BinanceGetWbethRateHistory

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

With no annotations, the description carries the full burden. It only restates the core function and does not disclose pagination behavior, default parameters, response format, or any edge cases. For a query tool, this lacks important behavioral context.

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, concise sentence with no fluff. It front-loads the purpose effectively, though it could be slightly more direct without the API framing.

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?

The description provides only high-level purpose and omits critical details like pagination size/current semantics, response structure, and behavior when time range is omitted. Given no output schema and no annotations, this is insufficient for an agent to fully understand the tool's behavior.

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?

Input schema coverage is 100%, so the schema already documents each parameter. The description adds no extra meaning beyond 'within a specified time range,' which is already evident from startTime/endTime fields. Baseline 3 is appropriate.

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 tool retrieves historical WBETH exchange rates and BETH annual percentage rates over a time range, using a specific verb ('retrieve') and resource ('WBETH rate history'). It distinguishes from sibling tools like rewards or wrap history by specifying the data types, but it does not explicitly name alternatives.

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 alternatives such as BinanceGetWbethRewardsHistory or BinanceGetWbethWrapHistory. The description only implies usage for retrieving historical rate/APR data, with no clear context or exclusions.

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