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orancummins

Open Finance US MCP

by orancummins

generate_payment_success_indicators

Generate non-FCRA payment success indicators for a proposed payment using customer ID, account ID, and amount.

Instructions

Generate Non-FCRA Payment Success Indicators for a proposed payment.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
amountYes
account_idYes
customer_idYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
okYesTrue when the upstream HTTP status was < 400.
dataNoFinicity's native response body.
errorNoError summary when ok is False.
status_codeYesUpstream Finicity HTTP status code.
Behavior1/5

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

With no annotations, the description must disclose behavioral traits. It only states 'Generate' without indicating side effects (e.g., whether data is stored), authentication needs, rate limits, or what constitutes 'Non-FCRA' indicators. The description is insufficient for an agent to understand implications of invoking the tool.

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

Conciseness3/5

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

The description is a single sentence, which is concise. However, it sacrifices essential information for brevity. The structure is front-loaded but incomplete.

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

Completeness1/5

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

Given the tool's complexity (generation with 3 parameters, output schema, numerous sibling tools), the description is severely lacking. It does not differentiate output or behavior from similar tools, nor does it provide enough context for correct invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 0%, meaning parameters have no descriptions. The tool description does not explain what 'customer_id', 'account_id', or 'amount' represent or how they are used. It adds no semantic value beyond the parameter names.

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 ('Generate'), the specific resource ('Non-FCRA Payment Success Indicators'), and the context ('for a proposed payment'). It explicitly distinguishes from the sibling 'generate_fcra_payment_success_indicators' by including 'Non-FCRA'.

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 provided on when to use this tool versus alternatives like 'generate_fcra_payment_success_indicators' or 'get_payment_success_indicators'. There is no mention of prerequisites, such as requiring a customer or account setup, or scenarios where this tool is appropriate.

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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