csharp-sdk: Skill for Claude Code

.github/skills/verify-release/SKILL.md

verify-release is a skill for Claude Code, Codex from modelcontextprotocol/csharp-sdk. It costs 87 tokens per session (2,495 once invoked), scanned A, original, no licence file.

A release-checking workflow for the C# MCP SDK. It monitors release and documentation publishing jobs and checks the package listing and versioned documentation after release.

In plain words
What is it for?
Use it after publishing a GitHub release to verify the NuGet package, release workflows, and versioned documentation.
Why use it?
It helps confirm that a published release is available in both the package registry and its documentation site.

Skill for Claude CodeCodex ✓ vendor

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

This is modelcontextprotocol/csharp-sdk's own configuration. It tells Claude Code and Codex how to work on csharp-sdk 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 csharp-sdk configures →

Reuse

Borrowing it

Nothing to install: this file belongs to modelcontextprotocol/csharp-sdk. 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/modelcontextprotocol/csharp-sdk/main/.github/skills/verify-release/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/modelcontextprotocol/csharp-sdk

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 verify-release

README.md
[![agentmods](https://agentmods.dev/badge/skills/modelcontextprotocol/csharp-sdk/verify-release/github.svg)](https://agentmods.dev/skills/modelcontextprotocol/csharp-sdk/verify-release)
Your own site
<a href="https://agentmods.dev/skills/modelcontextprotocol/csharp-sdk/verify-release"><img src="https://agentmods.dev/badge/skills/modelcontextprotocol/csharp-sdk/verify-release/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 verify-release

Your own site · 80×15
<a href="https://agentmods.dev/skills/modelcontextprotocol/csharp-sdk/verify-release"><img src="https://agentmods.dev/badge/skills/modelcontextprotocol/csharp-sdk/verify-release.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,495 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 42
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 $0.00087 $0.02495
Opus 5.5 $0.00035 $0.00998
Sonnet 5.5 $0.00017 $0.00499
Haiku 4.5 $0.00009 $0.00249

Measured 1mo ago against content hash 48ec4e3193d1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

verify-release 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 1mo 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/skills/verify-release/SKILL.md · 198 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. 1mo ago First seen · 198 lines · 87 tokens per session scan A 48ec4e3193d1

Subscribe to this mod's changes

verify-release is a skill published in the GitHub repository modelcontextprotocol/csharp-sdk (4,597 stars, last pushed today), with no licence file. It adds 87 tokens to every session and 2,495 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-08-30.

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