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tool-mcp-server

tool-mcp-server

by maple-awa
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

tool_file_to_string

Convert a file to a string to obtain its content as text for further use.

Instructions

[data] File To String

Parameters:

  • file (bytes): File

Outputs:

  • content (string): Content

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "tool_file_to_string"
  }
}

Input Schema

NameRequiredDescriptionDefault
fileNoFile (base64 file payload)
contentNoContent

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.5/5.0
Behavior2/5

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

With no annotations, the description must fully explain behavior, but it only states that a file (bytes) is input and content (string) is output. It doesn't mention encoding, how the file is interpreted, or any error handling, leaving the actual transformation opaque.

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

Conciseness3/5

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

The format is clear and easy to scan with headings and bullets, but the content is under-specified. The parameter/output lists duplicate schema information without adding context, making it short but not effectively concise.

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

Completeness2/5

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

For a simple conversion tool, the description is incomplete. It doesn't specify input file formats, output string encoding, or any edge cases. With no output schema, the description should clarify the result but only says 'Content', and the lack of annotations increases the need for explanation.

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 schema already provides full descriptions for both parameters (file as base64 payload with filename/mimeType, content as string). The description just repeats 'File' and 'Content', adding no extra meaning, so it stays at the baseline for high schema coverage.

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 clearly indicates a file-to-string conversion, but it's essentially the tool's title restated. It does not elaborate on the conversion process or what kind of string is produced, and it doesn't distinguish itself from siblings like tool_file_to_base64 through its description.

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?

There is no guidance on when to use this tool versus alternatives. The description only lists parameters and outputs, with no context about preferred scenarios, prerequisites, or exclusions.

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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