get_current_time

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 timezone of the result (UTC+8), which is the key behavioral fact an agent needs to interpret the value. For a trivial local-clock read there are no auth, rate-limit, or destructive concerns to disclose, so the remaining gap is minor.

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?

Two short sentences, zero waste; the resource and its scope come first and the mandatory-usage rule is front-loaded right after.

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 no-param, no-output-schema utility, the description covers what it does, where the time comes from (local, UTC+8), and the workflow role it plays. It could say a bit more about the returned format, but nothing essential for correct invocation 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?

Zero parameters, so per the rubric the baseline is 4. The schema is empty and 100% covered, and the description adds the timezone context that the empty schema cannot convey.

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?

States a specific verb ('获取') and resource ('当前本地时间') plus a concrete scope qualifier (UTC+8), which disambiguates it from the calendar/task/email siblings that also deal with time. An agent can tell exactly what this returns without opening anything else.

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?

Explicitly tells the agent when to call it: before handling relative-time requests, as a reference-time anchor, with a strong '【必须】' marker. It stops short of naming alternatives or when-not-to-call conditions, but the trigger condition is unambiguous.

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