set_track_mixer

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

Annotations declare readOnlyHint=false and destructiveHint=false, but the description adds the crucial 'guarded' behavior: changes are planned first and require confirmation. This is significant behavioral context beyond the annotations. The description doesn't detail what happens on apply (e.g., whether it's atomic), but the guarded workflow is well conveyed.

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 sentence that front-loads the action ('Plan or apply') and the resource ('guarded track volume, pan, mute, solo, and return-send changes'). Every word earns its place; no fluff or repetition.

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 10 parameters and a two-phase workflow, the description conveys the core guardrail (plan vs apply) and the scope of changes. It doesn't explain the confirmation flow in detail, but the schema's dryRun/planHash/confirmationToken parameters carry that burden. The lack of an output schema means the description could mention what a plan returns, but the 'Plan' verb implies it.

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 the schema already documents all 10 parameters. The description adds the 'guarded' and 'return-send' framing, which clarifies the overall intent, but doesn't add per-parameter meaning beyond what the schema provides. Baseline 3 is appropriate.

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 ('Plan or apply') and resource ('guarded track volume, pan, mute, solo, and return-send changes'), which clearly identifies the tool's function. It doesn't explicitly differentiate from sibling tools like set_master_mixer or set_bulk_track_mixer, but the resource scope is clear enough to distinguish it.

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 implies a two-phase workflow: 'Plan' (dry run) or 'apply' (with confirmation token). The schema's dryRun, planHash, and confirmationToken parameters reinforce this. However, it doesn't explicitly state when to use this tool vs alternatives like set_master_mixer or set_bulk_track_mixer, nor does it mention prerequisites like calling get_track_mixer first.

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