TheDiscList Public MCP

find_similar_discs

Find alternative replacement discs matching a target disc's category, speed, and flight profile based on weighted Euclidean flight distance.

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": {
      "disc_id": "<disc_id>"
    },
    "name": "find_similar_discs"
  }
}

Input Schema

Name	Required	Description
`limit`	No	Maximum number of similar discs to return (1..20, default 5)
`disc_id`	Yes	Target disc ID or slug to find replacements for
`target_brand`	No	Optional target brand filter for cross-brand replacements (e.g. find Discraft alternative to Innova TeeBird)
`exclude_same_brand`	No	If true, exclude discs from the same manufacturer

Schema Changelog

Changes observed during successful MCP inspections.

First observedSep 7, 2026

TDQS

B3.4/5.0

Behavior2/5

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

No annotations are provided, and the description does not disclose any behavioral aspects such as whether the operation is read-only, potential side effects, or data source limitations. The name suggests read-only, but that is not stated.

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, clear sentence with no redundant words. It is well-structured and front-loaded with the main purpose.

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?

No output schema is provided, and the description does not specify the return format (e.g., list of discs, ordering, or any additional metadata). Since there is no output schema to fill this gap, the description should have provided some indication of the return value.

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 descriptions for all four parameters, covering their meaning and default values. However, the description itself does not add additional context beyond the schema, leaving potential ambiguity about how parameters like target_brand or exclude_same_brand interact.

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: finding alternative discs similar to a target based on category, speed, and flight profile. It distinguishes this from sibling tools (e.g., search_discs, compare_discs) by focusing on similarity matching.

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 intended use case is implied by the description, but no explicit guidance is given on when to use this tool versus alternatives. It lacks statements like 'use this when you need replacements for a disc' or comparisons with sibling tools.

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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