track_mix_and_render_to_new

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

With no annotations provided, the description carries the full disclosure burden. It successfully communicates the non-destructive behavior ('keeping the originals') and side effect (creates 'new track'), but omits details about post-operation selection state, return values, or whether the new track is automatically selected.

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 consists of two efficient sentences with zero redundancy. It is front-loaded with the core action (mix/render) followed by the critical distinction (keeping originals) and ends with the prerequisite (select tracks first). 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?

Given the zero-parameter input schema and lack of output schema, the description adequately covers the essential behavioral contract for this audio editing operation. However, it could be improved by mentioning what the tool returns (e.g., track metadata, success confirmation) or the final selection state after execution.

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?

With zero parameters, the baseline score is 4. The description adds value by referencing 'selected tracks,' alerting the agent that this tool operates on the current application selection state rather than explicit ID parameters. This compensates for the empty schema by documenting the implicit input requirement.

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 provides specific verbs ('Mix and render'), identifies the resource ('selected tracks'), and clearly distinguishes this from sibling tool 'track_mix_and_render' by specifying 'into a new track, keeping the originals.' This explicitly signals the non-destructive nature of the operation.

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 instruction 'Select tracks first' establishes a prerequisite for use, but the description fails to explicitly differentiate when to use this tool versus the sibling 'track_mix_and_render' (which likely performs a destructive or in-place render). No guidance on prerequisites beyond selection state is provided.

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