rhino_weld_mesh

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

Annotations indicate readOnlyHint=false, confirming it is a write operation. The description states 'Weld,' implying modification, which is consistent. However, it does not disclose how the welding affects the mesh topology, what happens if no coincident vertices exist, or any performance implications.

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 extremely concise (4 words), but it omits important details. While it is front-loaded, it does not earn its place by providing sufficient context for tool selection and use.

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?

With 0% schema coverage, no parameter descriptions, and no mention of return values (despite an output schema existing), the description is severely incomplete for a tool that modifies geometry.

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 input schema has 0% description coverage—none of the parameters (object_id, name, layer, doc_id) have descriptions in the schema. The description adds no parameter information, leaving the agent without guidance on required or optional inputs.

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 'Weld coincident vertices in a mesh' uses a specific verb ('weld') and clearly identifies the resource ('coincident vertices in a mesh'). It distinguishes itself from siblings like rhino_unweld_mesh (which does the opposite) and rhino_reduce_mesh (which reduces polygon count).

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 is provided on when to use this tool versus alternatives, such as rhino_unweld_mesh or rhino_reduce_mesh. The description does not mention prerequisites or conditions (e.g., mesh must be closed).

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