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danchev

openmarkets

by danchev

get_top_cryptocurrencies

Fetch a list of top cryptocurrencies ranked by market cap or volume. Specify the number of results to retrieve.

Instructions

Retrieve a list of the top cryptocurrencies by market cap or volume.

Args: count (int, optional): Number of top cryptocurrencies to fetch. Defaults to 10.

Returns: list[CryptoFastInfo]: List of top cryptocurrencies.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
countNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations provided, but the description omits crucial behavioral details like whether the list is sorted by market cap or volume, any rate limits, or authentication requirements.

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 concise and front-loaded with the core purpose, though the docstring format (Args/Returns) adds unnecessary verbosity for a single parameter.

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

Completeness3/5

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

While the tool is simple with one parameter and an output schema exists, the description lacks details on the meaning of 'top' (market cap vs volume) and any limitations, making it incomplete for fully informed use.

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 coverage is 0%; the description only repeats the parameter name and default value without adding constraints like valid range or behavior for edge cases.

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?

The description clearly states it retrieves top cryptocurrencies by market cap or volume, distinguishing it from sibling crypto tools like get_crypto_info or get_crypto_history.

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 get_crypto_info for specific details or get_crypto_history for historical data.

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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