mcp-server-builder SKILL.md skillA
mcp-server-builder from onewave-ai/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add onewave-ai/claude-skills/mcp-server-builder@git:20260920.97b5147Pins git:20260920.97b5147 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- onewave-ai/claude-skills
- Path
mcp-server-builder/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260920.97b5147, committed Sep 20, 2026
- Size
- 4,723 bytes
- Repository stars
- 421
- License
- MIT
Use to build, wire up, or debug an MCP (Model Context Protocol) server that gives Claude access to an internal API, database, or SaaS tool. Trigger when the user wants Claude to connect to their own system, asks for an MCP server, needs custom tools for Claude Code or the Claude app, or an existing server's tools are not showing up.
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 Server Builder An MCP server is how Claude reaches a system it does not otherwise know about — your database, your internal API, your ops tooling. The protocol is small. Almost every real problem is a design problem: which tools to expose and what they return. ## Decide the Shape First **Local (stdio)** — runs on the user's machine, launched by the client, credentials from the local environment. Right for developer tooling and anything touching localhost or a local database. Only that machine gets it. **Remote (HTTP)** — deployed once, reached by URL, OAuth for identity. Right when a team needs it, or when the data lives in a service rather than on a laptop. Everyone gets updates the moment you deploy. Build remote when more than one person will use it. Retrofitting local-only to multi-user later means redoing auth from scratch. ## Tool Design — the part that matters Tools are an interface for a model, not a REST API. The common failure is exposing twenty thin endpoint wrappers and watching the model chain them badly. - **Name the job, not the endpoint.** `get_pipeline_board` beats `query_deals` plus `query_stages` plus `query_owners`. …
Read the whole file at its exact version.
How to install
mdr add onewave-ai/claude-skills/mcp-server-builder@sha256:938aec998d2c56cfThe line at the top of this page pins the label git:20260920.97b5147, 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_uiy3b7th27ee6spy)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 20, 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 (4723 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
onewave-ai/claude-skills · 421 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uiy3b7th27ee6spy GET https://markdownregistry.com/api/v1/resolve?ref=onewave-ai/claude-skills/mcp-server-builder GET https://markdownregistry.com/api/v1/blob/938aec998d2c56cf4f5d52123110210214fefe237196486b940d360259e9a4cb
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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