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subscriptions_win_back_offers_get_to_many_related

Retrieve related win-back offers for an App Store subscription by ID, including optional prices and field filters.

Instructions

GET /v1/subscriptions/{id}/winBackOffers (GET /v1/subscriptions/{id}/winBackOffers)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYesthe id of the requested resource
limitNomaximum resources per page
includeNocomma-separated list of relationships to include
limit_pricesNomaximum number of related prices returned (when they are included)
fields_winBackOffersNothe fields to include for returned resources of type winBackOffers
fields_winBackOfferPricesNothe fields to include for returned resources of type winBackOfferPrices

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 behavioral burden, and it discloses nothing: no pagination behavior, no auth requirements, no rate limits, no note on what the response contains. A bare endpoint path is not behavioral disclosure.

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?

It is short, but it is pure redundancy: the same path is printed twice with no added information. Brevity here reflects under-specification rather than efficient communication.

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 paginated GET-list tool with no annotations and no output schema, the description should at minimum explain the resource returned and pagination. The path alone leaves an agent guessing at the semantics of win-back offers and how 'related' differs from the sibling 'relationship' 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?

Schema description coverage is 100% across all 6 parameters (id, limit, include, limit_prices, fields_winBackOffers, fields_winBackOfferPrices), so the schema already documents them fully. The description adds nothing beyond the schema, which yields the baseline 3.

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 just the raw endpoint path duplicated in parentheses: 'GET /v1/subscriptions/{id}/winBackOffers (GET /v1/subscriptions/{id}/winBackOffers)'. It restates the tool name rather than explaining what the tool does, though the path does hint at returning win-back offers for a subscription. This is tautology rather than a stated purpose.

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?

No guidance on when to use this tool versus the sibling subscriptions_win_back_offers_get_to_many_relationship, win_back_offers_get_instance, or the plain win_back_offers collection tools. An agent gets no help distinguishing 'related' vs 'relationship' variants or when this listing is appropriate.

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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