Create asset collection

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

Annotations already declare readOnlyHint=false, destructiveHint=true, idempotentHint=false and openWorldHint=true, so the safety profile is covered. The description adds no behavioral context beyond scope: it never mentions the confirm gate ('Set true only when the user asked for exactly this action'), the idempotency key, or that the union body inputs are mutually exclusive.

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 zero filler. It is tight, though the brevity here reflects under-specification rather than disciplined concision.

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 12-parameter, nested-object mutation with three mutually exclusive body forms, a confirm gate and no output schema, one scope sentence is not enough. The critical call-shaping details live only in schema text an agent may skim past.

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 documents every field, including payload vs flat flags vs payload_file exclusivity and the confirm flag. The description adds only ownership scope, not parameter meaning, 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?

Specific verb + resource ('Create asset collection') plus scope ('authenticated user's fal Assets library'), which separates it from create_workflow, create_asset_character and create_asset_tag. It never names a sibling or draws the boundary against update_asset_collection, but the resource is unambiguous.

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 when-to-use guidance, no prerequisites, no alternatives. With siblings like list_asset_collections, update_asset_collection and delete_asset_collection present, the agent gets nothing about when creating a collection is the right call versus nesting into an existing one (parent_collection_id).

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