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Necton MCP

by io.github.mcp-dir

openfinance_get_loan_detail

Read-onlyIdempotent

Returns full loan contract detail by id (GET /loans/:loanId): interestRates[] (taxType, ratePercentage, indexer), contractedFinanceCharges[], balloonPayments[], warranties[], installments schedule (installmentsCount, paidInstallments, numberOfInstallmentsRemaining, installmentFrequency), amortizationScheduled, CET, ipocCode and dates. Use after openfinance_list_loans to deep-dive on a specific contract. Pass loan_ids as an array (1-50). { results, errors } batch shape.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
loan_idsYes

TDQS

A4.2/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true. Description adds batch behavior (`{ results, errors }` shape) and limit (1-50). No contradiction; adds useful context beyond annotations.

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?

Description is a single long sentence with inline list; packs information but could be more structured (e.g., bullet points). Somewhat verbose but functional.

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?

No output schema exists, but description enumerates major fields (interestRates, charges, amortization, etc.) and mentions batch shape. Sufficiently complete for the tool's single parameter and read-only nature.

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

Parameters4/5

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

Schema coverage is 0%, but description explains parameter `loan_ids` is an array of strings with size 1-50 and notes batch response shape. This compensates for missing schema description.

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 tool returns full loan contract detail by ID and lists specific fields. It distinguishes from sibling openfinance_list_loans by explicitly stating 'Use after openfinance_list_loans to deep-dive on a specific contract.'

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?

Provides explicit usage guidance: 'Use after openfinance_list_loans to deep-dive on a specific contract.' Also mentions parameter range (1-50) and response shape. Does not state when not to use, but context is sufficient.

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

A4.1/5.0
Disambiguation4/5

Most tools have clearly distinct purposes (e.g., force_sync vs get_item_status, list_accounts vs get_accounts_detail). Minor overlap exists between list_transactions and list_transactions_by_item, and between get_account_balance and list_accounts (which also contains balance), but descriptions clarify when each should be used.

Naming Consistency4/5

All openfinance_* tools follow a consistent snake_case verb_noun pattern (list, get, force_sync, disconnect, update). The generic tools (authenticate, connect, marketplace, report_bug, show_version, toolkit_info) are also lowercase with underscores where needed, though they lack the openfinance prefix. No mixing of camelCase or chaotic patterns, so mostly consistent with minor deviation.

Tool Count3/5

25 tools is on the heavy side for a single server, but justified given the breadth of Open Finance operations (accounts, transactions, bills, loans, investments, connections, categories, provider status). The count is borderline heavy but not excessive for the domain, though some consolidation could be possible (e.g., merging get_account_balance into list_accounts).

Completeness5/5

The tool surface covers the full lifecycle for financial data: listing, getting details, forcing syncs, disconnecting, updating categories, checking provider status, and handling investments/loans/bills. No obvious dead ends; even connection management includes search, connect URLs, and re-authentication flows. The set appears comprehensive for its intended purpose.

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