get_last_forex_quote

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

The description adds minimal behavioral context beyond the readOnlyHint annotation. It specifies 'most recent' which provides temporal context, but doesn't address rate limits, authentication requirements, data freshness, or what constitutes a 'forex quote' versus other quote types. With annotations covering the read-only aspect, the description adds some value but lacks comprehensive behavioral disclosure.

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 extremely concise at just one sentence with no wasted words. It's front-loaded with the core purpose and uses straightforward language. While more detail would be helpful, what's present is efficiently structured.

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?

Given the tool's relative simplicity (read-only forex quote retrieval) and the presence of both annotations and an output schema, the description is minimally adequate. However, with 0% schema parameter documentation and multiple similar sibling tools, the description should provide more differentiation and parameter guidance to be truly complete for agent use.

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?

With 0% schema description coverage for 3 parameters, the description carries full burden for explaining parameters but provides no information about 'from_', 'to', or 'params'. The description mentions 'forex quote' which implies currency pairs, but doesn't specify format (e.g., 'USD/EUR'), required syntax, or what the 'params' object might contain. This leaves significant gaps in parameter understanding.

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's purpose as 'Get the most recent forex quote', which is a clear verb+resource combination. However, it doesn't differentiate this tool from sibling tools like 'get_last_quote' or 'get_real_time_currency_conversion', leaving ambiguity about when to use this specific forex tool versus other quote-related tools.

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 provides no guidance on when to use this tool versus alternatives. With multiple sibling tools that appear to handle quotes, currency conversions, and forex data, there's no indication of when this specific forex quote tool is appropriate versus tools like 'get_last_quote' or 'get_real_time_currency_conversion'.

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