ls-mcp-server-builder SKILL.md skillA
ls-mcp-server-builder from cruxexperts/localsetup is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cruxexperts/localsetup/ls-mcp-server-builder@v1.2Pins v1.2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cruxexperts/localsetup
- Path
ls/skills/ls-mcp-server-builder/SKILL.md- Versions recorded
- 1
- Latest version
- v1.2, committed Oct 21, 2026
- Size
- 5,076 bytes
- Repository stars
- 6
- License
- a license file GitHub does not identify
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (MCPServer) or Node/TypeScript (MCP SDK).
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 Development Guide Use this skill when designing, implementing, or evaluating an MCP server for an external API or service. Keep the main workflow short, then load the detailed reference that matches the implementation language or evaluation task. ## Load First - MCP protocol: fetch `https://modelcontextprotocol.io/llms-full.txt` - [MCP best practices](./references/mcp_best_practices.md) - Python SDK docs: fetch `https://raw.githubusercontent.com/modelcontextprotocol/python-sdk/main/README.md` - TypeScript SDK docs: fetch `https://raw.githubusercontent.com/modelcontextprotocol/typescript-sdk/main/README.md` ## Workflow ### 1. Research and Plan - Read the target service API docs: auth, rate limits, pagination, errors, endpoints, schemas, and destructive operations. - Design workflow-level tools instead of thin endpoint wrappers. - Prefer high-signal outputs, stable human-readable IDs, and explicit `concise` or `detailed` response modes. - Plan shared request helpers, pagination, formatting, input validation, authentication, and actionable error messages before writing tools. - Mark read-only, destructive, idempotent, and open-world behavior with MCP tool …
Read the whole file at its exact version.
How to install
mdr add cruxexperts/localsetup/ls-mcp-server-builder@sha256:808dde353f4eb872The line at the top of this page pins the label v1.2, 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_idnuow22ryhap4hf)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 21, 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 (5076 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
cruxexperts/localsetup · 6 stars · license a license file GitHub does not identify · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_idnuow22ryhap4hf GET https://markdownregistry.com/api/v1/resolve?ref=cruxexperts/localsetup/ls-mcp-server-builder GET https://markdownregistry.com/api/v1/blob/808dde353f4eb872fd4b6536cf8fd1cba8202df8f4750fba0face88fb71f810a
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.