Circuitry MCP Server

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

With no annotations provided, the description carries the full burden of behavioral disclosure. 'Replace an entire row' implies a destructive mutation, but it doesn't specify whether this operation is reversible, what permissions are required, how it handles existing data, or what happens if the row doesn't exist. For a mutation tool with zero annotation coverage, this is inadequate.

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, clear sentence that efficiently communicates the core functionality without any unnecessary words. It's perfectly front-loaded and wastes no space on redundant 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 happens to the replaced data, whether the operation is atomic, what error conditions might occur, or what the tool returns. Given the complexity of row replacement in a sheet context, more behavioral context is needed.

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%, with all three parameters clearly documented in the input schema. The description doesn't add any additional semantic information about the parameters beyond what's already in the schema (nodeId, rowIndex, data). This meets the baseline expectation when schema coverage is complete.

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 ('Replace') and resource ('an entire row at a specific position'), making the tool's purpose immediately understandable. However, it doesn't explicitly differentiate from sibling tools like 'sheet.setCell' or 'sheet.setCells', which might also update sheet data but at different granularities.

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. With many sibling tools for sheet manipulation (e.g., sheet.setCell, sheet.setCells, sheet.fillRange), there's no indication of whether this is for bulk updates, specific use cases, or how it differs from other update methods.

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