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app-store-connect-mcp

app-store-connect-mcp

by devinwang
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TypeScript
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bundle_ids_app_get_to_one_relationship

Retrieve the App Store app linked to a specific bundle ID, returning the relationship data needed to map bundle identifiers to their associated app.

Instructions

GET /v1/bundleIds/{id}/relationships/app (GET /v1/bundleIds/{id}/relationships/app)

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": {
      "id": "<id>"
    },
    "name": "bundle_ids_app_get_to_one_relationship"
  }
}

Input Schema

NameRequiredDescriptionDefault
idYesthe id of the requested resource

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.5.0

TDQS

D1.8/5.0
Behavior1/5

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

No annotations are provided, so the description carries the full burden, yet it only implies an HTTP GET. It says nothing about what the relationship endpoint returns, whether it requires auth scopes, or how it differs behaviorally from the 'related' variant — leaving the safety and behavior profile entirely undisclosed.

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

Conciseness2/5

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

The text is short but wasteful: the same endpoint path is printed twice in parentheses, contributing zero additional information. It is not front-loaded with any purpose statement, just a duplicated route string.

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 single-parameter relationship lookup with full schema coverage and no output schema, an agent still needs to know this returns the linked app resource (and how it differs from the 'related' sibling). The description supplies none of that, leaving it inadequate despite the tool's low complexity.

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?

Only one parameter exists and the schema documents it at 100% coverage ('the id of the requested resource'), so the baseline of 3 applies. The description adds no extra meaning about the id beyond what the schema already states.

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

Purpose2/5

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

The description is nothing more than the raw endpoint path repeated twice, 'GET /v1/bundleIds/{id}/relationships/app (GET /v1/bundleIds/{id}/relationships/app)'. It restates the tool name/route without explaining in plain terms that it fetches the app resource linked to a bundle ID, so an agent gains no real understanding of the operation.

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

Usage Guidelines1/5

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

There is no when-to-use guidance at all, and no mention of the closely related sibling bundle_ids_app_get_to_one_related, which an agent could easily confuse with this relationship endpoint. Nothing indicates when this is preferred over fetching the app directly.

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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