subscribeInsurance

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

The annotations already declare readOnlyHint=true and openWorldHint=true, which cover safety and dynamic data. The description adds no behavioral detail beyond the verb 'subscribe' – it does not explain that this is a streaming subscription, how messages are delivered, how to stop it, or what timeoutMs and messageCount control.

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 a single short phrase with no redundant words, so it is highly concise and front-loaded. However, it is so minimal that it functions more like a label than an explanatory description.

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?

With three parameters, no output schema, and zero parameter documentation, this one-phrase description is severely incomplete. An agent cannot determine valid coin values, the semantics of the numeric parameters, or the format and lifecycle of the subscribed data.

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%, and the description provides no parameter information. 'coin' is unexplained (which coin's insurance fund?), timeoutMs is ambiguous (timeout for what?), and messageCount is undefined. The agent must guess or rely on defaults.

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 ('订阅' / subscribe) and a specific resource ('保险基金数据' / insurance fund data). It is distinguishable from sibling subscribe_* tools by the resource name, but it does not explicitly contrast with related tools like getInsurancePool or clarify whether this is a one-time or continuous 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?

There is no guidance on when to use this tool versus alternatives. It does not explain use cases, prerequisites, or how this subscription relates to the getInsurancePool query tool. An agent has to infer usage from the name and schema alone.

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