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Grok MCP

Grok MCP

by merterbak
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python

get_file_content

Read-only

Download the raw text content of an uploaded file, decoded as UTF-8, with an option to limit the number of bytes returned.

Instructions

Download the raw content of an uploaded file as text.

Bytes are decoded as UTF-8 with replacement for invalid sequences. Output
is truncated to `max_bytes` to avoid overwhelming the response.

Args:
    file_id: ID of the uploaded file.
    max_bytes: Maximum bytes to return (default 500 000).

Returns:
    File text, with a truncation note appended when the content exceeds `max_bytes`.

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": {
      "file_id": "<file_id>"
    },
    "name": "get_file_content"
  }
}

Input Schema

NameRequiredDescriptionDefault
file_idYes
max_bytesNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Added
  2. Removed
  3. Added
  4. Removed
  5. Added
  6. Removed
  7. Added

TDQS

A4.5/5.0
Behavior5/5

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

The description discloses important behavioral traits beyond the readOnlyHint annotation: UTF-8 decoding with replacement, truncation to max_bytes, and a truncation note. This adds significant context for the agent.

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 concise with clear sections for Args and Returns. Every sentence adds value with no redundancy.

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

Completeness5/5

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

Given no output schema, the description includes return format and truncation behavior. It covers all necessary aspects: parameters, encoding, truncation, and default behavior.

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?

With 0% schema description coverage, the description compensates by explaining the purpose of 'max_bytes' (to avoid overwhelming response) and its default value. The 'file_id' description is minimal but adequate.

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 downloads raw content of an uploaded file as text. It uses a specific verb and resource, differentiating it from sibling tools like 'get_file' (presumably metadata) and 'upload_file'.

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 usage when needing raw text content, but does not explicitly state when to use this tool over alternatives like 'get_file'. No exclusions or conditions are 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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