Tools

Turns ComfyUI workflows into MCP tools with no code, covering generation and conversion across text, image, speech and video; works with local ComfyUI or RunningHub in the cloud. Start the server with uvx pixelle and configure an LLM first.

A large skill library for non-engineering teams: 372 skills covering project management, marketing, executive advisory, legal (NDA triage, contract review, privacy, DPIAs), SOC 2 and GDPR compliance, HR and finance. Add it from the Claude desktop plugin page. Have legal output reviewed.

ComfyUI's official CLI: install and launch ComfyUI in one step, manage custom nodes and model downloads, and run image and video workflows, with --json output on every command for agents. Can also submit jobs to paid Comfy Cloud.

Graph database MCP server from Neo4j Labs: reads the graph schema and runs read and write Cypher queries, with read-only mode, query timeouts and response token limits. Needs a Neo4j instance with the APOC plugin enabled.

100+ tools that let agents drive COMSOL Multiphysics: build models, set geometry and physics (heat transfer, fluids, electrostatics, solid mechanics), mesh, solve and export results; the accompanying paper is in Neurocomputing. Needs licensed COMSOL 5.x/6.x, Python and Java; install from the repo.

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.

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.

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.

50+ skills for Amazon sellers: product and keyword research, listings and A+ copy, PPC, FBA fees and profit, and tariff estimates. Free, no API key; a few skills run bundled scripts on public Amazon data and need Python. Tariff and compliance output needs professional review.

Product management library with 68 skills across discovery, definition, development, delivery, measurement and iteration: hypotheses, PRDs, user stories, OKRs, experiment design and design sprints, plus 200+ sample outputs and chainable workflows. Also installs as a Claude Code plugin.

Official from LINE: connects to a LINE Official Account through the Messaging API to push or broadcast text and Flex messages, manage rich menus, and look up followers and user profiles. Needs a channel access token; currently in preview.

Skills distilled from 15 startup and marketing classics such as The Lean Startup, The Mom Test and Crossing the Chasm, for customer interviews, positioning, pricing, sales and acquisition. A diagnostic skill helps pick the right framework. Just ask once installed.

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.

A research plugin for Claude Code: commands like /omp:survey, /omp:experiment and /omp:write chain literature review, topic selection, experiments, writing and self-review, with 5 specialized agents and 34 research skills that remember project progress across sessions. Experiments lean toward ML.

Open-source marketing toolkit with 78 skills for SEO audits, blog and landing-page copy, email sequences, social posting, ad campaigns and competitor analysis. Basic use needs no keys; pulling data from Semrush, GA4 or HubSpot, or publishing automatically, needs the matching API keys.

The five-agent PaperOrchestra pipeline (outline, figures, literature review, section writing, polishing) as skills: turns research ideas, experiment logs and a conference template into a LaTeX paper and checks citations via Semantic Scholar. Needs Python; verify the draft yourself.

Official SonarSource server: connects to SonarQube Server or Cloud so agents can query code issues, quality gates, security hotspots and dependency risks, and analyze file contents directly. Needs a SonarQube token; Docker is the recommended way to run it.

Official Firecrawl skill: drives the Firecrawl CLI to search, scrape, map site URLs, batch-crawl, interact with pages and monitor changes, returning LLM-ready Markdown. Search and scrape have a rate-limited free tier; crawling and monitoring need an account or self-hosted instance.

Firecrawl's official CLI: scrape, search, map and crawl sites and interact with pages in a browser from the terminal, with Markdown output; can also install companion skills for coding agents. Needs a Firecrawl account or API key, or point it at a self-hosted instance.

15 marketing and growth skills for founders and small teams: SOPs, go-to-market plans, next growth moves, competitive intel, pricing, cold email outreach, landing page CRO, PRDs, and X and LinkedIn posts. Add a company context file to your project for output that fits your business.

Lets AI draw lines, create layers, insert blocks, add dimensions and export DXF or PDF in AutoCAD LT, for batch edits. Needs AutoCAD LT 2024+ on Windows, Python and uv; after cloning, load the bundled LISP script with APPLOAD. Can also generate DXF headlessly without AutoCAD.

Lets agents read and write Things 3 on the Mac (Inbox, Today, projects and tags), turning action items from a chat into tasks or walking you through a weekly review. Needs Things 3 (paid) with Things URLs enabled in settings, plus uv.