AI agents call remove_hook to permanently remove resources in JS Reverse Strong MCP — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Removing a hook is an irreversible action in the current runtime session; once removed, the hook's captured state and interception are lost. This fits the Destructive category as it cannot be undone without explicit re-hooking. Severity is medium because the blast radius is limited to the reverse engineering session/workflow rather than production data.
From the tool's definition Remove a hook by id — permanently removes an installed hook, which cannot be undone without re-installing it
Documented attack patterns abuse exactly the kind of access remove_hook gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and JS Reverse Strong MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for remove_hook:
{
"version": "1",
"default": "deny",
"hide": [
"remove_hook"
]
}remove_hook 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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Remove a hook by id. It is categorised as a Destructive tool in the JS Reverse Strong MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the JS Reverse Strong MCP server in PolicyLayer and add a rule for remove_hook: 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 JS Reverse Strong MCP. Nothing to install.
remove_hook 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_hook 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_hook. 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_hook is provided by the JS Reverse Strong MCP server (lwjjike/jsreverser-strong-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from JS Reverse Strong MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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85 JS Reverse Strong MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.