subscriptions_batch_update

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

With no annotations, the description carries full burden. It only states the batch limit (100) but omits critical behavioral details: idempotency, error handling on partial failures, permission requirements, or whether it's a full or partial update.

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 description is concise and front-loaded with the key action and limit. However, it could include additional context (e.g., required fields) without becoming verbose.

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 complexity of a batch operation with nested objects and no output schema, the description is insufficient. It does not explain how to construct request objects, what the response contains, or how errors are reported.

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 'requests' parameter lacks any description in both the schema and the tool description. The description adds no value beyond what the schema provides for 'packageName', and the undocumented nested structure leaves agents uncertain about required fields.

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 clearly states the action (update), resource (subscriptions), and scope (up to 100 in one call). However, it does not distinguish from other batch_update sibling tools like subscription_offers_batch_update, which could cause confusion when selecting the correct tool.

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 guidance is provided on when to use this tool versus alternative tools (e.g., singular subscriptions_update, subscriptions_batch_get, or other batch operations). The description lacks context for appropriate usage scenarios.

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