Excel Finance MCP

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. 'Find and replace' implies a mutation operation, but the description doesn't specify whether it's destructive (e.g., overwrites data irreversibly), requires specific permissions, handles errors (e.g., if worksheet doesn't exist), or has side effects like affecting formulas. For a mutation tool with zero annotation coverage, this is a significant gap in transparency.

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 with zero waste—'Find and replace text in a worksheet' is front-loaded and directly conveys the core action. Every word earns its place, making it highly concise and well-structured for quick comprehension.

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?

Given the tool's complexity (a mutation operation with 5 parameters), lack of annotations, 0% schema description coverage, and no output schema, the description is incomplete. It doesn't address behavioral risks, parameter meanings, or expected outcomes, leaving the agent inadequately informed for safe and effective use.

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?

Schema description coverage is 0%, meaning none of the 5 parameters are documented in the schema. The description mentions 'text' but doesn't explain any parameters like 'worksheetName', 'searchText', 'replaceText', 'matchCase', or 'matchEntireCell'. It fails to compensate for the schema's lack of documentation, leaving parameters semantically unclear.

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 'Find and replace text in a worksheet' clearly states the verb ('find and replace') and resource ('text in a worksheet'), making the tool's purpose immediately understandable. However, it doesn't specifically differentiate from sibling tools like 'excel_conditional_formatting' or 'excel_data_validation' that might also manipulate worksheet content, so it doesn't reach the highest score.

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. It doesn't mention prerequisites (e.g., an open workbook), exclusions (e.g., not for formulas), or related tools like 'excel_read_worksheet' for inspection or 'excel_write_worksheet' for broader edits. This leaves the agent with minimal context for appropriate selection.

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