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

No annotations are provided, and the description only gives a high-level purpose. It fails to disclose pagination, data volume, authentication requirements, or response structure, leaving the agent without critical operational context.

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 sentences, concise and front-loaded with purpose. The reference to 'FMP Cryptocurrencies Overview API' is slightly extraneous but not harmful. Keeps to essential information.

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 zero parameters and no output schema, the description is the sole source of behavioral information. It explains the tool's purpose but leaves the return format and scope of 'detailed information' unspecified, which is a moderate gap.

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 accepts zero parameters, so the schema is trivially covered (100%). The description adds no parameter semantics, but the baseline for zero-parameter tools is 4, which is appropriate.

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 it provides a comprehensive list of all cryptocurrencies traded worldwide, using a specific verb ('Access') and resource ('cryptocurrencies'). It distinguishes from sibling tools like getCryptocurrencyQuote by focusing on listing all, not individual quotes.

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?

No guidance on when to prefer this over getCryptoQuotes, getCryptocurrencyQuote, or other list endpoints. The 'inform your investment strategies' phrase is vague and doesn't provide decision criteria.

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