intr-parser - Parser for the .prompt file format.

Parses Dotprompt-compatible .prompt files into a structured [ParseResult]. Supports all three tiers:

• Tier 1: Plain Handlebars template with no frontmatter.
• Tier 2: YAML frontmatter with id, version, model hints, typed inputs.
• Tier 3: Tier 2 + evals, chains, reputation metadata.

Example

use intr_parser::parse;

let src = r#"---
id: greet
version: 1.0.0
description: Greet a user by name
model:
  preferred: [claude-sonnet-4-6]
  temperature: 0.3
input:
  schema:
    name: string
---
Hello, {{name}}!
"#;

let result = parse(src.as_bytes()).unwrap();
assert_eq!(result.tier, 2);
assert!(result.variables.contains(&"name".to_string()));