Circuitry MCP Server

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

With no annotations provided, the description carries full burden for behavioral disclosure. It states this is a 'Set' operation (implying mutation/write), but provides no information about permissions required, whether data overwrites existing content, error conditions, or what happens with the optional parameters when not provided. This is inadequate for a mutation tool with zero annotation coverage.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence that directly states the tool's purpose with zero wasted words. It's appropriately sized and front-loaded with the essential information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a mutation tool with no annotations and no output schema, the description is insufficient. It doesn't explain what 'Set data' means operationally (overwrite? append?), doesn't address error conditions or permissions, and provides no context about the sibling tools that appear to serve similar functions. The agent would struggle to use this tool correctly without trial and error.

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

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

The schema description coverage is 100%, so all parameters are documented in the schema. The description adds no additional parameter information beyond what's already in the schema (documentId is optional and uses active, data is a 2D array, sheetIndex is optional and uses active sheet). This meets the baseline for high schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('Set data') and target ('in a sheet of a standalone spreadsheet'), providing a specific verb+resource combination. However, it doesn't distinguish this tool from sibling tools like 'sheet.setData' or 'spreadsheet.setCell', which appear to serve similar spreadsheet data manipulation purposes.

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

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

The description provides no guidance on when to use this tool versus alternatives. There are multiple sibling tools for spreadsheet data manipulation (sheet.setData, spreadsheet.setCell, sheet.setCells, etc.), but no indication of which scenarios call for this specific tool over others.

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