Crate agentprompt 

Jinja2-syntax LLM prompt templates.

Build chat-style prompts from Jinja2 templates per role. Prompt is a single template; Messages is an ordered list of (role, template) entries that renders into a typed Vec<Message> ready to feed an Anthropic or OpenAI SDK.

Quick start

use agentprompt::{Messages, Role};
use serde_json::json;

let messages = Messages::new()
    .system("You are a {{adjective}} assistant.")
    .user("Question: {{q}}")
    .render(&json!({"adjective": "concise", "q": "what is 2+2?"}))
    .unwrap();

assert_eq!(messages.len(), 2);
assert_eq!(messages[0].role, Role::System);
assert_eq!(messages[0].content, "You are a concise assistant.");
assert_eq!(messages[1].content, "Question: what is 2+2?");

Structs

Message

One rendered message.

Messages

Ordered list of (role, template) entries that renders into Vec<Message>.

Prompt

One compiled Jinja2 template.

Enums

PromptError

Errors from compiling or rendering a Prompt.

Role

Standard chat roles.