Get detailed information about a specific Matrix room. Returns room name, topic, members, and other state information. Args: - room_id: The room ID to get info for Returns: - Room name, topic, creation info, and member list
AI agents call matrix_get_room_info to retrieve information from Element MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about a Matrix room without modifying, executing operations, or deleting any data. It is a straightforward read operation that queries existing room state. The blast radius of misuse is limited to unauthorized information disclosure about room contents and membership, which is low severity compared to Write, Execute, Destructive, or Financial operations.
From the tool's definition Tool description states it 'Get[s] detailed information about a specific Matrix room' and 'Returns room name, topic, members, and other state information.' The verb 'Get' and 'Returns' indicate data retrieval with no modification or deletion.
Attacks that exploit this kind of access
Get detailed information about a specific Matrix room. Returns room name, topic, members, and other state information. Args: - room_id: The room ID to get info for Returns: - Room name, topic, creation info, and member list. It is categorised as a Read tool in the Element MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Element MCP Server MCP server in PolicyLayer and add a rule for matrix_get_room_info: 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 Element MCP Server. Nothing to install.
matrix_get_room_info 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 matrix_get_room_info 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 matrix_get_room_info. 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.
matrix_get_room_info is provided by the Element MCP Server MCP server (rosquillas/element-mcp-server). 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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