mcp-builder SKILL.md skillA
mcp-builder from byerlikaya/claude-starter-kit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add byerlikaya/claude-starter-kit/mcp-builder@git:20260926.aaa5dbcPins git:20260926.aaa5dbc in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- byerlikaya/claude-starter-kit
- Path
plugin/skills/mcp-builder/SKILL.md- Versions recorded
- 7
- Latest version
- git:20260926.aaa5dbc, committed Sep 26, 2026
- First version recorded
- Jul 13, 2026
- Size
- 3,910 bytes
- Repository stars
- 26
- License
- MIT
Build a Model Context Protocol (MCP) server so an AI client can call your tools/resources: design tool schemas, pick a transport, handle errors, and test it. For exposing an API, database, or service to Claude and other clients.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# MCP Builder <!-- routing-eval reads the next line; why it sits in the body: AGENT_TEMPLATE.md --> Trigger phrases: "MCP server", "build an MCP", "model context protocol", "expose tools to Claude", "MCP tool" An MCP server exposes **tools** (actions the model can call), **resources** (data it can read), and **prompts** (reusable templates) to any MCP client over a standard protocol. The whole job is: **design a small set of clear, well-described tools, validate their inputs, return useful errors, and prove it works with a real client.** The protocol is easy; the design of the tools is what makes the server good or useless. > **Crewforth adaptation (local, .claude/):** Stack-agnostic — TypeScript (`@modelcontextprotocol/sdk`) or Python > (`mcp` / FastMCP) are the maintained SDKs; match the project's language. §4 Prohibitions apply (no AI trace in > generated code/strings). Secrets (API keys the server needs) go via env, never hardcoded — Crewforth's secret gates apply. ## Design first (the tools ARE the product) - **Few, purposeful tools** — expose *tasks*, not a 1:1 mirror of every API endpoint. "create_invoice" beats "post_v2_billing_documents". …
Read the whole file at its exact version.
How to install
mdr add byerlikaya/claude-starter-kit/mcp-builder@sha256:0a438677d82d6b42The line at the top of this page pins the label git:20260926.aaa5dbc, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_gtiesylumc4lwowk)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Jul 13, 2026 and Sep 26, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260926.aaa5dbc latest | 2026-09-26 | aaa5dbc | 3,910 B | A | view · diff |
| git:20260925.68939f0 | 2026-09-25 | 68939f0 | 3,904 B | A | view · diff |
| git:20260924.a457823 | 2026-09-24 | a457823 | 3,902 B | A | view · diff |
| git:20260920.b37a6a0 | 2026-09-20 | b37a6a0 | 4,096 B | A | view · diff |
| git:20260917.265f088 | 2026-09-17 | 265f088 | 4,100 B | A | view · diff |
| git:20260730.0bf7183 | 2026-07-30 | 0bf7183 | 3,581 B | A | view · diff |
| git:20260713.8de629b | 2026-07-13 | 8de629b | 3,302 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3910 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
byerlikaya/claude-starter-kit · 26 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gtiesylumc4lwowk GET https://markdownregistry.com/api/v1/resolve?ref=byerlikaya/claude-starter-kit/mcp-builder GET https://markdownregistry.com/api/v1/blob/0a438677d82d6b42ab864226d8a77125f3770c8dd72c18811fc741dde54a2685
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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