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Use Mobster’s command below to add its MCP server to Cursor’s config. The server exposes Mobster’s tools, including verify_start, screen, tap and run_tests. See the MCP server for the full list. To add the skill as well, see Editors and Xcode.

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Add it

With Mobster for Mac in Applications, open this link in Cursor and confirm:
Add Mobster to Cursor
Or add it from the terminal:
It prints what it changed:
Add --dry-run to see the change first and write nothing. Run the command again and nothing changes. Mobster for Mac does the same from Settings › Connectors: Add beside Cursor, under Use Mobster from….

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What it writes

The entry goes in ~/.cursor/mcp.json, which Cursor reads in every project:
~/.cursor/mcp.json
Mobster keeps the rest of the file as it is, with a copy of the old one beside it (.mobster-backup). It writes the full path to mobster because apps opened from the Dock don’t see your shell’s PATH, and it never writes a key. --project . writes this repository’s .cursor/mcp.json instead.

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Check it

The doctor starts the server the way Cursor does, lists its tools and calls status. On 26 Oct 2026 (Mobster 0.4.0, no key set) its last lines were:
Restart Cursor. Its settings list mobster with its tools under MCP.

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Check a screen

Build your app for the simulator, then ask Cursor’s agent in your project:
Ask your agent to call verify_start with the app’s path and the expectation. Ask it to drive the simulator with screen and tap. Ask it to finish with verify_finish. verify_finish checks the declared expectations. You get a verdict of passed, failed, needs_review or couldnt_run. You get the report path and an overlay frame when available. No model grades the outcome. Your agent supplies the model access for this loop. The key-less loop

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Add the rules and the skill

--rules . writes .cursor/rules/mobster.mdc and a block in AGENTS.md, which tell Cursor’s agent to check its UI changes with Mobster. --with-skill copies the skill into ~/.agents/skills/ios-testing: the verify loop and the rules for a real iPhone, such as asking before anything that sends, buys, posts or deletes. Run it again and nothing changes. To see your checks and the simulator beside your code, add Mobster’s extension for Cursor and VS Code.

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Remove the MCP server

This removes the mobster entry and leaves your other servers alone. Add --rules . to take the rules out too. Cursor’s own reference for the file is at https://cursor.com/docs/context/mcp.