Delete a sessionStorage key, or clear all sessionStorage (omit key to clear all)
Risk signalsBulk/mass operation — affects multiple targets
Part of the Safari server.
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AI agents may call safari_delete_session_storage to permanently remove or destroy resources in Safari. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.
Without a policy, an AI agent could call safari_delete_session_storage in a loop, permanently destroying resources in Safari. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.
Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.
{
"version": "1",
"default": "deny",
"hide": [
"safari_delete_session_storage"
]
}See the full Safari policy for all 91 tools.
These attack patterns abuse exactly the kind of access safari_delete_session_storage gives an agent. Each links to the full case and the policy that stops it:
Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.
Delete a sessionStorage key, or clear all sessionStorage (omit key to clear all). It is categorised as a Destructive tool in the Safari MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Safari MCP server in PolicyLayer and add a rule for safari_delete_session_storage: 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 Safari. Nothing to install.
safari_delete_session_storage 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 safari_delete_session_storage 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 safari_delete_session_storage. 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.
safari_delete_session_storage is provided by the Safari MCP server (safari-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 91 Safari tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.