create_asset_feed_ad_creative

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

No annotations are provided, so the description carries the full behavioral burden. It implies a mutation ('Create') and hints that the caller must supply raw specs, but says nothing about required permissions, whether the creative is immediately usable, side effects, or failure modes.

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 compact sentence with the action front-loaded and no filler. It is concise but the brevity reflects under-specification rather than efficient information density.

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?

The tool has 7 parameters including nested objects and an output schema, so return values need not be explained. Still, for a create operation with zero annotation and zero schema-description coverage, the description omits everything an agent needs to invoke it correctly.

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 0% across 7 parameters, so the description must compensate and does not. It mentions only asset_feed_spec and object_story_spec, ignoring name, url_tags, ad_account_id, authorization_category, and degrees_of_freedom_spec, and gives no format or content guidance for the two it does name.

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 (dynamic creative) and names the two raw payload objects involved, which is more informative than the title alone. However, it never distinguishes this from siblings like create_ad_creative or create_ad_video_creative, leaving the agent to guess which creative creator applies.

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 instead of create_ad_creative, create_ad_video_creative, or update_ad_creative. The agent is given no prerequisites, no mention of ad account context, and no exclusions.

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