navigate_device_preset

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

No annotations are provided, so the description must disclose behavioral traits. It fails to describe side effects (e.g., does it change the current preset? does 'current' merely return the preset?), error conditions, or what happens at boundaries (first/last preset). The handling of chain_index=0 is noted but not its behavior. Transparency is insufficient for a mutating navigation tool.

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 compact: a one-line purpose statement followed by a clean parameter list. Every line adds value, and there is no redundant or filler text. It is appropriately front-loaded with the verb and resource.

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 tool has moderate complexity (4 parameters, navigation semantics) with no annotations. While an output schema exists, the description omits critical context: what 'current' means, whether the operation mutates state, boundary behavior, and potential side effects. The description is not complete enough for an agent to predict tool behavior in edge cases.

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 description adds significant meaning beyond the bare input schema. It explains that track_index is 1-based, device_index defaults to 1, chain_index=0 means no chain, and direction accepts 'next', 'previous', or 'current'. This fully compensates for the 0% schema description coverage.

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 action: 'Navigate device presets' with specific direction values (next/previous/current). This distinguishes it from sibling tools like get_device_parameters or set_device_parameter, which handle parameter access rather than preset navigation.

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 implies usage by listing direction options and target addressing (track, device, chain). However, it does not explicitly state when to use this tool versus alternatives, nor does it mention exclusions like when a device has no presets or when using 'current' might be a query versus a mutation. Usage context is only implied.

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