Update Ad Descriptions
Update descriptions for a Responsive Search Ad (RSA).
Parameters:
- ad_id: The ad ID to update (REQUIRED - get from get_campaign_structure)
- ad_group_id: The ad group ID (REQUIRED)
- descriptions: List of 2-4 descriptions (REQUIRED)
- customer_id: Optional
Description Rules:
- Max 90 characters per description
- 2-4 descriptions required
- Descriptions should expand on headlines
- Include specific details and CTAs
- Formula: [Value Prop]. [Specific Detail]. [CTA].
Execution time: 2-4 seconds
WARNING: Updated ads go through Google’s review process.
Example: User: “Make my ad descriptions more action-oriented” Agent:
- Uses get_campaign_structure to find ad_id
- Shows current descriptions
- Prepares new descriptions with CTAs
- Gets approval and updates
Authorizations
API key from https://adspirer.ai/keys. Prefix sk_live_. Treat as a secret — never commit.
Headers
Client-generated UUID to make writes idempotent. Strongly recommended for write tools. A repeat call with the same key returns the cached result instead of re-executing. Example: 550e8400-e29b-41d4-a716-446655440000
Body
All tool arguments are wrapped in an arguments object. The fields accepted inside arguments are listed below — required fields are marked with a red asterisk.
Input schema for updating ad descriptions
Response
Tool executed successfully. data.text carries the human-readable result (markdown-friendly). data.quota shows your current usage against the plan limit. data.structured appears when the tool emits machine-parseable structured content. data.content appears for tools that return non-text blocks (images, resources).
Returned on HTTP 200. data.text is the primary human-readable output. data.quota is always present for billable calls. data.structured is set only when the tool emits machine-parseable structured content. data.content is set only when the tool emits non-text content blocks.

