games_subscriptions_v1

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

With no annotations, the description should disclose behavioral traits. It does state the API key requirement and points to a guide resource, but it does not indicate whether this is a read or write operation, side effects, or response behavior. The POST method implies mutation but is not explained.

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

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

The description is very brief and front-loaded with the endpoint, required field, and auth details. Each piece of information is useful, though the phrase 'Game Subscriptions' is redundant with the tool name. It is concise but sacrifices depth.

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

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

Given the lack of annotations, output schema, and the complexity of 5 parameters with nested objects, this description is inadequate. It delegates full instructions to an external resource (itad://guide/calling), indicating the description itself is incomplete. It does not cover return values, error cases, or usage context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema descriptions are generic (e.g., 'request body (required)') and the description merely repeats that body is required. Neither the description nor the schema explains the structure or meaning of the body or other parameters, adding no real value beyond the property names.

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

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

The description states 'Game Subscriptions' which essentially restates the tool name without specifying what the tool does (e.g., create, list, manage). The endpoint method POST is shown, but no verb or operation is described, leaving the action ambiguous.

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

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

The description mentions the required body and API key prerequisites, but provides no guidance on when to use this tool versus its many siblings (e.g., waitlist_games_v1, games_bundles_v2). No alternative tools or exclusions are mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.