ledfx_set_blender

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

No annotations are provided, so the description carries the full burden. It states 'Safely set' implying non-destructive behavior, but does not detail side effects (e.g., whether it replaces existing blender effects) or prerequisites beyond 'configuring source virtuals first'. Moderate transparency.

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 two sentences, front-loaded with the core purpose, and free of extraneous information. Every sentence adds distinct value.

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 tool with 5 parameters and nested objects, the description explains the blending concept and best practices. It does not specify return values, but the tool is a setter, so that is acceptable. Overall, adequately 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 coverage is 100%, so the schema already documents parameters. The description adds value by emphasizing audio reactivity and discouraging static colors, which is not captured in the schema field descriptions. This goes beyond the baseline.

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 tool's purpose: 'Safely set a blender effect by configuring source virtuals first.' It specifies the verb 'set' and resource 'blender effect', and distinguishes from sibling tools by focusing specifically on blender configuration.

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 provides explicit usage guidance: 'Blender mixes background + foreground using a mask; mask should be audio reactive, and at least one of background/foreground should be audio reactive. Static colors are rarely useful.' This informs the agent when to use the tool and how to configure it effectively.

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