Fetch the current Cardano (ADA) price in USD to support market analysis and DeFi decisions.
Get the current ADA price in USD
This tool declares no required parameters. Add optional parameters from the input schema as needed.
{
"id": 1,
"jsonrpc": "2.0",
"method": "tools/call",
"params": {
"arguments": {},
"name": "get_ada_price"
}
}| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Changes observed during successful MCP inspections.
v0.2.14Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description carries full disclosure burden. States 'current' implying real-time data but fails to specify data source (oracle, DEX, aggregator), staleness tolerance, error conditions (e.g., oracle failure), or confirmation that this is read-only.
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?
Seven words with zero redundancy. Immediately front-loaded with action and subject. No filler or unnecessary elaboration.
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?
Minimally adequate for a zero-parameter tool, but lacks critical financial context: return value structure (number, string, object?), precision/decimals, and whether the price includes fees or is spot. Absence of output schema and annotations leaves significant gaps for a price oracle.
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?
Tool accepts zero parameters (empty schema), establishing baseline of 4. Description correctly implies a simple configuration-free getter requiring no inputs, consistent with the schema.
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?
Clear verb ('Get') and resource ('ADA price') with specific currency (USD). Unambiguously identifies the target cryptocurrency, distinguishing it from siblings like get_indy_price and generic get_asset_price, though it doesn't explicitly clarify the Cardano context or protocol source.
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?
Provides no guidance on when to use this specific tool versus the generic get_asset_price (which could theoretically fetch ADA) or get_indy_price. No mention of caching, rate limits, or prerequisites for accurate price data.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.