Remove a UI schema node and all its descendants by UID. DESTRUCTIVE — cannot be undone.
AI agents call remove_ui_schema to permanently remove resources in Nocobase — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently deletes UI schema nodes and their descendants without the ability to recover them. While the blast radius is limited to UI schema data (not database records or financial systems), the irreversible nature of the deletion and the potential impact on application UI configuration justify the Destructive category and high severity rating.
From the tool's definition The description explicitly states 'Remove a UI schema node and all its descendants by UID. DESTRUCTIVE — cannot be undone.' The verb 'Remove' combined with the explicit destructive warning and 'cannot be undone' indicates irreversible deletion.
Attacks that exploit this kind of access
Remove a UI schema node and all its descendants by UID. DESTRUCTIVE — cannot be undone. It is categorised as a Destructive tool in the Nocobase MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Nocobase MCP server in PolicyLayer and add a rule for remove_ui_schema: 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 Nocobase. Nothing to install.
remove_ui_schema 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 remove_ui_schema 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 remove_ui_schema. 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.
remove_ui_schema is provided by the Nocobase MCP server (puguhsudarma/nocobase-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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