Crank Protocol

register_referrer

First-touch bind an onboarded agent wallet to an approved integrator.

First-touch wins: a wallet already attributed to any integrator keeps that binding. Requires the integrator be approved; rejects a self-referral.

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": {
      "integrator_wallet_address": "<integrator_wallet_address>",
      "referred_wallet_address": "<referred_wallet_address>"
    },
    "name": "register_referrer"
  }
}

Input Schema

Name	Required	Description	Default
`caller_id`	No
`referred_wallet_address`	Yes
`integrator_wallet_address`	Yes

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

First observedJul 27, 2026

TDQS

A4.1/5.0

Behavior4/5

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

Annotations indicate mutation but are sparse. The description adds behavioral details: first-touch wins (no override if already bound), rejection reasons, and the need for integrator approval. This extends beyond annotation info.

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 two sentences, front-loaded with the core action, and contains no extraneous information. Every word adds value.

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?

Given the tool's simplicity and the presence of an output schema, the description covers the essential behavior and constraints. It lacks parameter-level detail but is otherwise complete for usage decisions.

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%, so the description must compensate. However, it does not explain each parameter's purpose (e.g., mapping 'referred_wallet_address' to agent wallet, 'integrator_wallet_address' to integrator, or the optional 'caller_id'). The agent must infer from context.

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 action: 'bind an onboarded agent wallet to an approved integrator.' It includes 'first-touch wins' and distinguishes from sibling tools like register_agent and register_integrator by specifying the binding behavior and conditions.

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

Usage Guidelines4/5

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

The description explains when to use (first attribution) and when not (already bound, self-referral) with 'requires the integrator be approved; rejects a self-referral.' It does not explicitly mention alternative tools, but the context is clear.

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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