agent
fieldguide
THE FIELDGUIDE / VOL. 01TOOLS FOR AGENTS · SOURCES INCLUDED

AI skills & MCP servers

MAKETHE MATCH.

Find tools for your AI agent, matched to the job you need to do. Browse the field notes, inspect the evidence, then decide at the source.

Find your fit
61 FIELD NOTES35 SKILLS26 MCP SERVERSPUBLIC SOURCES ↗
01 / TASK MATCH

Start with the job.

Pick a task area to see relevant tools. These are editorial matches based on each tool’s documented purpose, not performance scores.

MATCHING / BUILD18

Build

Ship, inspect, and maintain software with focused agent help.

SKILLMCP BuilderSKILLSkill CreatorMCPEverything
Browse all Build tools

02 / DIRECTORY · 01—61

Explore the directory.

Search by task, inspect a field note, and open the original source.

61 SOURCE-CHECKED ENTRIES
61 resultsEDITORIAL INDEX · SOURCE CHECKED
01SKILL

Design Anthropic

Algorithmic Art

Build original generative artwork with p5.js and controlled randomness.

GOOD FORExplore visual directions or generate repeatable artwork from a code-based brief.

Checked 12 Oct 2026Read note
02SKILL

Design Anthropic

Canvas Design

Create original static artwork such as posters and visual one-pagers.

GOOD FORTurn a visual brief into a PNG or PDF composition rather than a website layout.

Checked 12 Oct 2026Read note
03SKILL

Writing Anthropic

Doc Coauthoring

Structure a collaborative writing process for specs, proposals, and decision documents.

GOOD FORYou have rough context and need a document that a new reader can follow.

Checked 12 Oct 2026Read note
04SKILL

Design Anthropic

Frontend Design

Guide deliberate typography, layout, and visual direction for web interfaces.

GOOD FORA new screen needs a distinct aesthetic that still serves its content and users.

Checked 12 Oct 2026Read note
05SKILL

Build Anthropic

MCP Builder

Plan and implement MCP servers that expose focused tools to agents.

GOOD FORConnect a service or internal API to an MCP client through a purpose-built server.

Checked 12 Oct 2026Read note
06SKILL

Build Anthropic

Skill Creator

Draft, refine, and evaluate reusable Agent Skills instructions.

GOOD FORA repeatable agent task needs a skill with clear triggers and test cases.

Checked 12 Oct 2026Read note
07SKILL

Design Anthropic

Slack GIF Creator

Produce short animated GIFs within Slack-friendly constraints.

GOOD FORA small custom reaction or announcement animation would communicate better than static art.

Checked 12 Oct 2026Read note
08SKILL

Design Anthropic

Theme Factory

Apply a consistent color and type theme to generated artifacts.

GOOD FORSeveral slides, documents, or pages should feel like one visual set.

Checked 12 Oct 2026Read note
09SKILL

Build Anthropic

Web Artifacts Builder

Assemble richer multi-component HTML artifacts with React-based tooling.

GOOD FORAn interactive artifact needs components, state, or routes beyond a single HTML file.

Checked 12 Oct 2026Read note
10SKILL

Build Anthropic

Webapp Testing

Exercise a local web app with Playwright and inspect rendered behavior.

GOOD FORA frontend change needs a visual or interaction check in a browser.

Checked 12 Oct 2026Read note
11SKILL

Build Vercel

Composition Patterns

Refactor React component APIs with composition and shared state patterns.

GOOD FORBoolean props or repeated component variants are making an interface hard to extend.

Checked 12 Oct 2026Read note
12SKILL

Build Vercel

React Best Practices

Review React and Next.js data flow, bundles, and rendering performance.

GOOD FORA new feature or slow page needs a focused performance review.

Checked 12 Oct 2026Read note
13SKILL

Build Vercel

React Native Skills

Apply mobile performance and platform patterns in React Native or Expo apps.

GOOD FORLists, animations, images, or native modules need a mobile-specific review.

Checked 12 Oct 2026Read note
14SKILL

Design Vercel

Web Design Guidelines

Audit interface code for accessibility, interaction, and visual usability patterns.

GOOD FORA finished screen needs a structured UI review before release.

Checked 12 Oct 2026Read note
15SKILL

Writing Vercel

Writing Guidelines

Review documentation and product prose for clarity and consistency.

GOOD FORA draft is technically correct but difficult to scan or act on.

Checked 12 Oct 2026Read note
16MCP SERVER

Build MCP project

Everything

A demonstration server exposing a wide range of MCP features.

GOOD FORTest an MCP client's support for tools, prompts, resources, and transports.

Checked 12 Oct 2026Read note
17MCP SERVER

Research MCP project

Fetch

Fetch web pages and convert content for an agent to read.

GOOD FORA local MCP client needs source content from public web pages.

Checked 12 Oct 2026Read note
18MCP SERVER

Data MCP project

Filesystem

Expose selected local files and folders to an MCP client.

GOOD FORAn agent should work within a specific local directory rather than the whole machine.

Checked 12 Oct 2026Read note
19MCP SERVER

Build MCP project

Git

Give an agent structured access to a Git repository.

GOOD FORAn agent needs to inspect repository history and working-tree changes.

Checked 12 Oct 2026Read note
20MCP SERVER

Research MCP project

Memory

Store and retrieve a persistent knowledge graph for an agent.

GOOD FORA local agent needs durable entities and relationships across sessions.

Checked 12 Oct 2026Read note
21MCP SERVER

Research MCP project

Sequential Thinking

Provide a structured sequence of thought steps to an MCP client.

GOOD FORYou are testing how a client handles an explicit planning tool.

Checked 12 Oct 2026Read note
22MCP SERVER

Operations MCP project

Time

Read current time and convert between time zones.

GOOD FORAn agent needs precise time-zone conversion for scheduling or logs.

Checked 12 Oct 2026Read note
23MCP SERVER

Build GitHub

GitHub MCP

Access GitHub repositories, issues, and pull requests through GitHub's own MCP server.

GOOD FORAn agent needs repository context or authorized GitHub actions inside a coding workflow.

Checked 12 Oct 2026Read note
24MCP SERVER

Build Microsoft

Playwright MCP

Let an agent inspect and interact with browser pages using Playwright.

GOOD FORA development agent needs browser interaction or exploratory UI checks.

Checked 12 Oct 2026Read note
25MCP SERVER

Operations Cloudflare

Cloudflare MCP

Connect an agent to Cloudflare account APIs and product-specific tools.

GOOD FORInvestigate or manage Cloudflare resources from a client with scoped access.

Checked 12 Oct 2026Read note
26MCP SERVER

Data Supabase

Supabase MCP

Connect an agent to selected Supabase project and database workflows.

GOOD FORExplore a project's schema or debug a Supabase integration with controlled access.

Checked 12 Oct 2026Read note
27MCP SERVER

Writing Notion

Notion MCP

Read and update Notion workspace content through authorized MCP tools.

GOOD FORA writing or research agent needs context from a Notion workspace.

Checked 12 Oct 2026Read note
28MCP SERVER

Operations Sentry

Sentry MCP

Bring Sentry issues, traces, and project context into a development agent.

GOOD FORInvestigate a production error using the event details and project history already in Sentry.

Checked 12 Oct 2026Read note
29MCP SERVER

Design Figma

Figma MCP

Provide design-file context and supported write workflows to an agent.

GOOD FORImplement a design with real frame, component, and variable context from Figma.

Checked 12 Oct 2026Read note
30MCP SERVER

Operations Stripe

Stripe MCP

Connect an agent to Stripe documentation and authorized account APIs.

GOOD FORExplore a Stripe integration or inspect account data inside a controlled workflow.

Checked 12 Oct 2026Read note
31SKILL

Design Anthropic

Brand Guidelines

Apply Anthropic's published brand palette and typography to an artifact.

GOOD FORPrepare material that specifically needs Anthropic's visual identity.

Checked 12 Oct 2026Read note
32SKILL

Writing Anthropic

Internal Comms

Draft internal updates, FAQs, and reports in consistent formats.

GOOD FORTurn project facts into a status update, leadership note, or incident summary.

Checked 12 Oct 2026Read note
33SKILL

Writing Anthropic

Document Toolkit

Create, read, and edit Word documents with layout checks.

GOOD FORProduce a formatted DOCX or modify an existing Word file.

Checked 12 Oct 2026Read note
34SKILL

Data Anthropic

PDF Toolkit

Extract, combine, create, and inspect PDF documents.

GOOD FORWork with PDF pages, forms, extracted text, or scanned content.

Checked 12 Oct 2026Read note
35SKILL

Design Anthropic

Slide Toolkit

Build or edit PowerPoint decks with visual verification.

GOOD FORCreate slides from a brief or revise an existing PPTX file.

Checked 12 Oct 2026Read note
36SKILL

Data Anthropic

Spreadsheet Toolkit

Create and revise spreadsheet files with formula and layout checks.

GOOD FORDeliver an XLSX or analyze tabular files with a spreadsheet output.

Checked 12 Oct 2026Read note
37SKILL

Build Anthropic

Claude API Guide

Use Anthropic SDK and API references while building Claude applications.

GOOD FORImplement Claude streaming, tools, caching, or model integrations.

Checked 12 Oct 2026Read note
38SKILL

Operations Vercel

Deploy to Vercel

Guide an agent through a Vercel preview or production deployment.

GOOD FORLink a web project and publish a reviewable Vercel deployment.

Checked 12 Oct 2026Read note
39SKILL

Build Vercel

React View Transitions

Add purposeful native view transitions to React interfaces.

GOOD FORAnimate route changes, shared elements, or list reordering.

Checked 12 Oct 2026Read note
40SKILL

Operations Vercel

Vercel Optimize

Investigate Vercel cost and speed using measured usage signals.

GOOD FORDiagnose expensive routes, slow responses, or unexpectedly high platform usage.

Checked 12 Oct 2026Read note
41SKILL

Build OpenAI

ASP.NET Core

Plan and implement .NET web features using current framework guidance.

GOOD FORWork on Blazor, MVC, Minimal APIs, middleware, authentication, or upgrades.

Checked 12 Oct 2026Read note
42SKILL

Build OpenAI

ChatGPT Apps

Scaffold an Apps SDK widget and its MCP-backed server contract.

GOOD FORBuild or troubleshoot a ChatGPT app with tools and a user interface.

Checked 12 Oct 2026Read note
43SKILL

Build OpenAI

CLI Creator

Turn an API or existing workflow into a reusable command-line tool.

GOOD FORExpose stable read and write commands for repeated agent work.

Checked 12 Oct 2026Read note
44SKILL

Operations OpenAI

Cloudflare Deploy

Choose and configure a Cloudflare deployment path.

GOOD FORPublish an app on Workers, Pages, or a related Cloudflare service.

Checked 12 Oct 2026Read note
45SKILL

Data OpenAI

Jupyter Notebook

Create structured notebooks for experiments and tutorials.

GOOD FORDeliver an IPYNB with reproducible analysis or explanatory cells.

Checked 12 Oct 2026Read note
46SKILL

Operations OpenAI

Netlify Deploy

Prepare and deploy a web project with Netlify CLI.

GOOD FORCreate a preview or production Netlify site from a repository.

Checked 12 Oct 2026Read note
47SKILL

Build OpenAI

Playwright Browser

Automate a browser for inspection, forms, and UI debugging.

GOOD FORCheck a real rendered flow or collect page evidence from the terminal.

Checked 12 Oct 2026Read note
48SKILL

Operations OpenAI

Render Deploy

Prepare a Render service or Blueprint from a Git-backed app.

GOOD FORHost a web service, worker, or site on Render.

Checked 12 Oct 2026Read note
49SKILL

Research OpenAI

Security Best Practices

Review supported codebases against language-specific security guidance.

GOOD FORRequest a focused security review or secure-by-default implementation advice.

Checked 12 Oct 2026Read note
50SKILL

Research OpenAI

Security Threat Model

Map assets, trust boundaries, and realistic abuse paths in a repository.

GOOD FORPrioritize mitigations for a specific application or code path.

Checked 12 Oct 2026Read note
51MCP SERVER

Operations Linear

Linear MCP

Read and update Linear issues, projects, and comments through an agent.

GOOD FORPlan work or query project status in a Linear workspace.

Checked 12 Oct 2026Read note
52MCP SERVER

Build GitLab

GitLab MCP

Access GitLab projects, issues, and merge requests from an AI client.

GOOD FORInspect or manage repository work in a GitLab instance.

Checked 12 Oct 2026Read note
53MCP SERVER

Data Neon

Neon MCP

Let an agent inspect and manage a Neon Postgres project.

GOOD FORExplore a development database or perform reviewed schema work.

Checked 12 Oct 2026Read note
54MCP SERVER

Operations Asana

Asana MCP

Query and manage Asana tasks and projects through a remote server.

GOOD FORReview assigned work or turn a plan into Asana tasks.

Checked 12 Oct 2026Read note
55MCP SERVER

Operations Datadog

Datadog MCP

Bring logs, metrics, monitors, and related observability context into an agent.

GOOD FORInvestigate a production incident with existing Datadog data.

Checked 12 Oct 2026Read note
56MCP SERVER

Data Google

Google Drive MCP

Let an agent find and interact with files in Google Drive.

GOOD FORWork with Drive documents inside an authorized Workspace account.

Checked 12 Oct 2026Read note
57MCP SERVER

Writing Google

Gmail MCP

Read mail and prepare Gmail actions through an agent.

GOOD FORFind messages or draft replies in an authorized mailbox.

Checked 12 Oct 2026Read note
58MCP SERVER

Operations Google

Google Calendar MCP

Read schedules and manage calendar events through an agent.

GOOD FORFind meeting availability or prepare event changes.

Checked 12 Oct 2026Read note
59MCP SERVER

Data Google

Google Sheets MCP

Read and change spreadsheet values and structure from an agent.

GOOD FORInspect a Sheet or apply a reviewed tabular update.

Checked 12 Oct 2026Read note
60MCP SERVER

Operations AWS

AWS MCP

Use authenticated AWS knowledge and service actions in an agent workflow.

GOOD FORInvestigate or operate AWS resources with existing IAM controls.

Checked 12 Oct 2026Read note
61MCP SERVER

Data Snowflake

Snowflake MCP

Expose governed Snowflake data tools to an AI agent.

GOOD FORAnswer questions from data already accessible in a Snowflake account.

Checked 12 Oct 2026Read note
03 / PUBLIC SIGNALS

See the footprint.
Keep the context.

Public interest can help you decide what to inspect. It cannot tell you whether a tool is safe, suitable, or good. The numbers below are dated snapshots.

INTERACTIVE / SOURCE MOSAIC

Map the footprint.

These 10 public repositories link to 48 of 61 field notes. Anthropic Skills and MCP Reference are whole collections. Choose a metric to reshape the map, then select a source for exact values.

10 OF 10 SHOWNOpen full map in a new tab
TILE AREA / GITHUB
SHOW GROUPS
Skill collection MCP source
REPOSITORY MAP / STARSSELECT A TILE ↗
AREA FOLLOWS STARSSMALL SOURCES HAVE A VISUAL FLOOR

Source: GitHub repository API ↗ · Snapshot 2026-10-09. Tile area follows the selected count, with a 4% minimum of the largest source to keep small tiles usable; color distinguishes source type and approximate intensity. These signals do not measure tool performance.

GITHUB / REPOSITORIES

By stars

★

Ranked repositories. Collection stars belong to the whole collection, not each listed skill or server.

  1. 01
    anthropics/skills180,063 ★
    Collection · 17 listed entries
  2. 02
    modelcontextprotocol/servers91,091 ★
    Collection · 7 listed entries
  3. 03
    microsoft/playwright-mcp37,953 ★
    Dedicated repository
  4. 04
    github/github-mcp-server33,463 ★
    Dedicated repository
  5. 05
    vercel-labs/agent-skills32,105 ★
    Collection · 8 listed entries
  6. 06
    openai/skills27,954 ★
    Collection · 10 listed entries
  7. 07
    makenotion/notion-mcp-server4,664 ★
    Dedicated repository
  8. 08
    supabase/mcp2,944 ★
    Dedicated repository
  9. 09
    cloudflare/mcp929 ★
    Collection · 1 listed entry
  10. 10
    getsentry/toolkit918 ★
    Collection · 1 listed entry

Snapshot 2026-10-09 · GitHub repository API ↗

NPM / PACKAGES

By downloads

↓

Only tools with a verified npm package. Downloads are not unique users or installed agents.

  1. 01
    Playwright MCP25,211,893 ↓
    @playwright/mcpSource ↗
  2. 02
    Filesystem3,053,248 ↓
    @modelcontextprotocol/server-filesystemSource ↗
  3. 03
    Everything1,080,765 ↓
    @modelcontextprotocol/server-everythingSource ↗
  4. 04
    Notion MCP666,753 ↓
    @notionhq/notion-mcp-serverSource ↗
  5. 05
    Sequential Thinking588,267 ↓
    @modelcontextprotocol/server-sequential-thinkingSource ↗
  6. 06
    Memory513,946 ↓
    @modelcontextprotocol/server-memorySource ↗
  7. 07
    Sentry MCP462,111 ↓
    @sentry/mcp-serverSource ↗
  8. 08
    Supabase MCP450,365 ↓
    @supabase/mcp-server-supabaseSource ↗
  9. 09
    Stripe MCP59,172 ↓
    @stripe/mcpSource ↗
  10. 10
    Neon MCP8,171 ↓
    @neondatabase/mcp-server-neonSource ↗

2026-08-23 to 2026-09-21 · API rechecked 2026-10-09 · npm download API ↗

These lists rank source activity only. They do not rank tool quality, individual items inside a collection, or compatibility with your agent.

BEFORE YOU CONNECT

Know what
you’re adding.

01 / INSTRUCTIONS

Agent Skills

Instructions and supporting files help an agent approach a job. They do not automatically provide external access.

Read the format spec ↗
02 / CONNECTIONS

MCP servers

Servers expose tools and data. Check the permissions and the environment before you connect one.

Read the MCP introduction ↗