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meta_ads_creatives_create

Create a single-image Meta Ads creative. Provide name, Facebook Page, and link URL; add image via URL or previously uploaded hash to generate the ad creative.

Instructions

Creates a single-image Meta Ads AdCreative. Returns the new creative's id and object_story_id. Mutating, reversible via rollback_apply (rollback soft-deletes the creative). Supply exactly one of image_url or image_hash — image_url triggers Meta to fetch and host the image; image_hash references an image already uploaded via meta_ads_creatives_upload_image or meta_ads_images_upload_file. For multi-image carousels use meta_ads_creatives_create_carousel; for dynamic / automatic optimization use meta_ads_creatives_create_dynamic.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
account_idNoMeta Ads account ID in the format 'act_XXXXXXXXXX' (e.g. 'act_1234567890'). Optional — falls back to META_ADS_ACCOUNT_ID from the configured credentials. The leading 'act_' prefix is required.
nameYesCreative name shown in Ads Manager. Internal label — not visible to end users.
page_idYesFacebook Page ID that the ad will be published as. Must be a page the authenticated user has permission to post from. Required by Meta for every creative — ads cannot run without a page identity.
link_urlYesDestination URL the ad links to when tapped. Must be HTTPS and domain-verified on the ad account.
image_urlNoPublic HTTPS image URL. Meta fetches and hosts the asset. Mutually exclusive with image_hash — supply exactly one of them.
image_hashNoImage hash returned from meta_ads_creatives_upload_image / meta_ads_images_upload_file. Mutually exclusive with image_url.
messageNoPrimary ad body text shown above the image. Plain text, emoji allowed. Meta recommends ≤125 characters to avoid truncation on mobile.
headlineNoHeadline shown below the image. ~40 characters fits most placements without truncation.
descriptionNoDescription / link-caption text shown below the headline. Optional; not all placements render it.
call_to_actionNoCall-to-action button label. Valid values include LEARN_MORE, SIGN_UP, SHOP_NOW, DOWNLOAD, CONTACT_US, SUBSCRIBE, GET_QUOTE, BOOK_TRAVEL, APPLY_NOW. Omit to render no button (link tap still works). The valid set depends on the parent campaign's objective.
Behavior4/5

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

No annotations are provided, so the description carries the full burden. It discloses the mutating nature, reversibility via rollback_apply (soft-delete), and the image fetching behavior. However, it lacks details on authentication requirements, rate limits, or potential side effects beyond creation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is concise with no unnecessary words. It front-loads the purpose and return values, then logically groups usage guidelines and parameter constraints. Each sentence contributes meaningfully.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given 10 parameters, no output schema, and no annotations, the description covers the essential aspects: core functionality, parameter selection logic, alternatives, and rollback. It could be enhanced by mentioning common error conditions or the response structure, but it is sufficient for an agent to use correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with detailed descriptions for each parameter. The description adds value by explaining the mutual exclusivity of image_url and image_hash, rollback mechanism, and return fields. This extra context enriches the parameter understanding beyond the schema alone.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states it creates a single-image Meta Ads AdCreative, specifying the return values (id and object_story_id). It distinguishes itself from siblings like carousel and dynamic creative tools, making the purpose unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description specifies when to use this tool (single-image creatives) and explicitly names alternatives for other cases (carousels: meta_ads_creatives_create_carousel; dynamic: meta_ads_creatives_create_dynamic). It also provides guidance on image input (mutual exclusivity of image_url and image_hash) and mentions rollback capability.

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

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