internal/

Package api provides HTTP handlers and the main API server logic for PromptPipe.

filepath: internal/flow/branch.go

Package lockfile provides directory-based locking to prevent multiple PromptPipe instances.

Package messaging provides hook registry for persistent hook management

Package models defines flow type definitions to avoid circular imports.

Package recovery provides infrastructure helpers for wiring up recovery in the main application

Package store provides the DedupRepo interface for inbound message deduplication.

Package testutil provides common test utilities and helpers for PromptPipe tests.

Package tone provides a fixed whitelist of user tone tags, validation, EMA-based smoothing, mutual-exclusion enforcement, and prompt-guide construction for the implicit user-tone feature.

Package util provides environment variable parsing helpers shared across components.

Package whatsapp wraps the Whatsmeow client for WhatsApp integration in PromptPipe.