Create asset collection

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

Annotations already declare destructiveHint=true, idempotentHint=false, and openWorldHint=true, and the description adds only the 'authenticated user's library' scope. It never explains why a creation is marked destructive, whether nested parent collections have side effects, or that retries are unsafe without the Idempotency_Key — all of which matter for a 12-parameter mutation.

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?

A single front-loaded sentence with no filler. It is efficient, though the brevity is partly under-specification rather than true conciseness.

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 12 parameters, a nested payload object, mutually exclusive flat/payload/payload_file body modes, and no output schema, one sentence is far too thin. It should at least flag the confirm and idempotency requirements and the body-input exclusivity, even if the schema carries the detail.

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 all 12 parameters including the nested payload and the mutually exclusive body-input modes are already documented. The description adds no syntax or format detail beyond what the schema provides, so the baseline 3 applies.

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?

States a specific verb (create) and resource (asset collection) and scopes it to the authenticated user's fal Assets library. It does not differentiate from siblings like create_asset_character or create_asset_tag, but the resource noun is distinct enough to disambiguate.

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?

No guidance on when to use this versus create_workflow or the other create_* asset tools, and no mention of the confirm=true prerequisite that the schema implies is required for mutations. The agent is left to infer everything from the schema.

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