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

Annotations already declare the mutation profile (readOnlyHint=false, idempotentHint=false, openWorldHint=true, destructiveHint=false), so the safety story is covered elsewhere. The description adds no behavioral context beyond that: it does not say where in the document the table is inserted, whether an existing file is required, whether existing content is shifted, or how headers/rows map to table styling.

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?

A single front-loaded sentence with no filler or redundant clauses. The only inefficiency is the bracketed server-name prefix, which conveys nothing about the tool's behavior.

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 simple three-parameter insert tool with full schema coverage and no output schema, the description covers the core action but omits practical details such as insertion position, file-existence requirements, and the result of the call. Adequate as a minimum viable definition, but incomplete for correct invocation in edge cases.

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%, with all three parameters (filename, headers, rows) documented in the schema itself. The description's phrase "column headers and rows" loosely mirrors the headers/rows params but adds no syntax, formatting, or constraint detail beyond the schema.

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 states a specific verb ("Insert") and resource ("structured table with column headers and rows") plus the target artifact ("a Word document"). It is distinguishable from siblings like add_heading or add_paragraph by the resource named, though it never explicitly contrasts with them.

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?

There is no when-to-use guidance, no prerequisites (e.g. does the .docx need to exist first?), and no mention of alternatives such as adding a paragraph or an Excel table instead. The only guidance is the implied context of writing into a Word document.

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