AI agents use vast42_create_icon_click_fallback_image to create or update resources in AdButler — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your AdButler environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
name | string | — | Icon click fallback image name |
width | number | — | Width in pixels |
height | number | — | Height in pixels |
Parameters from the server's own tool schema.
This tool creates new ad-related assets (fallback images for VAST 4.2 icons). While reversible via update/delete operations, it modifies ad campaign data and could affect ad delivery if misconfigured. Creation of ad resources without destructive capability warrants Write classification. Severity is medium because misuse could degrade ad campaigns but does not cause irreversible data loss or financial impact directly.
From the tool's definition Tool name includes 'create' and description states 'Create a VAST 4.2 icon click fallback image', indicating data creation. VAST is a standard for video ad serving; creating fallback images modifies ad configuration.
Attacks that exploit this kind of access
Create a VAST 4.2 icon click fallback image. It is categorised as a Write tool in the AdButler MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
vast42_create_icon_click_fallback_image accepts 3 parameters: name, width, height. The full parameter table on this page comes from the server's own tool schema.
Register the AdButler MCP server in PolicyLayer and add a rule for vast42_create_icon_click_fallback_image: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches AdButler. Nothing to install.
vast42_create_icon_click_fallback_image is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the vast42_create_icon_click_fallback_image rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for vast42_create_icon_click_fallback_image. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
vast42_create_icon_click_fallback_image is provided by the AdButler MCP server (adbutler/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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