set_uv_projection

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

The description indicates it applies UV mapping to a mesh object and returns a confirmation dict, but does not disclose side effects, authorization needs, or potential errors (e.g., object not mesh). With no annotations, some behavioral details are missing.

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 concise, front-loaded with the purpose, and includes a clear list of arguments and return value. Every sentence adds value without redundancy.

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 description covers the basic functionality and return value, but lacks context about error handling, prerequisites (e.g., existing UV map), and compatibility with non-mesh objects. For a simple tool, it is minimally adequate but could be more 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?

The input schema has 0% description coverage, but the description adds meaning by specifying object_name as 'Name of the mesh object' and projection with enumerated types (CUBE, CYLINDER, SPHERE), thus compensating for the schema gap.

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 (apply) and the resource (projection-based UV mapping), and specifies the projection types (cube, cylinder, sphere) which distinguishes it from sibling UV tools like smart_uv_project and uv_unwrap.

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 on when to use this tool versus alternatives like smart_uv_project or uv_unwrap. The description does not mention prerequisites or conditions for use.

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