cellStyle_create

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

No annotations are provided, so the description carries full behavioral burden. 'Create' implies mutation, but it says nothing about requiring an open document, permission or persistence needs, whether the new style is applied anywhere, or what happens with the document_id default. It only vaguely gestures at the target document.

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 waste, but so short that it is under-specified rather than concise. Brevity here comes at the cost of required 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 an 11-parameter mutation tool with no annotations, no output schema, and almost no parameter documentation, the definition is far too thin. An agent lacks the information needed to invoke it correctly.

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?

With 11 parameters and only 9% schema description coverage (only document_id documented), the description mentions none of them — not name, basedOn, fillColor, insets, stroke, or paragraphStyle. It fails to compensate for the schema gap in any way.

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?

States a specific verb and resource ('Create a cell style'), which is unambiguous about the operation. However, it offers no differentiation from close siblings like tableStyle_create, style_createParagraph, or cellStyle_list — an agent must infer which style family applies.

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 guidance on when to use this versus the many other style-creation tools, nor any prerequisites or exclusions. The only context is the phrase 'in the active document', which is implied usage at best.

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