List audience groups on the OA. Audiences created via LINE OA Manager UI (e.g. chat-tag audiences, friend-path audiences, web-traffic audiences) also appear here — even though those types cannot be CREATED via Messaging API. Status meanings: - READY: usable in narrowcast immediately - IN_PROGRESS...
AI agents call line_list_audiences to retrieve information from Line Oa Mcp Ultimate without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query operation that retrieves audience group information without creating, modifying, or deleting any data. There are no side effects or irreversible actions. The status filter is a retrieval parameter, not a mutation. This is a straightforward Read category risk with low severity given it only exposes existing audience metadata.
From the tool's definition Tool name is 'line_list_audiences' and description states it 'List audience groups on the OA'. The function only retrieves and displays existing audience data with status information.
Documented attack patterns abuse exactly the kind of access line_list_audiences gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Line Oa Mcp Ultimate, and nothing reaches the server without passing your rules. This is the rule we recommend for line_list_audiences:
{
"version": "1",
"default": "deny",
"tools": {
"line_list_audiences": {}
}
}line_list_audiences is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List audience groups on the OA. Audiences created via LINE OA Manager UI (e.g. chat-tag audiences, friend-path audiences, web-traffic audiences) also appear here — even though those types cannot be CREATED via Messaging API. Status meanings: - READY: usable in narrowcast immediately - IN_PROGRESS: still indexing — wait ~10 minutes - FAILED: creation failed; recreate - EXPIRED: aged out; recreate Args: - status_filter:. It is categorised as a Read tool in the Line Oa Mcp Ultimate MCP Server, which means it retrieves data without modifying state.
Register the Line Oa Mcp Ultimate MCP server in PolicyLayer and add a rule for line_list_audiences: 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 Line Oa Mcp Ultimate. Nothing to install.
line_list_audiences 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 line_list_audiences 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 line_list_audiences. 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.
line_list_audiences is provided by the Line Oa Mcp Ultimate MCP server (wasintoh/line-oa-mcp-ultimate). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 34 Line Oa Mcp Ultimate tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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34 Line Oa Mcp Ultimate tools catalogued and risk-classified — across an index of 42,500+ MCP servers.