Clear cached 1Password CLI session state held by this MCP process.
AI agents call op_session_reset to permanently remove resources in Mcp 1password — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
An AI agent that decides to call op_session_reset doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from Mcp 1password is gone — there is no undo for destructive operations.
Attacks that exploit this kind of access
Clear cached 1Password CLI session state held by this MCP process. It is categorised as a Destructive tool in the Mcp 1password MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Mcp 1password MCP server in PolicyLayer and add a rule for op_session_reset: 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 Mcp 1password. Nothing to install.
op_session_reset is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the op_session_reset 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 op_session_reset. 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.
op_session_reset is provided by the Mcp 1password MCP server (kefapps/onepassword-mcp-codex). 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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