set_fader

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It usefully clarifies that -144 is equivalent to -inf and implies a mutation. However, it does not disclose whether the set is absolute, whether it overrides current levels, what side effects occur, or how out-of-range values are handled.

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 that states the operation, object, and range without any redundant or filler content. Every word earns its place.

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 tool with three required parameters, no annotations, and no output schema, the description is too sparse. It omits usage guidance relative to adjust_fader, leaves index semantics and valid ranges undocumented, and fails to describe behavioral outcomes, making it incomplete for safe and correct invocation.

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 only 33% (kind only), so the description must compensate for the undocumented db and index parameters. It adds no per-parameter meaning beyond the unit dB, which is already implied by the parameter name, and does not explain how to choose a valid index or which strip ranges apply.

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 verb ('Set') and resource ('fader level in dB on the WING console'), and includes the acceptable dB range. However, it does not explicitly differentiate this tool from the sibling adjust_fader, e.g., by noting that set_fader sets an absolute level rather than a relative adjustment.

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 is provided about when to use set_fader versus adjust_fader or other siblings. The description does not state whether this is for absolute level setting or how it differs from adjust_fader, leaving the agent to infer the usage solely from the tool name.

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