This record as markdown: /tools/adbutler/vast-list-linear-media.md
What vast_list_linear_media does on AdButler
AI agents call vast_list_linear_media 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 |
|---|---|---|---|
limit | number | — | Max results to return (default 100, max 100) |
offset | number | — | Pagination offset |
Parameters from the server's own tool schema.
Why vast_list_linear_media is rated Low
This tool retrieves or queries VAST linear media data without side effects. It performs a read-only list operation consistent with the 'Read' category. The blast radius of misuse is minimal—an AI agent retrieving advertising metadata poses low security risk. Confidence is high because the verb 'list' and the passive description clearly indicate data retrieval.
From the tool's definition Tool name 'vast_list_linear_media' and description 'List all VAST linear media' indicate a retrieval operation with no modification, deletion, or execution of external actions.
Attacks that exploit this kind of access
The rule that runs vast_list_linear_media 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 vast_list_linear_media, this is the rule to start with:
vast_list_linear_media 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 vast_list_linear_media call is checked against it from then on.
Questions about vast_list_linear_media
List all VAST linear media. It is categorised as a Read tool in the AdButler MCP Server, which means it retrieves data without modifying state.
vast_list_linear_media accepts 2 parameters: limit, offset. 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 vast_list_linear_media: 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.
vast_list_linear_media 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 vast_list_linear_media 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 vast_list_linear_media. 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.
vast_list_linear_media 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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