Function validate_rust_source 

pub fn validate_rust_source(code: &str) -> Result<(), ExecutionError>

Validate that user source code fits the phase 1 bounded source model.

The phase 1 model requires self-contained snippets that provide fn run(input: Value) -> Value. The harness supplies fn main(), use serde_json::Value;, and links serde_json. User code must not redefine main or use crate-level attributes.

Returns Ok(()) if the code passes validation, or Err(ExecutionError::InvalidRequest(...)) with a descriptive message.

Example

use adk_code::validate_rust_source;

// Valid: provides the run() contract
assert!(validate_rust_source(r#"
    fn run(input: serde_json::Value) -> serde_json::Value {
        input
    }
"#).is_ok());

// Invalid: defines fn main()
assert!(validate_rust_source(r#"
    fn main() { println!("hello"); }
"#).is_err());