AI skills you can trust
Skills, MCP servers, prompts and tools for Claude, ChatGPT and other agents. Every entry shows who published it, what a security scan found, and whether a person has reviewed it.
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54 entries
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Agent Skills specification
The open SKILL.md format that lets one skill folder work in Claude, ChatGPT, Codex, Gemini CLI, Cursor, GitHub Copilot and dozens of other agents.
Standard by Agent Skills (originally developed by Anthropic) Claude apps, Claude Code, ChatGPT, Codex, Gemini, Cursor, Any agent
Official Reviewed — safe to install Guidance only -
Anthropic skills
Anthropic's own skills for documents, design, art, internal comms and building new skills and MCP servers.
Plugin by Anthropic Claude apps, Claude Code
Official Reviewed — install with care Runs on your machine -
Claude for Financial Services plugins
Anthropic's plugin marketplace of finance skills and agents — comps, DCF, LBO, three-statement models, earnings notes, IC memos — plus pre-wired connectors to paid market-data providers.
Plugin by Anthropic Claude apps, Claude Code
Official Reviewed — safe to install Reads your accounts -
Context7
Pulls current, version-specific library docs and code examples into the agent's context so it stops guessing APIs from old training data.
MCP server by Upstash Claude Code, Claude apps, Cursor, Codex, Gemini, Any agent
Official Reviewed — safe to install Reads your accounts -
OpenAI plugins (Codex official marketplace)
The built-in plugin catalog for Codex and ChatGPT. It has 62 plugins from OpenAI and partners that bundle skills, app connectors and MCP servers for tools like GitHub, Figma, Notion, Slack, Stripe and Google Drive.
Plugin by OpenAI Codex, ChatGPT
Official Reviewed — install with care Changes things freely -
SkillSpector
NVIDIA's scanner that checks an agent skill or MCP server for prompt injection, data exfiltration and other risks before you install it.
Tool by NVIDIA Any agent, Claude Code, Codex, Gemini
Official Reviewed — safe to install Runs on your machine -
AGENTS.md
A plain Markdown file at the root of a repo that tells any coding agent how to build, test and work in the project.
Standard by Agentic AI Foundation (Linux Foundation) Codex, Claude Code, Cursor, Gemini, Any agent
Official Reviewed — safe to install Guidance only -
Alpha Vantage MCP server
Gives an agent Alpha Vantage's stock, ETF, forex, crypto, fundamentals, economic-indicator and technical-indicator data as MCP tools, hosted or run locally.
MCP server by Alpha Vantage Claude apps, Claude Code, ChatGPT, Codex, Gemini, Cursor
Official Reviewed — safe to install Reads your accounts -
Anthropic finance plugin
Skills and slash commands for month-end close, journal entries, reconciliations, financial statements, variance analysis and SOX testing.
Plugin by Anthropic Claude apps, Claude Code
Official Reviewed — safe to install Reads your accounts -
Anthropic operations plugin
Skills for writing process docs, runbooks, status reports, vendor reviews, change requests, capacity plans and compliance trackers.
Plugin by Anthropic Claude apps, Claude Code
Official Reviewed — safe to install Runs on your machine -
Anthropic small business plugin
Forty-plus small-business workflows (closing the month, paying bills, chasing invoices, cash-flow snapshots, payroll prep, weekly briefs) wired to the accounting, payments, CRM and email tools you already use.
Plugin by Anthropic Claude apps, Claude Code
Official Reviewed — safe to install Can move money -
Chrome DevTools MCP
Gives an agent a live Chrome with DevTools, so it can record performance traces, read network and console output, and debug the page it just built.
MCP server by Google Chrome DevTools team Claude Code, Claude apps, Cursor, Codex, Gemini, Any agent
Official Reviewed — install with care Changes things freely -
Cisco Skill Scanner
Cisco AI Defense's scanner for agent skills, combining YARA and pattern rules, code dataflow analysis and an optional LLM judge to flag prompt injection, exfiltration and malicious code.
Tool by Cisco AI Defense Any agent, Claude Code, Codex, Cursor
Official Reviewed — safe to install Runs on your machine -
Claude Agent SDK
Anthropic's Python and TypeScript libraries for building your own agents on the same loop, tools, permissions and MCP support that run Claude Code.
Tool by Anthropic Claude Code, Any agent
Official Reviewed — install with care Changes things freely -
Claude Code official plugin directory
Anthropic's plugin marketplace for Claude Code, with Anthropic-built plugins for code review, security review, plugin and MCP development, plus vetted partner plugins.
Plugin by Anthropic Claude Code
Official Reviewed — install with care Changes things freely -
Claude Opus 5.5
Anthropic's recommended default model for long-running coding, agent work and document-heavy knowledge work, with a 1M-token context window.
Model by Anthropic Claude apps, Claude Code, Any agent
Official Reviewed — safe to install Guidance only -
Cloudflare MCP servers
A set of hosted Cloudflare MCP servers for docs, Workers bindings, build logs, observability, browser rendering and other product areas.
MCP server by Cloudflare Claude Code, Claude apps, Cursor, Codex, Any agent
Official Reviewed — install with care Changes things freely -
dbt MCP server
Lets an agent read your dbt project — models, lineage, metrics, job runs — query the Semantic Layer, and optionally run dbt commands like build, run and test.
MCP server by dbt Labs Claude apps, Claude Code, Cursor, Any agent
Official Reviewed — install with care Changes things freely -
DeepSeek-V4-Pro
DeepSeek's open-weight flagship under the MIT license, for teams that need to self-host or want a low-cost hosted API for agent and coding work.
Model by DeepSeek Any agent
Official Reviewed — safe to install Guidance only -
DuckDB / MotherDuck MCP server
Run DuckDB SQL from an agent over local files, in-memory data, S3 or MotherDuck — good for quick analysis of CSV, Parquet and JSON without a warehouse.
MCP server by MotherDuck Claude apps, Claude Code, Codex, Gemini, Cursor, Any agent
Official Reviewed — install with care Reads your accounts -
Figma MCP server and skills
Gives coding agents design context from Figma (layout, variables, components, Code Connect mappings), and on the remote server lets them write back to the canvas.
MCP server by Figma Claude Code, Claude apps, Cursor, Codex, Gemini, Any agent
Official Reviewed — install with care Changes things freely -
Firecrawl CLI skills
Search the web, scrape pages to clean markdown, crawl sites and watch pages for changes from inside an agent session.
Skill by Firecrawl Claude Code, Codex, Cursor, Gemini
Official Reviewed — safe to install Reads your accounts -
Firecrawl workflow skills
Sixteen outcome skills that turn web data into finished work — cited research reports, SEO audits, QA reports, lead lists and design-system extractions.
Workflow by Firecrawl Claude Code, Codex, Cursor
Official Reviewed — safe to install Reads your accounts -
Gemini 3.8 Flash
Google's newest stable Gemini model, built for agents and long software tasks at Flash pricing, with 1M-token multimodal input.
Model by Google Any agent
Official Reviewed — safe to install Guidance only -
GitHub MCP Server
Lets an agent read code, manage issues and pull requests, and check Actions runs and security alerts in your GitHub repositories.
MCP server by GitHub Claude Code, Claude apps, Cursor, Codex, Any agent
Official Reviewed — install with care Changes things freely -
Gitleaks
Finds API keys, tokens and other secrets in a git history, a folder or piped input, locally and with no account.
Tool by Gitleaks Any agent
Official Reviewed — safe to install Runs on your machine -
GPT-6 Astra
OpenAI's most capable API model, recommended for complex reasoning, coding, computer use, research and document creation.
Model by OpenAI Any agent
Official Reviewed — safe to install Guidance only -
LangExtract
Python library that uses an LLM to pull structured fields out of long unstructured text, tying every extracted value back to its exact location in the source.
Tool by Google Any agent
Official Reviewed — safe to install Runs on your machine -
Linear MCP server
Lets an agent find, create and update Linear issues, projects and comments, so ticket work stays next to the code.
MCP server by Linear Claude Code, Claude apps, Cursor, Codex, Any agent
Official Reviewed — install with care Changes things freely -
Massive (formerly Polygon.io) MCP server
Search and call the whole Massive.com market-data API — stocks, options, forex, crypto, futures, fundamentals, news — and run SQL over the results in a scratch in-memory table.
MCP server by Massive Claude apps, Claude Code, Any agent
Official Reviewed — safe to install Reads your accounts -
MCP Inspector
The MCP project's official tool for connecting to an MCP server and exercising its tools, resources and prompts, in a web UI, a terminal UI or a scriptable CLI.
Tool by Model Context Protocol Any agent
Official Reviewed — install with care Runs on your machine -
MCP reference servers
The seven reference MCP servers kept by the MCP steering group — filesystem, git, fetch, memory, time, sequential thinking and a test server — as working examples of the protocol.
MCP server by Model Context Protocol Any agent, Claude apps, Claude Code, Cursor, Codex
Official Reviewed — install with care Changes things freely -
MCP Registry
The official public list of MCP servers, with an API clients can query and a CLI for publishing your own server under a verified namespace.
Tool by Model Context Protocol Any agent
Official Reviewed — safe to install Reads your accounts -
MCP Toolbox for Databases (BigQuery and more)
Google's open-source MCP server that gives an agent ready-made SQL, schema and forecasting tools for BigQuery and 30-plus other databases, or tools you define in YAML.
MCP server by Google Claude Code, Codex, Gemini, Cursor, Any agent
Official Reviewed — install with care Changes things freely -
NetSuite Finance Analyst
Oracle's skill for finance analysis on live NetSuite data (close readiness, budget vs. actual, AR/AP aging, cash position, journal entry review and board-ready narratives).
Skill by Oracle NetSuite Claude apps, Claude Code
Official Reviewed — safe to install Changes things, asks first -
Notion MCP (remote)
Notion's hosted MCP server lets an agent search your workspace semantically, read pages as Markdown, and create or update pages, databases and comments with your own Notion permissions.
MCP server by Notion Claude apps, Claude Code, Cursor, ChatGPT, Any agent
Official Reviewed — install with care Changes things freely -
OpenAI plugins & Apps SDK
OpenAI's official way to package skills, an MCP server and optional UI into one plugin that people install from a shared ChatGPT and Codex directory.
Tool by OpenAI ChatGPT, Codex
Official Reviewed — safe to install Guidance only -
OpenSSF Scorecard
Scores a GitHub or GitLab repository on security practices — branch protection, pinned dependencies, signed releases, dangerous workflows, maintenance — so you can judge where a skill comes from.
Tool by OpenSSF Any agent
Official Reviewed — safe to install Reads your accounts -
OSV-Scanner
Google's scanner that matches a project's lockfiles, vendored code or container image against the open OSV.dev vulnerability database.
Tool by Google Any agent
Official Reviewed — safe to install Runs on your machine -
Playwright MCP
Lets an agent drive a real browser with Playwright, working from the page's accessibility tree instead of screenshots.
MCP server by Microsoft Claude Code, Claude apps, Cursor, Codex, Any agent
Official Reviewed — install with care Changes things freely -
Public Equity Investing (OpenAI plugin)
OpenAI's plugin of 23 skills for listed-company research. It builds earnings previews, DCF and three-statement models, comps, catalyst calendars, long/short pitches and investment memos.
Plugin by OpenAI Codex, ChatGPT
Official Reviewed — safe to install Runs on your machine -
QuickBooks plugin for Claude
Intuit's skills for QuickBooks Online (business health briefings, industry benchmarks, invoice reminders, estimates from email threads, payroll lookups and base-pay changes) running on the hosted QuickBooks connector.
Plugin by Intuit Claude apps, Claude Code
Official Reviewed — safe to install Changes things, asks first -
Sentry MCP
Lets a coding agent look up Sentry issues, stack traces, traces and releases, and run Seer root-cause analysis without leaving the editor.
MCP server by Sentry Claude Code, Claude apps, Cursor, Codex, Any agent
Official Reviewed — install with care Changes things freely -
skills CLI (npx skills)
Installs Agent Skills from GitHub, GitLab, any git URL or a local folder into Claude Code, Codex, Cursor, Gemini CLI and 75+ other agents with one command.
Tool by Vercel Labs Claude Code, Codex, Cursor, Gemini, Any agent
Official Reviewed — install with care Runs on your machine -
Snyk Agent Scan
Finds the MCP servers and skills installed across your coding agents and checks them for prompt injection, tool poisoning, toxic flows and malicious code.
Tool by Snyk Any agent, Claude Code, Claude apps, Cursor, Codex, Gemini
Official Reviewed — install with care Runs on your machine -
Stripe MCP server and plugin
Stripe's hosted MCP server lets an agent read and write your Stripe account (customers, invoices, subscriptions, refunds, payment links, analytics). The plugin adds Stripe skills on top.
MCP server by Stripe Claude apps, Claude Code, Codex, Cursor, ChatGPT, Gemini
Official Reviewed — install with care Can move money -
Supabase MCP
Connects an agent to your Supabase projects to design tables, run SQL, apply migrations, read logs and generate TypeScript types.
MCP server by Supabase Claude Code, Claude apps, Cursor, Codex, Any agent
Official Reviewed — install with care Changes things freely -
Vercel agent skills
Vercel's skills for React and Next.js performance rules, web interface and accessibility review, composition patterns, view transitions and deploying to Vercel.
Skill by Vercel Claude Code, Claude apps, Cursor, Codex
Official Reviewed — install with care Changes things freely -
Xero MCP server
Xero's open-source MCP server for reading and writing a Xero organisation (invoices, contacts, payments, bank transactions, manual journals, reports and UK/NZ payroll timesheets).
MCP server by Xero Claude apps, Claude Code, Cursor, Any agent
Official Reviewed — install with care Can move money -
Zapier MCP
Zapier's hosted MCP server exposes actions you choose, across 9,000+ apps (Gmail, Sheets, Slack, HubSpot, QuickBooks and more), as agent tools. The plugin adds onboarding, demo, explore and status skills.
MCP server by Zapier Claude apps, Claude Code, Cursor, Codex, Gemini
Official Reviewed — install with care Changes things freely -
Product naming strategy
Name or rename a product, company or product line with evidence instead of taste — a positioning brief, deliberately different creative passes, honest screening and a decision memo.
Skill by Andrew Borden-Chisholm Claude Code, Claude apps, Codex, Gemini, Cursor
Vetted Reviewed — safe to install Runs on your machine -
SEC EDGAR MCP
Look up US public-company filings, XBRL financial statements and insider (Form 3/4/5) trades from SEC EDGAR, with a filing URL on every answer.
MCP server by Stefano Amorelli Claude apps, Claude Code, Cursor, Any agent
Vetted Reviewed — safe to install Reads your accounts -
Superforecaster scratchpad prompt (Halawi et al.)
A published, tested prompt for getting a probability on a yes/no question from an LLM — reasons for no, reasons for yes, rate each, aggregate, then give one number.
Prompt by Halawi, Zhang, Chen & Steinhardt (UC Berkeley) Any agent
Vetted Reviewed — safe to install Guidance only -
Outside-view scenario forecast prompt
A prompt that makes the model start from a base rate of similar past cases, then adjust for specifics and lay out base, upside and downside scenarios with explicit probabilities.
Prompt by skills.andrewb-c.com Any agent
Unreviewed Review pending Guidance only
Nothing matches those filters. Remove one, or try a broader word — search covers titles, summaries, publishers and tags.
Browse by category
- Business operations 9
Running, monitoring and improving a business: planning, reporting, process.
- Finance & accounting 9
Financial systems, close, reconciliation, statements.
- Investment analysis 7
Company, market and portfolio research.
- Scenario modeling & forecasting 5
What-if models, forecasts and prediction frameworks.
- Data classification 1
Labeling, tagging, extraction and taxonomy work.
- Data & analytics 4
Pipelines, SQL, dashboards and analysis.
- Backend & APIs 5
Services, APIs, databases and infrastructure code.
- Frontend 5
Web and app front ends.
- UX, UI & design systems 5
Interface design, design systems, theming and accessibility.
- MCP & integrations 25
Connecting agents to apps, data and services.
- Research & web data 7
Search, scraping, synthesis and cited reports.
- Security & trust 7
Vetting skills, secrets hygiene, code and supply-chain review.
- DevOps & observability 6
Deploys, monitoring, incidents and reliability.
- Documents & content 6
Docs, decks, spreadsheets, PDFs and writing.
- Agent building 17
Creating, testing and evaluating skills, agents and MCP servers.
- Payments & money movement 3
Tools that can create charges, invoices, payouts or transfers.
- Accounting & ERP 5
Connectors and skills for QuickBooks, Xero, NetSuite and other books of record.
- Market data 4
Prices, fundamentals, filings and economic data feeds.
- Databases & warehouses 4
SQL, schemas, migrations and warehouse access for agents.
- Testing & QA 3
Browser automation, end-to-end checks and tools for testing agents' own servers.
- Accessibility 2
Audits and guidance for interfaces everyone can use.
- Evals 2
Measuring whether a skill, prompt or agent actually works — and stays working.
- Sandboxing 0
Running agents and MCP servers in isolation so a bad tool can't reach the rest of your machine.
- Cross-platform portability 4
Making one skill or instruction file work across Claude, ChatGPT, Codex, Gemini and Cursor.
- Model selection 4
Which model to pick for a job, and what it costs.
Curated by Andrew Borden-Chisholm. Notes on building with these tools are on the blog.