create_set_by_vertices

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

No annotations are provided, so the description carries full responsibility for behavioral disclosure. It only states that a set is created, but does not mention whether existing sets with the same name are overwritten, whether the model must already contain the instance, or any side effects on the model.

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 and is front-loaded with the core purpose. However, it is under-specified for a tool with five parameters and several close siblings, making it concise at the expense of necessary guidance.

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 5-parameter tool with no annotations and no property-level schema descriptions, this description is incomplete. An agent invoking this tool still needs to infer critical details about vertex index semantics, model identity, timeout behavior, and whether the operation mutates an existing model. The presence of an output schema is helpful but does not fill these gaps.

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 property descriptions are completely absent (0% coverage), so the description must compensate. It adds minimal meaning by connecting 'vertices' and 'instance' to vertex_indices and instance_name, but it does not explain the meaning of set_name, model_name, timeout, or how vertex_indices map to the geometry.

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 uses a specific verb and resource ('Create a set') and clearly identifies the selection basis ('from vertices of an instance'). This differentiates it from sibling tools like create_set_by_face and create_set_by_edges without needing to inspect schemas.

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 choose this over the many sibling set-creation tools (e.g., set by face, set by edges). No prerequisites or exclusions are mentioned, so an agent cannot determine the appropriate context beyond the name itself.

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