brasil-mcp-essentials

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parse_boleto

Enter a boleto digit line or barcode to automatically parse and identify Brazilian bank slips or collection billets. Detects bancário and arrecadação types.

Instructions

Parse boleto bancário (47 linha digitável / 44 código de barras) OU arrecadação (48). Detecta tipo automaticamente.

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": {
      "value": "<value>"
    },
    "name": "parse_boleto"
  }
}

Input Schema

Name	Required	Description	Default
`value`	Yes

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.3.0Jul 30, 2026

TDQS

A3.6/5.0

Behavior2/5

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

No annotations provided. The description lacks details on error handling, input validation, or behavior for invalid codes.

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

Conciseness5/5

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

Two concise sentences front-loading the core purpose and automatic detection, with no extraneous content.

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?

Given the single parameter and existing output schema, the description is fairly complete. It clarifies the scope and automatic type detection.

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

Parameters3/5

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

Single parameter 'value' with 0% schema coverage. The description mentions valid code lengths (44,47,48) but not the exact required format (e.g., digits only, with/without spaces).

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

Purpose5/5

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

The description clearly states it parses boleto bancário and arrecadação codes with automatic type detection, distinguishing it from sibling tools like parse_pix_brcode and various validators.

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?

Implied usage: use when you have a boleto or arrecadação code. No explicit when-not-to-use or alternatives, but sibling tools cover other cases.

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