AI agents call wikijs_delete_page to permanently remove resources in Wiki Js — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deletion of wiki pages is a destructive action that cannot be undone. The tool permanently removes content from the wiki system. While the blast radius is not critical (limited to a single page unless misused in batch operations), the irreversible nature of the operation and potential loss of important documentation warrants a 'high' severity classification.
From the tool's definition Tool name contains 'delete' and description states 'Delete a specific page from Wiki.js.' This is an irreversible operation that removes data permanently.
Documented attack patterns abuse exactly the kind of access wikijs_delete_page gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Wiki Js, and nothing reaches the server without passing your rules. This is the rule we recommend for wikijs_delete_page:
{
"version": "1",
"default": "deny",
"hide": [
"wikijs_delete_page"
]
}wikijs_delete_page disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
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Delete a specific page from Wiki.js. It is categorised as a Destructive tool in the Wiki Js MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Wiki Js MCP server in PolicyLayer and add a rule for wikijs_delete_page: 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 Wiki Js. Nothing to install.
wikijs_delete_page 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 wikijs_delete_page 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 wikijs_delete_page. 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.
wikijs_delete_page is provided by the Wiki Js MCP server (talosdeus/wiki-js-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 21 Wiki Js tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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21 Wiki Js tools catalogued and risk-classified — across an index of 42,500+ MCP servers.