Scientific Calculator

Hexadecimal Converter

calculator_hex_convert

Read-only

Convert hexadecimal (0-9, A-F) to decimal, binary, and octal.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "value": "<value>"
    },
    "name": "calculator_hex_convert"
  }
}

Input Schema

Name	Required	Description	Default
`value`	Yes	Hexadecimal string.

Output Schema

Name	Required	Description	Default
`octal`	No
`binary`	No
`decimal`	No
`expression`	Yes
`hexadecimal`	No

Schema Changelog

Changes observed during successful MCP inspections.

First observedOct 23, 2026

TDQS

A3.6/5.0

Behavior3/5

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

The annotations already declare this as a safe, non-destructive, closed-world read operation. The description adds the valid hexadecimal character set and target bases, but does not mention case sensitivity, invalid input behavior, or input length limits.

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 clear sentence with no filler and is front-loaded with the operation. Every phrase contributes to identifying the conversion.

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 one-parameter conversion tool, the description is sufficient when combined with full schema coverage, annotations, and an output schema. The main remaining gap is not explaining how this differs from siblings like calculator_base_convert.

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 description coverage is 100%, and the schema already documents the sole parameter as a hexadecimal string with examples. The description adds only the allowed (0-9, A-F) character set, which is useful but not a substantial expansion over the structured fields.

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 and resource: convert hexadecimal input into decimal, binary, and octal. The conversion direction is clear, though it does not explicitly distinguish itself from nearby generic or single-base sibling converters such as calculator_base_convert.

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 when to use it by naming hexadecimal as input and three target bases, but it gives no explicit alternatives or exclusions. An agent can infer the use case, but must compare sibling names to avoid choosing a generic base converter.

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

All Scientific Calculator tools Inspect

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