Structured line-by-line text diff with unified output via @mukundakatta/diff-mcp (npx) — compare code, docs, or any text

{
  "request": {
    "method": "tools/call",
    "params": {
      "name": "diff",
      "arguments": {
        "a": "function greet(name) {
  console.log("Hello, " + name);
  return true;
}",
        "b": "function greet(name, greeting = "Hello") {
  const message = greeting + ", " + name + "!";
  console.log(message);
  return message;
}",
        "unified": true
      }
    }
  },
  "response": {
    "content": [
      {
        "type": "text",
        "text": "{"entries":[{"op":"del","text":"function greet(name) {"},{"op":"del","text":"  console.log(\"Hello, \" + name);"},{"op":"del","text":"  return true;"},{"op":"add","text":"function greet(name, greeting = \"Hello\") {"},{"op":"add","text":"  const message = greeting + \", \" + name + \"!\";"},{"op":"add","text":"  console.log(message);"},{"op":"add","text":"  return message;"},{"op":"eq","text":"}"}],"unified":"-function greet(name) {\n-  console.log(\"Hello, \" + name);\n-  return true;\n+function greet(name, greeting = \"Hello\") {\n+  const message = greeting + \", \" + name + \"!\";\n+  console.log(message);\n+  return message;\n }"}"
      }
    ]
  }
}