volume_up

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

The description conveys the basic mutating effect, consistent with readOnlyHint=false and idempotentHint=false. However, it does not disclose edge behavior such as what happens at maximum volume, whether the step is clamped, or any other system side effects beyond the annotations.

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 front-loaded sentence with no filler. Every word contributes to the core meaning, and the action is stated first.

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 is simple, and the sentence gives a viable basic purpose. However, it is incomplete for invocation because the step parameter is poorly explained, alternatives are not mentioned, and no behavior at volume limits is described.

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?

With 0% schema description coverage, the description must explain the required 'step' parameter, but it only says 'by a step.' It does not clarify whether 'step' is the amount, a range, a default, or how the integer maps to actual volume change. This is especially ambiguous because 'a step' could suggest a fixed increment rather than a parameter-driven amount.

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 a specific action ('Increase'), a resource ('master volume'), and a granularity ('by a step'). It is immediately distinguishable from siblings like get_volume, set_volume, volume_down, and mute_audio.

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 is given about when to use this tool versus alternatives such as set_volume or volume_down. The incremental nature ('by a step') implies a relative adjustment, but the description does not state this as a decision rule or mention any exclusions.

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