vast_get_companion

Get details of a specific VAST companion

SERVERAdButler SOURCEadbutler/mcp-server

Low RISK CLASS

Category Read

Parameters 11 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/adbutler/vast-get-companion.md

WHAT IT DOES

What vast_get_companion does on AdButler

AI agents call vast_get_companion 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 companion ID

Parameters from the server's own tool schema.

RISK

Why vast_get_companion is rated Low

This tool retrieves information about a VAST (Video Ad Serving Template) companion ad without modifying, deleting, or executing any operations. It is a straightforward data retrieval operation with no side effects, placing it squarely in the Read category. The low severity reflects minimal risk from misuse — at worst, an agent would query information it shouldn't access, but no data would be modified or deleted.

From the tool's definition Tool name is 'vast_get_companion' and description states 'Get details of a specific VAST companion' — the verb 'Get' and action of retrieving/retrieving details indicates a read-only operation with no modifications.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs vast_get_companion 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_get_companion, this is the rule to start with:

vast_get_companion Allowed

vast_get_companion is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "vast_get_companion": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect AdButler, apply this rule, and every vast_get_companion call is checked against it from then on.

FAQ

Questions about vast_get_companion

What does the vast_get_companion tool do? +

Get details of a specific VAST companion. It is categorised as a Read tool in the AdButler MCP Server, which means it retrieves data without modifying state.

What parameters does vast_get_companion accept? +

vast_get_companion accepts 1 parameter: id. Required: id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on vast_get_companion? +

Register the AdButler MCP server in PolicyLayer and add a rule for vast_get_companion: 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.

What risk level is vast_get_companion? +

vast_get_companion is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit vast_get_companion? +

Yes. Add a rate_limit block to the vast_get_companion 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.

How do I block vast_get_companion completely? +

Set action: deny in the PolicyLayer policy for vast_get_companion. 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.

What MCP server provides vast_get_companion? +

vast_get_companion 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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