diff --git a/core/schema.sql b/core/schema.sql
index 00add92..557a63d 100644
--- a/core/schema.sql
+++ b/core/schema.sql
@@ -36,6 +36,7 @@ CREATE TABLE IF NOT EXISTS sessions (
     project_id INTEGER NOT NULL,
     started_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
     ended_at TIMESTAMP,
+    status TEXT DEFAULT 'running' CHECK (status IN ('running', 'paused', 'completed', 'stopped')),
     duration_seconds INTEGER DEFAULT 0,
     total_spent_ped REAL DEFAULT 0.0,  -- Decimal stored as REAL, handled in code
     total_return_ped REAL DEFAULT 0.0,