mcp-to-skill-converter

mcp-to-skill-converter is a skill for Claude Code from bjornslib/mcp-to-uber-skills-converter. It costs 72 tokens per session (1,646 once invoked), scanned A, original, MIT.

A converter that turns MCP server configurations into agent skills. MCP servers connect agents to outside tools, while skills load instructions only when needed.

In plain words
What is it for?
Use it to list MCP servers, convert one server, or batch-convert compatible stdio, HTTP, and SSE servers from a configuration file.
Why use it?
It can reduce the amount of connection detail kept in the agent’s working context and supports converting compatible server types.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python .claude/skills/mcp-skills/executor.py --skill <skill-name> --list.

Part of the mcp-skills-plugin plugin — 1 skill, 1 hook shipped together

Good fit Use it to list MCP servers, convert one server, or batch-convert compatible stdio, HTTP, and SSE servers from a configuration file.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/bjornslib/mcp-to-uber-skills-converter
agentmods
npx agentmods add skills/bjornslib/mcp-to-uber-skills-converter/mcp-to-skill-converter

Made for: Claude Code.

Or install mcp-skills-plugin, the plugin that ships this one along with the rest of its 1 skill, 1 hook.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for mcp-to-skill-converter

README.md
[![agentmods](https://agentmods.dev/badge/skills/bjornslib/mcp-to-uber-skills-converter/mcp-to-skill-converter/github.svg)](https://agentmods.dev/skills/bjornslib/mcp-to-uber-skills-converter/mcp-to-skill-converter)
Your own site
<a href="https://agentmods.dev/skills/bjornslib/mcp-to-uber-skills-converter/mcp-to-skill-converter"><img src="https://agentmods.dev/badge/skills/bjornslib/mcp-to-uber-skills-converter/mcp-to-skill-converter/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for mcp-to-skill-converter

Your own site · 80×15
<a href="https://agentmods.dev/skills/bjornslib/mcp-to-uber-skills-converter/mcp-to-skill-converter"><img src="https://agentmods.dev/badge/skills/bjornslib/mcp-to-uber-skills-converter/mcp-to-skill-converter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,646 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00072 $0.01646
Opus 5 $0.00036 $0.00823
Sonnet 5 $0.00014 $0.00329
Haiku 4.5 $0.00007 $0.00165

Measured 12d ago against content hash 3f9e93ba6517, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

mcp-to-skill-converter scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (mcp_to_skill.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/mcp-to-skill-converter/SKILL.md · 206 lines

How it starts

The opening of the file, as written. The whole thing — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MCP to Skill Converter

Convert any MCP server into a Claude Skill with progressive disclosure pattern, reducing context usage by 90%+.

When to Use This Skill

  • Converting MCP servers to skills for context efficiency
  • Listing available MCP servers in a project
  • Batch converting multiple MCP servers
  • Creating skills from .mcp.json configuration

Quick Commands

All commands run from project root where the plugin is installed.

List Available Servers

python ${PLUGIN_DIR}/skills/mcp-to-skill-converter/mcp_to_skill.py --list

Shows all MCP servers with compatibility status (stdio, http, and sse types are compatible).

Convert Single Server (auto-outputs to mcp-skills/)

python ${PLUGIN_DIR}/skills/mcp-to-skill-converter/mcp_to_skill.py --name <server-name>

Example:

python ${PLUGIN_DIR}/skills/mcp-to-skill-converter/mcp_to_skill.py --name github
# Outputs to: .claude/skills/mcp-skills/github/
# Automatically removes github from .mcp.json
# Updates mcp-skills/index.json

Convert All Compatible Servers

python ${PLUGIN_DIR}/skills/mcp-to-skill-converter/mcp_to_skill.py --all
# Converts all compatible servers (stdio, http, sse) to mcp-skills/

Custom Output Directory

python ${PLUGIN_DIR}/skills/mcp-to-skill-converter/mcp_to_skill.py --name github --output-dir /custom/path

Specify Custom .mcp.json

python ${PLUGIN_DIR}/skills/mcp-to-skill-converter/mcp_to_skill.py --mcp-json /path/to/.mcp.json --name github --output-dir ./skills

CLI Options

Option Description
--list List all servers with compatibility info
--name NAME Convert specific server by name
--all Convert all compatible servers
--output-dir PATH Output directory for generated skill(s)
--mcp-json PATH Path to .mcp.json (auto-discovers if not specified)
--mcp-config PATH [Legacy] Direct MCP config JSON file

Server Compatibility

Read the full file on GitHub · 206 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 206 lines · 72 tokens per session scan A 3f9e93ba6517

Subscribe to this mod's changes

mcp-to-skill-converter is a skill published in the GitHub repository bjornslib/mcp-to-uber-skills-converter (2 stars, last pushed 8mo ago), licensed MIT. It adds 72 tokens to every session and 1,646 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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