get_datetime

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

No annotations are provided, so the description must carry the burden. It conveys a read-only intent with 'Get' and hints at return format through the example, but it does not clarify timezone behavior, formatting guarantees, or the absence of side effects beyond what is inferable.

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 a concrete example; no filler. The core behavior is front-loaded and the example grounds the expected output.

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-required-parameter tool, the description plus schema and sibling context cover the essential call contract. It only lacks explicit guidance on choosing among get_datetime/get_date/get_time and a more formal output contract, but the example compensates.

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 100%; the only parameter, timezone, is already documented with allowed values and default. The description adds no extra meaning beyond the example, so it meets the baseline but does not exceed it.

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 action and resource: 'Get the current date and time', with an example output. It is clear but does not explicitly contrast itself with sibling tools get_date and get_time, so it misses the strongest differentiation credit.

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 gives no guidance on when to choose this tool over get_date or get_time, and no exclusions or prerequisites. The intended use is only implied by the phrase 'current date and time'.

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