app_store_version_experiment_treatments_update_instance

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

With no annotations, the description carries the full burden of behavioral disclosure, yet it only says this is a PATCH and points at the OpenAPI schema for the body envelope. It does not state whether the update is partial or full, whether it requires specific permissions, whether it is reversible, or what happens to fields not included.

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 single sentence front-loads the route, which is good, but the parenthetical repeats the identical PATCH path verbatim, adding zero information. The remaining content is a schema pointer rather than a description, so the text is short without being informative.

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?

For a mutation endpoint with a nested JSON:API body object, no annotations, and no output schema, the description is far too thin. An agent is left without the identity of the updatable fields, permission requirements, or the effect of the call.

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?

Schema description coverage is 100%, so both the id and body parameters are already documented in the schema. The description only adds a pointer to components.schemas.AppStoreVersionExperimentTreatmentUpdateRequest for the body shape, which is a marginal addition beyond the schema's own note.

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 the HTTP verb (PATCH) and the exact resource path (appStoreVersionExperimentTreatments/{id}), which implies updating a specific experiment treatment. That is enough to distinguish it from the create/get/delete siblings, but it is a raw route string rather than a plain-language statement of what the operation accomplishes.

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?

No when-to-use guidance, no prerequisites, and no reference to alternatives such as the create/get/delete siblings or how an update differs from re-creating a treatment. The agent must infer all usage context from the HTTP method alone.

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