Struct HatlessRalph 

pub struct HatlessRalph { /* private fields */ }

Hatless Ralph - the constant coordinator.

Implementations

impl HatlessRalph

pub fn new( completion_promise: impl Into<String>, core: CoreConfig, registry: &HatRegistry, starting_event: Option<String>, ) -> Self

Creates a new HatlessRalph.

Arguments

• completion_promise - String that signals loop completion
• core - Core configuration (scratchpad, specs_dir, guardrails)
• registry - Hat registry for topology generation
• starting_event - Optional event to publish after coordination to start hat workflow

pub fn build_prompt(&self, context: &str, active_hats: &[&Hat]) -> String

Builds Ralph’s prompt with filtered instructions for only active hats.

This method reduces token usage by including instructions only for hats that are currently triggered by pending events, while still showing the full hat topology table for context.

For solo mode (no hats), pass an empty slice: &[]

pub fn should_handle(&self, _topic: &Topic) -> bool

Always returns true - Ralph handles all events as fallback.