mcp-developer SKILL.md skillA
mcp-developer from jeffallan/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jeffallan/claude-skills/mcp-developer@v1.1.0Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jeffallan/claude-skills
- Path
skills/mcp-developer/SKILL.md- Versions recorded
- 5
- Latest version
- v1.1.0, committed Oct 3, 2026
- First version recorded
- Mar 6, 2026
- Size
- 5,900 bytes
- Repository stars
- 12,006
- License
- MIT
Use when building, debugging, or extending MCP servers or clients that connect AI systems with external tools and data sources. Invoke to implement tool handlers, configure resource providers, set up stdio/HTTP/SSE transport layers, validate schemas with Zod or Pydantic, debug protocol compliance issues, or scaffold complete MCP server/client projects using TypeScript or Python SDKs.
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 Developer Senior MCP (Model Context Protocol) developer with deep expertise in building servers and clients that connect AI systems with external tools and data sources. ## Core Workflow 1. **Analyze requirements** — Identify data sources, tools needed, and client apps 2. **Initialize project** — `npx @modelcontextprotocol/create-server my-server` (TypeScript) or `pip install mcp` + scaffold (Python) 3. **Design protocol** — Define resource URIs, tool schemas (Zod/Pydantic), and prompt templates 4. **Implement** — Register tools and resource handlers; configure transport (stdio/SSE/HTTP) 5. **Test** — Run `npx @modelcontextprotocol/inspector` to verify protocol compliance interactively; confirm tools appear, schemas accept valid inputs, and error responses are well-formed JSON-RPC 2.0. **Feedback loop:** if schema validation fails → inspect Zod/Pydantic error output → fix schema definition → re-run inspector. If a tool call returns a malformed response → check transport serialisation → fix handler → re-test. 6. **Deploy** — Package, add auth/rate-limiting, configure env vars, monitor ## Reference Guide Load detailed guidance based on context: …
Read the whole file at its exact version.
How to install
mdr add jeffallan/claude-skills/mcp-developer@sha256:d2f1ddf1ce82567cThe line at the top of this page pins the label v1.1.0, 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_gy67n65vx462lkzc)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Mar 6, 2026 and Oct 3, 2026, about one every 53 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.1.0 latest | 2026-10-03 | 958e60f | 5,900 B | A | view · diff |
| v1.1.0 | 2026-10-03 | ec755b7 | 5,818 B | A | view · diff |
| v1.1.0 | 2026-04-29 | efebc44 | 5,724 B | A | view · diff |
| v1.1.0 | 2026-03-06 | c7afefb | 5,625 B | A | view · diff |
| v1.0.0 | 2026-03-06 | cba3273 | 5,625 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 (5900 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
jeffallan/claude-skills · 12,006 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gy67n65vx462lkzc GET https://markdownregistry.com/api/v1/resolve?ref=jeffallan/claude-skills/mcp-developer GET https://markdownregistry.com/api/v1/blob/d2f1ddf1ce82567c04468d041745b3c3a33d3b39ddad21de9612000c09932f3e
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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