Getcurrentdate

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

No annotations are provided, so the description carries the full burden. It discloses the output format (yyyy-MM-dd) and implicitly that this is a side-effect-free read, which is genuinely useful. However it omits timezone/clock basis, which is the one behavioral detail that actually matters for a 'current date' tool.

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?

A single sentence with the action front-loaded and the return format trailing as supporting detail. Every clause earns its place and there is no padding.

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?

With no output schema, the description usefully specifies the return format, which is the key thing an agent needs. The remaining gap is the unspecified timezone/locale, which affects what 'current date' resolves to; for an otherwise trivial tool this is a minor omission.

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 tool takes zero parameters, so the baseline of 4 applies. The description correctly avoids inventing parameter semantics that do not exist, and the empty schema is consistent with the text.

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 states a specific verb and resource ('获取当前日期' / get current date) and adds the exact return format, so the agent knows precisely what it produces. It does not explicitly differentiate itself from siblings, but the sibling set (all flight/weather lookups) makes the distinction self-evident.

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?

Usage is only implied: an agent infers it should call this when it needs today's date. There is no explicit when-to-use statement, no mention of prerequisites, and no named alternatives. For a zero-parameter utility that is acceptable but leaves the routing entirely to inference.

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