Check if current user has access to a specific feature/operation in a workgroup
AI agents call bitrix_group_access_check to retrieve information from Email 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 access control information for informational purposes only. It performs a read-only check of user permissions against a workgroup feature without creating, modifying, deleting, or executing any operations. The only potential risk is information disclosure about access controls, which is minimal and typical of access control verification tools.
From the tool's definition Tool name 'bitrix_group_access_check' and description 'Check if current user has access to a specific feature/operation in a workgroup' indicate a query/retrieval operation that checks permissions without modifying any data.
Attacks that exploit this kind of access
Check if current user has access to a specific feature/operation in a workgroup. It is categorised as a Read tool in the Email MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Email MCP Server MCP server in PolicyLayer and add a rule for bitrix_group_access_check: 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 Email MCP Server. Nothing to install.
bitrix_group_access_check 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 bitrix_group_access_check 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 bitrix_group_access_check. 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.
bitrix_group_access_check is provided by the Email MCP Server MCP server (sventern/mcp_email). 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.
Teams ship this data inside their own products. See what a licence covers →