Clear all or specific element
AI agents call clear_errors_and_warnings to permanently remove resources in React Devtools — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Clearing errors and warnings removes diagnostic information that cannot be recovered once deleted. The description is vague ('Clear all or specific element') but the 'clear' action combined with the tool name suggests irreversible removal of error/warning state. Severity is medium because it affects debugging data rather than production data, but misuse could hide important diagnostic information from developers.
From the tool's definition 'Clear all or specific element' — the word 'clear' implies removing/deleting errors and warnings, which is irreversible
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
Clear all or specific element. It is categorised as a Destructive tool in the React Devtools MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the React Devtools MCP server in PolicyLayer and add a rule for clear_errors_and_warnings: 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 React Devtools. Nothing to install.
clear_errors_and_warnings 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 clear_errors_and_warnings 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 clear_errors_and_warnings. 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.
clear_errors_and_warnings is provided by the React Devtools MCP server (skylarbarrera/react-devtools-mcp). 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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