index_option_300etf_min_qvix

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering the safety profile. The description adds the source URL and return type but does not disclose data availability, latency, or limitations. For a zero-parameter read-only tool, this is minimal but not misleading.

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 short but contains redundancy: the first line duplicates the title, and the `:return:` line repeats the same phrase. The URL is useful, but the repetitive structure wastes space that could have provided additional details.

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 zero-parameter data access tool, the description gives the return type and source, but lacks any detail about the DataFrame contents, time range, frequency, or usage context. Given the many sibling QVIX tools, this minimal description may leave an agent uncertain about what distinguishes this tool from the daily version.

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 has zero parameters, so there is no parameter behavior to explain. The description adds no parameters beyond the schema, but with zero params this is acceptable; the baseline of 4 applies.

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 identifies the exact resource: '300 ETF 期权波动率指数 QVIX-分时' (300 ETF option volatility index QVIX intraday) and the `:return:` line clarifies it returns this data as a pandas DataFrame. However, it lacks an explicit verb like 'fetches' or 'retrieves,' so the action is implied rather than stated.

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 provides no guidance on when to use this tool versus sibling tools like `index_option_300etf_qvix` (the non-minute version) or other QVIX variants. There are no exclusions, alternatives, or contextual triggers mentioned.

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