option_commodity_contract_table_sina

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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint, covering the safety profile. The description adds the source URL and return type (pandas.DataFrame) but no additional behavioral caveats such as data freshness, pagination, or parameter-dependent behavior.

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 front-loaded with the core statement, followed by URL and parameter documentation. It is reasonably concise with no filler, though the inclusion of the URL and return type adds a bit of clutter.

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 is simple with two optional parameters, but the description does not explain the output columns, the effect of the contract parameter, or whether it returns all contracts or filters by symbol/contract. It also fails to differentiate from sibling tools, leaving ambiguity for an agent trying to choose the right option tool.

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%, but the description compensates by listing the exact allowed symbol choices (e.g., 豆粕期权, 玉米期权) and providing a contract example ('au2012'). It does not define the contract code format fully or explain what happens when parameters are omitted, but it adds substantial meaning beyond the bare schema.

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 it provides all current option contracts (calls and puts) as real-time market quotes from Sina. However, it does not differentiate from the similarly named sibling tool option_commodity_contract_sina, so the purpose is clear but lacks sibling distinction.

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 alternative option-related tools among the many siblings. No exclusions, alternatives, or contextual triggers are mentioned.

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