formats: 3P updates, status reports, leadership updates, newsletters, FAQs, and incident reports.
Install
Source : github.com/anthropics/skills/tree/main/skills/internal-comms/plugin install example-skills@anthropic-agent-skills - seo-auditMarketplace
From Corey Haines's marketing skills: runs a structured SEO audit of a site covering technical health, on-page factors, and content gaps.
Install
Source : skills.sh/coreyhaines31/marketingskills/seo-auditnpx skills add coreyhaines31/marketingskills/seo-audit (156.3K installs) - copywritingMarketplace
Writes and edits marketing copy (headlines, landing pages, emails) following direct-response copywriting principles.
Install
Source : skills.sh/coreyhaines31/marketingskills/copywritingnpx skills add coreyhaines31/marketingskills/copywriting (146.3K installs) - marketing-psychologyMarketplace
Applies persuasion and behavioral-psychology principles (social proof, loss aversion, framing) to marketing pages and campaigns.
Install
Source : skills.sh/coreyhaines31/marketingskills/marketing-psychologynpx skills add coreyhaines31/marketingskills/marketing-psychology (107.6K installs) - programmatic-seoMarketplace
Plans and scaffolds programmatic SEO: keyword-pattern page templates generated at scale from structured data.
Install
Source : skills.sh/coreyhaines31/marketingskills/programmatic-seonpx skills add coreyhaines31/marketingskills/programmatic-seo (99.0K installs)
Research and analysis
- /deep-research (bundled workflow)Anthropic official
Fans out web searches on a question, fetches and cross-checks sources, and synthesizes a cited report as a background multi-subagent workflow.
Install
Source : code.claude.com/docs/en/commandsbuilt-in bundled workflow - market-research (ECC)Community collection
Source-attributed market and investor research with decision-oriented summaries.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/market-research/plugin install ecc@ecc - paper-searchCommunity collection
Search 250M+ academic works via OpenAlex by keyword or DOI to find and cite papers.
Install
Source : github.com/ykdojo/paper-searchgit clone into ~/.claude/skills - firecrawlMarketplace
Official Firecrawl skill: crawl and scrape websites into clean markdown/structured data via the Firecrawl CLI (companion skills exist for scrape, search, crawl, map).
Install
Source : skills.sh/firecrawl/cli/firecrawlnpx skills add firecrawl/cli/firecrawl (89.5K installs)
Security
- trailofbits/skillsCommunity collection
Professional-grade security skills marketplace from Trail of Bits: 17 skills spanning differential code review, fix verification, Semgrep rule creation, supply-chain risk audit, constant-time/crypto analysis, malware/reverse engineering and smart-contract audit.
Install
Source : github.com/trailofbits/skills/plugin marketplace add trailofbits/skills - security-guidanceAnthropic official
Security review of Claude-generated code: pattern warnings on edits, LLM diff review on Stop, and a commit reviewer covering injection, XSS, SSRF, secrets, and 25+ vulnerability classes.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/security-guidance/plugin install security-guidance@claude-plugins-official - security-review (ECC)Community collection
Security checklist and guidelines for reviewing code changes.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/security-review/plugin install ecc@ecc - owasp-securityCommunity collection
Code review checklists covering OWASP Top 10:2025, ASVS 5.0, and agentic AI security.
Install
Source : github.com/agamm/claude-code-owaspgit clone into ~/.claude/skills
Method, agents and skills
- skill-creatorAnthropic official
Anthropic's official skill for writing skills: scaffolds a SKILL.md with correct frontmatter, structure and intention-revealing supporting files; the recommended starting point before authoring anything by hand.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills (also as skill-creator plugin in claude-plugins-official) - /batch (bundled skill)Anthropic official
Orchestrates large-scale codebase changes: decomposes work into 5-30 independent units, spawns one background subagent per unit in isolated git worktrees, each running tests and opening a PR.
Install
Source : code.claude.com/docs/en/commandsbuilt-in bundled skill - hookify (first-party plugin)Anthropic official
Creates custom hooks to block unwanted Claude behaviors, the official path to enforce automated rules the model itself cannot guarantee.
Install
Source : github.com/anthropics/claude-plugins-official/plugin install hookify@claude-plugins-official - Agent Skills open standard (agentskills.io + spec)Anthropic official
The SKILL.md format published as an open standard: the spec lives in anthropics/skills/spec, and skills written for it run across ~40 adopter clients (Copilot, VS Code, Cursor, Codex, Gemini CLI, Goose...).
Install
Source : github.com/anthropics/skills/blob/main/spec/agent-skills-spec.mdspec + template in the repo; Claude Code extends it with invocation control, subagent exec - obra/superpowers (collection)Community collection
The reference agentic-development framework: ~14 process skills (brainstorm, plan, TDD, debug, review, verify) that turn Claude Code into a methodology-driven senior engineer; portable to Cursor, Codex, Copilot CLI, Gemini CLI, OpenCode.
Install
Source : github.com/obra/superpowers/plugin install superpowers@claude-plugins-official
The ones I use
Installed and used every day by the author of this course.
- SuperpowersMarketplace
Comprehensive workflow system with 20 development techniques (TDD, planning, debugging, worktrees), the single most-downloaded item on claudeskills.info.
Install
Source : claudeskills.info/skills/plugin marketplace add obra/superpowers-marketplace pattern or download from claudeskills.info - docxAnthropic official
Create, read, edit, and manipulate Word documents (.docx), including tracked changes, comments, images, find-and-replace, and polished formatted deliverables like reports and letters.
Install
Source : github.com/anthropics/skills/tree/main/skills/docx/plugin install document-skills@anthropic-agent-skills - xlsxAnthropic official
Open, create, and fix spreadsheets (.xlsx/.xlsm/.csv/.tsv): formulas, formatting, charts, and cleaning messy tabular data, with a zero-formula-error delivery standard.
Install
Source : github.com/anthropics/skills/tree/main/skills/xlsx/plugin install document-skills@anthropic-agent-skills - algorithmic-artAnthropic official
Generate algorithmic and generative art with p5.js (flow fields, particle systems) using seeded randomness and an interactive parameter viewer.
Install
Source : github.com/anthropics/skills/tree/main/skills/algorithmic-art/plugin install example-skills@anthropic-agent-skills - code-reviewAnthropic official
Automated pull-request review using multiple specialized agents with confidence-based scoring of findings.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/code-review/plugin install code-review@claude-plugins-official - security-guidanceAnthropic official
Security review of Claude-generated code: pattern warnings on edits, LLM diff review on Stop, and a commit reviewer covering injection, XSS, SSRF, secrets, and 25+ vulnerability classes.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/security-guidance/plugin install security-guidance@claude-plugins-official - frontend-design (plugin)Anthropic official
Plugin packaging of the frontend-design skill for distinctive UI/UX implementation in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/frontend-design/plugin install frontend-design@claude-plugins-official - continuous-learning (ECC)Community collection
Stop-hook pattern extraction that captures lessons from sessions; v2 adds instinct-based learning with confidence scoring.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/continuous-learning/plugin install ecc@ecc - e2e-testing (ECC)Community collection
Playwright end-to-end testing patterns including the Page Object Model.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/e2e-testing/plugin install ecc@ecc - market-research (ECC)Community collection
Source-attributed market and investor research with decision-oriented summaries.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/market-research/plugin install ecc@ecc - liquid-glass-design (ECC)Community collection
iOS 26 Liquid Glass design system for SwiftUI, UIKit, and WidgetKit interfaces.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/liquid-glass-design/plugin install ecc@ecc - design-taste-frontendMarketplace
Anti-slop frontend skill for landing pages, portfolios, and redesigns: infers the right design direction from the brief and audits before redesigning, with a strict pre-flight check.
Install
Source : skills.sh/leonxlnx/taste-skill/design-taste-frontendnpx skills add leonxlnx/taste-skill/design-taste-frontend (236.3K installs) - high-end-visual-designMarketplace
Defines the exact fonts, spacing, shadows, card structures, and animations of high-end agency work, and blocks the common defaults that make AI designs look generic.
Install
Source : skills.sh/leonxlnx/taste-skill/high-end-visual-designnpx skills add leonxlnx/taste-skill/high-end-visual-design (186.4K installs) - copywritingMarketplace
Writes and edits marketing copy (headlines, landing pages, emails) following direct-response copywriting principles.
Install
Source : skills.sh/coreyhaines31/marketingskills/copywritingnpx skills add coreyhaines31/marketingskills/copywriting (146.3K installs)
High potential
Less known, and able to change the way you work.
- ralph-loopAnthropic official
Run Claude in a continuous self-referential loop on the same prompt (the Ralph Wiggum technique) until the task is complete.
Why It reruns Claude in a loop on the same goal until it is reached, which makes it possible to let a long task run without staying at the screen to relaunch it.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/ralph-loop/plugin install ralph-loop@claude-plugins-official - iterative-retrieval (ECC)Community collection
Progressive context refinement for subagents: retrieve, narrow, and re-query instead of dumping everything into context.
Why It makes a subagent retrieve, narrow, and re query instead of dumping everything into its context, which makes it possible to search a very large corpus without overflowing it in one go.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/iterative-retrieval/plugin install ecc@ecc - cost-aware-llm-pipeline (ECC)Community collection
LLM cost optimization and model-routing patterns for pipelines; content-hash-cache-pattern adds SHA-256 content-hash caching.
Why It routes each call to the cheapest model that suffices and caches by content hash, which makes it possible to run an AI pipeline at scale without the bill exploding.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/cost-aware-llm-pipeline/plugin install ecc@ecc - regex-vs-llm-structured-text (ECC)Community collection
Decision framework for choosing regex versus LLM parsing on structured text.
Why It decides case by case between a regular expression and a model call to extract data from text, which makes it possible to build a faster, cheaper pipeline without losing reliability.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/regex-vs-llm-structured-text/plugin install ecc@ecc - qdrant-skillsCommunity collection
Operate Qdrant vector databases: search operations, performance tuning, deployment, and upgrades.
Why It drives a Qdrant vector database (search, tuning, deployment), which makes it possible to give Claude a persistent semantic memory well beyond its context window.
Install
Source : github.com/qdrant/skillsgit clone into ~/.claude/skills - swarmclawCommunity collection
Drive a self-hosted multi-agent runtime to delegate work across multiple coding CLIs.
Why It drives a self hosted swarm of agents that split work across several coding CLIs, which makes it possible to parallelize a project beyond a single Claude Code session.
Install
Source : github.com/swarmclawai/swarmclaw/blob/main/skills/swarmclaw.mdsee repo; skill file plus runtime - agent-browserMarketplace
Gives the agent a driveable headless browser (navigate, click, fill, screenshot) for testing and inspecting live web pages from the CLI.
Why It gives the agent a drivable headless browser from the command line (navigate, click, fill, screenshot), which makes it possible to test or inspect a live site without a graphical interface.
Install
Source : skills.sh/vercel-labs/agent-browser/agent-browsernpx skills add vercel-labs/agent-browser/agent-browser (526.2K installs) - discernment-nudgeAnthropic official
After a substantive answer or draft the user may act on, appends two to three short follow-up questions tied to specific claims in that answer, to help the user check facts, probe the reasoning, and notice missing context; at most once per conversation.
Why It appends two or three targeted questions after a consequential answer (a plan, an estimate, an email), which makes it possible to catch a fragile assumption before acting on it.
Install
Source : github.com/anthropics/skills/tree/main/skills/discernment-nudge/plugin install discernment-nudge@anthropic-agent-skills
The full catalogue
- anthropics/skills (repo + marketplace anthropic-agent-skills)Anthropic official
Anthropic's canonical public skills repo: 17 reference skills, the Agent Skills spec, and a skill template; installable as plugin sets via the built-in marketplace.
Install
Source : github.com/anthropics/skills/plugin marketplace add anthropics/skills ; then /plugin install document-skills@anthropic-agent-skills or example-skill - document-skills bundle (docx, pdf, pptx, xlsx)Anthropic official
The four production document skills that power Claude's file creation: read/create/edit Word, PDF, PowerPoint and Excel files with proper formatting, tracked changes, formulas and charts.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install document-skills@anthropic-agent-skills - skill-creatorAnthropic official
Anthropic's official skill for writing skills: scaffolds a SKILL.md with correct frontmatter, structure and intention-revealing supporting files; the recommended starting point before authoring anything by hand.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills (also as skill-creator plugin in claude-plugins-official) - mcp-builderAnthropic official
Guides Claude through designing and generating a working MCP server, the official first-party recipe for wrapping an API as agent tools.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills (sibling plugin mcp-server-dev in claude-plugins-official) - frontend-design (skill + first-party plugin)Anthropic official
Anthropic's anti-generic UI skill: aesthetic direction, typography and layout guidance for production-grade interfaces that do not look templated; exists both in anthropics/skills and as a plugin in the official directory.
Install
Source : github.com/anthropics/claude-plugins-official/plugin install frontend-design@claude-plugins-official - webapp-testingAnthropic official
First-party skill for driving and testing a running web app in a browser, verifying behavior instead of assuming it from code.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills - canvas-design + theme-factory + brand-guidelinesAnthropic official
Creative trio for visual output: fixed-canvas design (posters, slides), 10 ready-made or generated color/font themes applicable to any artifact, and enforcing a company brand system across deliverables.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills - web-artifacts-builderAnthropic official
Builds elaborate self-contained HTML artifacts (multi-component single-file pages) reliably, the official recipe behind rich claude.ai artifacts.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills - claude-api (repo skill and bundled /claude-api)Anthropic official
Loads current Claude API reference (model IDs, tool use, streaming, batches, structured outputs) per language, auto-activates when code imports the anthropic SDK, and /claude-api migrate upgrades code to newer models.
Install
Source : code.claude.com/docs/en/commandsbundled in Claude Code (auto); also in anthropics/skills - doc-coauthoring + internal-comms + algorithmic-art + slack-gif-creatorAnthropic official
The remaining anthropics/skills examples: structured document co-writing, enterprise comms drafting, generative art, and Slack GIF generation, mainly useful as patterns to copy.
Install
Source : github.com/anthropics/skills/tree/main/skills/plugin install example-skills@anthropic-agent-skills - /dataviz (bundled skill, v2.1.198+)Anthropic official
Chart and dashboard design guidance loaded into context: chart-type selection, color-by-role, layout rules, plus a runnable palette validator for colorblind safety and contrast; shipped 2026-07-01.
Install
Source : code.claude.com/docs/en/commandsbuilt-in since Claude Code v2.1.198 - /code-review + /simplify + ultraAnthropic official
Bundled multi-agent diff review at chosen effort level (low to max, plus cloud 'ultra'), with --fix and --comment; /simplify runs the cleanup-only sibling that applies reuse/simplification fixes without bug hunting.
Install
Source : code.claude.com/docs/en/commandsbuilt-in (bundled skill); ultra needs Pro/Max or credits - /batch (bundled skill)Anthropic official
Orchestrates large-scale codebase changes: decomposes work into 5-30 independent units, spawns one background subagent per unit in isolated git worktrees, each running tests and opening a PR.
Install
Source : code.claude.com/docs/en/commandsbuilt-in bundled skill - /run + /verify + /run-skill-generator (v2.1.145+)Anthropic official
Trio that launches the actual app and observes behavior instead of trusting tests; run-skill-generator records the project's launch recipe as a per-project skill at .claude/skills/run-<name>/ so all agents reuse it.
Install
Source : code.claude.com/docs/en/skillsbuilt-in since v2.1.145 - /deep-research (bundled workflow)Anthropic official
Fans out web searches on a question, fetches and cross-checks sources, and synthesizes a cited report as a background multi-subagent workflow.
Install
Source : code.claude.com/docs/en/commandsbuilt-in bundled workflow - /loop + /scheduleAnthropic official
Recurrence primitives: /loop reruns a prompt on an interval (or self-paced autonomous maintenance from .claude/loop.md) while the session is open; /schedule creates cloud routines on Anthropic infrastructure.
Install
Source : code.claude.com/docs/en/commandsbuilt-in bundled skills - /design-sync (bundled skill)Anthropic official
Converts your repo's React design system and uploads it to Claude Design so generated designs use your real components; first sync verifies every component.
Install
Source : code.claude.com/docs/en/commandsbuilt-in; requires Anthropic API (unavailable on Bedrock/Vertex/Foundry) - /debug + /fewer-permission-promptsAnthropic official
Session hygiene skills: /debug turns on debug logging and diagnoses issues from the session log; /fewer-permission-prompts mines your transcripts to build a read-only allowlist in settings.json.
Install
Source : code.claude.com/docs/en/commandsbuilt-in bundled skills - claude-plugins-official (default marketplace)Anthropic official
Anthropic-managed directory auto-available in Claude Code: 26 first-party plugins (feature-dev, hookify, plugin-dev, commit-commands, code-modernization, code-simplifier, claude-md-management, claude-code-setup, mcp-apps, mcp-tunnels, agent-sdk-dev, math-olympiad, playground, learning/explanatory output styles, 8+ LSP language servers) plus 300+ vetted partner plugins (github, linear, playwright, firebase, context7...).
Install
Source : github.com/anthropics/claude-plugins-official/plugin install <name>@claude-plugins-official (marketplace preinstalled; browse via /plugin Discover or claude.com/plug - hookify (first-party plugin)Anthropic official
Creates custom hooks to block unwanted Claude behaviors, the official path to enforce automated rules the model itself cannot guarantee.
Install
Source : github.com/anthropics/claude-plugins-official/plugin install hookify@claude-plugins-official - feature-dev + commit-commands + plugin-dev (first-party plugins)Anthropic official
Anthropic's dev-workflow set: end-to-end feature development workflow, git commit commands, and a toolkit for building Claude Code plugins themselves.
Install
Source : github.com/anthropics/claude-plugins-official/plugin install feature-dev@claude-plugins-official (etc.) - anthropics/knowledge-work-pluginsAnthropic official
11 open-source Apache-2.0 plugins for non-engineering roles (productivity, sales, support, product management, marketing, legal, finance, data, enterprise search, bio research, plugin management), Anthropic's official business-workflow starting points, shared with Cowork.
Install
Source : github.com/anthropics/knowledge-work-pluginsclaude plugin marketplace add anthropics/knowledge-work-plugins ; claude plugin install sales@knowledge-work-plugins - Agent Skills open standard (agentskills.io + spec)Anthropic official
The SKILL.md format published as an open standard: the spec lives in anthropics/skills/spec, and skills written for it run across ~40 adopter clients (Copilot, VS Code, Cursor, Codex, Gemini CLI, Goose...).
Install
Source : github.com/anthropics/skills/blob/main/spec/agent-skills-spec.mdspec + template in the repo; Claude Code extends it with invocation control, subagent exec - obra/superpowers (collection)Community collection
The reference agentic-development framework: ~14 process skills (brainstorm, plan, TDD, debug, review, verify) that turn Claude Code into a methodology-driven senior engineer; portable to Cursor, Codex, Copilot CLI, Gemini CLI, OpenCode.
Install
Source : github.com/obra/superpowers/plugin install superpowers@claude-plugins-official - superpowers:test-driven-developmentCommunity collection
Enforces RED-GREEN-REFACTOR before any implementation code, with an anti-patterns reference; the single most-cited skill in the collection.
Install
Source : github.com/obra/superpowersincluded in superpowers plugin - superpowers:systematic-debuggingCommunity collection
Four-phase root-cause analysis to run on any bug or test failure before proposing a fix, killing guess-and-patch loops.
Install
Source : github.com/obra/superpowersincluded in superpowers plugin - superpowers:brainstormingCommunity collection
Socratic requirements/design refinement gate that runs before any creative or feature work starts.
Install
Source : github.com/obra/superpowersincluded in superpowers plugin - superpowers:writing-plans + executing-plansCommunity collection
Pair that converts a spec into a detailed implementation plan then executes it in batches with review checkpoints, optionally in a separate session.
Install
Source : github.com/obra/superpowersincluded in superpowers plugin - superpowers:subagent-driven-developmentCommunity collection
Runs independent plan tasks through parallel subagents with two-stage review; 2026 releases cut execution time sharply by replacing subagent review loops with inline self-review.
Install
Source : github.com/obra/superpowersincluded in superpowers plugin - superpowers:verification-before-completionCommunity collection
Blocks 'done/fixed/passing' claims until verification commands have actually been run and their output confirmed: evidence before assertions.
Install
Source : github.com/obra/superpowersincluded in superpowers plugin - superpowers:writing-skillsCommunity collection
Meta-skill for authoring new SKILL.md files to the framework's conventions; the standard way to grow a personal skill library cleanly.
Install
Source : github.com/obra/superpowersincluded in superpowers plugin - obra/superpowers-labCommunity collection
Companion repo of experimental, not-yet-graduated Superpowers skills and techniques; worth watching for what lands in the main framework next.
Install
Source : github.com/obra/superpowers-labgit clone (experimental, not in marketplace) - affaan-m/ECC (Everything Claude Code)Community collection
The biggest agent-harness collection: 278 skills, 67 agents, 15+ hook events, security scanning (AgentShield, 102 static rules) and memory persistence across Claude Code, Cursor, Codex, OpenCode, Zed; flagship skills are continuous-learning-v2 (instinct extraction with confidence scoring), security-scan, eval-harness, e2e-testing, content-engine.
Install
Source : github.com/affaan-m/ECC/plugin install ecc@ecc (then copy rules/ to ~/.claude/rules/ecc/) - anthropics/skills (official)Community collection
Anthropic's official skill repo and Agent Skills spec home: the canonical document skills (docx, pdf, pptx, xlsx), artifacts-builder, mcp-builder, canvas-design, frontend-design, plus the /template and /spec folders that define the format.
Install
Source : github.com/anthropics/skills/plugin marketplace add anthropics/skills, then /plugin install document-skills@anthropic-agent-skills - forrestchang / multica-ai andrej-karpathy-skillsCommunity collection
One CLAUDE.md distilling Karpathy's Jan-2026 complaints about LLM coding into four behavioural rules (no silent assumptions, no over-engineering, no orthogonal changes, explicit verification); fastest-growing skill repo of 2026.
Install
Source : github.com/multica-ai/andrej-karpathy-skillscopy CLAUDE.md / SKILL.md into ~/.claude (also packaged for Codex, Cursor, Gemini, Aider) - Donchitos/Claude-Code-Game-StudiosCommunity collection
Turns Claude Code into a full game studio: 49 agents in a director/lead/specialist hierarchy, 73 workflow skills (/start to /launch-checklist), 12 hooks, 41 templates, with dedicated agent sets for Godot 4, Unity (DOTS/ECS) and Unreal 5 (GAS).
Install
Source : github.com/Donchitos/Claude-Code-Game-Studiosgit clone then run /start inside claude - freshtechbro/claudedesignskillsCommunity collection
22 web-design skills specialized in 3D graphics and animation (Three.js, R3F, GSAP, Babylon.js, PixiJS, Rive, Spline, Lottie) with 50+ boilerplate slash commands and 27 agents; the best dedicated 3D/motion web design pack.
Install
Source : github.com/freshtechbro/claudedesignskills/plugin marketplace add freshtechbro/claudedesignskills then /plugin install threejs-webgl (modular per-skill installs) - AgriciDaniel/claude-seoCommunity collection
The most complete SEO skill: 25 sub-skills + 18 agents covering technical SEO, E-E-A-T, schema JSON-LD, GEO/AEO passage citability, local/maps, e-commerce and hreflang, with optional DataForSEO/Ahrefs/Firecrawl MCP extensions and a 'how would we know this failed?' check on every recommendation.
Install
Source : github.com/AgriciDaniel/claude-seo/plugin marketplace add AgriciDaniel/claude-seo then /plugin install claude-seo@agricidaniel-claude-seo - seranking/seo-skillsCommunity collection
Production SEO skills built on the SE Ranking MCP server (content briefs, AI Search share of voice, audits, backlink gaps, keyword clusters, schema, sitemap, GEO); every API call documented so it adapts to other data providers.
Install
Source : github.com/seranking/seo-skillsgit clone + SE Ranking MCP server - Hainrixz/claude-seo-aiCommunity collection
SEO + AI-search (GEO/AEO) toolkit with a two-score audit (classic SEO vs LLM citability) and an opt-in fixer, explicitly designed for the 2026-2027 answer-engine landscape.
Install
Source : github.com/Hainrixz/claude-seo-aigit clone / marketplace add - AgriciDaniel/claude-blogCommunity collection
Companion blog-writing suite: 30 sub-skills, 5 agents and a 5-gate Blog Delivery Contract, dual-optimized for Google rankings and AI citations.
Install
Source : github.com/AgriciDaniel/claude-blog/plugin marketplace add AgriciDaniel/claude-blog - trailofbits/skillsCommunity collection
Professional-grade security skills marketplace from Trail of Bits: 17 skills spanning differential code review, fix verification, Semgrep rule creation, supply-chain risk audit, constant-time/crypto analysis, malware/reverse engineering and smart-contract audit.
Install
Source : github.com/trailofbits/skills/plugin marketplace add trailofbits/skills - travisvn/awesome-claude-skillsCommunity collection
The main curated awesome list of the ecosystem: indexes official document skills, design/creative skills, superpowers, Trail of Bits and community collections; best starting map for discovery.
Install
Source : github.com/travisvn/awesome-claude-skillsn/a (index; links out per skill) - Samarth0211/awesome-claude-skills-2026Community collection
Index of 2,300+ skills, 10 autonomous agents and 100 prompt shortcuts with a browsable front-end at clskills.in; useful as a searchable catalog rather than a vetted list.
Install
Source : github.com/Samarth0211/awesome-claude-skills-2026n/a (index) - alirezarezvani/claude-skillsCommunity collection
345 skills + 30 agents + 70 commands spanning engineering but also marketing, product, compliance, C-level advisory, finance and daily productivity; portable to Codex, Gemini CLI, Cursor and 8 other agents; the best non-engineering business coverage.
Install
Source : github.com/alirezarezvani/claude-skillsgit clone / marketplace add alirezarezvani/claude-skills - rohitg00/awesome-claude-code-toolkitCommunity collection
Mega-toolkit combining 135 agents, 176+ plugins, 35 curated skills, 42 commands, 20 hooks and 14 MCP configs, plus a gateway to the SkillKit marketplace; featured pro-workflow plugin does self-correcting memory and parallel git worktrees.
Install
Source : github.com/rohitg00/awesome-claude-code-toolkit/plugin marketplace add rohitg00/awesome-claude-code-toolkit - netresearch/claude-code-marketplaceCommunity collection
Curated Agent Skills collection built on the agentskills.io open standard, portable across Claude Code, Cursor, Copilot, Codex, Gemini CLI and 30+ agents; the reference for standards-compliant, cross-agent skills.
Install
Source : github.com/netresearch/claude-code-marketplace/plugin marketplace add netresearch/claude-code-marketplace - SkillsMP (skillsmp.com)Marketplace
Largest raw index of the ecosystem: 2,000,000+ open-source SKILL.md files scraped from public GitHub (2+ stars filter), browsable by 12 domains / 50+ categories, with a free REST API and an MCP server endpoint so Claude Code can query it directly; discovery map only, zero curation, every skill needs your own audit before install.
Install
Source : skillsmp.comBrowse or query the free REST API / MCP endpoint, then copy the SKILL.md into ~/.claude/sk - skills.sh (Vercel Labs Agent Skills Directory)Marketplace
Vercel-backed cross-platform registry (Claude Code, Cursor, Copilot, Codex) with 918,396 skills, ranked by 8-week activity and real install counts, plus an Official curated section and per-skill security audit transparency; currently the best install-count signal in the ecosystem.
Install
Source : skills.shnpx skills add <owner/repo> - claudeskills.info (Claude Skills Hub)Marketplace
Mid-size curated catalog: 12,868 skills of which 2,643 are official (Anthropic, Microsoft, Google, OpenAI) and 10,225 community, all free, standardized SKILL.md format working across 14+ platforms; good middle ground between raw scrape and hand-picked list.
Install
Source : claudeskills.info/skillsDirect ZIP download per skill or copy SKILL.md into ~/.claude/skills; /best page keeps upd - claudemarketplaces.com (now crossaitools.com)Marketplace
Directory of marketplaces rather than skills: auto-crawls GitHub daily for repos containing .claude-plugin/marketplace.json and lists 2,500+ marketplace registries plus 21,700+ skills and 12,500+ MCP servers; the place to find which registries exist before subscribing via /plugin marketplace add.
Install
Source : crossaitools.com/marketplacesPick a marketplace, then /plugin marketplace add owner/repo in Claude Code; site itself is browse-only. Note the 301 red - ClawHub (OpenClaw skill registry)Marketplace
The npm-style versioned registry for OpenClaw agents: publish, version, vector-search SKILL.md packages; ~13,700 skills mid-2026 (up from ~6,500 in January); post-security-crisis it added automated scanning, author verification badges and code signing after removing 1,467 malicious skills, so meaningfully safer but not immune.
Install
Source : github.com/openclaw/clawhubnpm i -g clawhub puis clawhub install <skill-slug>, ou openclaw skills install (--global pour ~/.openclaw/skills); certa - anthropics/claude-plugins-officialMarketplace
Anthropic's own curated plugin directory, the highest-trust source: /plugins maintained internally plus /external_plugins from vetted partners meeting quality and security standards via a submission form; caveat in the README itself that Anthropic does not control bundled MCP servers, so trust-check anyway.
Install
Source : github.com/anthropics/claude-plugins-official/plugin install <name>@claude-plugins-official, or /plugin > Discover tab (marketplace preinstalled in Claude Code, auto - anthropics/claude-plugins-communityMarketplace
Anthropic-run companion marketplace hosting third-party plugins that passed automated validation and safety screening; lighter bar than the official directory but still a screened channel, and its plugins appear in the Discover tab alongside official ones.
Install
Source : github.com/anthropics/claude-plugins-official/plugin marketplace add anthropics/claude-plugins-community puis /plugin install; seen referenced in docs and search res - Agensi (agensi.io)Marketplace
Small hand-curated marketplace (~200+ skills) that runs an 8-point security scan on every listing and pays creators a 70/30 revenue split; the anti-SkillsMP: tiny catalog, high floor; also publishes the best neutral guides on the marketplace landscape.
Install
Source : www.agensi.io/learn/best-ai-agent-skills-marketplaces-2026curl one-liner per skill - LobeHub skills indexMarketplace
Aggregated/scraped index of 169,000+ skills with a polished web UI, oriented to the LobeHub agent ecosystem rather than Claude Code specifically; useful as a second large search surface when SkillsMP misses.
Install
Source : www.agensi.io/learn/best-ai-agent-skills-marketplaces-2026Web UI browse then manual copy; no Claude Code native installer (seen in Agensi comparison - Awesome Claude Skills (awesomeclaude.ai)Marketplace
Classic awesome-list, 169 hand-curated skills across 13 categories maintained by @BehiSecc, last updated 2026-06-13; the highest signal-to-noise browse if you want quality over volume, including 125+ bioinformatics skills and 65 full-stack framework skills as bundles.
Install
Source : awesomeclaude.ai/awesome-claude-skillsDrop SKILL.md in ~/.claude/skills (personal) or .claude/skills (project), or install the b - agentskill.shMarketplace
Marketplace referenced as a key collection inside the Awesome Claude Skills directory with 69,000+ skills; mid-tier between curated lists and the mega-scrapes.
Install
Source : awesomeclaude.ai/awesome-claude-skillsVia its site; seen only as a cited collection, not fetched directly - Agent AlmanacMarketplace
Curated bundle of 317 skills across 50+ domains, cited as a key collection by Awesome Claude Skills; a portable one-repo alternative to subscribing to a marketplace.
Install
Source : awesomeclaude.ai/awesome-claude-skillsClone the repo and copy wanted skills; seen only as a cited collection - MCP Market skills directoryMarketplace
Submission-based directory (~500 skills) attached to the larger MCP Market, emphasizing skills that pair with MCP servers (scraping, databases, cloud APIs); site rate-limited my fetch (HTTP 429) so figures are from Agensi's April 2026 comparison.
Install
Source : mcpmarket.com/tools/skillsBrowse and manual copy; submission-based listing - ClaudePluginHub (claudepluginhub.com)Marketplace
Browsable directory of Claude Code plugin marketplaces, an alternative front-end to the same GitHub marketplace.json crawl claudemarketplaces.com does; seen in search results only, worth a look as a cross-check.
Install
Source : www.claudepluginhub.com/marketplacesBrowse, then /plugin marketplace add owner/repo - daymade/claude-code-skillsMarketplace
Self-styled professional Claude Code skills marketplace on GitHub with production-ready skills for dev workflows; representative of the single-owner marketplace repos that /plugin marketplace add subscribes to directly.
Install
Source : github.com/daymade/claude-code-skills/plugin marketplace add daymade/claude-code-skills then /plugin install (seen in search results, not fetched) - xiaolai/claude-plugin-marketplaceMarketplace
Central personal marketplace repo by xiaolai, another example of the per-owner registry pattern the /plugin system encourages; quality is whatever the owner maintains, per the general warning that per-owner marketplaces range from excellent to abandoned.
Install
Source : github.com/xiaolai/claude-plugin-marketplace/plugin marketplace add xiaolai/claude-plugin-marketplace (seen in search results, not fetched) - FindSkills (findskills.org)Marketplace
Cross-agent skill directory covering Claude, OpenClaw and GitHub agents; seen in search results only, one more discovery surface for the multi-runtime SKILL.md format.
Install
Source : www.findskills.org/directoryBrowse then manual copy (not fetched directly) - Everything Claude Code (affaan-m/ECC)Marketplace
86+ skills, rules, hooks and agent configs in one collection, a top-3 trending item on claudeskills.info.
Install
Source : claudeskills.info/skillsListed on claudeskills.info (225.2K downloads); upstream is the affaan-m/ECC GitHub repo - SuperpowersMarketplace
Comprehensive workflow system with 20 development techniques (TDD, planning, debugging, worktrees), the single most-downloaded item on claudeskills.info.
Install
Source : claudeskills.info/skills/plugin marketplace add obra/superpowers-marketplace pattern or download from claudeskills.info - Snyk agent-scan (ex Invariant Labs mcp-scan)Community collection
Reference open-source scanner for installed MCP servers and Claude skills: detects 15+ risks (prompt injection, tool poisoning/shadowing, rug pulls via tool-hash pinning, malware payloads, hardcoded secrets, toxic flows); skills are scanned by default, legacy invocation was 'uvx mcp-scan@latest --skills'.
Install
Source : github.com/snyk/agent-scanuvx snyk-agent-scan@latest (or point it at ~/.claude/skills); legacy: uvx mcp-scan@latest - Snyk Agent Scan Skill Inspector (web)Community collection
Paste a skill URL into a browser tool to get Snyk's LLM-judge plus deterministic-rule verdict BEFORE installing anything locally; same engine that scans skills.sh submissions at install time.
Install
Source : snyk.io/blog/snyk-vercel-securing-agent-skill-ecosystemnone, web tool at labs.snyk.io - NVIDIA SkillSpectorCommunity collection
The heavyweight open-source skill scanner: 68 vulnerability patterns across 17 categories (prompt injection, anti-refusal, exfiltration, privilege escalation), YARA malware signatures, live CVE lookups via OSV.dev, AST analysis, optional LLM semantic pass, SARIF/JSON output, can run as an MCP server; scans local dirs, git URLs, or zips.
Install
Source : github.com/nvidia/skillspectoruv tool install git+https://github.com/NVIDIA/skillspector.git (Docker also supported) - NVIDIA Verified Agent Skills + Skill CardsCommunity collection
Governance layer shipped 2026-05-22: machine-readable YAML/JSON Skill Cards (builder identity, API dependencies, scan results) plus cryptographic signing of the whole skill directory via the OpenSSF Model Signing standard, verifiable with NVIDIA's root certificate; catalog still sparse (cuOpt first).
Install
Source : byteiota.com/nvidia-verified-agent-skills-skillspector-and-skill-cards-2026npx commands per skill; verify signature with NVIDIA root cert + one command - Clawdex (Koi Security)Community collection
Pre-installation and retroactive scanner from the team that uncovered ClawHavoc: checks a skill against Koi's malicious-skill database before install and sweeps already-installed skills for known-bad matches.
Install
Source : www.paloaltonetworks.com/cortex/agentic-endpoint-securityskill on ClawHub marketplace or via clawdex.koi.security - SkillShieldCommunity collection
Instruction-layer scanner: analyzes the natural-language SKILL.md directions (intent, permission scope vs need, persistent behavior modification, exfiltration vectors) rather than only code, claiming about 2.4x more threats caught than static analysis alone; complementary to mcp-scan.
Install
Source : skillshield.dev/blog/toxicskills-snyk-research-openclaw-usersnpx skillshield scan <skill URL> - SkillFortify (qualixar)Community collection
Formal-verification-flavored scanner with SBOM generation and supply chain checks (unauthorized capability access, dependency conflicts, trust scores) across 22 agent frameworks including Claude Code Skills, MCP, LangChain, CrewAI.
Install
Source : github.com/qualixar/skillfortifypip install skillfortify - skillscan-security (kurtpayne)Community collection
Independent scanner for skills and MCP tool bundles combining prompt-injection detection, IOC matching, malware detection, and an ML classifier; useful as a second engine in a multi-scanner pipeline (seen in search listing only, not fetched in depth).
Install
Source : github.com/kurtpayne/skillscan-securitygit clone https://github.com/kurtpayne/skillscan-security - toxicskills-goof (snyk-labs)Community collection
Deliberately malicious skill corpus from the ToxicSkills study: use it in quarantine to benchmark whether your own vetting pipeline actually catches real payload patterns before trusting it.
Install
Source : github.com/snyk-labs/toxicskills-goofgit clone into an isolated sandbox only, never install as skills - OWASP Agentic Skills Top 10Community collection
Emerging taxonomy of skill-specific risks (AST01 Malicious Skills is critical severity) with per-platform checklists for Claude Code, OpenClaw, Cursor, VS Code and mitigations (ed25519 signing, behavioral scanning, sandboxed execution, audit logging); incubator status, last updated March 2026.
Install
Source : owasp.github.io/www-project-agentic-skills-top-10/ast01reference document, nothing to install - SkillDetonate (HKUST research)Community collection
Dynamic detonation auditor from the July 2026 'Cloak and Detonate' paper: runs a suspect skill in an instrumented sandbox and watches runtime behavior, detecting 97% of SkillCloak-obfuscated attacks at 2% false positives where every static scanner tested was largely blind.
Install
Source : thehackernews.com/2026/07/new-skillcloak-technique-lets-malicious.htmlresearch artifact accompanying the paper - SkillVetBenchCommunity collection
Benchmark for skill-vetting pipelines: stage one does semantic vetting of the SKILL.md specification for hidden malicious intent, stage two executes flagged skills in an instrumented sandbox; use it to compare scanner quality claims.
Install
Source : arxiv.org/pdf/2606.00925arXiv paper + artifacts - SkillSieveCommunity collection
Hierarchical triage framework (research) for detecting malicious AI agent skills at marketplace scale, a cheap-first/expensive-later pipeline design worth copying if you vet many skills.
Install
Source : arxiv.org/html/2604.06550v1arXiv paper - Anthropic security-guidance pluginCommunity collection
Official free plugin that autonomously reviews code edits, model outputs, and commits in real time for vulnerabilities (Anthropic reports 30-40% fewer security comments on PRs); code security rather than skill vetting, but part of the same hardening wave.
Install
Source : www.securityweek.com/anthropic-releases-new-claude-sandbox-security-guidance-plugininstall from the official Claude Code plugin marketplace - Anthropic self-hosted sandbox (public beta)Community collection
Moves agent tool execution into user-controlled infrastructure (own infra or Cloudflare, Daytona, Modal, Vercel), announced at Code w/ Claude London May 2026: the isolation layer that makes running unvetted skills survivable.
Install
Source : www.securityweek.com/anthropic-releases-new-claude-sandbox-security-guidance-pluginpublic beta, configured per Anthropic docs - CSA Agentic MCP Security Best PracticesCommunity collection
Cloud Security Alliance governance guide for MCP and agent-skill deployments: policy-level companion to the hands-on scanners for anyone formalizing a vetting process.
Install
Source : labs.cloudsecurityalliance.org/agentic/agentic-mcp-security-best-practices-v1reference document - Antiy CERT ClawHavoc IOC setCommunity collection
Retro-hunting material for the ClawHavoc campaign: 14 malicious file hashes, 5 C2 IPs (incl. 91.92.242.30), domains (socifiapp.com), and the 12 attacker author IDs; sweep any skills installed January-February 2026 against it.
Install
Source : www.antiy.net/p/clawhavoc-analysis-of-large-scale-poisoning-campaign-targeting-the-openclaw-skill-market-for-ai-agentsIOCs in the Antiy report - Snyk Evo + AI-BOMCommunity collection
Commercial continuous agent-security orchestration plus an AI bill-of-materials inventory: the enterprise tier above the free agent-scan for teams running many agents and skills.
Install
Source : snyk.io/blog/toxicskills-malicious-ai-agent-skills-clawhubcommercial, via Snyk - docxAnthropic official
Create, read, edit, and manipulate Word documents (.docx), including tracked changes, comments, images, find-and-replace, and polished formatted deliverables like reports and letters.
Install
Source : github.com/anthropics/skills/tree/main/skills/docx/plugin install document-skills@anthropic-agent-skills - pdfAnthropic official
Full PDF toolbox: extract text and tables, merge/split, rotate, watermark, fill forms, encrypt/decrypt, extract images, and OCR scanned PDFs.
Install
Source : github.com/anthropics/skills/tree/main/skills/pdf/plugin install document-skills@anthropic-agent-skills - pptxAnthropic official
Create, read, and edit PowerPoint decks: build presentations from scratch or templates, extract slide text, and work with layouts, speaker notes, and comments.
Install
Source : github.com/anthropics/skills/tree/main/skills/pptx/plugin install document-skills@anthropic-agent-skills - xlsxAnthropic official
Open, create, and fix spreadsheets (.xlsx/.xlsm/.csv/.tsv): formulas, formatting, charts, and cleaning messy tabular data, with a zero-formula-error delivery standard.
Install
Source : github.com/anthropics/skills/tree/main/skills/xlsx/plugin install document-skills@anthropic-agent-skills - claude-apiAnthropic official
Reference for building on the Claude API and Anthropic SDK: model IDs, pricing, streaming, tool use, MCP, caching, token counting, and model migration.
Install
Source : github.com/anthropics/skills/tree/main/skills/claude-api/plugin install example-skills@anthropic-agent-skills - frontend-designAnthropic official
Design direction for distinctive, non-templated UI: deliberate palette, typography, and layout choices grounded in the subject of the brief.
Install
Source : github.com/anthropics/skills/tree/main/skills/frontend-design/plugin install example-skills@anthropic-agent-skills - canvas-designAnthropic official
Create original static visual art and posters as .png or .pdf by first writing a design philosophy, then expressing it on canvas.
Install
Source : github.com/anthropics/skills/tree/main/skills/canvas-design/plugin install example-skills@anthropic-agent-skills - algorithmic-artAnthropic official
Generate algorithmic and generative art with p5.js (flow fields, particle systems) using seeded randomness and an interactive parameter viewer.
Install
Source : github.com/anthropics/skills/tree/main/skills/algorithmic-art/plugin install example-skills@anthropic-agent-skills - theme-factoryAnthropic official
Apply one of 10 preset color/font themes (or generate a new one) to any artifact: slides, docs, reports, or landing pages.
Install
Source : github.com/anthropics/skills/tree/main/skills/theme-factory/plugin install example-skills@anthropic-agent-skills - brand-guidelinesAnthropic official
Apply Anthropic's official brand colors and typography to artifacts; a template for encoding any company's visual identity as a skill.
Install
Source : github.com/anthropics/skills/tree/main/skills/brand-guidelines/plugin install example-skills@anthropic-agent-skills - slack-gif-creatorAnthropic official
Create animated GIFs sized and optimized for Slack (128x128 emoji, 480x480 message) with validation utilities and animation concepts.
Install
Source : github.com/anthropics/skills/tree/main/skills/slack-gif-creator/plugin install example-skills@anthropic-agent-skills - internal-commsAnthropic official
Write internal communications in company formats: 3P updates, status reports, leadership updates, newsletters, FAQs, and incident reports.
Install
Source : github.com/anthropics/skills/tree/main/skills/internal-comms/plugin install example-skills@anthropic-agent-skills - doc-coauthoringAnthropic official
Structured three-stage workflow (context gathering, refinement, reader testing) for co-authoring docs, proposals, specs, and decision documents.
Install
Source : github.com/anthropics/skills/tree/main/skills/doc-coauthoring/plugin install example-skills@anthropic-agent-skills - feature-devAnthropic official
End-to-end feature development workflow with specialized agents for codebase exploration, architecture design, and quality review.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/feature-dev/plugin install feature-dev@claude-plugins-official - code-reviewAnthropic official
Automated pull-request review using multiple specialized agents with confidence-based scoring of findings.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/code-review/plugin install code-review@claude-plugins-official - pr-review-toolkitAnthropic official
PR review agents specializing in comments, tests, error handling, type design, code quality, and simplification.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/pr-review-toolkit/plugin install pr-review-toolkit@claude-plugins-official - commit-commandsAnthropic official
Simple slash commands for the git workflow: committing, pushing, and creating pull requests.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/commit-commands/plugin install commit-commands@claude-plugins-official - code-simplifierAnthropic official
Agent that refines code for clarity, consistency, and maintainability without changing behavior.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/code-simplifier/plugin install code-simplifier@claude-plugins-official - code-modernizationAnthropic official
Modernize legacy codebases (COBOL, old Java/C++/.NET, monoliths) via a structured assess/map/extract-rules/transform/harden workflow, including cross-stack rewrites and version uplifts.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/code-modernization/plugin install code-modernization@claude-plugins-official - hookifyAnthropic official
Create Claude Code hooks that block unwanted behaviors by analyzing patterns in your conversation history.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/hookify/plugin install hookify@claude-plugins-official - plugin-devAnthropic official
Toolkit for developing Claude Code plugins: creating agents, commands, hooks, MCP integrations, and correct plugin structure.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/plugin-dev/plugin install plugin-dev@claude-plugins-official - claude-md-managementAnthropic official
Maintain CLAUDE.md files: audit quality, capture session learnings, and keep project memory current.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/claude-md-management/plugin install claude-md-management@claude-plugins-official - claude-code-setupAnthropic official
Analyze a codebase and recommend tailored Claude Code automations: hooks, skills, MCP servers, and subagents.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/claude-code-setup/plugin install claude-code-setup@claude-plugins-official - agent-sdk-devAnthropic official
Development kit for building applications with the Claude Agent SDK.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/agent-sdk-dev/plugin install agent-sdk-dev@claude-plugins-official - mcp-server-devAnthropic official
Skills for designing MCP servers that work well with Claude: deployment models (remote HTTP, MCPB, local), tool design patterns, auth, and interactive MCP apps.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/mcp-server-dev/plugin install mcp-server-dev@claude-plugins-official - mcp-tunnelsAnthropic official
Connect Claude to a private MCP server through an Anthropic MCP tunnel; drives the Docker Compose quickstart end to end (certificates, proxy, cloudflared).
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/mcp-tunnels/plugin install mcp-tunnels@claude-plugins-official - security-guidanceAnthropic official
Security review of Claude-generated code: pattern warnings on edits, LLM diff review on Stop, and a commit reviewer covering injection, XSS, SSRF, secrets, and 25+ vulnerability classes.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/security-guidance/plugin install security-guidance@claude-plugins-official - ralph-loopAnthropic official
Run Claude in a continuous self-referential loop on the same prompt (the Ralph Wiggum technique) until the task is complete.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/ralph-loop/plugin install ralph-loop@claude-plugins-official - session-reportAnthropic official
Generate an explorable HTML report of Claude Code session usage from local transcripts: tokens, cache efficiency, subagents, skills, and most expensive prompts.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/session-report/plugin install session-report@claude-plugins-official - project-artifactAnthropic official
Publish a living project status page (overview, workstreams, next steps) as a shareable claude.ai artifact that refreshes to the same URL and reports only deltas.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/project-artifact/plugin install project-artifact@claude-plugins-official - playgroundAnthropic official
Create interactive single-file HTML playgrounds with visual controls and live preview; includes templates for design playgrounds, data explorers, concept maps, and document critique.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/playground/plugin install playground@claude-plugins-official - math-olympiadAnthropic official
Solve competition math (IMO, Putnam, USAMO) with fresh-context adversarial verifiers that attack proofs, plus calibrated abstention instead of bluffing.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/math-olympiad/plugin install math-olympiad@claude-plugins-official - explanatory-output-styleAnthropic official
Adds educational insights about implementation choices and codebase patterns while working (revives the deprecated Explanatory output style).
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/explanatory-output-style/plugin install explanatory-output-style@claude-plugins-official - learning-output-styleAnthropic official
Interactive learning mode that pauses and asks you to contribute meaningful code at decision points instead of writing everything itself.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/learning-output-style/plugin install learning-output-style@claude-plugins-official - cwc-makersAnthropic official
One-command onboarding for the Code-with-Claude Makers Cardputer: clones the build-with-claude repo, flashes UIFlow firmware, and installs the Claude Buddy app on an M5Stack Cardputer-Adv.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/cwc-makers/plugin install cwc-makers@claude-plugins-official - example-pluginAnthropic official
Reference plugin demonstrating every Claude Code extension surface: commands, agents, skills, hooks, and MCP servers.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/example-plugin/plugin install example-plugin@claude-plugins-official - skill-creator (plugin)Anthropic official
Plugin packaging of the skill-creator skill: create, improve, and benchmark skills with evals and variance analysis from inside Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/skill-creator/plugin install skill-creator@claude-plugins-official - frontend-design (plugin)Anthropic official
Plugin packaging of the frontend-design skill for distinctive UI/UX implementation in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/frontend-design/plugin install frontend-design@claude-plugins-official - typescript-lspAnthropic official
TypeScript/JavaScript language server integration for enhanced code intelligence in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/typescript-lsp/plugin install typescript-lsp@claude-plugins-official - pyright-lspAnthropic official
Python language server (Pyright) for type checking and code intelligence in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/pyright-lsp/plugin install pyright-lsp@claude-plugins-official - rust-analyzer-lspAnthropic official
Rust language server (rust-analyzer) for code intelligence and analysis in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/rust-analyzer-lsp/plugin install rust-analyzer-lsp@claude-plugins-official - gopls-lspAnthropic official
Go language server (gopls) for code intelligence and refactoring in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/gopls-lsp/plugin install gopls-lsp@claude-plugins-official - clangd-lspAnthropic official
C/C++ language server (clangd) for code intelligence in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/clangd-lsp/plugin install clangd-lsp@claude-plugins-official - jdtls-lspAnthropic official
Java language server (Eclipse JDT.LS) for code intelligence in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/jdtls-lsp/plugin install jdtls-lsp@claude-plugins-official - csharp-lspAnthropic official
C# language server for code intelligence in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/csharp-lsp/plugin install csharp-lsp@claude-plugins-official - kotlin-lspAnthropic official
Kotlin language server for code intelligence in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/kotlin-lsp/plugin install kotlin-lsp@claude-plugins-official - swift-lspAnthropic official
Swift language server (SourceKit-LSP) for code intelligence in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/swift-lsp/plugin install swift-lsp@claude-plugins-official - ruby-lspAnthropic official
Ruby language server for code intelligence and analysis in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/ruby-lsp/plugin install ruby-lsp@claude-plugins-official - php-lspAnthropic official
PHP language server (Intelephense) for code intelligence in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/php-lsp/plugin install php-lsp@claude-plugins-official - lua-lspAnthropic official
Lua language server for code intelligence in Claude Code.
Install
Source : github.com/anthropics/claude-plugins-official/tree/main/plugins/lua-lsp/plugin install lua-lsp@claude-plugins-official - brainstorming (superpowers)Community collection
Socratic design refinement before any creative work: explores user intent, requirements, and design alternatives before implementation starts.
Install
Source : github.com/obra/superpowers/tree/main/skills/brainstorming/plugin install superpowers@superpowers-marketplace - writing-plans (superpowers)Community collection
Turns a spec or requirements for a multi-step task into a detailed written implementation plan before touching code.
Install
Source : github.com/obra/superpowers/tree/main/skills/writing-plans/plugin install superpowers@superpowers-marketplace - executing-plans (superpowers)Community collection
Executes a written implementation plan in batches with review checkpoints, designed for running the plan in a separate session.
Install
Source : github.com/obra/superpowers/tree/main/skills/executing-plans/plugin install superpowers@superpowers-marketplace - test-driven-development (superpowers)Community collection
Enforces the RED-GREEN-REFACTOR cycle for any feature or bugfix, with a reference of testing anti-patterns to avoid.
Install
Source : github.com/obra/superpowers/tree/main/skills/test-driven-development/plugin install superpowers@superpowers-marketplace - systematic-debugging (superpowers)Community collection
4-phase root-cause process for any bug or test failure before proposing fixes, including root-cause tracing, defense-in-depth, and condition-based-waiting techniques.
Install
Source : github.com/obra/superpowers/tree/main/skills/systematic-debugging/plugin install superpowers@superpowers-marketplace - verification-before-completion (superpowers)Community collection
Requires running verification commands and confirming their output before claiming work is complete, fixed, or passing: evidence before assertions.
Install
Source : github.com/obra/superpowers/tree/main/skills/verification-before-completion/plugin install superpowers@superpowers-marketplace - using-git-worktrees (superpowers)Community collection
Sets up parallel development branches via git worktrees so multiple lines of work can proceed without stepping on each other.
Install
Source : github.com/obra/superpowers/tree/main/skills/using-git-worktrees/plugin install superpowers@superpowers-marketplace - requesting-code-review (superpowers)Community collection
Pre-review checklist for preparing work before asking for a code review.
Install
Source : github.com/obra/superpowers/tree/main/skills/requesting-code-review/plugin install superpowers@superpowers-marketplace - receiving-code-review (superpowers)Community collection
Structured way to respond to code-review feedback instead of blindly accepting or ignoring it.
Install
Source : github.com/obra/superpowers/tree/main/skills/receiving-code-review/plugin install superpowers@superpowers-marketplace - subagent-driven-development (superpowers)Community collection
Executes implementation plans with independent tasks in the current session using fast iteration and two-stage review (spec compliance, then code quality).
Install
Source : github.com/obra/superpowers/tree/main/skills/subagent-driven-development/plugin install superpowers@superpowers-marketplace - dispatching-parallel-agents (superpowers)Community collection
Runs concurrent subagent workflows to parallelize independent chunks of work.
Install
Source : github.com/obra/superpowers/tree/main/skills/dispatching-parallel-agents/plugin install superpowers@superpowers-marketplace - finishing-a-development-branch (superpowers)Community collection
When implementation is done and tests pass, guides the merge-vs-PR-vs-cleanup decision with structured options.
Install
Source : github.com/obra/superpowers/tree/main/skills/finishing-a-development-branch/plugin install superpowers@superpowers-marketplace - writing-skills (superpowers)Community collection
Meta-skill for creating new Claude Code skills following best practices, including a methodology for testing the skill itself.
Install
Source : github.com/obra/superpowers/tree/main/skills/writing-skills/plugin install superpowers@superpowers-marketplace - using-superpowers (superpowers)Community collection
Entry-point skill that establishes how to find and invoke the other skills at the start of any conversation, before any response.
Install
Source : github.com/obra/superpowers/tree/main/skills/using-superpowers/plugin install superpowers@superpowers-marketplace - search-first (ECC)Community collection
Research-before-coding workflow: search existing code, docs, and prior art before writing anything new.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/search-first/plugin install ecc@ecc - tdd-workflow (ECC)Community collection
Test-driven development methodology adapted to Claude Code sessions.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/tdd-workflow/plugin install ecc@ecc - verification-loop (ECC)Community collection
Continuous verification process so changes are checked as they land rather than at the end.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/verification-loop/plugin install ecc@ecc - eval-harness (ECC)Community collection
Builds evaluation harnesses to back the verification loop with measurable pass/fail gates.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/eval-harness/plugin install ecc@ecc - continuous-learning (ECC)Community collection
Stop-hook pattern extraction that captures lessons from sessions; v2 adds instinct-based learning with confidence scoring.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/continuous-learning/plugin install ecc@ecc - coding-standards (ECC)Community collection
Cross-language coding best practices applied during generation and review.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/coding-standards/plugin install ecc@ecc - golang-patterns (ECC)Community collection
Go idioms and best practices; paired with golang-testing for Go test patterns, TDD, and benchmarks.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/golang-patterns/plugin install ecc@ecc - python-patterns (ECC)Community collection
Python idioms and best practices for writing production Python.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/python-patterns/plugin install ecc@ecc - python-testing (ECC)Community collection
Python testing patterns with pytest.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/python-testing/plugin install ecc@ecc - cpp-coding-standards (ECC)Community collection
C++ standards based on the C++ Core Guidelines; cpp-testing covers GoogleTest and CMake/CTest patterns.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/cpp-coding-standards/plugin install ecc@ecc - backend-patterns (ECC)Community collection
Server-side architecture patterns: APIs, databases, and caching for Node.js/Express/Next.js backends.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/backend-patterns/plugin install ecc@ecc - frontend-patterns (ECC)Community collection
React and Next.js frontend patterns for component structure and data flow.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/frontend-patterns/plugin install ecc@ecc - api-design (ECC)Community collection
REST API design: resource naming, status codes, pagination, filtering, error responses, versioning, rate limiting.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/api-design/plugin install ecc@ecc - e2e-testing (ECC)Community collection
Playwright end-to-end testing patterns including the Page Object Model.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/e2e-testing/plugin install ecc@ecc - postgres-patterns (ECC)Community collection
PostgreSQL optimization patterns for schema and query work.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/postgres-patterns/plugin install ecc@ecc - clickhouse-io (ECC)Community collection
ClickHouse analytics and data-engineering patterns.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/clickhouse-io/plugin install ecc@ecc - database-migrations (ECC)Community collection
Safe migration patterns across Prisma, Drizzle, Django, and Go migration tooling.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/database-migrations/plugin install ecc@ecc - deployment-patterns (ECC)Community collection
CI/CD, Docker, health checks, and rollback patterns for shipping to production.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/deployment-patterns/plugin install ecc@ecc - docker-patterns (ECC)Community collection
Docker Compose, networking, volumes, and container security patterns.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/docker-patterns/plugin install ecc@ecc - django-patterns (ECC)Community collection
Django models/views/architecture patterns; companion skills cover django-security, django-tdd, and django-verification.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/django-patterns/plugin install ecc@ecc - laravel-patterns (ECC)Community collection
Laravel architecture patterns; companion skills cover laravel-security, laravel-tdd, and laravel-verification.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/laravel-patterns/plugin install ecc@ecc - springboot-patterns (ECC)Community collection
Java Spring Boot patterns; companion skills cover springboot-security, springboot-tdd, and springboot-verification, plus java-coding-standards and jpa-patterns.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/springboot-patterns/plugin install ecc@ecc - quarkus-patterns (ECC)Community collection
Java Quarkus patterns; companion skills cover quarkus-security, quarkus-tdd, and quarkus-verification.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/quarkus-patterns/plugin install ecc@ecc - perl-patterns (ECC)Community collection
Modern Perl 5.36+ idioms; companion skills cover perl-security (taint mode) and perl-testing (Test2::V0 TDD).
Install
Source : github.com/affaan-m/ECC/tree/main/skills/perl-patterns/plugin install ecc@ecc - mle-workflow (ECC)Community collection
Production ML engineering workflow: data contracts, evals, deployment, and monitoring.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/mle-workflow/plugin install ecc@ecc - videodb (ECC)Community collection
Video and audio pipeline skill: ingest, search, edit, generate, and stream media.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/videodb/plugin install ecc@ecc - frontend-slides (ECC)Community collection
Builds HTML slide decks and converts them to PPTX.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/frontend-slides/plugin install ecc@ecc - iterative-retrieval (ECC)Community collection
Progressive context refinement for subagents: retrieve, narrow, and re-query instead of dumping everything into context.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/iterative-retrieval/plugin install ecc@ecc - strategic-compact (ECC)Community collection
Suggests manual context-compaction points during long sessions to preserve what matters.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/strategic-compact/plugin install ecc@ecc - autonomous-loops (ECC)Community collection
Architectures for autonomous Claude Code loops, from sequential pipelines and PR loops to DAG-orchestrated multi-agent systems.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/autonomous-loops/plugin install ecc@ecc - security-review (ECC)Community collection
Security checklist and guidelines for reviewing code changes.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/security-review/plugin install ecc@ecc - security-scan (ECC)Community collection
Integrates the AgentShield security auditor to scan projects.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/security-scan/plugin install ecc@ecc - skill-stocktake (ECC)Community collection
Audits installed skills and commands for quality and staleness.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/skill-stocktake/plugin install ecc@ecc - configure-ecc (ECC)Community collection
Interactive installation wizard for setting up the ECC collection itself.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/configure-ecc/plugin install ecc@ecc - article-writing (ECC)Community collection
Long-form writing that avoids generic AI tone.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/article-writing/plugin install ecc@ecc - content-engine (ECC)Community collection
Multi-platform social content creation and repurposing pipeline.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/content-engine/plugin install ecc@ecc - market-research (ECC)Community collection
Source-attributed market and investor research with decision-oriented summaries.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/market-research/plugin install ecc@ecc - investor-materials (ECC)Community collection
Produces pitch decks, one-pagers, memos, and financial models; investor-outreach adds personalized fundraising outreach.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/investor-materials/plugin install ecc@ecc - cost-aware-llm-pipeline (ECC)Community collection
LLM cost optimization and model-routing patterns for pipelines; content-hash-cache-pattern adds SHA-256 content-hash caching.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/cost-aware-llm-pipeline/plugin install ecc@ecc - regex-vs-llm-structured-text (ECC)Community collection
Decision framework for choosing regex versus LLM parsing on structured text.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/regex-vs-llm-structured-text/plugin install ecc@ecc - liquid-glass-design (ECC)Community collection
iOS 26 Liquid Glass design system for SwiftUI, UIKit, and WidgetKit interfaces.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/liquid-glass-design/plugin install ecc@ecc - swift-concurrency-6-2 (ECC)Community collection
Swift 6.2 Approachable Concurrency patterns; related skills cover swift-actor-persistence, swift-protocol-di-testing, and foundation-models-on-device (Apple on-device LLM).
Install
Source : github.com/affaan-m/ECC/tree/main/skills/swift-concurrency-6-2/plugin install ecc@ecc - plankton-code-quality (ECC)Community collection
Write-time code-quality enforcement using Plankton hooks.
Install
Source : github.com/affaan-m/ECC/tree/main/skills/plankton-code-quality/plugin install ecc@ecc - revealjs-skillCommunity collection
Generate polished HTML presentations using the Reveal.js framework instead of PowerPoint.
Install
Source : github.com/ryanbbrown/revealjs-skillgit clone into ~/.claude/skills - claude-epub-skillCommunity collection
Convert markdown documents, chat summaries, or research reports into downloadable EPUB files for Kindle and e-readers.
Install
Source : github.com/smerchek/claude-epub-skillgit clone into ~/.claude/skills - avoid-ai-writingCommunity collection
Audit and rewrite content to remove 21 categories of telltale AI writing patterns.
Install
Source : github.com/conorbronsdon/avoid-ai-writinggit clone into ~/.claude/skills - debug-skillCommunity collection
Gives the agent a real debugger with breakpoints, stepping, variable inspection, and stack traces instead of print-debugging.
Install
Source : github.com/AlmogBaku/debug-skillgit clone into ~/.claude/skills - playwright-skillCommunity collection
General-purpose browser automation with Playwright for scraping, form filling, and end-to-end checks.
Install
Source : github.com/lackeyjb/playwright-skillgit clone into ~/.claude/skills - agent-lspCommunity collection
Semantic code intelligence via LSP: safe renames, refactors, impact analysis, and verification across a codebase.
Install
Source : github.com/blackwell-systems/agent-lspgit clone into ~/.claude/skills - qdrant-skillsCommunity collection
Operate Qdrant vector databases: search operations, performance tuning, deployment, and upgrades.
Install
Source : github.com/qdrant/skillsgit clone into ~/.claude/skills - aws-architecture-diagram-skillCommunity collection
Generate editable AWS architecture diagrams with verified service icons and multiple export formats.
Install
Source : github.com/vidanov/aws-architecture-diagram-skillgit clone into ~/.claude/skills - postgresCommunity collection
Run safe read-only SQL queries against PostgreSQL databases with multi-connection support.
Install
Source : github.com/sanjay3290/ai-skills/tree/main/skills/postgrescopy skill folder from sanjay3290/ai-skills - hashicorp-agent-skillsCommunity collection
HashiCorp-maintained skills for Terraform workflows and infrastructure automation.
Install
Source : github.com/hashicorp/agent-skillsgit clone into ~/.claude/skills - charles-proxy-extractCommunity collection
Extract and analyze HTTP traffic from Charles Proxy session files for API debugging.
Install
Source : github.com/wannabehero/charles-proxy-extract-skillgit clone into ~/.claude/skills - claude-design-auditor-skillCommunity collection
Audit UI designs against 17 professional rules (typography, WCAG contrast, spacing) with a score out of 100.
Install
Source : github.com/Ashutos1997/claude-design-auditor-skillgit clone into ~/.claude/skills - web-asset-generatorCommunity collection
Generate favicons, app icons, and social media images for web projects.
Install
Source : github.com/alonw0/web-asset-generatorgit clone into ~/.claude/skills - claude-d3js-skillCommunity collection
Create data visualizations in d3.js with correct idioms for scales, axes, and transitions.
Install
Source : github.com/chrisvoncsefalvay/claude-d3js-skillgit clone into ~/.claude/skills - test-driven-developmentCommunity collection
Enforces writing failing tests before implementation code for any feature or bugfix.
Install
Source : github.com/obra/superpowers/tree/main/skills/test-driven-developmentpart of obra/superpowers plugin - systematic-debuggingCommunity collection
Structured root-cause investigation of bugs and test failures before proposing any fix.
Install
Source : github.com/obra/superpowers/blob/main/skills/systematic-debuggingpart of obra/superpowers plugin - brainstormingCommunity collection
Turns rough ideas into fully-formed designs through structured questioning before any code is written.
Install
Source : github.com/obra/superpowers/tree/main/skills/brainstormingpart of obra/superpowers plugin - using-git-worktreesCommunity collection
Create isolated git worktrees with smart directory selection and safety checks for parallel work.
Install
Source : github.com/obra/superpowers/blob/main/skills/using-git-worktreespart of obra/superpowers plugin - finishing-a-development-branchCommunity collection
Guides branch completion with structured options for merge, PR creation, or cleanup once tests pass.
Install
Source : github.com/obra/superpowers/tree/main/skills/finishing-a-development-branchpart of obra/superpowers plugin - get-shit-doneCommunity collection
Lightweight meta-prompting and spec-driven development system for shipping features fast.
Install
Source : github.com/gsd-build/get-shit-donegit clone into ~/.claude/skills - blueprintCommunity collection
Planning copilot that explores the codebase, asks clarifying questions, and generates executable markdown plans.
Install
Source : github.com/imbue-ai/blueprintgit clone into ~/.claude/skills - VibeSec-SkillCommunity collection
Guides Claude to write secure code and avoid common vulnerability classes while generating.
Install
Source : github.com/BehiSecc/VibeSec-Skillgit clone into ~/.claude/skills - ffuf_claude_skillCommunity collection
Integrates the FFUF web fuzzer and analyzes its results for vulnerabilities during penetration testing.
Install
Source : github.com/jthack/ffuf_claude_skillgit clone into ~/.claude/skills - owasp-securityCommunity collection
Code review checklists covering OWASP Top 10:2025, ASVS 5.0, and agentic AI security.
Install
Source : github.com/agamm/claude-code-owaspgit clone into ~/.claude/skills - sanitizeCommunity collection
Detect and redact PII from text files across 15 categories with zero dependencies.
Install
Source : github.com/agentward-ai/agentward/tree/main/agentward-sanitize-skillcopy skill folder into ~/.claude/skills - varlock-claude-skillCommunity collection
Secure environment variable management so secrets never appear in agent sessions or transcripts.
Install
Source : github.com/wrsmith108/varlock-claude-skillgit clone into ~/.claude/skills - claude-scientific-skillsCommunity collection
Bundle of 125+ scientific skills for bioinformatics, cheminformatics, clinical research, and ML with specialized libraries and databases.
Install
Source : github.com/K-Dense-AI/scientific-agent-skillsgit clone into ~/.claude/skills - paper-searchCommunity collection
Search 250M+ academic works via OpenAlex by keyword or DOI to find and cite papers.
Install
Source : github.com/ykdojo/paper-searchgit clone into ~/.claude/skills - csv-data-summarizer-claude-skillCommunity collection
Automatically profile CSVs: columns, distributions, missing data, and correlations.
Install
Source : github.com/coffeefuelbump/csv-data-summarizer-claude-skillgit clone into ~/.claude/skills - kaggle-skillCommunity collection
Full Kaggle integration: account setup, dataset downloads, competition reports, and submissions.
Install
Source : github.com/shepsci/kaggle-skillgit clone into ~/.claude/skills - gh-star-historyCommunity collection
Visualize and compare GitHub star history as interactive charts with regional breakdown.
Install
Source : github.com/ykdojo/gh-star-historygit clone into ~/.claude/skills - content-research-writerCommunity collection
Research-backed content writing with citations, improved hooks, and structure.
Install
Source : github.com/ComposioHQ/awesome-claude-skills/tree/master/content-research-writercopy skill folder into ~/.claude/skills - materials-simulation-skillsCommunity collection
Computational materials science skills covering numerical stability, time-stepping, and mesh generation.
Install
Source : github.com/HeshamFS/materials-simulation-skillsgit clone into ~/.claude/skills - llm-wikiCommunity collection
Build and maintain an LLM-curated personal knowledge base with sharded indexes and search.
Install
Source : github.com/praneybehl/llm-wiki-plugingit clone into ~/.claude/skills - notebooklmCommunity collection
Query and manage Google NotebookLM notebooks with persistent auth, batch queries, and source sync.
Install
Source : github.com/sanjay3290/ai-skills/tree/main/skills/notebooklmcopy skill folder from sanjay3290/ai-skills - youtube-transcriptCommunity collection
Fetch YouTube video transcripts and prepare summaries without watching the video.
Install
Source : github.com/michalparkola/tapestry-skills/tree/main/youtube-transcriptcopy skill folder into ~/.claude/skills - video-downloaderCommunity collection
Download videos from YouTube and other platforms for offline viewing, editing, or archival.
Install
Source : github.com/ComposioHQ/awesome-claude-skills/tree/master/video-downloadercopy skill folder into ~/.claude/skills - image-enhancerCommunity collection
Improve image quality, especially low-resolution screenshots, before use in docs or sites.
Install
Source : github.com/ComposioHQ/awesome-claude-skills/tree/master/image-enhancercopy skill folder into ~/.claude/skills - elevenlabsCommunity collection
Text-to-speech narration and two-host podcast generation from documents via the ElevenLabs API.
Install
Source : github.com/sanjay3290/ai-skills/tree/main/skills/elevenlabscopy skill folder from sanjay3290/ai-skills; needs API key - video-prompting-skillCommunity collection
Draft and refine prompts for video generation models such as LTX-2, Sora, and Veo 3.
Install
Source : github.com/Square-Zero-Labs/video-prompting-skillgit clone into ~/.claude/skills - invoice-organizerCommunity collection
Automatically sort and rename invoices and receipts for tax preparation.
Install
Source : github.com/ComposioHQ/awesome-claude-skills/blob/master/invoice-organizer/SKILL.mdcopy skill folder into ~/.claude/skills - meeting-insights-analyzerCommunity collection
Turn meeting transcripts into actionable insights about decisions and communication patterns.
Install
Source : github.com/ComposioHQ/awesome-claude-skills/blob/master/meeting-insights-analyzercopy skill folder into ~/.claude/skills - linear-claude-skillCommunity collection
Manage Linear issues, projects, and teams via MCP tools, SDK scripts, and GraphQL fallbacks.
Install
Source : github.com/wrsmith108/linear-claude-skillgit clone into ~/.claude/skills - ios-simulator-skillCommunity collection
Build and test iOS apps through simulator automation from Claude Code.
Install
Source : github.com/conorluddy/ios-simulator-skillgit clone into ~/.claude/skills (macOS) - expo-skillsCommunity collection
Official Expo team skills for developing, styling, and deploying Expo React Native apps.
Install
Source : github.com/expo/skillsgit clone into ~/.claude/skills - unity-agent-skillsCommunity collection
AI-assisted Unity debugging with structured logging, runtime commands, and variable watching.
Install
Source : github.com/jahro-console/unity-agent-skillsgit clone into ~/.claude/skills - swarmclawCommunity collection
Drive a self-hosted multi-agent runtime to delegate work across multiple coding CLIs.
Install
Source : github.com/swarmclawai/swarmclaw/blob/main/skills/swarmclaw.mdsee repo; skill file plus runtime - julesCommunity collection
Delegate coding tasks (bug fixes, docs, tests) asynchronously to the Google Jules AI agent.
Install
Source : github.com/sanjay3290/ai-skills/tree/main/skills/julescopy skill folder from sanjay3290/ai-skills - agnixCommunity collection
Linter for agent configurations: validates SKILL.md, CLAUDE.md, and hooks with 156 rules and auto-fix.
Install
Source : github.com/agent-sh/agnixsee repo (CLI tool plus skill) - review-claudemdCommunity collection
Review recent Claude Code conversations to propose improvements to CLAUDE.md files.
Install
Source : github.com/ykdojo/claude-code-tips/tree/main/skills/review-claudemdcopy skill folder into ~/.claude/skills - plugin-authoringCommunity collection
Ambient guidance for creating, modifying, and debugging Claude Code plugins with schemas and templates.
Install
Source : github.com/ivan-magda/claude-code-plugin-template/tree/main/plugins/plugin-development/skills/plugin-authoringcopy skill folder into ~/.claude/skills - find-skillsMarketplace
Discovers and installs agent skills matching a plain-language request ("is there a skill that can X"), acting as the entry point to the skills.sh ecosystem.
Install
Source : skills.sh/vercel-labs/skills/find-skillsnpx skills add vercel-labs/skills/find-skills (2.4M installs) - vercel-react-best-practicesMarketplace
Vercel's React and Next.js performance rules (rendering, data fetching, bundle hygiene) applied while the agent writes or reviews code.
Install
Source : skills.sh/vercel-labs/agent-skills/vercel-react-best-practicesnpx skills add vercel-labs/agent-skills/vercel-react-best-practices (536.2K installs) - agent-browserMarketplace
Gives the agent a driveable headless browser (navigate, click, fill, screenshot) for testing and inspecting live web pages from the CLI.
Install
Source : skills.sh/vercel-labs/agent-browser/agent-browsernpx skills add vercel-labs/agent-browser/agent-browser (526.2K installs) - grill-meMarketplace
Matt Pocock's spec-interview skill: the agent interrogates your request with pointed questions to expose vague requirements before writing any code.
Install
Source : skills.sh/mattpocock/skills/grill-menpx skills add mattpocock/skills/grill-me (492.1K installs) - web-design-guidelinesMarketplace
Vercel's web interface guidelines for auditing and building UI: accessibility, spacing, states, and interaction details checked against a concrete rule list.
Install
Source : skills.sh/vercel-labs/agent-skills/web-design-guidelinesnpx skills add vercel-labs/agent-skills/web-design-guidelines (448.7K installs) - microsoft-foundryMarketplace
Microsoft's official guidance for building on Azure AI Foundry: models, agents, and deployments via the azure-skills repo.
Install
Source : skills.sh/microsoft/azure-skills/microsoft-foundrynpx skills add microsoft/azure-skills/microsoft-foundry (440.9K installs) - remotion-best-practicesMarketplace
Official Remotion team rules for authoring programmatic videos in React (compositions, timing, rendering) without common Remotion mistakes.
Install
Source : skills.sh/remotion-dev/skills/remotion-best-practicesnpx skills add remotion-dev/skills/remotion-best-practices (415.9K installs) - grill-with-docsMarketplace
Variant of grill-me that grounds its interrogation in fetched library documentation, so requirement questions reference real API constraints.
Install
Source : skills.sh/mattpocock/skills/grill-with-docsnpx skills add mattpocock/skills/grill-with-docs (409.7K installs) - improve-codebase-architectureMarketplace
Analyzes an existing codebase's structure and proposes concrete refactors toward better module boundaries and dependency direction.
Install
Source : skills.sh/mattpocock/skills/improve-codebase-architecturenpx skills add mattpocock/skills/improve-codebase-architecture (404.5K installs) - tdd (mattpocock)Marketplace
Enforces a red-green-refactor loop: write the failing test first, implement minimally, refactor, for every feature or fix.
Install
Source : skills.sh/mattpocock/skills/tddnpx skills add mattpocock/skills/tdd (386.6K installs) - to-prdMarketplace
Turns a rough feature idea or conversation into a structured Product Requirements Document ready to hand to implementation.
Install
Source : skills.sh/mattpocock/skills/to-prdnpx skills add mattpocock/skills/to-prd (354.0K installs) - supabase-postgres-best-practicesMarketplace
Official Supabase rules for Postgres schema design, RLS policies, indexing, and query patterns when building on Supabase.
Install
Source : skills.sh/supabase/agent-skills/supabase-postgres-best-practicesnpx skills add supabase/agent-skills/supabase-postgres-best-practices (275.6K installs) - ui-ux-pro-maxMarketplace
Large searchable UI/UX knowledge pack (named styles, palettes, font pairings, UX rules) used to pick a coherent design direction before building.
Install
Source : skills.sh/nextlevelbuilder/ui-ux-pro-max-skill/ui-ux-pro-maxnpx skills add nextlevelbuilder/ui-ux-pro-max-skill/ui-ux-pro-max (256.8K installs) - just-scrapeMarketplace
ScrapeGraphAI skill that scrapes websites into structured data from natural-language extraction prompts.
Install
Source : skills.sh/scrapegraphai/just-scrape/just-scrapenpx skills add scrapegraphai/just-scrape/just-scrape (244.8K installs) - design-taste-frontendMarketplace
Anti-slop frontend skill for landing pages, portfolios, and redesigns: infers the right design direction from the brief and audits before redesigning, with a strict pre-flight check.
Install
Source : skills.sh/leonxlnx/taste-skill/design-taste-frontendnpx skills add leonxlnx/taste-skill/design-taste-frontend (236.3K installs) - shadcnMarketplace
Official shadcn/ui skill for installing, composing, and theming registry components correctly instead of hand-rolling lookalikes.
Install
Source : skills.sh/shadcn/ui/shadcnnpx skills add shadcn/ui/shadcn (226.7K installs) - impeccableMarketplace
Paul Bakaus's design language system: one skill plus 23 commands and 45 detector rules that flag and fix cheap-looking UI patterns.
Install
Source : skills.sh/pbakaus/impeccable/impeccablenpx skills add pbakaus/impeccable/impeccable (187.3K installs) - high-end-visual-designMarketplace
Defines the exact fonts, spacing, shadows, card structures, and animations of high-end agency work, and blocks the common defaults that make AI designs look generic.
Install
Source : skills.sh/leonxlnx/taste-skill/high-end-visual-designnpx skills add leonxlnx/taste-skill/high-end-visual-design (186.4K installs) - writing-plansMarketplace
From Superpowers: converts a spec into a written multi-step implementation plan with checkpoints before any code is touched.
Install
Source : skills.sh/obra/superpowers/writing-plansnpx skills add obra/superpowers/writing-plans (176.6K installs) - seo-auditMarketplace
From Corey Haines's marketing skills: runs a structured SEO audit of a site covering technical health, on-page factors, and content gaps.
Install
Source : skills.sh/coreyhaines31/marketingskills/seo-auditnpx skills add coreyhaines31/marketingskills/seo-audit (156.3K installs) - copywritingMarketplace
Writes and edits marketing copy (headlines, landing pages, emails) following direct-response copywriting principles.
Install
Source : skills.sh/coreyhaines31/marketingskills/copywritingnpx skills add coreyhaines31/marketingskills/copywriting (146.3K installs) - verification-before-completionMarketplace
From Superpowers: blocks any "done/fixed/passing" claim until verification commands have actually been run and their output confirmed.
Install
Source : skills.sh/obra/superpowers/verification-before-completionnpx skills add obra/superpowers/verification-before-completion (137.2K installs) - extract-design-systemMarketplace
Extracts a reusable design system (colors, typography, spacing, component patterns) from an existing site or screenshots.
Install
Source : skills.sh/arvindrk/extract-design-system/extract-design-systemnpx skills add arvindrk/extract-design-system/extract-design-system (125.0K installs) - emil-design-engMarketplace
Emil Kowalski's design-engineering taste for React UI: animation timing, easing, and interaction polish details.
Install
Source : skills.sh/emilkowalski/skills/emil-design-engnpx skills add emilkowalski/skills/emil-design-eng (122.3K installs) - marketing-psychologyMarketplace
Applies persuasion and behavioral-psychology principles (social proof, loss aversion, framing) to marketing pages and campaigns.
Install
Source : skills.sh/coreyhaines31/marketingskills/marketing-psychologynpx skills add coreyhaines31/marketingskills/marketing-psychology (107.6K installs) - firebase-basicsMarketplace
Official Firebase skill covering project setup, SDK integration, and core service usage for apps built on Firebase.
Install
Source : skills.sh/firebase/agent-skills/firebase-basicsnpx skills add firebase/agent-skills/firebase-basics (102.0K installs) - sentry-cliMarketplace
Official Sentry skill for instrumenting apps and managing releases, sourcemaps, and issues through the Sentry CLI.
Install
Source : skills.sh/sentry/dev/sentry-clinpx skills add sentry/dev/sentry-cli (100.2K installs) - programmatic-seoMarketplace
Plans and scaffolds programmatic SEO: keyword-pattern page templates generated at scale from structured data.
Install
Source : skills.sh/coreyhaines31/marketingskills/programmatic-seonpx skills add coreyhaines31/marketingskills/programmatic-seo (99.0K installs) - firecrawlMarketplace
Official Firecrawl skill: crawl and scrape websites into clean markdown/structured data via the Firecrawl CLI (companion skills exist for scrape, search, crawl, map).
Install
Source : skills.sh/firecrawl/cli/firecrawlnpx skills add firecrawl/cli/firecrawl (89.5K installs) - deploy-to-vercelMarketplace
Deploys the current project to Vercel with correct project linking and configuration from the CLI.
Install
Source : skills.sh/vercel-labs/agent-skills/deploy-to-vercelnpx skills add vercel-labs/agent-skills/deploy-to-vercel (87.9K installs) - ai-seoMarketplace
Optimizes content and site structure for AI answer engines (ChatGPT, Perplexity, Claude) rather than classic SERPs.
Install
Source : skills.sh/coreyhaines31/marketingskills/ai-seonpx skills add coreyhaines31/marketingskills/ai-seo (87.0K installs) - browser-useMarketplace
Official browser-use skill: autonomous browser automation (navigate, interact, extract) driven by the agent.
Install
Source : skills.sh/browser-use/browser-use/browser-usenpx skills add browser-use/browser-use/browser-use (83.3K installs) - playwright-cliMarketplace
Microsoft's official Playwright CLI skill for scripting browser automation and end-to-end tests.
Install
Source : skills.sh/microsoft/playwright-cli/playwright-clinpx skills add microsoft/playwright-cli/playwright-cli (80.2K installs) - code-reviewerMarketplace
Runs a structured code review pass checking security, logic, performance, and style; Agensi's most-installed skill.
Install
Source : www.agensi.io/skillsFree download from Agensi, unzip to ~/.claude/skills/ (116 installs) - git-commit-writerMarketplace
Analyzes staged git changes and writes conventional-commit messages matching the actual diff.
Install
Source : www.agensi.io/skillsFree download from Agensi, unzip to ~/.claude/skills/ (65 installs) - readme-generatorMarketplace
Scans a project's structure and generates a complete README.md (features, setup, usage).
Install
Source : www.agensi.io/skillsFree download from Agensi, unzip to ~/.claude/skills/ (49 installs) - env-doctorMarketplace
Systematically diagnoses why a project will not start: env vars, versions, ports, and dependency mismatches.
Install
Source : www.agensi.io/skillsFree download from Agensi, unzip to ~/.claude/skills/ (30 installs) - migration-auditorMarketplace
Reviews database migration files for destructive or locking operations before they reach production.
Install
Source : www.agensi.io/learn/best-claude-code-skills-2026Paid skill on Agensi, unzip to ~/.claude/skills/ - skill-seekersMarketplace
Converts any documentation website into an installable Claude skill automatically.
Install
Source : claudeskills.info/skillsVia claudeskills.info listing, author yusufkaraaslan (14.3k downloads) - reddit-content-fetcherMarketplace
Fetches Reddit threads and comments when normal WebFetch returns 403 errors.
Install
Source : claudeskills.info/skillsVia claudeskills.info listing, author ykdojo (9.0k downloads) - notebooklm-integrationMarketplace
Lets the agent chat directly with Google NotebookLM for source-grounded answers over uploaded documents.
Install
Source : claudeskills.info/skillsVia claudeskills.info listing, author PleasePrompto (7.3k downloads) - changelog-generator (ComposioHQ)Marketplace
Automatically creates user-facing changelogs from git commit history.
Install
Source : claudeskills.info/skillsVia claudeskills.info listing, ComposioHQ collection (66.6k downloads) - academy-guideAnthropic official
Recommends matching Claude Academy (academy.claude.com) courses, tutorials, and use cases whenever a user asks how to use Claude or a Claude product, composing with product documentation answers rather than replacing them.
Install
Source : github.com/anthropics/skills/tree/main/skills/academy-guide/plugin install academy-guide@anthropic-agent-skills - discernment-nudgeAnthropic official
After a substantive answer or draft the user may act on, appends two to three short follow-up questions tied to specific claims in that answer, to help the user check facts, probe the reasoning, and notice missing context; at most once per conversation.
Install
Source : github.com/anthropics/skills/tree/main/skills/discernment-nudge/plugin install discernment-nudge@anthropic-agent-skills