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crypto_top_coins

Retrieve top cryptocurrencies ranked by market cap via CoinGecko. Specify currency, page, and results per page for tailored data.

Instructions

Get top cryptocurrencies by market cap from CoinGecko.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
vs_currencyNo
per_pageNo
pageNo
Behavior2/5

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

With no annotations, the description should disclose behaviors like pagination, rate limits, or data freshness. It only states the basic function, leaving important behavioral traits undisclosed.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence with no redundancy. However, it is so brief that it sacrifices important details, balancing conciseness with adequacy.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the complexity of the tool and lack of output schema, the description omits return format, parameter defaults, and error handling. It is insufficient for an agent to fully understand tool behavior.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema has 3 parameters with 0% description coverage. The description does not explain vs_currency, per_page, or page parameters, failing to add meaning beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states verb 'Get', resource 'top cryptocurrencies by market cap', and source 'from CoinGecko'. It effectively distinguishes from sibling tools like crypto_price or crypto_search, which have different purposes.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance on when to use this tool vs alternatives such as crypto_trending or crypto_coin. It does not mention prerequisites, limitations, or preferred scenarios.

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

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