set_mix

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

With no annotations, the description carries the disclosure burden and does a solid job: it notes mute/solo are unsupported on master, track is ignored for master, volume uses normalized scaling with a 0 dB reference, and the return includes before/after verification readings. It does not disclose failure behavior or atomicity, but the essentials are covered.

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 yet information-dense: one purpose sentence, a complete parameter list, and a brief returns statement. Every line earns its place, and the most important scoping fact ('single round trip') is front-loaded.

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?

An output schema exists, so the description correctly avoids re-explaining return structure while still noting the verification nature of the response. All seven parameters, edge cases, and normalization conventions are covered. For a 7-parameter tool with zero annotation coverage, nothing essential is missing.

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 0%, so the description fully compensates by defining every parameter: track indexing, volume normalization, pan range, sends keying, mute/solo applicability, and kind values. This is exactly the semantic enrichment an agent needs beyond bare schema types.

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 opens with 'Set mixer parameters (volume, pan, sends, mute, solo) in a single round trip,' giving a specific verb, resource, and named mixer dimensions. It clearly distinguishes itself from siblings like lom_set or set_parameter by framing this as an aggregate mixer setter.

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 conveys the primary use case: updating multiple mixer parameters efficiently in one call. It implies when this tool is appropriate through the 'single round trip' phrasing, but it does not explicitly name alternatives or state when not to use it. The master-track caveats are more parameter semantics than usage routing.

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