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Garmin MCP Server

Garmin MCP Server

by JJRPF
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

download_workout

Retrieve a specific workout as a FIT file by providing its unique workout ID, enabling offline access to training data.

Instructions

Download a workout as a FIT file

Downloads the workout in FIT format. The binary data cannot be returned directly through the MCP interface, but this confirms the workout is available.

Args: workout_id: ID of the workout to download

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": {
      "workout_id": "<workout_id>"
    },
    "name": "download_workout"
  }
}

Input Schema

NameRequiredDescriptionDefault
workout_idYes

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.6/5.0
Behavior3/5

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

With no annotations, the description carries the burden of explaining behavior. It discloses that binary data is not returned directly but confirms availability, which is a meaningful behavioral trait. However, it does not mention permissions, side effects, or any other behavioral details.

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 and front-loaded with the primary purpose. It uses a clear first line followed by a brief elaboration and an explicit Args section, making it easy to scan and understand.

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?

The tool is simple, and the description covers the core action and an important limitation. While it does not specify the exact return value, the statement 'confirms the workout is available' implies a confirmation response, which is sufficient for this simple tool.

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 provides only the parameter name and type (integer) with no description. The description adds the explanation 'ID of the workout to download', which clarifies the parameter's purpose but provides no additional detail about constraints, format, or default behavior.

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 a workout as a FIT file, naming the resource (workout) and action (download). It is distinct from sibling tools like download_course_gpx and download_activity_file, which target different resources.

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 does not indicate when to use this tool versus alternatives such as download_activity_file or upload_workout. It mentions a limitation (binary data cannot be returned) but offers no explicit guidance on selection criteria or preconditions.

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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