set_bulb_brightness

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

No annotations are provided, so the description must carry the behavioral load. It only states that brightness is set, without disclosing side effects (e.g., whether it turns on the bulb if off, or requires connection). No error conditions or limitations are mentioned. Minimal behavioral disclosure.

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?

One sentence, with the action verb first. No fluff or redundant content. Highly concise and effective.

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?

Tool is simple with a single parameter and no output schema. However, the description omits context such as requiring the bulb to be connected or whether brightness changes override power state. For a minimal setter, it's adequate but not fully complete given no annotations to compensate.

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%, with the brightness parameter fully described including range and meaning. The description adds only redundant phrasing like 'intensity/opacity', which is already in the schema. No new semantic information is provided beyond 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?

States a specific verb and resource: 'Set the brightness' of the smart bulb. Distinguishes from sibling tools like set_bulb_power and set_bulb_color by focusing on brightness/intensity/opacity. Clear and unambiguous.

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 explicit guidance on when to use this tool versus alternatives. The description doesn't mention that set_bulb_power handles on/off or that color tools handle color. Usage is implied by the name but not explicitly routed. Basic clarity without exclusions.

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