Pre-install canonical-identity verification

verify_candidate

Verify canonical identity of an MCP server/skill candidate. $0.05/call x402 (X-PAYMENT header), one free per operator ever, plan covers 400 fresh/mo + unlimited cached.

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": {
      "candidate": "<candidate>"
    },
    "name": "verify_candidate"
  }
}

Input Schema

Name	Required	Description	Default
`candidate`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

First observedOct 21, 2026

TDQS

B3/5.0

Behavior3/5

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

No annotations are provided, so the description must carry behavioral disclosure. It usefully discloses payment via x402/X-PAYMENT, the free-call policy, and monthly/cached quota behavior, but it does not explain verification criteria, response behavior, or error cases.

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 and front-loads the tool's purpose before the commercial details. Every sentence adds relevant information without wasted wording.

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

Completeness2/5

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

With no annotations, no output schema, and a nested-object input with no schema descriptions, the definition is missing important context such as input shape and return behavior. The commercial terms are useful, but the tool contract remains under-specified.

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 description coverage is 0% and the sole parameter is a nested object. The description only implies that 'candidate' is an MCP server/skill candidate; it does not describe the object structure or required fields, leaving the agent without enough information to construct valid input.

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 states a specific verb and resource: 'Verify canonical identity of an MCP server/skill candidate.' It is clear what the tool does, but it does not differentiate from the sibling tools genesis_pin or get_receipt.

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 gives pricing and quota information but no guidance on when to use this tool versus alternatives. It mentions 'one free per operator ever' and plan limits, but those are commercial constraints rather than usage criteria.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

All Pre-install canonical-identity verification tools Inspect

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