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

With no annotations provided, the description carries the full burden and does well: it discloses dispatch to remote AI workers, variable credit consumption, Day Pass/welcome-credit exclusions, post-processing file deletion, and retention/audit locations. It stops short of permissions, processing-time expectations, or supported audio formats, but the operational and cost transparency is substantial.

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 core purpose is front-loaded, but the description is bloated with pricing and workspace-credit details that are largely marketing copy. Lines like 'there is no per-workspace subscription' and the pricing URL do not help an agent invoke the tool correctly.

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 complex AI processing tool with no annotations and no output schema, the description should explain how the audio is provided and what the result looks like. Instead, it leaves the input mechanism entirely unaddressed and spends space on credit-plan details.

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?

The schema is empty (zero parameters), so there is no structured place to supply the audio file or stem selection. Yet the description says 'Choose two, four, or six stems,' implying a choice the tool interface does not expose, which is misleading for invocation. The zero-parameter baseline is undermined by this unsupported configuration language.

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 and resource: extract an instrumental, vocal track, or separate stems from an audio file. It also distinguishes itself from nearby audio tools by naming stem separation and vocal/instrumental extraction explicitly. An agent can identify the operation without opening the schema.

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?

It implies usage for audio source separation and mentions choosing two, four, or six stems, but never states when to use this versus sibling audio tools or what prerequisites are required. The guidance is present but implicit, and the stem-choice instruction is not actionable given the empty input schema.

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