Module prompt 

A system prompt as data: a role and named sections, rendered into one system message only when the request is sent, so a layer in between can read, change or move a section by its tag.

use rig_core::completion::{CompletionRequest, Section, SystemPrompt};

let mut prompt = SystemPrompt {
    role: "You are a coding agent.".into(),
    sections: vec![Section::new("environment", "Today is Monday.")],
};
assert_eq!(
    prompt.text(),
    "You are a coding agent.\n\n<environment>\nToday is Monday.\n</environment>"
);
let request = CompletionRequest::new("Hello").with_system(&prompt);
assert_eq!(request.system_instructions(), Some(prompt.text().as_str()));

let moved = prompt.take("environment");
assert_eq!(moved.map(|section| section.text), Some("Today is Monday.".into()));
assert_eq!(prompt.text(), "You are a coding agent.");

Structs

Section

A named part of a SystemPrompt.

SystemPrompt

A system prompt in parts: the role, then each non-empty section between <tag> and </tag>, sent as one system message.