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tokenguard-mcp

tokenguard-mcp

by eltociear
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Remote

get_defi_tvl

Get the Total Value Locked (TVL) for a DeFi protocol by providing its slug (e.g., 'uniswap'). Data sourced from DeFiLlama.

Instructions

Get Total Value Locked (TVL) for a DeFi protocol from DeFiLlama

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "protocol": "<protocol>"
    },
    "name": "get_defi_tvl"
  }
}

Input Schema

NameRequiredDescriptionDefault
protocolYesProtocol slug (e.g. 'uniswap', 'aave', 'curve', 'lido')

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A3.8/5.0
Behavior3/5

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

With no annotations, the description carries the full burden. It adequately discloses the read-only nature of fetching TVL data, but does not elaborate on potential rate limits, response structure, or data freshness. No contradictions with annotations.

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

Conciseness5/5

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

The description is a single, clear sentence with no extraneous words. Every part is informative and earns its place.

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

Completeness4/5

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

For a simple tool with one parameter and a straightforward return value (TVL), the description is largely complete. It does not specify the return format, but the context of 'TVL' implies a numeric value, making it adequate.

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% and the description adds no further meaning beyond the schema's description of the 'protocol' parameter. The example values in the schema provide sufficient clarity.

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 the verb 'Get', the resource 'Total Value Locked (TVL) for a DeFi protocol', and the source 'DeFiLlama'. It effectively distinguishes from sibling tools like get_token_price or get_gas_fees by specifying TVL.

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

Usage Guidelines3/5

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

The description implies usage for retrieving TVL data but provides no explicit guidance on when to use this tool versus alternatives, nor does it mention prerequisites or exclusions. The context is implied by the tool's purpose.

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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