skill-mcp-master

skill-mcp-master is a skill for Claude Code, Codex from Jignesh-Ponamwar/skills-mcp. It costs 110 tokens per session (1,883 once invoked), scanned A, original, Apache-2.0.

A reference guide for a Skill MCP server, a service that stores and provides reusable instructions to AI coding agents through connected tools.

In plain words
What is it for?
Use it when connecting an AI agent to the Skill MCP server or deciding which of its six tools to use for discovering and running skills.
Why use it?
It explains how to find the right instruction set, load its details, and access related documents, scripts, or templates without loading everything at once.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for cline. Also seen: mentions Codex; built for cline.

Good fit Use it when connecting an AI agent to the Skill MCP server or deciding which of its six tools to use for discovering and running skills.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jignesh-ponamwar/skills-mcp/master-skill
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Jignesh-Ponamwar/skills-mcp --skill master-skill
Clone the repo
git clone --depth 1 https://github.com/Jignesh-Ponamwar/skills-mcp

Made for: Claude Code, Codex.

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 skill-mcp-master

README.md
[![agentmods](https://agentmods.dev/badge/skills/jignesh-ponamwar/skills-mcp/master-skill/github.svg)](https://agentmods.dev/skills/jignesh-ponamwar/skills-mcp/master-skill)
Your own site
<a href="https://agentmods.dev/skills/jignesh-ponamwar/skills-mcp/master-skill"><img src="https://agentmods.dev/badge/skills/jignesh-ponamwar/skills-mcp/master-skill/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 skill-mcp-master

Your own site · 80×15
<a href="https://agentmods.dev/skills/jignesh-ponamwar/skills-mcp/master-skill"><img src="https://agentmods.dev/badge/skills/jignesh-ponamwar/skills-mcp/master-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 110 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,883 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 $0.00110 $0.01883
Opus 5 $0.00055 $0.00941
Sonnet 5 $0.00022 $0.00377
Haiku 4.5 $0.00011 $0.00188

Measured 10d ago against content hash dce9a87b79e7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

skill-mcp-master 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 10d 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.

master-skill/SKILL.md · 218 lines

How it starts

The opening of the file, as written. The whole thing — 218 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill MCP - Master Usage Guide

What Is the Skill MCP?

The Skill MCP server is a self-hosted agent skills registry accessible to any MCP-compatible AI agent or tool. It stores curated, expert-authored instruction sets ("skills") and delivers them on demand through a structured 3-tier disclosure model.

Each skill contains:

Tier Content Tools
1 Frontmatter - name, description, tags, score skills_find_relevant
2 Instructions, system prompt addition skills_get_body, skills_get_options
3 Reference docs, executable scripts, asset templates skills_get_reference, skills_run_script, skills_get_asset

The Canonical 3-Step Workflow

Follow this sequence for every task where a skill might apply.

Step 1 - Discover (skills_find_relevant)

skills_find_relevant(query="<specific description of your task>", top_k=5)

Interpret scores:

  • score > 0.6 → strong match - proceed to Step 2
  • score 0.4–0.6 → possible match - read description to decide
  • score < 0.4 → no relevant skill - proceed without one

Query tips:

  • "write pytest unit tests for a Flask REST API endpoint"
  • "extract tables from a multi-page PDF and output as CSV"
  • "review Python code for security vulnerabilities"
  • "testing" (too generic - poor embedding)
  • "help me" (no task signal)

Step 2 - Load (skills_get_body)

skills_get_body(skill_id="<top result from Step 1>")

The response contains:

{
  "skill_id": "test-writer",
  "instructions": "## Testing Workflow\n1. Identify the function under test ...",
  "system_prompt_addition": "You are a senior test engineer ...",
  "tier3_manifest": {
    "references": ["TESTING-GUIDE.md", "COVERAGE-POLICY.md"],
    "scripts":    ["coverage_check.py"],
    "assets":     ["test-template.py"]
  }
}

After loading:

  1. Read and apply instructions - this is the authoritative guidance
  2. If system_prompt_addition is non-empty, incorporate it into your context
  3. Check tier3_manifest - only proceed to Step 3 if instructions reference specific files

Read the full file on GitHub · 218 lines

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. 10d ago First seen · 218 lines · 110 tokens per session scan A dce9a87b79e7

Subscribe to this mod's changes

skill-mcp-master is a skill published in the GitHub repository Jignesh-Ponamwar/skills-mcp (7 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 110 tokens to every session and 1,883 once invoked, about $0.0006 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.