Gets the version of React Native that the user wants to upgrade to. OVERVIEW: This tool is used to get the version of React Native that the user wants to upgrade to. USAGE: • This tool is used to get the version of React Native that the user wants to upgrade to. • The version can be used with the
AI agents call get-user-version to retrieve information from React Native Upgrader MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries user input/preference regarding a desired React Native version. It performs no modifications, deletions, code execution, or financial operations. It is a simple data retrieval operation with no blast radius if misused by an AI agent—it can only return version information that the user specifies.
From the tool's definition Tool name 'get-user-version' and description 'Gets the version of React Native that the user wants to upgrade to' indicate a retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access get-user-version gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and React Native Upgrader MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get-user-version:
{
"version": "1",
"default": "deny",
"tools": {
"get-user-version": {}
}
}get-user-version is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Gets the version of React Native that the user wants to upgrade to. OVERVIEW: This tool is used to get the version of React Native that the user wants to upgrade to. USAGE: • This tool is used to get the version of React Native that the user wants to upgrade to. • The version can be used with the. It is categorised as a Read tool in the React Native Upgrader MCP MCP Server, which means it retrieves data without modifying state.
Register the React Native Upgrader MCP server in PolicyLayer and add a rule for get-user-version: 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 Native Upgrader MCP. Nothing to install.
get-user-version 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 get-user-version 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 get-user-version. 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.
get-user-version is provided by the React Native Upgrader MCP server (patrickkabwe/react-native-upgrader-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from React Native Upgrader 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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4 React Native Upgrader MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.