set_volume

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 does not state whether the change persists across sessions, how it interacts with mute or per-device volume, whether it requires any permission, or what happens on out-of-range input. For a mutation tool with zero annotation coverage this is a notable gap.

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?

A single front-loaded sentence with no filler, which is appropriately sized for a one-parameter setter. It is efficient, though it is minimal to the point of omitting useful distinctions.

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 trivial one-parameter setter with full schema coverage and no output schema, the description is adequate to invoke the tool. It falls short on context the sibling set cannot supply: the scope of 'system' output versus per-device or per-zone volume.

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 description coverage is 100%; the 'level' parameter is fully documented in the schema, including the 0 (silent) to 100 (maximum) range. The description adds no meaning beyond the schema, so the baseline of 3 applies.

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 (set) and resource (system output volume level), which is clearly distinguishable from get_volume. However, it does not differentiate itself from the sibling set_device_volume, so an agent cannot tell from the description alone whether this targets the whole system or a specific device.

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 guidance on when to use this versus set_device_volume, set_output_device, or mute. There are no stated preconditions, no exclusions, and no mention of the obvious alternatives among the siblings.

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