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erayendes

Heimdall App Store Connect MCP

end_app_availability_pre_orders__create

Destructive

Create an end app availability pre-order in App Store Connect by specifying territory availabilities for release-level setup.

Instructions

Create an end app availability pre order. [POST /v1/endAppAvailabilityPreOrders] RELEASE-level write.

Input Schema

NameRequiredDescriptionDefault
bodyYesJSON:API request body (Apple schema: EndAppAvailabilityPreOrderCreateRequest).

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.3.0

TDQS

A3.6/5.0
Behavior3/5

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

The core behavioral traits (write access, destructiveness, idempotency) are handled by the annotations. The description adds operational context ('RELEASE-level write') and API format (POST /v1/endAppAvailabilityPreOrders), which enhances clarity but doesn't provide deep functional behavior beyond the schema.

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 definition is highly concise. It uses two short, front-loaded statements: what it does and how it is exposed via the API, ensuring zero wasted words.

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?

It is quite complete for a tool whose input structure is already fully detailed in the schema. It successfully conveys the necessary context (operation type and scope) for an agent to decide if this tool is applicable.

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?

Since the schema description coverage is 100%, the input parameters are fully defined structurally. The description adds no semantic value regarding the specific required fields or data types beyond what is already in the schema.

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 uses a clear, specific verb ('Create'), identifies the exact resource ('end app availability pre order'), and provides the API endpoint path to ensure unambiguous identification.

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 offers no guidance on when or why this tool should be used. It makes no attempt to contrast it with other similar operations (like listing or updating availability).

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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