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Itaú MCP

by io.github.mcp-dir

openfinance_get_accounts_detail

Read-onlyIdempotent

Returns full account objects including extended creditData (additional cards, limits) per id (GET /accounts/:id). Pass account_ids as an array (1–50). { results, errors } batch shape. May include a provider_incident block when the Open Finance provider has an OPEN incident affecting a connected bank: credit limits and balances may be unreliable (e.g. a limit near 1,00) until the provider recovers. Do not present those values as real.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
account_idsYes

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Added
  2. Removed
  3. Added
  4. Removed
  5. Added
  6. Removed
  7. First observed

TDQS

A4.6/5.0
Behavior5/5

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

Annotations already declare readOnlyHint and idempotentHint, but the description adds critical behavior: batch response format { results, errors } and the provider_incident block warning about unreliable data during provider outages. This goes 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.

Conciseness4/5

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

Four sentences, all essential: purpose, parameter usage, response shape, and data reliability warning. No fluff, but could be slightly more streamlined.

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

Completeness5/5

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

For a retrieval tool with no output schema, the description covers the key aspects: what it returns, how to invoke it, the response format, and a critical caveat about provider incidents. Complete given the context.

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 the description compensates by detailing the array constraint (1-50 items) and the response shape, adding meaning beyond the bare schema definition.

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 that the tool returns full account objects with extended creditData, specifying the HTTP endpoint and batch structure. It distinguishes itself from sibling tools like list_accounts by emphasizing detail per ID.

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?

It explicitly instructs to pass account_ids as an array of 1-50 items, providing usage constraints. While it doesn't explicitly contrast with sibling tools, the batch shape and provider_incident warning guide appropriate use.

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

A4/5.0
Disambiguation3/5

The Open Finance tools have clear list/get pairs for each resource (accounts, transactions, loans, investments, bills), but the marketplace tool is a monolith combining search, describe, invoke, install, subscribe, and prompt library actions, causing ambiguity about which action to use. Additionally, openfinance_list_transactions and openfinance_list_transactions_by_item overlap in purpose but are distinguished by scope.

Naming Consistency3/5

The openfinance_* group follows a consistent verb_noun pattern (list, get, update, force_sync, etc.), but the platform tools (authenticate, connect, marketplace, show_version, report_bug, toolkit_info) use mixed bare verbs and nouns, creating two distinct conventions. Names like openfinance_list_transactions_by_item are longer but still consistent within the group.

Tool Count4/5

25 tools is at the heavy end, but the Open Finance domain alone justifies 17 tools covering distinct resources and operations. The platform tools add 8 more, though the marketplace tool bundles many sub-actions into one, inflating the effective count. The number is borderline but not excessive given the breadth of banking functionality.

Completeness5/5

The Open Finance surface is comprehensive with list/get for every major resource, plus support for sync, status, search, categories, and category updates. The platform tools cover authentication, connection status, marketplace operations, bug reporting, version, and toolkit state. No obvious gaps or dead ends in the workflow.

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