Borrowing it
Nothing to install: this file belongs to SidneyBissoli/ibge-br-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/SidneyBissoli/ibge-br-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/SidneyBissoli/ibge-br-mcpWrote 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.
[](https://agentmods.dev/instructions/sidneybissoli/ibge-br-mcp/claude-md)<a href="https://agentmods.dev/instructions/sidneybissoli/ibge-br-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/sidneybissoli/ibge-br-mcp/claude-md/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.
<a href="https://agentmods.dev/instructions/sidneybissoli/ibge-br-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/sidneybissoli/ibge-br-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.04891 | $0.04891 |
| Opus 5.5 | $0.01956 | $0.01956 |
| Sonnet 5.5 | $0.00978 | $0.00978 |
| Haiku 4.5 | $0.00489 | $0.00489 |
Grade A, and why
ibge-br-mcp CLAUDE.md 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
What this is
An MCP (Model Context Protocol) server, published to npm as ibge-br-mcp, that exposes Brazilian public data from the IBGE APIs as ~23 tools over STDIO (health data, including some DataSUS-origin stats, is read via IBGE's SIDRA — the server only ever calls IBGE endpoints). Pure TypeScript, ESM, no runtime framework — just @modelcontextprotocol/server (MCP SDK v2) + zod 4. There is no database and no local state beyond an in-memory cache; every tool is a thin async function that fetches from a public REST API and formats the result as Markdown text.
Commands
npm run build # tsc → dist/ (required before start/inspector; bin points at dist/index.js)
npm run dev # build + run
npm run watch # tsc --watch
npm test # vitest run (all tests)
npm run test:watch # vitest watch
npm run test:coverage # coverage report
npm run lint # eslint src/ (must be zero warnings)
npm run lint:fix
npm run format # prettier --write src/
npm run inspector # @modelcontextprotocol/inspector against dist/index.js — manual tool testing
node scripts/smoke-mcp.mjs # smoke against the hosted Worker (initialize/tools/list/calls incl. estatisticas)
node scripts/smoke-mcp.mjs --stdio # same smoke over local STDIO (requires npm run build)
node scripts/smoke-mcp.mjs --sonda # only asks the IBGE APIs whether they are serving (exit 0/2) — read a red deploy with it
The smoke runs on criarSmoke from @sbissoli/mcp-live-source (dev): a tool that answers
isError unexpectedly triggers a direct probe of the source API that check names
(sondas: ["localidades"] / ["agregados"]); source down = ::warning title=Fonte indisponível, exit 0 (the deploy step stays green); source serving = red with the tool's
text. A check that throws (assertion, HTTP, JSON-RPC) is a deploy defect and never probes.
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.
- 2d ago Changed · +10 lines · +165 tokens per session eab101fc5e4e
- 9d ago Changed · +48 tokens per session c600388ce3fc
- 16d ago Changed · +172 tokens per session 3c7acaeb742c
- 21d ago Changed · +48 tokens per session 27df0fd730f2
- 28d ago Changed · +431 tokens per session 6065982c1f34
- 1mo ago Changed · +12 lines · +470 tokens per session d35af42881f5
- 1mo ago First seen · 94 lines · 3,557 tokens per session scan A 0a1f4c1e329b
ibge-br-mcp CLAUDE.md is an instructions file published in the GitHub repository SidneyBissoli/ibge-br-mcp (12 stars, last pushed 3d ago), licensed MIT. It adds 4,891 tokens to every session, about $0.0196 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 2026-08-31.
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