Excel MCP Server

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

Annotations already provide key behavioral traits: readOnlyHint=false, destructiveHint=true, openWorldHint=true, idempotentHint=false. The description adds no additional behavioral context beyond what annotations declare. It doesn't explain what 'destructive' means in this context (e.g., whether it modifies the file), nor does it address rate limits, authentication needs, or output format. No contradiction with annotations exists.

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 function without unnecessary words. It's appropriately sized and front-loaded with the core purpose.

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 moderate complexity (1 parameter, no output schema) and rich annotations, the description is minimally adequate. It states what the tool does but lacks context about output format, error conditions, or when to use versus siblings. With annotations covering safety and idempotency, the description meets basic requirements but could be more complete.

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 100% (the single parameter 'fileAbsolutePath' is fully described in the schema as 'Absolute path to the Excel file'). The description adds no parameter information beyond what the schema provides. With high schema coverage, the baseline score of 3 is appropriate.

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 tool's purpose: 'List all sheet information of specified Excel file' - a specific verb ('List') and resource ('sheet information of specified Excel file'). It distinguishes from siblings like excel_read_sheet (which reads data) and excel_write_to_sheet (which writes data), though it doesn't explicitly mention these distinctions.

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 when this tool is appropriate (e.g., for metadata discovery) versus when to use siblings like excel_read_sheet (for data extraction) or excel_copy_sheet (for sheet manipulation). No exclusions or prerequisites are stated.

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