subscription_group_localizations_update_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, and it falls well short. It implies a mutation via PATCH but says nothing about whether the update is partial or full, what fields are mutable, whether changes are reversible, what auth/permissions are required, or what happens to unnamed fields. Pointing at an OpenAPI schema name is a reference, not disclosure.

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?

It is short, but the endpoint is needlessly duplicated in the parenthetical (PATCH /v1/subscriptionGroupLocalizations/{id} appears twice), which is pure waste. The only value-bearing content is the schema pointer, so the 'conciseness' masks under-specification rather than discipline.

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?

This is a nested-body mutation tool with no annotations and no output schema, so the description must explain what can actually be updated and what the JSON:API envelope requires. Instead it defers everything to an external OpenAPI document, leaving an agent unable to construct a correct body or predict the result from the definition alone.

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 the schema already documents both parameters and the baseline is 3. The description adds only a pointer to components.schemas.SubscriptionGroupLocalizationUpdateRequest for the body envelope, which restates the schema's own description rather than adding syntax, field semantics, or format details beyond it.

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 and resource path (PATCH /v1/subscriptionGroupLocalizations/{id}), which tells an agent this performs a partial update of a subscription group localization. However, it is essentially a restatement of the endpoint/name rather than a plain-language explanation, and it does nothing to distinguish this from siblings like subscription_group_localizations_v2_update_instance, which is a real risk given the near-identical name. Vague-but-decipherable.

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 guidance on when to use this tool versus alternatives. In a catalog containing subscription_group_localizations_v2_update_instance, subscription_group_localizations_create_instance, and delete_instance variants, the description offers no routing condition whatsoever. Usage must be entirely inferred from the name.

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