diff --git a/dev_docs/SESSION_STATE.md b/dev_docs/SESSION_STATE.md
index 43c17462..0cc674cb 100644
--- a/dev_docs/SESSION_STATE.md
+++ b/dev_docs/SESSION_STATE.md
@@ -24,7 +24,15 @@
 - Added quick quantity adjustment requirement
 - Locked decisions: Hybrid quantity UI, search modal, admin exports (CSV+Excel)
 - Created 5-CONTEXT.md with all decisions for planning phase
-- Ready to advance to Phase 5 planning
+
+**Phase 5 Planning:**
+- Created 3 comprehensive execution plans (5-PLAN-01, 02, 03)
+- 18 total executable tasks across all three features
+- Plan 01 (Quick Quantity Adjust): 5 tasks, ~450 lines - Hybrid +/-  + tap-to-edit
+- Plan 02 (Search & Filtering): 6 tasks, ~520 lines - Modal search, all-fields matching
+- Plan 03 (Export/Reports): 7 tasks, ~600 lines - CSV+Excel, inventory snapshot + audit trail
+- All tasks include: acceptance criteria, file paths, function signatures, type hints, test coverage
+- Ready for execution phase
 
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