toolkit: Skill for Claude Code

.agents/skills/mcp-qa/SKILL.md

mcp-qa is a skill for Claude Code, Codex from getsentry/toolkit. It costs 39 tokens per session (1,238 once invoked), scanned A, original, no licence file.

A quality-checking tool for testing changes to MCP tools with a local command-line program and real agent clients. MCP is a standard way for agents to use external tools.

In plain words
What is it for?
Use it to test MCP tool changes end to end, from the local command line through real agent clients.
Why use it?
It checks the complete interaction instead of relying only on isolated tests or simulated clients.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is getsentry/toolkit's own configuration. It tells Claude Code and Codex how to work on toolkit itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything toolkit configures →

Reuse

Borrowing it

Nothing to install: this file belongs to getsentry/toolkit. 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/getsentry/toolkit/main/.agents/skills/mcp-qa/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/getsentry/toolkit

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 mcp-qa

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/getsentry/toolkit/mcp-qa"><img src="https://agentmods.dev/badge/skills/getsentry/toolkit/mcp-qa.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,238 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00039 $0.01238
Opus 5.5 $0.00016 $0.00495
Sonnet 5.5 $0.00008 $0.00248
Haiku 4.5 $0.00004 $0.00124

Measured yesterday against content hash baac8e466d97, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-qa scanned grade A with 1 finding 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 yesterday.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s -o /dev/null -w "%{http_code}" http://localhost:5173/
.agents/skills/mcp-qa/SKILL.md · 152 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. yesterday First seen · 152 lines · 39 tokens per session scan A baac8e466d97

Subscribe to this mod's changes

mcp-qa is a skill published in the GitHub repository getsentry/toolkit (929 stars, last pushed today), with no licence file. It adds 39 tokens to every session and 1,238 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-14.

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