tool-defs-analysis

tool-defs-analysis is a skill for Claude Code, Codex from cyanheads/federal-reserve-mcp-server. It costs 177 tokens per session (4,277 once invoked), scanned A, original, no licence file.

A read-only checker for the text definitions that describe an MCP server’s tools, resources, prompts, and instructions. It reviews the wording that an AI reads when deciding what to call.

In plain words
What is it for?
Use it to audit MCP definition files for tone, tense, defaults, audience, field descriptions, recovery advice, and other communication problems.
Why use it?
It finds unclear wording, hidden assumptions, internal details, and missing guidance before they cause incorrect or failed tool calls.

Skill for Claude CodeCodex

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

Good fit Use it to audit MCP definition files for tone, tense, defaults, audience, field descriptions, recovery advice, and other communication problems.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cyanheads/federal-reserve-mcp-server/tool-defs-analysis
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 cyanheads/federal-reserve-mcp-server --skill tool-defs-analysis
Clone the repo
git clone --depth 1 https://github.com/cyanheads/federal-reserve-mcp-server

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 tool-defs-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/cyanheads/federal-reserve-mcp-server/tool-defs-analysis/github.svg)](https://agentmods.dev/skills/cyanheads/federal-reserve-mcp-server/tool-defs-analysis)
Your own site
<a href="https://agentmods.dev/skills/cyanheads/federal-reserve-mcp-server/tool-defs-analysis"><img src="https://agentmods.dev/badge/skills/cyanheads/federal-reserve-mcp-server/tool-defs-analysis/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 tool-defs-analysis

Your own site · 80×15
<a href="https://agentmods.dev/skills/cyanheads/federal-reserve-mcp-server/tool-defs-analysis"><img src="https://agentmods.dev/badge/skills/cyanheads/federal-reserve-mcp-server/tool-defs-analysis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 177 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,277 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 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 $0.00177 $0.04277
Opus 5 $0.00088 $0.02139
Sonnet 5 $0.00035 $0.00855
Haiku 4.5 $0.00018 $0.00428

Measured 11d ago against content hash 1d1f27b114eb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

tool-defs-analysis 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 11d 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.

skills/tool-defs-analysis/SKILL.md · 280 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. 11d ago First seen · 280 lines · 177 tokens per session scan A 1d1f27b114eb

Subscribe to this mod's changes

tool-defs-analysis is a skill published in the GitHub repository cyanheads/federal-reserve-mcp-server (1 stars, last pushed 21d ago), with no licence file. It adds 177 tokens to every session and 4,277 once invoked, about $0.0009 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.

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