This record as markdown: /tools/adbutler/vast42-get-linear.md
What vast42_get_linear does on AdButler
AI agents call vast42_get_linear to retrieve information from AdButler without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
id | number | Yes | VAST 4.2 linear media ID |
Parameters from the server's own tool schema.
Why vast42_get_linear is rated Low
This tool retrieves a single VAST (Video Ad Serving Template) 4.2 linear media item. The verb 'get' and the retrieval-only description indicate this is a read operation that queries existing data without side effects. No creation, modification, deletion, or external execution is implied. Blast radius is minimal as it only exposes information already in the system.
From the tool's definition Tool name includes 'get' and description states 'Get a single VAST 4.2 linear media' — retrieval operation with no modification or deletion.
Attacks that exploit this kind of access
The rule that runs vast42_get_linear safely
PolicyLayer is an MCP gateway: it sits between your AI agents and AdButler, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For vast42_get_linear, this is the rule to start with:
vast42_get_linear is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect AdButler, apply this rule, and every vast42_get_linear call is checked against it from then on.
Questions about vast42_get_linear
Get a single VAST 4.2 linear media. It is categorised as a Read tool in the AdButler MCP Server, which means it retrieves data without modifying state.
vast42_get_linear accepts 1 parameter: id. Required: id. 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_get_linear: 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_get_linear is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the vast42_get_linear 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_get_linear. 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_get_linear 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.
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