browser_clear_session

Delete all stored data for a session

SERVERClaude Mobile SOURCEalexgladkov/claude-in-mobile

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/alexgladkov-claude-in-mobile/browser-clear-session.md

WHAT IT DOES

What browser_clear_session does on Claude Mobile

AI agents call browser_clear_session to permanently remove resources in Claude Mobile, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why browser_clear_session is rated Critical

The tool permanently deletes stored browser session data without undo capability. While the blast radius is primarily limited to session-level data (not full device wipe), the irreversible nature of deletion and lack of recovery mechanism justifies Destructive classification.

From the tool's definition Tool name 'browser_clear_session' combined with description 'Delete all stored data for a session' explicitly performs irreversible deletion of session data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs browser_clear_session safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Claude Mobile, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For browser_clear_session, this is the rule to start with:

browser_clear_session Hidden

browser_clear_session is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "browser_clear_session"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Claude Mobile, apply this rule, and every browser_clear_session call is checked against it from then on.

FAQ

Questions about browser_clear_session

What does the browser_clear_session tool do? +

Delete all stored data for a session. It is categorised as a Destructive tool in the Claude Mobile MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on browser_clear_session? +

Register the Claude Mobile MCP server in PolicyLayer and add a rule for browser_clear_session: 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 Claude Mobile. Nothing to install.

What risk level is browser_clear_session? +

browser_clear_session is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit browser_clear_session? +

Yes. Add a rate_limit block to the browser_clear_session 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.

How do I block browser_clear_session completely? +

Set action: deny in the PolicyLayer policy for browser_clear_session. 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.

What MCP server provides browser_clear_session? +

browser_clear_session is provided by the Claude Mobile MCP server (alexgladkov/claude-in-mobile). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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