List configured mail/calendar accounts without exposing secrets.
AI agents call list_accounts to retrieve information from Personal Mail without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves and lists existing account information. It has no capability to create, modify, delete, or execute operations. The explicit note that secrets are not exposed further confirms this is a safe read operation with minimal blast radius if misused.
From the tool's definition Tool name is 'list_accounts' and description states 'List configured mail/calendar accounts without exposing secrets.' The verb 'list' is a read operation that retrieves account configuration metadata without modification.
Attacks that exploit this kind of access
List configured mail/calendar accounts without exposing secrets. It is categorised as a Read tool in the Personal Mail MCP Server, which means it retrieves data without modifying state.
Register the Personal Mail MCP server in PolicyLayer and add a rule for list_accounts: 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 Personal Mail. Nothing to install.
list_accounts 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_accounts 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_accounts. 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_accounts is provided by the Personal Mail MCP server (srogerf/personal-mail-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.
Teams ship this data inside their own products. See what a licence covers →