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freeagent-mcp-server

freeagent-mcp-server

by samaxbytez

freeagent_get_opening_balances

Read-only

Retrieve opening balances from the FreeAgent balance sheet to establish accurate starting figures for accounting reports and reconciliation.

Instructions

Get the opening balances from the FreeAgent balance sheet

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "freeagent_get_opening_balances"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.3.0

TDQS

B3.1/5.0
Behavior2/5

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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered; the description adds no behavioral detail beyond the title-level purpose. It says nothing about the accounting period the opening balances are taken from, whether a company is inferred, or what happens if no opening balances exist.

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?

A single short sentence with the resource front-loaded and no filler. Nothing is wasted, though nothing is elaborated either.

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?

For a zero-parameter read tool this is close to sufficient, but there is no output schema, so the description is the only place that could explain the shape of the returned opening balances (e.g. account-level debit/credit figures). 'Opening balances' is domain jargon left undefined.

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 takes zero parameters, so there is no parameter semantics burden — baseline 4 applies. The description correctly implies the call is unfiltered and requires no arguments.

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?

States a specific verb ('Get') and resource ('opening balances ... from the FreeAgent balance sheet'), which is clearly distinct from siblings like freeagent_get_balance_sheet and freeagent_get_trial_balance_opening. It stops short of explicitly contrasting itself with those near-neighbors, so a 4 rather than a 5.

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?

There is no when-to-use guidance and no mention of alternatives, even though freeagent_get_balance_sheet and freeagent_get_trial_balance_opening are obvious near-overlaps. The agent must infer from the noun phrase alone that this returns opening (not period-end) figures.

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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