RunOnProof

run_uk_payment_authorization

Read-onlyIdempotent

Paid x402 UK tool for gb.solution.payment_authorization.v1 (LIMITED). Claims are limited to the named official sources.

Input Schema

TableJSON Schema

Name	Required	Description
`payee`	Yes
`amount`	Yes	Positive decimal payment amount in the declared currency; not the x402 fee.
`invoice`	Yes
`currency`	Yes	ISO 4217 currency code for the business payment instruction.
`supplier`	Yes
`vendor_change`	No
`company_number`	Yes	Companies House company number, including any two-letter prefix when applicable.
`idempotency_key`	Yes	Caller-generated key. Send the identical value in the Idempotency-Key header.

Output Schema

TableJSON Schema

Name	Required	Description
`policy`	Yes
`result`	Yes	Offer-specific facts and machine-action inputs; interpret with decision, coverage and limitations.
`payment`	Yes
`coverage`	Yes	Country, population and explicit coverage limitations.
`decision`	Yes
`evidence`	Yes	Source-scoped evidence references; absence is never a clean finding.
`replayed`	No
`conditions`	Yes
`request_id`	Yes
`delivery_id`	No
`limitations`	Yes
`valid_as_of`	Yes
`valid_until`	Yes
`execution_id`	No
`reason_codes`	Yes
`authorization`	Yes
`source_health`	Yes
`machine_action`	Yes
`schema_version`	Yes
`economic_activity`	Yes
`product_or_solution`	Yes
`required_information`	Yes

TDQS

C2.7/5.0

Behavior3/5

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

Annotations already declare readOnlyHint=true and idempotentHint=true, and the description adds useful context: it is 'Paid', uses 'x402', and limits claims to official sources. This provides some extra behavioral insight, but important traits like rate limits, authentication requirements, or what 'LIMITED' means operationally are still missing.

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

Conciseness4/5

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

The description is two short sentences with no waste—each sentence adds information and the main subject is front-loaded. However, the extreme brevity contributes to the overall lack of clarity, though the structure itself is efficient.

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?

Given 8 parameters, nested objects, an output schema, and a complex domain (payment authorization), this description is severely under-specified. It does not explain what the tool returns, how payments are authorized, what the 'LIMITED' mode restricts, or any preconditions required.

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 description mentions none of the 8 parameters. With schema description coverage at 50%, the schema partially documents parameters, but the description does not compensate for the remaining gaps or offer any semantic guidance on how to use parameters like supplier, invoice, or vendor_change.

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

Purpose3/5

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

The description identifies the tool as a 'Paid x402 UK tool for gb.solution.payment_authorization.v1 (LIMITED)' and mentions 'named official sources', which gives some domain context. However, it lacks a specific verb (e.g., 'run', 'submit', 'check') and does not clearly distinguish from sibling payment authorization tools, making the exact purpose vague.

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?

No guidance is given on when to use this tool versus alternatives. The description notes that it is 'LIMITED' and that claims are restricted to 'named official sources', but it does not explain when this limitation applies or when another payment authorization tool should be selected instead.

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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TDQS

C2.4/5.0

Disambiguation2/5

Multiple tools appear to address the same action with only country or payment-model differences, such as company_check/run_uk_company_check, approve_supplier/approve_uk_supplier, authorize_payment/run_uk_payment_authorization, and screen_restricted_party/screen_restricted_business_party. Even with descriptions, an agent will struggle to pick the intended tool reliably.

Naming Consistency2/5

Naming mixes bare global verbs (company_check, approve_supplier, authorize_payment) with UK-prefixed variants (run_uk_company_check, approve_uk_supplier, authorize_uk_business_payment), plus free-form names like counterfactual, preflight, quote, and capabilities. There is no single consistent verb_noun or country-modifier convention across the set.

Tool Count2/5

46 tools is far beyond the typical well-scoped MCP surface, and the set carries heavy duplication through global/UK/free/paid variants. While the domain may justify multiple country-specific operations, the tool count itself will overwhelm agents and make selection harder.

Completeness4/5

The server covers the main compliance lifecycle well: discovery (capabilities, preflight, quote, resolve_agent_intent), verification, supplier approval, payment authorization, invoice matching, passport issuance/refresh, and verification receipts. Minor gaps exist around explicit cancellation/revocation or list/search operations, but core workflows have no major dead ends.

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