AI agents call list_layouts_on_matter to retrieve information from Smokeball without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves existing layout/document merge records associated with a matter. It performs a read-only operation that retrieves data without modifying, creating, deleting, or executing any operations. The 'list' verb and retrieval context confirm this is a Read category tool with low severity due to its non-destructive, informational nature.
From the tool's definition Tool name 'list_layouts_on_matter' and description 'List all layout instances on a matter (document merge records)' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
List all layout instances on a matter (document merge records). It is categorised as a Read tool in the Smokeball MCP Server, which means it retrieves data without modifying state.
Register the Smokeball MCP server in PolicyLayer and add a rule for list_layouts_on_matter: 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 Smokeball. Nothing to install.
list_layouts_on_matter 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 list_layouts_on_matter 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 list_layouts_on_matter. 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.
list_layouts_on_matter is provided by the Smokeball MCP server (rosenadvertising/smokeball-mcp). 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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