set_material_instance_texture

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

No annotations are provided, so the description must carry full behavioral disclosure. It only states the action without mentioning side effects, persistence, mutation, required permissions, or return behavior. For a write operation, the lack of any disclosure beyond the verb is a significant gap.

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 sentence, front-loaded with the action, and contains zero wasted words. It is appropriately sized for the tool's simplicity.

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 simple setter with fully documented params, the description conveys the essential purpose. However, the lack of behavioral transparency (side effects, success return, asset save behavior) leaves gaps for an agent trying to predict outcomes. It is adequate but not thorough.

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 coverage is 100% and each parameter has a description. The tool description adds no additional context about parameter formats, constraints, or relationships, so it neither compensates for gaps nor adds value beyond the schema.

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 ('Set') with a specific resource ('texture parameter') and object ('material instance'). It clearly distinguishes from sibling tools like set_material_instance_scalar and set_material_instance_vector, which set different parameter types.

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 context is clear: use this tool when you need to set a texture parameter on a material instance. It doesn't explicitly contrast with alternatives, but the specificity of 'texture parameter' implicitly guides selection among sibling setter tools. No exclusions or when-not-to-use are stated, but the purpose itself provides adequate context.

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