led_effect

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

The description adds valuable context by explaining what each enum value entails, such as 'rainbow (color cycle)' and 'pulse (brightness breathing).' This functional explanation goes beyond just listing the enum names, enhancing behavioral understanding.

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, highly efficient sentence that immediately delivers all critical information—the function, the available modes, and the nature of those modes—with no superfluous wording.

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?

Given the 100% schema coverage and the list of available effects, the description provides all necessary context. The semantic definitions of the effects are the only thing that could be added, which is already present.

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?

Even though the schema coverage is 100%, the description significantly enhances the semantics by providing human-readable definitions for the enumerated 'effect' parameter. This helps the agent understand the nature of the input beyond the required string value.

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 defines the tool's purpose: running an LED animation effect. It distinguishes itself from sibling tools like led_set_color by specifying that it handles animations (e.g., 'rainbow', 'pulse', 'wave').

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?

While it does not explicitly state when *not* to use the tool, the description inherently guides usage by detailing that it is for 'animation effect,' which contrasts with static configuration tools like led_set_color. This context is sufficient to guide a user toward the correct tool.

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