futures_dce_position_rank_other

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false. The description adds only that the return is a list of contract names. It does not disclose any additional behavioral traits such as date format handling, error cases, or dependencies. It does not contradict annotations but adds minimal value.

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 brief and includes only essential elements: title, source URL, parameter, and return. It is not verbose and is reasonably front-loaded, though the documentation-style fragments lack a unified, sentence-like structure.

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 tool has a simple one-parameter signature and a return type, but the overall purpose is unclear due to the 'supplement' label. No output schema exists, and the description does not explain how this tool fits with related ranking tools or what 'other' distinguishes. The return type is provided, but usage context is missing.

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 description states the date parameter is a trading day (交易日), which adds some semantic meaning beyond the schema's type and default. However, it does not specify the expected format (e.g., YYYYMMDD) beyond the default value, and with only one parameter, the added meaning is moderate.

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 mostly consists of the title, a URL, and parameter/return docs. It does not clearly state in a verb-driven sentence what the tool does. The title says 'supplement' but the function remains ambiguous, even though the return type indicates it yields a list of contract names.

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 mention its relationship to futures_dce_position_rank or any other tool, nor any prerequisites or conditions. The description is entirely silent on usage context.

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