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rust/script-runner/README.md

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+# Script Runner WASM
+
+A placeholder Rust script runner using wasm-bindgen.
+
+## Building
+
+```bash
+# Install wasm-pack if not already installed
+cargo install wasm-pack
+
+# Build for web
+npm run build
+
+# Build for different targets
+npm run build:nodejs    # For Node.js
+npm run build:bundler   # For bundlers like webpack
+npm run dev             # Development build
+```
+
+## Usage
+
+```javascript
+import init, { ScriptRunner, greet, add } from './pkg/script_runner.js';
+
+async function run() {
+  await init();
+
+  // Basic functions
+  greet("World");
+  console.log(add(1, 2)); // 3
+
+  // Script runner
+  const runner = new ScriptRunner();
+  runner.set_context("my_context");
+  console.log(runner.get_context()); // "my_context"
+
+  const result = runner.run_script("console.log('Hello from script')");
+  console.log(result);
+
+  // Evaluate expressions
+  console.log(runner.evaluate("hello")); // "Hello from Rust!"
+  console.log(runner.evaluate("version")); // "0.1.0"
+}
+
+run();
+```
+
+## Features
+
+- Basic WASM initialization with panic hooks
+- ScriptRunner class for managing execution context
+- Simple expression evaluation
+- Console logging integration
+- Multiple build targets (web, nodejs, bundler)