Official agent skill

MCP SDK Tier Audit

by modelcontextprotocol in modelcontextprotocol/conformance

Comprehensive tier assessment for an MCP SDK repository against SEP-1730.

OfficialCustom licenceAuto-check passedMobile

Install MCP SDK Tier Audit

skills CLI
$ npx skills add modelcontextprotocol/conformance --skill mcp-sdk-tier-audit -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install modelcontextprotocol/conformance mcp-sdk-tier-audit --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/modelcontextprotocol/conformance.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/mcp-sdk-tier-audit .claude/skills/mcp-sdk-tier-audit && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
mcp-sdk-tier-audit
GitHub stars
129
Token cost
~4.4k tokens
SKILL.md length
1,857 words
Files
7 (incl. references)
Skills in repo
3
Repo updated
First seen
Licence
Custom licence

At a glance

Comprehensive tier assessment for an MCP SDK repository against SEP-1730.

  • Works in 6 steps: Pre-flight Checks → Parse Arguments → Run the Deterministic Scorecard → …
  • Tasks that involve MCP servers
  • SKILL.md covers Step 0: Pre-flight Checks, Step 1: Parse Arguments, Step 2: Run the Deterministic… and Step 3: Launch Parallel…, plus 4 more sections
  • Calls gh, git and npm

What it does

MCP SDK Tier Audit is an agent skill from modelcontextprotocol/conformance, published by the product's own GitHub organization. Comprehensive tier assessment for an MCP SDK repository against SEP-1730. Produces tier classification (1/2/3) with evidence table, gap list, and remediation guide. Works for any official MCP SDK (TypeScript, Python, Go, C, Java, Kotlin, PHP, Swift, Rust, Ruby).

Its SKILL.md is about 4.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files (for example `README.md`, `references/docs-coverage-prompt.md` and `references/feature-list.md`).

It sits in Mobile, covering MCP servers, Android development and iOS development. It works with Model Context Protocol, TypeScript, C# and Python. The repository describes itself as: Conformance Tests for MCP.

When your agent uses it

  • Tasks that involve MCP servers
  • Tasks that involve Android development
  • Tasks that involve iOS development

Example prompts

  • “/mcp-sdk-tier-audit”

Requirements

  • Node.js

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. Pre-flight Checks
  2. Parse Arguments
  3. Run the Deterministic Scorecard
  4. Launch Parallel Evaluations
  5. Compute Final Tier
  6. Generate Output

What it can do on your machine

Read from SKILL.md and the folder at commit c37eec8. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • gh
    • git
    • npm
    • curl
    • npx
    • node

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use gh, git, npm, curl and npx, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

MCP SDK Tier Audit loads about 4.4k tokens when it runs, and up to ~12k if it reads all its reference files. Until then it costs about 71 tokens; SKILL.md has 1,857 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~71
When it runs · the whole SKILL.md, loaded when a task matches
~4.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~12k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,857 words (~4,352 tokens).

“You are performing a comprehensive tier assessment for an MCP SDK repository against SEP-1730 (the SDK Tiering System). Your goal is to produce a definitive tier classification (Tier 1, 2, or 3) backed by evidence.”

— opening of SKILL.md by modelcontextprotocol, Custom licence
name
mcp-sdk-tier-audit
argument-hint
<local-path> [conformance-server-url] [client-cmd] [--requirements <revisions>] [--branch <branch>]

Read the full SKILL.md on GitHub

Files

SKILL.md and 6 other files (references) in .claude/skills/mcp-sdk-tier-audit of modelcontextprotocol/conformance.

  • SKILL.md
  • README.md
  • references/docs-coverage-prompt.md
  • references/feature-list.md
  • references/policy-evaluation-prompt.md
  • references/report-template.md
  • references/tier-requirements.md

Open the folder on GitHubat commit c37eec8

Compare with similar skills

MCP SDK Tier Audit next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

MCP SDK Tier Audit compared with similar skills
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MCP SDK Tier Audit this skillmodelcontextprotocol/conformance129—~4.4kAutomated safety check: PassCustom licence
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Healthmd CLI QACodyBontecou/health-md230—~4kAutomated safety check: PassAGPL-3.0
Supercovsupercorp-ai/supercov1481 repos~415Automated safety check: PassMIT
Fory Version Bumpapache/fory4.6k—~1.1kAutomated safety check: PassApache-2.0

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Categories

Questions about MCP SDK Tier Audit

What does MCP SDK Tier Audit do?

Comprehensive tier assessment for an MCP SDK repository against SEP-1730. MCP SDK Tier Audit is an agent skill from modelcontextprotocol/conformance, published by the product's own GitHub organization. Comprehensive tier assessment for an MCP SDK repository against SEP-1730.

When should I use MCP SDK Tier Audit?

MCP SDK Tier Audit fits situations like: tasks that involve MCP servers; tasks that involve Android development; tasks that involve iOS development.

How do I install MCP SDK Tier Audit in Claude Code?

Run `npx skills add modelcontextprotocol/conformance --skill mcp-sdk-tier-audit -a claude-code`. Or copy the skill folder (.claude/skills/mcp-sdk-tier-audit in modelcontextprotocol/conformance) into .claude/skills/mcp-sdk-tier-audit in your project. Claude Code loads it when a task matches its description.

How do I install MCP SDK Tier Audit in Codex?

Run `npx skills add modelcontextprotocol/conformance --skill mcp-sdk-tier-audit -a codex`. Or copy the skill folder (.claude/skills/mcp-sdk-tier-audit in modelcontextprotocol/conformance) into .agents/skills/mcp-sdk-tier-audit in your project. Codex loads it when a task matches its description.

Can I use MCP SDK Tier Audit in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add modelcontextprotocol/conformance --skill mcp-sdk-tier-audit -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mcp-sdk-tier-audit, .gemini/skills/mcp-sdk-tier-audit, .github/skills/mcp-sdk-tier-audit and .opencode/skills/mcp-sdk-tier-audit in your project.

What does MCP SDK Tier Audit need to run?

Going by SKILL.md and its folder, MCP SDK Tier Audit needs the command-line tools its instructions call (gh, git, npm, curl, npx and node). Our summary lists: Node.js.

Does MCP SDK Tier Audit access the network?

SKILL.md contains no URLs. Its commands use gh, git, npm, curl and npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is MCP SDK Tier Audit safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does MCP SDK Tier Audit use?

MCP SDK Tier Audit has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does MCP SDK Tier Audit use?

About 4.4k tokens (SKILL.md is roughly 17k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 7.8k tokens, read only when the agent opens those files.

What are the alternatives to MCP SDK Tier Audit?

Skills that share tags, products or a category with MCP SDK Tier Audit: Build Teaql App (teaql/teaql-agent-kit, 2.8k stars), Fory Performance Optimization (apache/fory, 4.6k stars), Healthmd CLI QA (CodyBontecou/health-md, 230 stars) and Supercov (supercorp-ai/supercov, 148 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains MCP SDK Tier Audit?

modelcontextprotocol (a GitHub organization, an official publisher) maintains it in modelcontextprotocol/conformance, which has 129 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on October 5, 2026.

Source: modelcontextprotocol/conformance on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.