Tools

Lets agents read and write Xero accounting data: contacts, chart of accounts, invoices, payments, journals and reports such as profit and loss; payroll queries work only for NZ and UK organisations. Maintained by Xero; create a Custom Connection in the developer portal.

Helps HR and founders write employer brand content: careers page copy, company values docs, day-in-the-life posts, team stories and engineering blogs, backing every claim with a concrete policy or real story instead of fluff. Part of startup-founder-skills; no account needed.

Helps hiring managers design structured interviews for a role and level: 4-6 competencies, rounds, a question bank with follow-ups and answer criteria, 1-4 scorecards, a take-home task, debriefs and bias safeguards. Prompt-only; startup-focused, pairs with the startup-context skill.

Helps hiring managers write or rewrite job descriptions: first clarify what problem the role solves, then follow a fixed structure, cut buzzwords, inflated requirements and gendered wording, and prompt for a salary range. Startup-focused; best with company info from the startup-context skill.

Helps HR and founders write outreach to passive candidates: LinkedIn messages, cold emails and referral requests, drafting a first message and 2-3 follow-ups around personalization, relevance and a call to action. Drafts only, never sends; startup-focused.

50 skills for founders covering fundraising (pitch materials, investor research, data rooms), sales outreach, PRDs, hiring (JDs, interview questions) and legal docs (privacy policy, terms of service, contract review). Set up startup-context once; have a lawyer check legal output.

Describe the video you want and the agent builds a reproducible edit project: footage, storyboard, bilingual subtitles, transitions, intro and outro, rendering and QA. Needs Node.js and ffmpeg; AI voice and assets need ListenHub. Science mode uses the author's voice and outro by default.

Email marketing skill: audits your setup, builds welcome, abandoned-cart and other flows from a brief, writes in your brand voice, diagnoses spam issues and checks GDPR compliance before sending, plus 19 industry playbooks. Klaviyo or Mailchimp control needs an MCP; get compliance reviewed.

Japan tax return (kakutei shinkoku) plugin for sole proprietors and employees: bookkeeping, receipt OCR, year-end statements, income and consumption tax, and browser automation for the NTA filing site. Japan only; needs Python 3.11+, uv and Claude in Chrome or Playwright. Review before filing.

Lets agents read delivery data and change history for Facebook and Instagram ad accounts, campaigns, ad sets and creatives to analyze performance and spot underperforming ads; read-only. Needs a Meta access token (the GoMarble installer can generate one); runs from source with Python.

Official MCP for Plane, the open-source project management tool: lets agents read and manage projects, work items, cycles, modules and releases, with PQL queries. Use the hosted server with OAuth, or run locally via uvx with an API key; works with self-hosted Plane.

Leads a visible, verified code walkthrough in Neovim: confirms real behavior by running code, then authors one immutable Navi tour with short notes the viewer steps through, optionally recorded with OBS. Requires Terminal Control (termctrl), Neovim 0.10+ and navi.nvim.

Opinionated guide to production TypeScript with Effect v4: Effect.gen workflows, Context.Service and Layer services, Schema models and typed errors, Config, Schedule retries, Cache, Stream, HttpClient and deterministic tests, plus patterns to avoid. Requires Effect v4.

Uses Photoshop's COM interface so agents can create, open and save documents, add text and solid color layers, read the layer structure and run JSX scripts, handy for batch social graphics through chat. Windows only; needs Photoshop, Python 3.10+ and uv.

ComfyUI's official MCP: lets agents drive local ComfyUI image and video workflows, list installed nodes, models and templates, submit jobs and fetch results, and start or stop ComfyUI. Needs a machine that can run ComfyUI (usually a GPU) and comfy-cli; partner models consume Comfy credits.

Railway's official plugin, bundling the use-railway skill and hosted Railway MCP so agents can create projects, deploy services, set environment variables and databases, and check logs and metrics to debug deployments. Needs a Railway account.

19 skills for technical founders and early sellers handling go-to-market alone: answer 5 questions for a founder brief, get a staged GTM roadmap, then work through ICP, positioning, first users, launch, pricing and founder-led sales. Aimed mainly at developer tools and AI products.

Has the agent use the @sveltejs/mcp CLI via npx whenever it creates, edits or analyzes Svelte components or modules: list and fetch Svelte 5 and SvelteKit docs sections, and run svelte-autofixer to catch issues and validate every component before finishing. Official Svelte skill.

Connects the open-source ERPNext to AI assistants: query invoices, customers and inventory, run reports and handle approvals in plain language, with permissions following ERPNext accounts and every call audit-logged. An admin must install the app first; have finance check the analysis.

Vercel's official plugin: a knowledge graph of the Vercel ecosystem, dozens of skills, expert subagents for deployment and performance, and commands for deploys, env vars and project status, covering Next.js, the AI SDK, storage and CI/CD. Needs Node.js 18+ and Bun; telemetry is opt-out.

CFO advisor skill from Every for bootstrapped small companies: helps founders model cash runway, burn rate and unit economics (LTV:CAC, payback), assess hiring ROI, and build 13-week cash flow and scenario forecasts. Framework-only, no account; check big decisions with a pro.

QuantConnect's official CLI drives the open-source LEAN engine locally or in the cloud to download data, backtest and optimize quant strategies and deploy them live. Requires a paid-tier QuantConnect organization; strategies in Python or C#; local runs need Docker. Get expert review.

Todoist's official td CLI: quickly add tasks in natural language, view Today, Inbox and project to-dos, authorize read-only if you like, and install companion skills for Claude Code, Codex and others in one step. Needs a Todoist account.

Postman's official MCP server: lets agents manage workspaces, collections, environments and API specs, help with API testing and generate client code from API definitions. The remote version uses OAuth; the local version needs a Postman API key.