Cursor + Gasoline for Interactive Web Development

Cursor is great for editing code. Gasoline makes it browser-aware.

This guide helps new users connect Cursor to Gasoline Agentic Devtools and use it for interactive development tasks.

Quick Terms

• Interactive development: Coding while continuously testing real behavior.
• Model Context Protocol (MCP): Standard for connecting assistants to external tools. https://modelcontextprotocol.io/specification/
• MCP server: Bridge between assistant and external tools.
• Regression: When new code reintroduces an old bug.

The Goal

Use Cursor not just to write code, but to watch real browser behavior and verify fixes.

Step-by-Step

Step 1. Add Gasoline MCP server in Cursor config

{
  "mcpServers": {
    "gasoline": {
      "command": "npx",
      "args": ["-y", "gasoline-mcp"]
    }
  }
}

Step 2. Run a browser-aware debug pass

observe({what: "errors"})
observe({what: "network_waterfall", status_min: 400})

Step 3. Reproduce and verify fix

interact({what: "navigate", url: "https://app.example.com"})
generate({what: "reproduction"})

Step 4. Add long-term protection

generate({what: "test", test_name: "cursor-generated-regression"})

A Friendly Working Pattern

• Morning: run quick health triage.
• During coding: verify each fix with evidence.
• Before merge: generate at least one regression test for critical issues.

Image and Diagram Callouts

[Image Idea] Cursor panel showing assistant running observe and generate calls.

[Diagram Idea] Build loop: edit -> run -> inspect -> fix -> validate.

You’re Working Like a Modern Product Engineer

This is not just coding faster. It is learning faster. Gasoline Agentic Devtools helps Cursor workflows stay grounded in real runtime behavior.