diff --git a/gtd.org b/gtd.org
index 11f25b4..868ac0b 100644
--- a/gtd.org
+++ b/gtd.org
@@ -197,6 +197,14 @@ Roadmap basis: Evolutionary roadmap from README.org. Working backwards from SOTA
 **** DONE 3. Direct Lisp-to-Terminal Actuation [2026-04-28 Tue]
 ***** DONE Refactor the =:cli= actuator to use native TUI rendering
 
+**** DONE 4. Persistent REPL for Interactive Development [2026-04-30 Thu]
+***** DONE Implement org-skill-repl for persistent Lisp evaluation
+      - repl-eval: evaluate code with result+output+error separation
+      - repl-inspect: inspect variables and functions
+      - repl-list-vars: list bound symbols in package
+      - repl-load-file: load files into image
+      - Supports REPL-first workflow with literate reflection in org
+
 *** PHASE: EVENT ORCHESTRATION + HITL (v0.3.0)
 :PROPERTIES:
 :ID:       proj-orchestration-v0-3-0