DESTRUCTIVE. Overwrite a file
AI agents call restore_file to permanently remove resources in Kontexta — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The tool is explicitly labeled DESTRUCTIVE and overwrites a file's contents. Overwriting is irreversible unless a backup exists — the original content is permanently replaced. This qualifies as a Destructive action with high severity since an AI agent could unintentionally destroy important file contents.
From the tool's definition DESTRUCTIVE. Overwrite a file
Attacks that exploit this kind of access
DESTRUCTIVE. Overwrite a file. It is categorised as a Destructive tool in the Kontexta MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Kontexta MCP server in PolicyLayer and add a rule for restore_file: 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 Kontexta. Nothing to install.
restore_file 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 restore_file 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 restore_file. 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.
restore_file is provided by the Kontexta MCP server (safiyu/kontexta). 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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