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

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'real-time' and the scope ('wide range'), but does not explain response format, pagination, the effect of the 'short' parameter, or any caveats. This is minimal extra context beyond the stated purpose.

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 concise sentences with no filler. The first sentence immediately states the action and resource; the second adds relevant detail about the data returned. Every word contributes value.

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 low complexity (one optional parameter, no output schema), the description covers the core purpose and return fields adequately. However, it could improve by explicitly addressing how it differs from the many sibling crypto quote tools, making it slightly less than 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 sole parameter 'short' is fully described in the schema (100% coverage), so the description need not repeat it. However, the description adds no additional meaning about how 'short' affects the output, so it remains at the baseline of 3.

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 clearly states the verb ('Access') and resource ('real-time cryptocurrency quotes'), explicitly naming the FMP API and listing the data provided (prices, volumes, changes). The plural 'quotes' and 'wide range of digital assets' distinguish it from single-asset siblings like getCryptocurrencyQuote.

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 usage for tracking multiple cryptocurrencies ('wide range of digital assets') but does not explicitly contrast it with alternatives such as getCryptocurrencyQuote, getCryptocurrencyShortQuote, or getCryptocurrencyBatchQuotes. No explicit when-to-use or when-not-to-use guidance is provided.

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