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dma9527

irs-taxpayer-mcp

by dma9527

get_retirement_accounts

Read-onlyIdempotent

Retrieve retirement account details including contribution limits, tax treatment, income limits, and tips to guide tax planning.

Instructions

Get details on retirement account types — contribution limits, tax treatment, income limits, and tips.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
accountTypeNoSpecific account (e.g., 'roth_ira', '401k', 'hsa', 'sep_ira'). Leave empty for all

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
textYes
errorNo
isErrorYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv1.0.1
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "$schema": "http://json-schema.org/draft-07/schema#",
      +  "additionalProperties": false,
      +  "properties": {
      +    "error": {
      +      "additionalProperties": false,
      +      "properties": {
      +        "code": {
      +          "type": "string"
      +        },
      +        "message": {
      +          "type": "string"
      +        },
      +        "suggestion": {
      +          "type": "string"
      +        }
      +      },
      +      "required": [
      +        "code",
      +        "message",
      +        "suggestion"
      +      ],
      +      "type": "object"
      +    },
      +    "isError": {
      +      "type": "boolean"
      +    },
      +    "text": {
      +      "type": "string"
      +    }
      +  },
      +  "required": [
      +    "text",
      +    "isError"
      +  ],
      +  "type": "object"
      +}
  2. First observedv0.5.3

TDQS

A3.8/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is fully covered. The description adds contextual value by specifying the content areas returned (limits, tax treatment, income limits, tips) without contradicting the annotations.

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 concise sentence that front-loads the action and resource, then lists specific content areas. Every word earns its place; there is no filler, repetition, or unnecessary detail.

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?

For a simple read-only lookup with one optional parameter and an output schema present, the description gives sufficient context to select and call the tool correctly. It would be slightly stronger with a pointer to sibling tools for strategic planning, but that gap is already reflected in the usage guidelines score.

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

Parameters3/5

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

Schema coverage is 100%, with the sole parameter accountType fully described including example values and empty behavior. The description adds no parameter-specific information, but none is needed given the schema's completeness; the baseline of 3 is appropriate.

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 uses a specific verb ('Get details') and identifies the resource ('retirement account types'), then enumerates key attributes (contribution limits, tax treatment, income limits, tips). This differentiates it from sibling tools like get_retirement_strategy or plan_retirement_withdrawals, though it does not explicitly disambiguate them.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies its usage context (retrieving reference details about retirement account types) but provides no explicit when-to-use guidance or alternatives. With several retirement-related sibling tools, an agent must infer the boundary between this and tools like get_retirement_strategy.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.