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ahmetsina

mcp-appstore-connect

by ahmetsina

get_in_app_purchase

Get detailed information about a specific in-app purchase, including localizations, price points, and related resources, from App Store Connect.

Instructions

Get detailed information about a specific in-app purchase.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
iap_idYesThe in-app purchase ID
includeNoRelated resources to include
Behavior3/5

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

With no annotations, the description minimally says 'Get detailed information', implying a read operation. It does not disclose error handling, rate limits, or return format details, but it does not contradict any known behaviors.

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?

Single sentence, front-loaded with key action and resource. No unnecessary words, making it highly efficient for quick parsing.

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

Completeness3/5

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

No output schema, and the description only mentions 'detailed information' without hinting at response structure. For a simple getter with two parameters, it is minimally complete but could be improved.

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?

Schema coverage is 100%, so baseline is 3. The description adds no extra meaning beyond the schema's parameter descriptions, such as how to use the 'include' array effectively.

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

Purpose4/5

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

The description clearly states it retrieves detailed information for a specific in-app purchase, distinguishing it from list_in_app_purchases. However, it does not explicitly contrast with siblings, leaving some ambiguity.

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?

No guidance on when to use this tool versus alternatives like list_in_app_purchases, nor any preconditions or limitations. The agent must infer context from the tool name alone.

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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