comp_set_audio_mix

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

With no annotations provided, the description carries full responsibility for disclosing behavior. It states 'replace' implying mutation, but does not explain side effects, reversibility, permission requirements, or what happens to the existing mix. It offers minimal behavioral transparency beyond the verb.

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 short sentence, but it is under-specified rather than appropriately concise. It lacks the detail needed to be useful; the brevity does not contribute to clarity, only to inadequacy.

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 3 parameters (including a complex 'tracks' array), no output schema, and no annotations, this description is severely incomplete. It fails to explain what an 'audio mix' constitutes, how the tracks array is structured, or any expected behavior. An agent would have to guess almost everything.

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 must compensate by explaining parameters. It does not mention tracks, comp_id, or original_volume at all. The agent receives no additional meaning beyond the raw schema, which is already opaque for nested objects like 'tracks'.

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 uses a specific verb ('replace') and names the exact resource ('audio mix of a composition'). This clearly differentiates it from siblings like audio_mix, audio_add_track, or comp_add_clip, leaving no ambiguity about what the tool operates on.

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 provides no guidance on when to use this tool versus alternatives. It does not mention distinctions from audio_mix, audio_add_track, or other composition-related tools, nor any prerequisites or typical scenarios.

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