okx_get_option_taker_block_volume

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

Without any annotations, the description carries the full burden. It only indicates read-only via "[L:READ]" and a category tag "[统计]", but does not disclose other behavioral traits like data freshness, pagination, rate limits, or what the output represents. The prerequisite hint is useful but insufficient.

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 very short and front-loaded with the read hint, but it sacrifices clarity for brevity. It is not verbose, but the lack of substantive information means conciseness is not an asset here.

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 read tool with one parameter and no output schema, a minimal description might be acceptable, but this one fails to explain what the tool returns and relies on an external call (agent_catalog) without context. The tool is not self-contained or sufficiently complete for an agent to invoke correctly.

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 input schema covers 100% of parameters with a clear description for 'ccy' (currency, required). The tool's description adds no additional meaning beyond what the schema already provides, so 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 only contains a read hint and a prerequisite note ("请先调用 agent_catalog") but does not explicitly state what the tool does. The name suggests it retrieves option taker block volume, but the description lacks a clear verb and resource, making it vague compared to sibling tools like okx_get_taker_volume.

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 description instructs to call agent_catalog first, which is a prerequisite, but provides no guidance on when to use this tool versus alternatives such as okx_get_taker_volume or okx_get_option_open_interest. There is no when-to-use or when-not-to context.

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