get_user_by_user_id_push_subscriptions

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds the endpoint and the 'get all' scope, but does not disclose other behavior such as response shape, possible 404 for unknown users, or authorization requirements.

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 and front-loaded with the core purpose, followed by the endpoint and parameter. It contains no meaningful filler, though the 'Args' section is slightly redundant given the schema.

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 simple single-parameter read operation with rich annotations and an output schema, so the description does not need to explain return values. The main missing piece is routing guidance relative to the singular sibling endpoint, but otherwise the definition is complete for invocation.

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 provides only the user_id number, and the description adds that it is a path parameter. Since user_id's meaning is fairly evident from the tool name and description, this is minimally sufficient, though it does not elaborate on semantics such as whose ID it is or expected format beyond the path template.

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 a specific verb and resource: 'Get all web push notification settings for a user.' It also includes the exact endpoint path, making the operation unambiguous. The word 'all' distinguishes it from the sibling get_user_by_user_id_push_subscription_by_endpoint, which retrieves a single subscription.

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 clear focus on retrieving all push subscriptions implies its main use case, but it does not explicitly mention when to prefer this over the singular push subscription endpoint or when not to use it. There is no alternative guidance, so the agent must infer usage from the name and first sentence.

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