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toml_to_json

Convert TOML to JSON for programmatic access. Ideal for parsing TOML configuration files into structured JSON data.

Instructions

Convert TOML format to JSON.

Use this to transform TOML configuration files (e.g. pyproject.toml)
into JSON for programmatic access.

Parameters:
    toml — TOML-formatted string to convert.

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": {
      "toml": "<toml>"
    },
    "name": "toml_to_json"
  }
}

Input Schema

Name	Required	Description	Default
`toml`	Yes

Output Schema

Name	Required	Description	Default
`result`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

First observedv2.4.1Jun 22, 2026

TDQS

A4.2/5.0

Behavior3/5

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

With no annotations, the description carries the burden. It describes the input (TOML string) and output (JSON) but does not discuss error handling, encoding issues, or limitations. For a simple conversion, the transparency is adequate but not comprehensive.

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 very concise: two sentences plus a parameter note. It front-loads the core purpose and provides a concrete example. No redundant information.

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?

The description covers the input sufficiently. Since an output schema exists (as per context signals), the description need not explain return values. For a straightforward conversion tool, it is complete enough.

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 parameter 'toml' is described as 'TOML-formatted string to convert', adding meaning beyond the schema which only provides the title. Since schema coverage is 0%, the description fully compensates for the missing schema documentation.

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?

Description clearly states the verb 'convert' and the resources 'TOML format to JSON'. It distinguishes itself from siblings like ini_to_json or convert_csv_to_json by specifying the format. The use case example further clarifies the tool's purpose.

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?

Explicitly says 'Use this to transform TOML configuration files (e.g. pyproject.toml) into JSON for programmatic access', which provides clear context when to use. While it doesn't mention when not to use, the sibling tool list implicitly provides alternatives.

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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