create_younify_users_refresh_by_service_id

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

Annotations already declare readOnlyHint=false, idempotentHint=true, and destructiveHint=false. The description adds no behavioral context beyond 'refresh', such as side effects, asynchronous behavior, or whether it triggers background jobs. It does not explain what 'refresh' entails operationally. Since annotations carry the safety profile, the description contributes little transparency.

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 concise, front-loads the purpose, and uses a simple args list. It includes the endpoint redundantly but harmlessly. Every sentence earns its place, and there is no fluff. It could be slightly more structured (e.g., separating endpoint from description), but it's efficient.

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 tool has a complex body parameter and an output schema, the description is not fully complete. It tells the agent where to find body fields but doesn't describe the expected response or clarify the difference from the by_all_data sibling. It also omits any mention of idempotency or non-destructive nature, though annotations cover those. The guidance is sufficient for a first call but leaves gaps.

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 0%, so the description must compensate. It explains service_id with an example ('netflix') and instructs the agent to read the matching GET or /schema endpoint for body fields, which is crucial for a free-form body object. This provides actionable guidance beyond the bare schema, though it doesn't enumerate specific 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 states a clear verb and resource: 'Refresh a streaming service.' It also provides the endpoint and identifies the service_id parameter. The name itself distinguishes it from sibling refresh tools (e.g., by_all_data), and the description reinforces the specific target without being tautological. It lacks an explicit contrast with the closest sibling, but the purpose is unambiguous.

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 on when to use this tool versus alternatives. It does not mention the similar sibling create_younify_users_refresh_by_service_id_by_all_data or any conditions that would select one over the other. It also fails to state prerequisites or expected context (e.g., when a refresh is needed). The only hint is to read the schema for the body, which is parameter-related, not usage guidance.

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