mcp-server-design SKILL.md skillA
mcp-server-design from fabioc-aloha/alex_skill_mall is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add fabioc-aloha/alex_skill_mall/mcp-server-design@git:20260914.0426f9ePins git:20260914.0426f9e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- fabioc-aloha/alex_skill_mall
- Path
plugins/ai-agents/mcp-toolkit/skills/mcp-server-design/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260914.0426f9e, committed Sep 14, 2026
- Size
- 5,194 bytes
- Repository stars
- 5
- License
- MIT
Decide whether to build an MCP server, which protocol primitives to expose, and how to design tools an agent can actually use. Covers transports, language choice, and the tools/resources/prompts split.
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
# Design an MCP Server The design decides whether the server is usable. Everything after it is typing. ## Should This Be a Server? Check whether one already exists. The [servers directory](https://github.com/modelcontextprotocol/servers) lists reference and community implementations, and most vendors with an API now ship one. Build your own when you are wrapping an internal API, or a third-party service whose published server does not cover what you need. Wrapping a public API that already has a maintained server means inheriting its maintenance burden for no new capability. Before designing tools, answer one question in a sentence: **what task should an agent be able to finish that it cannot finish today?** If the answer is "call our API", the design will drift into a thin HTTP proxy with fifty tools and no shape. ## What a Server Can Expose Three primitives, distinguished by who decides to use them. | Primitive | Controlled by | Use for | | --- | --- | --- | | **Tools** | The model | Actions the agent chooses: query, create, update | | **Resources** | The host application | Addressable data read by URI: files, records, logs | …
Read the whole file at its exact version.
How to install
mdr add fabioc-aloha/alex_skill_mall/mcp-server-design@sha256:b3378d103887ac20The line at the top of this page pins the label git:20260914.0426f9e, 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_rlvyugh2xv65r3da)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 14, 2026.
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 (5194 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
fabioc-aloha/alex_skill_mall · 5 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rlvyugh2xv65r3da GET https://markdownregistry.com/api/v1/resolve?ref=fabioc-aloha/alex_skill_mall/mcp-server-design GET https://markdownregistry.com/api/v1/blob/b3378d103887ac204fed32ed682249059b5a227d384c413d5342214b8dc05a81
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.