Update 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 structurally. The description adds nothing on top of that — it doesn't say whether this is a partial merge or a full replace of existing collection fields, what is lost on update, or how account scoping affects the target collection.

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 or repetition. It is efficient, though its brevity is partly under-specification rather than disciplined concision for a 12-parameter destructive 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 tool with 12 parameters, nested objects, a three-way union body, a confirm gate, and a destructive mutation flag, one sentence with no output schema leaves major gaps: what changes, whether unspecified fields are cleared, and what the response/state looks like afterward.

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% across all 12 parameters, including the mutually exclusive payload / flat-body / payload_file union and the confirm gate, so the schema carries the parameter burden. The description never mentions any parameter, so baseline 3 is the correct ceiling.

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 clear verb+resource ("Update asset collection") and scopes it to the authenticated user's fal Assets library. However, it does nothing to distinguish this from the many sibling collection mutators (create_asset_collection, delete_asset_collection, move_asset_collection, favorite_asset_collection), so an agent must infer the difference from names alone.

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 when-to-use guidance, no mention of alternatives for modifying a collection, and no statement of prerequisites or the conditions under which a destructive update is appropriate. The presence of a "confirm" gate and a destructiveHint=true annotation makes this omission more costly, since the agent gets no routing logic.

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