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echo

Repeat and return input text for testing or verification purposes within the MCP-CEP server environment.

Instructions

Repete o texto enviado.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
textoYes

Implementation Reference

  • cep.py:6-9 (handler)
    The async handler function for the 'echo' tool, decorated with @mcp.tool(). It takes a string input 'texto' and returns it prefixed with 'Você disse: ', fulfilling the echo functionality.
    @mcp.tool()
    async def echo(texto: str) -> str:
        """Repete o texto enviado."""
        return f"Você disse: {texto}"
Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the tool 'repeats' text, implying a read-only or echo operation, but doesn't disclose any behavioral traits such as side effects, error handling, or output format. This is a significant gap for a tool with no annotation coverage.

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?

The description is a single, efficient sentence in Portuguese ('Repete o texto enviado'), with zero wasted words. It's appropriately sized and front-loaded, conveying the core purpose without unnecessary elaboration.

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?

Given the tool's low complexity (1 parameter, no output schema, no annotations), the description is minimally complete. It states what the tool does but lacks details on behavior, usage, or output. For such a simple tool, this might be adequate, but it leaves gaps in understanding how the tool operates beyond its basic function.

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?

The description adds no parameter semantics beyond the input schema, which has 0% description coverage. However, with only 1 parameter ('texto'), the tool's purpose inherently clarifies its use: the parameter is the text to repeat. This compensates well for the low schema coverage, making the parameter meaning clear from context.

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

Purpose3/5

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

The description 'Repete o texto enviado' (Repeats the sent text) states the tool's purpose with a clear verb ('repeats') and resource ('text'), but it's somewhat vague about what 'repeats' entails (e.g., returns, outputs, echoes). It doesn't distinguish from sibling tools like 'buscar_cep', but they serve different functions, so differentiation isn't critical here.

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

Usage Guidelines2/5

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

The description provides no guidance on when to use this tool versus alternatives or in what context. It lacks explicit usage instructions, prerequisites, or exclusions, leaving the agent to infer usage based on the simple purpose alone.

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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