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dan1d

dolar-mcp

get_dollar

Get the exchange rate for a specific dollar type in Argentina. Supported types: blue, oficial, bolsa, contadoconliqui, cripto, mayorista, tarjeta.

Instructions

Get a specific dollar exchange rate. Types: blue, oficial, bolsa, contadoconliqui, cripto, mayorista, tarjeta.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
typeYesDollar type: blue, oficial, bolsa, contadoconliqui, cripto, mayorista, tarjeta
Behavior2/5

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

No annotations are provided, and the description only says 'Get', implying a read operation. It does not disclose any side effects, permissions, or data freshness. For a simple read, the description is minimal.

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?

The description is two sentences and to the point, listing the types efficiently. No unnecessary words, though it could be slightly more structured.

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

Completeness3/5

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

With no output schema, the description does not specify the format of the returned exchange rate (e.g., buy/sell, numeric value). For a simple tool, this is adequate but not fully complete.

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?

The input schema has 100% description coverage for the only parameter 'type'. The description repeats the same list of types, adding no extra semantic value beyond the schema.

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 the tool's function: getting a specific dollar exchange rate, and lists all valid types. This differentiates it from siblings like get_all_dollars which retrieves all rates.

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?

The description implies use for retrieving a single dollar type, but does not explicitly compare to alternatives like get_all_dollars or get_currency. No when-to-use or when-not-to-use guidance is provided.

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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