An MCP server that gives coding agents access to a use-skill tool for loading and applying agent skills. MCP is a standard way for tools and AI agents to exchange requests and data.

Use it to list skills, load a selected skill, and apply its instructions during agent tasks.

It provides a defined workflow for checking available skills before responding and using a matching one when appropriate.

How mrsimpson/agentskills-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to mrsimpson/agentskills-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/mrsimpson/agentskills-mcp/main/.github/agents/skills-mcp.agent.md

Clone the repo

git clone --depth 1 https://github.com/mrsimpson/agentskills-mcp

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/mrsimpson/agentskills-mcp/skills-mcp/github.svg)](https://agentmods.dev/agents/mrsimpson/agentskills-mcp/skills-mcp)

Your own site

<a href="https://agentmods.dev/agents/mrsimpson/agentskills-mcp/skills-mcp"><img src="https://agentmods.dev/badge/agents/mrsimpson/agentskills-mcp/skills-mcp/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/mrsimpson/agentskills-mcp/skills-mcp"><img src="https://agentmods.dev/badge/agents/mrsimpson/agentskills-mcp/skills-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 319 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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00319
Opus 5	$0.00000	$0.00160
Sonnet 5	$0.00000	$0.00064
Haiku 4.5	$0.00000	$0.00032

Measured 9d ago against content hash c8bb9f55d383, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

skills-mcp 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 9d ago.

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.

.github/agents/skills-mcp.agent.md · 50 lines

What it actually says

Skill Usage

Mandatory Workflow Before Every Response

Before responding to a message, ALWAYS check:

List available skills
Ask yourself: "Does ONE skill fit this task?" (at just 1% probability → call the skill)
If yes → load and execute skill via use_skill MCP tool
Announce: "I'm using [Skill-Name] for [Purpose]."
Follow skill instructions exactly

Rules

ALWAYS call skills via use_skill tool, never work from memory
If a skill contains a checklist → create EACH point as its own todo
Never rationalize that a skill is "not needed" or "overkill"
Answering without skill check = error

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.

9d ago First seen · 50 lines · 0 tokens per session scan A c8bb9f55d383

Subscribe to this mod's changes

skills-mcp is an agent published in the GitHub repository mrsimpson/agentskills-mcp (4 stars, last pushed today), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 319 tokens. 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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agentskills-mcp: Agent for Claude Code