blender_modifier_add

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

With no annotations, the description bears the burden of disclosing side effects. It only states 'Add a modifier' without mentioning that it modifies the object's state, potential irreversibility, or any prerequisites. This lack of behavioral detail could mislead an agent about the tool's impact.

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, concise sentence with no redundant information. It is well-structured and to the point, making it easy to parse quickly.

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 simple nature of the tool and the presence of sibling tools, the description is largely complete for basic use. It lacks details on preset configuration and potential side effects, but these are not critical for understanding the core purpose. The absence of an output schema is acceptable as no return value is expected.

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?

The tool description adds 'optional preset configuration' which is not fully detailed in the schema, but it does not clarify how this relates to the parameters (e.g., use_preset). The schema descriptions provide basic meanings, but the tool description does not enhance understanding of parameter interactions or defaults.

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 ('Add') and the resource ('a modifier to an object'), making the tool's purpose immediately understandable. It also hints at an optional preset configuration feature, adding specificity.

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 does not explicitly mention when to use this tool versus alternatives like blender_modifier_configure or blender_modifier_apply. However, the name 'add' and the context of sibling tools imply the appropriate use case, but it lacks explicit guidance.

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