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pontofato

by com.pontofato
OverviewDiscussionsAdmin

Suggest a CEP or a street

sugerir
Read-onlyIdempotent

Suggestions for a partial CEP or a street name, with the neighborhood and the city. Up to eight places. A CEP accepts a prefix of 3 to 8 digits, with an optional hyphen after the fifth digit. A street search accepts an optional state (UF) and city. One address represents each CEP; the full lookup returns the others. The reference is CNEFE 2022, and it does not certify the current postal CEP.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "q": "<q>"
    },
    "name": "sugerir"
  }
}

Input Schema

NameRequiredDescriptionDefault
qYesPartial CEP or street, 3 to 160 characters.
ufNoState (UF) abbreviation, to limit the street search.
cidadeNoCity, to limit the street search.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed3 schema fields changed
    • changedInput schema / properties / cidade / description
      Previous value: -"Município para restringir a busca por rua."New value: +"City, to limit the street search."
    • changedInput schema / properties / q / description
      Previous value: -"CEP parcial ou rua, de 3 a 160 caracteres."New value: +"Partial CEP or street, 3 to 160 characters."
    • changedInput schema / properties / uf / description
      Previous value: -"Sigla da UF para restringir a busca por rua."New value: +"State (UF) abbreviation, to limit the street search."
  2. Added

TDQS

A3.8/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With readOnlyHint/idempotentHint already declaring the safety profile, the description adds substantial extra context: an eight-result cap, the 3-to-8-digit CEP prefix rule with optional hyphen after the fifth digit, and the provenance/limitation that data is CNEFE 2022 and does not certify the current postal CEP. Only pagination/ordering behavior is left unexplained.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loads what the tool returns and the result cap before drilling into format rules, so the agent gets the essentials first. Slightly dense and run-on in the middle sentences, but every sentence adds a distinct fact rather than padding.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

No output schema exists, so the description carries the return-value burden: it discloses the shape (up to eight places with neighborhood and city) and the caveat that one address represents each CEP. For a three-parameter read-only suggestion tool this is nearly complete, with only result ordering/pagination unaddressed.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is already 100%, so the baseline is 3. The description adds meaning beyond the schema by spelling out the accepted CEP input format (3-8 digits, optional hyphen after the fifth) and clarifying that uf/cidade only constrain the street-search branch, not the CEP branch.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb (suggest) and resource (partial CEP or street name) with concrete scope: up to eight places, each with neighborhood and city. It implies a distinct role from a full lookup tool ('the full lookup returns the others') but never names the sibling (buscar, consulta_cep) it is meant to complement.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Conveys the usage context well: partial input for typeahead-style suggestions, with format rules for CEP prefixes and optional UF/city for street search. However, it never states when an agent should pick this over buscar/consulta_cep/consulta_endereco, and the reference to 'the full lookup' is left unnamed.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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