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

Annotations already declare this is a non-read-only, non-idempotent, open-world creation with no destructive hint. The description adds nothing beyond that: it doesn't explain that ingestion is asynchronous, that a URL must be fetched, or what happens on repeated calls, despite the 27-param surface.

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?

Two sentences are reasonably tight, but the opening sentence is definitional background about what an asset is rather than actionable instruction, making the front-loaded portion partly filler for an agent that only needs to know how to call the tool.

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 27-parameter creation endpoint with nested transformation objects, the description is far too thin. It omits the ingest workflow (URL download, async processing) and any indication of which of the many optional blocks matter, even though the output schema relieves it of explaining return values.

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 carries all parameter semantics and the description need not repeat them. Per the coverage rule, the baseline is 3 even though the description contributes no parameter detail of its own.

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 the verb (creates) and resource (an asset) and defines what an asset is, so the core purpose is clear. However, it does not differentiate from close siblings such as create_asset_direct_upload, create_live_asset, or create_image_source, leaving the agent to guess which creation endpoint applies to its case.

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?

There is no guidance on when to use this endpoint versus alternatives like create_asset_direct_upload or create_live_asset, nor any mention of prerequisites or which input (URL ingest) this endpoint expects. The 'when' is left entirely to inference.

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