What it does
Add custom metas (key/value) in the field group administration. It is one of the abilities the Advanced Custom Fields: Extended plugin exposes, so an AI agent connected to your site can run it for you.
Input schema
| Field | Type | Required | Description |
|---|---|---|---|
| input | string | Required | What you want this ability to do, in plain language. |
Output schema
| Field | Type | Description |
|---|---|---|
| result | string | The result produced by the ability. |
Permissions
The agent's WordPress user needs these capabilities. Grant only what's listed here, never a full admin account.
🔒 edit_posts
How an agent calls it
Agents call this ability by name and pass the inputs it needs. A call looks roughly like this:
{
"ability": "acf-extended.add-custom-metas-key-value-in-the-field-",
"args": { "input": ... }
}The agent runs the ability, then hands the result back for you to review before anything is published.