rhino_cmd_weld_mesh

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

With no annotations, the description carries the full burden of disclosing behavior. It only states that vertices are welded within a tolerance; it does not say whether this modifies the selected mesh, whether it is destructive or undoable, or what side effects occur. The angle-tolerance definition adds some clarity but not enough for a mutation command.

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 short and action-first, with no filler sentences. The inclusion of the 'controller: RhinoController instance' line in Args is boilerplate and not reflected in the schema, but overall the structure is reasonably efficient.

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?

The tool is a mesh mutation command with no annotations, and the description omits essential operational context such as what object is acted on, whether selection is required, and whether the operation is destructive. An output schema exists, but that does not compensate for missing scope and side-effect information.

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 no descriptions for parameters, so the description must compensate. It does explain angle_tolerance as 'Maximum angle (degrees) between faces to weld vertices', which adds real meaning beyond the schema. However, the Args section mentions a 'controller' parameter that is not in the input schema, which is confusing and slightly reduces clarity.

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 ('Weld mesh vertices') and the key condition ('within the given angle tolerance'), so an agent can identify what the tool does. However, it does not differentiate this tool from the sibling rhino_weld_mesh or from rhino_unweld_mesh/rhino_cmd_unweld_mesh, so sibling distinction is absent.

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 implies usage: if you want to weld mesh vertices within an angle tolerance, this is the tool. But there is no explicit when-to-use guidance, no mention of selecting a mesh first, and no comparison to alternatives such as rhino_weld_mesh or rhino_reduce_mesh.

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