Returns metadata for a specific SIDRA table. Features: - General info (name, survey, subject, periodicity) - Available territorial levels - Variable list with units - Classifications and categories - Available periods Use this tool to understand table structure BEFORE querying data with ibge_sidr...
Part of the Ibge Br server.
Free to start. No card required.
AI agents call ibge_sidra_metadados to retrieve information from Ibge Br without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though ibge_sidra_metadados only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"ibge_sidra_metadados": {}
}
}See the full Ibge Br policy for all 23 tools.
These attack patterns abuse exactly the kind of access ibge_sidra_metadados gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Returns metadata for a specific SIDRA table. Features: - General info (name, survey, subject, periodicity) - Available territorial levels - Variable list with units - Classifications and categories - Available periods Use this tool to understand table structure BEFORE querying data with ibge_sidra. Examples: - Population table metadata: tabela="6579" - Census 2022 metadata: tabela="9514" - PNAD unemployment: tabela="4714". It is categorised as a Read tool in the Ibge Br MCP Server, which means it retrieves data without modifying state.
Register the Ibge Br MCP server in PolicyLayer and add a rule for ibge_sidra_metadados: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Ibge Br. Nothing to install.
ibge_sidra_metadados is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the ibge_sidra_metadados rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for ibge_sidra_metadados. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
ibge_sidra_metadados is provided by the Ibge Br MCP server (ibge-br-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 23 Ibge Br tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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