coingecko_category_coins

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

With no annotations, the description should disclose behavioral traits. It only mentions that the endpoint supports the vs_currency enum and returns normalized coin rows. It does not describe pagination behavior, rate limits, or potential side effects.

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 brief (two sentences) and front-loaded with the tool's main purpose. However, the first sentence ('CoinGecko category coins') is somewhat redundant with the tool name.

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 many sibling CoinGecko tools, the description provides adequate core function but lacks differentiation and contextual cues. It does not explain 'normalized coin rows' or the return structure, which is needed since there is no output schema.

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%, so the baseline is 3. The description adds marginal value by noting that vs_currency supports a documented enum, but it does not elaborate on the slug, page, or limit parameters beyond what the schema provides.

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 returns normalized coin rows from a CoinGecko public category page, specifying the resource and action. It distinguishes from sibling tools like coingecko_categories (which lists categories) and coingecko_coin (which gets a single coin) by focusing on coins within a category.

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 is provided on when to use this tool versus alternative CoinGecko tools (e.g., coingecko_markets, coingecko_gainers_losers). There is no mention of prerequisites, context for use, or when to avoid this tool.

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