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he-yang

JSON to Excel MCP by WTSolutions

by he-yang

JSON to Excel MCP by WTSolutions - from data

json_to_excel_mcp_from_data

Convert JSON data to CSV format for spreadsheet analysis. Specify formatting options like nested mode, delimiters, and depth levels to structure your data.

Instructions

Convert JSON data to CSV data. If you do not have a Pro Code, please pass only the data parameter, and do not pass the options parameter.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
dataYesJSON data to be converted to CSV
optionsNoIf you do not have a Pro Code, please do not pass the options parameter in the request.
Behavior3/5

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

No annotations are provided, so the description carries the full burden. It discloses a key behavioral trait: the requirement for a Pro Code to use the options parameter, which is crucial for access control. However, it lacks details on output format (e.g., CSV structure, error handling, or performance limits), leaving gaps in behavioral context for a mutation-like conversion tool.

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 highly concise and front-loaded: two sentences with zero waste. The first sentence states the core purpose, and the second provides critical usage guidance. Every sentence earns its place by delivering essential information efficiently.

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 complexity (conversion with conditional parameters) and lack of annotations and output schema, the description is partially complete. It covers access control and basic usage but misses details on output behavior (e.g., CSV format, error cases) and doesn't fully compensate for the absence of structured output information, leaving some contextual gaps.

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%, so the schema already documents all parameters thoroughly. The description adds minimal value beyond the schema by reiterating the Pro Code constraint for the options parameter, but it doesn't provide additional semantic context (e.g., examples of JSON input or CSV output). Baseline 3 is appropriate as the schema does the heavy lifting.

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?

The description clearly states the tool's purpose: 'Convert JSON data to CSV data.' This is a specific verb ('Convert') and resource ('JSON data to CSV data'), and it distinguishes from the sibling tool 'json_to_excel_mcp_from_url' by specifying it works 'from data' rather than from a URL. The title reinforces this distinction.

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

Usage Guidelines5/5

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

The description provides explicit guidance on when to use this tool vs. alternatives: 'If you do not have a Pro Code, please pass only the data parameter, and do not pass the options parameter.' This clearly defines usage constraints based on user permissions, helping the agent avoid errors by specifying parameter exclusions for non-Pro users.

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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