Gets the React Native diff between the current version and the user provided version. OVERVIEW: This diff will show all changes needed to upgrade React Native, including: • Package.json dependencies and their versions • iOS configuration changes (Podfile, xcodeproj settings) • Android configurati...
AI agents call get-react-native-diff 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 and displays information (diffs and migration guidance) without side effects. It does not modify files, execute code, delete data, or trigger external operations. The word 'diff' indicates a comparison/query operation.
From the tool's definition The tool 'Gets the React Native diff between the current version and the user provided version' and shows 'all changes needed to upgrade React Native' including package.json, configuration files, and structure changes.
Documented attack patterns abuse exactly the kind of access get-react-native-diff 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-react-native-diff:
{
"version": "1",
"default": "deny",
"tools": {
"get-react-native-diff": {}
}
}get-react-native-diff is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Gets the React Native diff between the current version and the user provided version. OVERVIEW: This diff will show all changes needed to upgrade React Native, including: • Package.json dependencies and their versions • iOS configuration changes (Podfile, xcodeproj settings) • Android configuration (build.gradle, settings.gradle) • Project structure changes • Binary files that need to be updated • Template files modifications • Native code changes • Troubleshooting steps if any USAGE: • If no fromVersion is provided, the current version from package.json will be used • The diff follows standard git diff format and should be carefully analyzed ANALYSIS STEPS: 1. Review the diff to identify dependency version changes 2. Carefully analyze configuration changes in iOS and Android files • Preserve custom settings in Podfile, build.gradle, etc. • Keep user-defined code blocks intact • Only update version numbers and required configurations 3. Handle binary and template file updates • Note which binary files need updating • Back up modified template files before updating • Merge changes while preserving customizations 4. Maintain code integrity • Preserve custom code in native iOS/Android files • Keep modifications in JavaScript/TypeScript files (App.tsx, etc.) • Only update required React Native specific code 5. Update build tooling • Match Gradle version from diff • Update CocoaPods version if specified • Keep existing build customizations 6. Package management • Only update versions of existing dependencies • Do not add new packages • Maintain current package structure • Preserve custom package configurations • Existing package version should be the same in all package.json files • DO NOT fall back to rc versions, always use the stable version of React Native unless the user explicitly asks for a rc version. TROUBLESHOOTING STEPS: At the end of the process, provide instructions for troubleshooting steps (detect user. 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-react-native-diff: 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-react-native-diff 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-react-native-diff 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-react-native-diff. 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-react-native-diff 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.
Free to start. No card required.
4 React Native Upgrader MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.