index_option_1000index_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, so the safety profile is known. The description adds only a return type (pandas.DataFrame) and a source URL, but no behavioral details such as data lag, column structure, or rate limits. It repeats the title without enriching beyond structured fields.

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 redundant: the first line and the :return: line are identical, and the URL is likely not actionable for an AI agent. The repetition wastes space without adding informational value, so it is not a model of conciseness.

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 zero-parameter, read-only tool, the description provides the essential identity (index, metric, timeframe, return type). However, it lacks differentiation from closely related sibling tools (e.g., the non-min version) and does not describe the DataFrame's typical columns or update frequency, leaving gaps for an agent deciding among the many QVIX tools.

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 is empty with 0 parameters, and schema_description_coverage is high (100% effectively), so the baseline is 4. The description's mention of return type adds slight context for what the caller receives, though parameter explanation is not needed.

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 identifies the resource: 中证1000股指期权波动率指数QVIX-分时 (CSI 1000 index options volatility index QVIX intraday). It distinguishes from non-min siblings by including '分时' (minute-level), matching the tool name's 'min' suffix. However, it lacks an explicit verb like 'fetch' or 'retrieve', but the :return: statement implies it returns such data.

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 given on when to use this tool versus alternatives. There is no mention of suitable contexts, exclusions, or references to sibling tools (e.g., index_option_1000index_qvix without 'min'). The URL is a data source but provides no usage direction.

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