kraken_get_server_time

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

With no annotations provided, the description carries the full burden. The verb 'Fetch' clearly implies a read-only, non-destructive action, which is a useful behavioral hint. However, it does not disclose any further details such as whether the endpoint is public, requires authentication, or has rate limits. It adds minimal value beyond the tool name.

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 a single, concise sentence that immediately states the action and target. There is no redundant wording or filler, making it optimally concise and front-loaded.

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 tool with no parameters, a clear action, and an existing output schema, the description is sufficiently complete. It tells the agent exactly what the tool does. While it lacks explicit usage alternatives, the tool's simplicity and uniqueness among siblings make the description adequate without further context.

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 has zero parameters, so the input schema is empty. According to the guidelines, a baseline of 4 is appropriate when there are no parameters. The description does not need to explain parameters, and none are missing.

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 uses the specific verb 'Fetch' and clearly identifies the resource as 'the current time according to the Kraken server'. This directly states what the tool does and differentiates it from sibling tools like kraken_get_ticker_info or kraken_add_order, which serve entirely different purposes.

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 implies the tool should be used when an agent needs the current Kraken server time, but it provides no explicit guidance on when not to use it or mention of alternatives. It is not misleading, but it offers no deeper usage context beyond the obvious.

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