set_theme_stylebox

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

No annotations are provided, so the description carries full burden. It only states the action 'set' without disclosing side effects, like whether existing StyleBoxes are overwritten, if changes are immediately visible, or if there are any validation rules. This is minimal for a mutation tool.

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 very concise (one sentence), which is positive, but it lacks structure and additional helpful sections. It fits the definition of concise but sacrifices completeness. It is adequately sized for a simple action but could be more informative.

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 complexity (4 params, nested object properties), no output schema, and no annotations, the description is insufficient. It does not explain what a StyleBox is, how properties like bg_color or border_width work, or the effect of the operation. The description leaves the agent to infer important details.

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?

Input schema has 4 parameters with full descriptions, so schema coverage is 100%. The tool description does not add any additional meaning beyond what the schema provides. Baseline of 3 is appropriate as the schema handles parameter semantics adequately.

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 'Set a StyleBox in a theme' clearly identifies the action and resource. It is a specific verb+resource combination, but it does not distinguish from sibling tools like set_theme_color, set_theme_constant, etc. It could be more precise about what a StyleBox is or how it differs from other theme elements.

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 vs alternatives. There is no mention of prerequisites, constraints, or when it's appropriate to set a StyleBox compared to other theme-setting tools. The description lacks context about the intended use case.

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