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

No annotations are provided, so the description carries the full burden. It discloses that the tool returns real-time price data (current, high, low, open) but does not mention side effects, read-only nature, error behavior, or rate limits. For a simple quote tool, this is adequate but not deeply transparent.

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 two concise sentences. The first sentence sets the action and scope, the second details the output fields. No redundant or filler content, and the structure is 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?

With no output schema, the description adequately conveys primary return fields and the broad scope (all cryptocurrencies). However, it could be more complete by noting symbol naming conventions or pointing to alternative tools for batch/short quotes, especially given the large sibling set. Still, it is sufficient for a simple single-parameter quote tool.

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 coverage is 100% with the 'symbol' parameter and an example (BTCUSD). The description does not add any additional detail about symbol format, aliases, or validation beyond what the schema provides, so the baseline of 3 applies.

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 tool's function with a specific verb ('Access') and resource ('real-time quotes for all cryptocurrencies'). It names the FMP Full Cryptocurrency Quote API and lists key data fields (current, high, low, open), distinguishing it from sibling tools like getCryptocurrencyShortQuote or batch quote 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 implies use for comprehensive cryptocurrency quotes but does not explicitly mention when to use this versus alternatives such as getCryptocurrencyShortQuote or getCryptocurrencyBatchQuotes. No exclusions or alternative tool references are provided.

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