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VautlixDevelopment

Vaultix MCP Server

vaultix_get_balance

Retrieve current account balance details including available and pending amounts for payment management.

Instructions

Get current account balance (available and pending)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Implementation Reference

  • Handler implementation for the vaultix_get_balance tool. It retrieves the current account balance by calling client.get('/balance').
    case 'vaultix_get_balance':
      return client.get('/balance')
  • Registration of the vaultix_get_balance tool in the tools array, including name, description, and empty input schema (no parameters required).
    {
      name: 'vaultix_get_balance',
      description: 'Get current account balance (available and pending)',
      inputSchema: {
        type: 'object',
        properties: {},
      },
    },
  • Input schema for vaultix_get_balance: an empty object (no input parameters).
    inputSchema: {
      type: 'object',
      properties: {},
    },
Behavior2/5

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

With no annotations, the description carries full burden but only states what the tool does without behavioral details. It doesn't disclose if this requires authentication, has rate limits, returns real-time data, or involves any side effects. For a financial tool with zero annotation coverage, this is a significant gap in transparency.

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 a single, efficient sentence that front-loads the core purpose ('Get current account balance') and adds necessary detail ('available and pending'). There is no wasted verbiage, and every word earns its place in conveying essential information.

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

Completeness3/5

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

Given the tool's simplicity (0 parameters, no output schema, no annotations), the description is adequate but incomplete. It explains what balance is retrieved but lacks context on authentication needs, data freshness, or error handling. For a balance-checking tool in a financial system, more behavioral context would be beneficial despite the low complexity.

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?

The tool has 0 parameters with 100% schema description coverage, so the schema fully documents the absence of inputs. The description adds value by specifying the balance components ('available and pending'), which provides semantic context beyond the empty schema. Baseline for 0 parameters is 4, and the description meets this by clarifying what balance information is retrieved.

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 clearly states the action ('Get') and resource ('current account balance') with specific components ('available and pending'). It distinguishes from siblings by focusing on balance retrieval rather than operations on charges, customers, products, etc. However, it doesn't explicitly differentiate from 'vaultix_list_balance_transactions' which might provide similar balance information.

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 'vaultix_list_balance_transactions' or 'vaultix_get_transactions_summary'. The description implies usage for checking balance status but lacks context about prerequisites, timing, or comparison with sibling tools.

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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