Tools

Lets agents create pixel art and frame animations in Aseprite: drawing, layers, palettes, dithering, outlines and onion-skin previews, with PNG, GIF and sprite sheet export, for game art and pixel illustration. Needs Aseprite, Python 3.13 and uv; runs from source.

Sentry's official remote MCP: lets coding agents query errors, issues, stack traces and performance traces, and call Seer for root-cause analysis. Sign in with OAuth, or connect to self-hosted Sentry over stdio.

Companion skill to the User Interface Wiki: 152 rules in 12 categories, from motion, easing and exit animations to UI sounds, interaction laws, prefetching and typography, for writing or reviewing web UI code, with issues listed by file:line. Needs an existing web project and Node.js to install.

250+ human-reviewed legal skills from practicing lawyers, in-house counsel and academics, mostly US and EU law: compliance, GDPR, legal research, litigation, contract review and drafting, the EU AI Act. Install all or pick one; output is a draft for a lawyer to review.

Lets agents manage Google Cloud resources in natural language through the gcloud CLI, blocking interactive and other agent-unfriendly commands by default, with configurable allow and deny lists. A preview release from Google, not an officially supported product; install gcloud and sign in first.

AWS Labs' official plugin marketplace: deploy-on-aws (architecture recommendations, cost estimates and IaC deployment), aws-serverless, aws-amplify, databases-on-aws, sagemaker-ai and more. AWS suggests Agent Toolkit for AWS for new projects.

HashiCorp's official plugin marketplace: the terraform plugin has 16 skills (configuration, modules, provider development, testing, import, Stacks and policy), and the packer plugin has 4 image-build and HCP Packer skills.

HashiCorp's official Terraform and Packer skills: write HCL in the official style, refactor modules, terraform test, provider development, Stacks and policy, plus AWS and Azure image builds.

Answers macro questions with market data: combines 13 free sources including Polymarket and Kalshi prediction markets, US Treasury yields, CFTC positioning, SEC insider trades and A-share fund flows into probability estimates, reasoning and scenarios. No API key; needs uv. Not investment advice.

Jina AI's official remote MCP: converts web pages and PDFs to Markdown, searches the web, arXiv, SSRN and images, and offers screenshots, reranking and semantic dedup. Reading tools work without a key (rate-limited); search and rerank need a Jina API key.

A monthly CFO routine for small companies and agencies: pulls bank, receivables, payroll and expense data, categorizes and reconciles it, computes month-end cash, updates forecasts and writes a management snapshot, plus a weekly cash check. Needs your own config and account data; review the results.

Google Fonts' official font compiler: builds OTF, TTF or variable fonts from Glyphs, UFO or designspace sources, and with -i interpolates each weight from the source's export settings, so type designers can let agents produce builds. Needs Python 3.10+ and font source files.

Lets agents drive a local Adobe After Effects: create compositions, add text, shape, solid and camera layers, and set keyframes and expressions, for batch intros, lower thirds and motion graphics. Needs After Effects 2022+ and Node.js; build from source and open the bridge panel in AE.

Drives desktop Excel on Windows: refresh Power Query, build pivot tables and charts, evaluate DAX and run VBA while keeping existing formulas and formatting, so finance and admin staff can automate existing reports. Needs Windows, Excel 2016+ and Node.js; no macOS.

Helps Indian resident individuals prepare income tax returns: the agent reads Form 16, AIS and more, asks about deductions, computes tax with a tested Python program, compares old and new regimes and builds a filing checklist; you pay and file yourself. AY 2026-27 only; Python 3.

Brand-building skills: start with a brand profile, then work on strategy, naming, visual identity briefs, voice and key messages, positioning and competitor brand analysis, brand audits and launch plans, plus Meta/Google ads, email and influencer playbooks. No API key needed.

Two parts: an API server on Kali Linux and an MCP bridge, letting agents run nmap, sqlmap, Metasploit, Hydra and other tools, or arbitrary terminal commands, for authorized penetration testing and CTFs. Available in Kali's official repositories.

Lets agents drive a local Photoshop: remove backgrounds, retouch portraits, color grade, batch-watermark, and export or split carousels at social media sizes; multi-step edits undo in one step. Needs Photoshop and Node.js 18+. Unofficial; sends anonymous telemetry by default (opt-out).

Distilled Apple Human Interface Guidelines reference for iOS, iPadOS, macOS, tvOS, visionOS and watchOS, loading the right rules, component specs and measurements per task. Includes a /duo workflow for adapting an iOS app to iPhone Duo and an opt-in enforce mode with independent review.

Unofficial Yahoo Finance data tool with a yahoo-finance CLI, an MCP server and an agent skill: stock quotes, price history, financials, option chains and analyst ratings. Needs Node.js 22+, no API key. The API is unofficial and may change; for research only.

Calls image and video models such as FLUX, Veo and Seedance through inference.sh's belt CLI to generate images, video, avatars and voiceovers, plus guides for thumbnails, storyboards, press releases and social copy. Needs belt and a free inference.sh account; model calls are billed per use.

Unbabel's machine-translation quality metric: comet-score rates translations per sentence and overall, XCOMET marks error spans and severity, and CometKiwi works without a reference. Good for spot-checking MT. Needs Python 3.8+; models download from Hugging Face, some need a license; GPU helps.

Interviews you on scope, pain points and brand tone, infers the visual language from existing styles, and builds five React UI variants on a temporary route with a feedback overlay. Iterates on feedback, then writes an implementation plan and deletes the temp files.

US stock research: /trading-ideas:research gathers earnings, peer valuations, unusual options and insider trades via web search and writes an analyst-style report with rating, price target and bull/bear cases. Needs a paid Claude plan. Web data can be wrong; not investment advice.