diff --git a/docs/plans/2024-06-22-hostkeeper-design.md b/docs/plans/2024-06-22-hostkeeper-design.md
index 0e4d58e..2e5011c 100644
--- a/docs/plans/2024-06-22-hostkeeper-design.md
+++ b/docs/plans/2024-06-22-hostkeeper-design.md
@@ -12,8 +12,8 @@ Hostkeeper is a cross-platform SSH/SFTP management tool written in Go, inspired
 
 ### Key Design Decisions
 
-- **Architecture:** Monolithic CLI with embedded TUI (Progressive enhancement approach)
-- **Interface:** Hybrid - CLI commands + TUI for management tasks
+- **Architecture:** TUI-first with tab-based session management (embedded terminal replacement)
+- **Interface:** TUI for full experience (multiple SSH sessions, host management, SFTP); CLI for quick tasks and automation
 - **Storage:** JSON/YAML files (Phase 1), encrypted storage (Phase 2)
 - **Platform:** Cross-platform (Linux, macOS, Windows, Termux/Android)
 - **Sync:** Manual export/import (Phase 1), cloud sync (future)