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Standard Tools: getChangeNowSupportedCurrencies

getChangeNowSupportedCurrencies
Read-onlyIdempotent

Fetch supported currencies for cross-chain swaps, filtered by networks and search query to find available assets for your swap.

Instructions

Get supported currencies for cross-chain swaps

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
networksYesNetworks to filter currencies by
queryNoSearch query for currency name/ticker
Behavior2/5

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

Annotations already indicate readOnlyHint=true and idempotentHint=true. The description adds no behavioral context beyond these annotations, such as filtering behavior or output format.

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?

Single sentence, five words – very concise. However, it could benefit from slightly more structure (e.g., mention output form) without sacrificing brevity.

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?

No output schema, but the tool is simple. The description is adequate for its purpose but could be more explicit about the return value (e.g., list of currency objects).

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

Parameters3/5

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

Schema coverage is 100% with descriptions for both parameters. The description does not add any meaning beyond what the schema provides, so baseline 3 applies.

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 'Get supported currencies for cross-chain swaps' clearly states the verb (get) and resource (supported currencies) with specific context (cross-chain swaps). It distinguishes itself from sibling tools like getChangeNowSwapQuote.

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?

The description provides no guidance on when to use this tool vs alternatives. It does not mention when not to use it, or suggest related tools like getChangeNowSwapQuote for after selecting currencies.

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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