producer_variation_music

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

No annotations are provided, so the description carries full burden. It indicates the action is generative ('creates a new version') and returns a task ID and audio info, implying asynchronous processing. However, it does not disclose whether the original audio is preserved, any side effects, or authentication/permission requirements, leaving some behavioral gaps.

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 well-structured with a short summary, usage guidelines, and return value statement. It is not overly verbose, but the usage guidelines could be slightly more concise. Overall, it is efficient and front-loaded.

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 5 parameters, 100% schema coverage, and no annotations, the description covers the core purpose, usage scenarios, and return value. It lacks some behavioral details (e.g., whether the original is modified, any rate limits), but the inclusion of a callback_url suggests asynchronous handling, which partially compensates. The description is mostly complete for a generative music tool.

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 coverage is 100%, but the description adds value beyond the schema by providing concrete examples for the 'prompt' parameter (e.g., 'more upbeat tempo') and 'style' parameter (e.g., 'faster tempo, more energy'), which clarifies the expected format and intention.

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 the tool creates a variation of an existing song with modifications, using specific verbs and resource. It distinguishes from siblings like producer_cover_music by focusing on subtle changes to arrangement/melody/style while keeping structure similar.

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 explicit bullet points for when to use the tool: when you like a song but want a slightly different version, want to explore interpretations, or need multiple takes. This helps the agent choose among sibling tools.

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