set_master_send

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

With no annotations, the description carries the full burden. It usefully discloses that the destination is the master OR the track's parent folder depending on hierarchy, which is real behavioral context. However, it says nothing about whether the toggle is reversible, whether it requires the track to exist/unmute, or any side effects on existing sends.

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 efficient sentence that front-loads the action and resource with zero wasted words. Size is well matched to the tool's simplicity.

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 simple two-parameter boolean toggle with no output schema and no annotations, this is nearly complete: the action, target, and output-routing nuance are covered. It could be fuller by stating reversibility or the contrast with send-level tools, but nothing critical 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 100%, so both parameters are already documented in the schema. The description adds only the 'or its parent folder' routing nuance, which subtly informs the effect of the toggle but does not elaborate on parameter syntax or formats beyond what the schema provides.

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 states a specific verb ('turns on or off') and a precise resource ('a track's direct output to the master'), which is meaningfully different from mix-send routing. It stops short of naming the sibling it contrasts with (e.g. set_send or master_to_target), so an agent must infer the distinction from prior knowledge.

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?

There is no explicit guidance on when to use this versus set_send, master_to_target, or setup_sidechain, all of which touch similar routing concepts. Usage is only implied by the resource named, and no prerequisites or exclusions are given.

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