Find component instances that are missing a required prop (e.g., Select components without width prop). Use this tool when you need to: - Audit components for missing required props - Ensure accessibility props are present (e.g., missing aria-label) - Check for missing styling props (e.g., missin...
AI agents call find_components_without_prop to retrieve information from JSX Prop Lookup MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs AST analysis and queries to identify components missing props. It retrieves information about component usage patterns but does not create, modify, delete, execute code, or trigger external operations. The purpose is purely informational auditing of a codebase.
From the tool's definition The tool description states it 'Find[s] component instances that are missing a required prop' and use cases are audit, check, and enforce — all read-only operations. The examples show querying/analyzing components without modification.
Attacks that exploit this kind of access
Find component instances that are missing a required prop (e.g., Select components without width prop). Use this tool when you need to: - Audit components for missing required props - Ensure accessibility props are present (e.g., missing aria-label) - Check for missing styling props (e.g., missing width or height) - Enforce prop requirements across the codebase - Refactor components and ensure all usages are updated EXAMPLES: 1. Find Select components missing width prop in current directory: {. It is categorised as a Read tool in the JSX Prop Lookup MCP Server MCP Server, which means it retrieves data without modifying state.
Register the JSX Prop Lookup MCP Server MCP server in PolicyLayer and add a rule for find_components_without_prop: 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 JSX Prop Lookup MCP Server. Nothing to install.
find_components_without_prop is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the find_components_without_prop 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 find_components_without_prop. 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.
find_components_without_prop is provided by the JSX Prop Lookup MCP Server MCP server (lmn451/jsx-prop-lookup-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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