subscriptions_get_subscription_by_uuid

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. The '[Protected]' tag hints that authentication is required, which is some value, but there is no disclosure of error behavior for an unknown or deleted user ID, what the subscription payload contains, or any rate/size constraints.

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?

Very short and front-loaded, with the intent readable in the first line. The raw 'GET /api/...' path and 'Tags:' line are boilerplate scaffolding rather than genuine description content, which keeps it out of 5 territory.

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 simple one-parameter read this is usable, but with no annotations and no output schema the description does nothing to characterize the return value or failure modes, leaving an agent unable to predict the result 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% and the single userId parameter is documented by the schema, so the description only restates it ('by User ID'). This meets the baseline 3 for a fully-covered schema with no additional semantic detail added.

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 subscription by User ID'), and the 'by-id/{userId}' path differentiates it from sibling lookups like subscriptions_get_subscription_by_username and subscriptions_get_subscription_by_short_uuid_protected. It stops short of explicitly naming those siblings, so it earns a 4 rather than a 5.

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 statement of when to use this tool versus the many sibling subscription getters (by username, by short uuid, get_all_subscriptions). The agent must infer selection from the tool name alone.

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