market_coingecko_coins_markets

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

No annotations are provided, and the description adds no behavioral context beyond the literal action. It does not mention pagination behavior, rate limits, response structure, or data coverage, all of which are relevant for an 8-parameter endpoint.

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 a single short sentence with no fluff. It is front-loaded with the core purpose. However, it is too sparse to be considered fully structured, which lowers it from a 5.

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 8 parameters, no output schema, and no annotations, the description is inadequate. It does not explain what data is returned (beyond price/market cap/volume), how pagination works, or how this endpoint differs from similar market_coingecko_* tools. Significant information is missing.

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 each parameter having a description. The tool description itself adds no parameter-level meaning, but the schema already documents fields like ids, page, order, and perPage. Baseline 3 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 the action (Get) and resource (coins with market data), and lists key fields (price, market cap, volume). However, it does not distinguish this from sibling tools like market_coingecko_simple_price or market_coingecko_coin, except for a vague 'most commonly used endpoint' claim.

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 explicit guidance on when to use this tool versus alternatives. The phrase 'most commonly used endpoint' implies it is a default choice but does not explain when to prefer it over other market endpoints or what limitations exist (e.g., pagination, filtering).

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