Get latest silver (XAG) price

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

No annotations are provided, so the description must disclose behavior, but it only says 'shortcut' and 'latest silver rate.' It does not mention the default quote behavior, response structure, or plan limitations that apply to the quote parameter, leaving meaningful gaps for an agent.

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 front-loaded sentence that efficiently conveys purpose and the key differentiator without redundant or filler content.

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 one-parameter tool this captures the core operation, but without an output schema or annotations it leaves unspecified details such as the default quote currency and the shape of the returned rate, so it is adequate yet not fully complete.

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 only parameter, quote, is fully documented in the input schema, including the Premium/Plus-only restriction, so the description adds no parameter-specific meaning beyond what the schema already provides. Baseline 3 applies because schema coverage is 100%.

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 the tool provides the latest silver (XAG) rate and frames it as a shortcut that avoids passing a symbols list, distinguishing it from general rate tools like get_latest_rates and aligning with the analogous get_gold_price tool.

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?

It clearly communicates when to use the tool—when only the latest silver rate is needed and a symbols list is undesirable. It implies an alternative (the general latest-rates tool) but does not name it explicitly or list when not to use this tool.

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