model_loft

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

Annotations mark destructiveHint=true, so the description should disclose what is created, modified, or destroyed. It only says shapes are swept into a complex surface; it does not explain whether source shapes are altered, whether a new object is created, or what side effects occur. No contradiction with annotations, but behavioral disclosure is minimal.

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 compact and front-loaded: the core mechanism and the existing-object prerequisite are stated immediately. The bilingual duplication is justified by the target audience and adds no real clutter.

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?

It explains the core operation and prerequisite, but for a complex modeling tool with no output schema and a destructiveHint=true flag, it omits important context such as how shapes are ordered along the path and what the resulting object state is. This is adequate but not fully 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 description coverage is 100%, so parameters are already documented. The description adds the conceptual roles of path and shapes, but does not clarify shape ordering along the path or add meaning to the optional name parameter beyond what the schema provides.

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 identifies the operation: create a Loft compound object by sweeping one or more shapes along a path spline. It distinguishes loft conceptually from other modeling operations, though it does not explicitly call out similar siblings like model_sweep or model_extrude_spline.

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?

It states a meaningful prerequisite: path and shapes must already exist as shape objects. However, it gives no guidance on when to choose loft over similar modeling tools, nor any exclusions or conditions that would make loft inappropriate.

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