subscription_images_v2_create_instance

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. It states nothing about authentication, required scopes, what the create does to existing resources, whether it is idempotent, or what the response contains. For a mutation endpoint with zero annotation coverage this is a serious gap.

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 short but wastes its opening on a literal duplication of the endpoint — 'POST /v2/subscriptionImages (POST /v2/subscriptionImages)' — before the only useful sentence. Brevity here reflects under-specification rather than disciplined concision.

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?

With no annotations, no output schema, and a nested JSON:API body, the description needs to do heavy lifting. It offers only an external schema reference and does not explain the envelope composition or any create-time preconditions, leaving the agent dependent on out-of-band OpenAPI knowledge.

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?

There is a single body parameter with 100% schema description coverage, so the baseline is 3. The description adds only a pointer to components.schemas.SubscriptionImageV2CreateRequest, which roughly duplicates the schema's own description rather than adding new meaning about the envelope's contents.

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 names the HTTP verb and resource path (POST /v2/subscriptionImages), so an agent can infer this creates a subscription image. However, it does nothing to distinguish this v2 create from the sibling subscription_images_create_instance (v1) or the other v2 instance tools, and the operational meaning is only implied by the REST convention rather than stated.

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?

There is no when-to-use guidance, no prerequisites, and no mention of alternatives such as the v1 create or the v2 update/get/delete siblings. The agent is given a URL and a pointer to a schema, nothing about context of use.

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