set_cell_width

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

Despite no annotations, the description only adds the DXA conversion detail. It does not disclose side effects (e.g., whether it modifies other cells), required permissions, or error conditions. A simple setter could benefit from stating that width_mm is converted to internal units.

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 sentence, front-loading the action and key detail (DXA). It is concise but slightly terse; a second sentence about units or conversion would improve clarity.

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 setter tool with an output schema (likely confirming success), the description covers the core action. However, it omits context about the DXA conversion and assumes the agent knows table indexing. It is minimally adequate 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 coverage is 0% and the description provides no additional meaning for the four parameters. While parameter names are self-explanatory, the description does not clarify expected ranges or formatting, leaving ambiguity.

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) and resource (width of a table cell) with specific unit (millimetres) and storage format (DXA). It distinguishes from sibling tools like set_column_widths (which operates on entire columns) and set_row_height.

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?

No guidance on when to use this tool, prerequisites, or alternatives. For example, it does not indicate that the cell must exist in the document, nor does it suggest using set_column_widths for setting column widths instead of individual cells.

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