Crank Protocol

get_venue_risk_score

Read-onlyIdempotent

Composite venue risk score 0-100 (higher = safer), with breakdown.

Read-only. Folds custody tier (A self-custodial / B venue-custodied), multisig threshold, timelock, audit status, exploit history, TVL trend and program age into a transparent weighted score (score_breakdown returned so the number is auditable). Factual assessment, not financial advice.

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": {
      "venue": "<venue>"
    },
    "name": "get_venue_risk_score"
  }
}

Input Schema

Name	Required	Description	Default
`venue`	Yes
`caller_id`	No

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

First observedJul 27, 2026

TDQS

A3.5/5.0

Behavior4/5

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

Annotations already indicate readOnlyHint and idempotentHint. The description adds context about the internal factors (custody tier, multisig, etc.) and that the breakdown makes the score auditable, enhancing transparency beyond the 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 three sentences long, front-loads the main purpose (composite risk score with range), and every sentence adds value. No wasted words.

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?

Given the existence of an output schema, the description adequately covers the score range, breakdown, and factors. However, the lack of parameter explanation and any mention of pagination or limits leaves a minor gap.

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?

The input schema has 0% description coverage, and the description does not mention or explain the parameters 'venue' or 'caller_id', leaving their meaning and usage unclear. The description should compensate for the lack of schema descriptions.

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

Purpose4/5

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

The description clearly states the tool computes a composite venue risk score from 0 to 100 with a breakdown, and notes it is read-only and factual. However, it does not explicitly differentiate from similar sibling tools like get_risk_assessment or venue_risk_comparison.

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 obtaining a risk score with breakdown and states it is not financial advice, but provides no guidance on when to use this tool versus alternatives or when not to use it.

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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