diff --git a/tests/test_plan_sessions_wp15.py b/tests/test_plan_sessions_wp15.py
new file mode 100644
index 0000000..72d3fab
--- /dev/null
+++ b/tests/test_plan_sessions_wp15.py
@@ -0,0 +1,121 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""Integration/E2E-Tests für plan_sessions (v0.1.0)."""
+import os
+import requests
+from datetime import datetime, timezone
+
+BASE = os.getenv("BASE_URL", "http://127.0.0.1:8000").rstrip("/")
+
+
+def test_plan_session_create_read():
+    # 1) Template minimal
+    tpl = {
+        "name": "Std 60 for sessions",
+        "discipline": "Karate",
+        "age_group": "Erwachsene",
+        "target_group": "Breitensport",
+        "total_minutes": 60,
+        "sections": [
+            {"name": "Warmup", "target_minutes": 10, "must_keywords": [], "forbid_keywords": [], "capability_targets": {}}
+        ],
+        "goals": [],
+        "equipment_allowed": [],
+        "created_by": "tester",
+        "version": "1.0"
+    }
+    r1 = requests.post(f"{BASE}/plan_templates", json=tpl)
+    assert r1.status_code == 200, r1.text
+
+    # 2) Plan minimal
+    plan = {
+        "template_id": r1.json()["id"],
+        "title": "Session‑Plan",
+        "discipline": "Karate",
+        "age_group": "Erwachsene",
+        "target_group": "Breitensport",
+        "total_minutes": 60,
+        "sections": [
+            {"name": "Warmup", "minutes": 10, "items": []}
+        ],
+        "goals": [],
+        "capability_summary": {},
+        "created_by": "tester",
+        "created_at": datetime.now(timezone.utc).isoformat(),
+        "source": "test"
+    }
+    r2 = requests.post(f"{BASE}/plan", json=plan)
+    assert r2.status_code == 200, r2.text
+    plan_id = r2.json()["id"]
+
+    # 3) Session anlegen
+    session = {
+        "plan_id": plan_id,
+        "executed_at": datetime.now(timezone.utc).isoformat(),
+        "location": "Dojo A",
+        "coach": "Sensei K.",
+        "group_label": "Montag 18:00",
+        "feedback": {"rating": 4, "notes": "Gute Energie, Warmup etwas zu kurz."},
+        "used_equipment": [" Pratzen ", "Bälle", "pratzen"]
+    }
+    r3 = requests.post(f"{BASE}/plan_sessions", json=session)
+    assert r3.status_code == 200, r3.text
+    sess_id = r3.json()["id"]
+
+    # 4) Session lesen & Normalisierung prüfen
+    r4 = requests.get(f"{BASE}/plan_sessions/{sess_id}")
+    assert r4.status_code == 200
+    js = r4.json()
+    # used_equipment dedupliziert/trimmed/casefolded → len == 2
+    assert len(js["used_equipment"]) == 2
+    assert "Pratzen" in js["used_equipment"] or "pratzen" in [x.lower() for x in js["used_equipment"]]
+
+
+def test_plan_session_invalid_rating():
+    # Minimaler Plan für Referenz
+    tpl = {
+        "name": "Std 45 for sessions",
+        "discipline": "Karate",
+        "age_group": "Erwachsene",
+        "target_group": "Breitensport",
+        "total_minutes": 45,
+        "sections": [
+            {"name": "Warmup", "target_minutes": 10, "must_keywords": [], "forbid_keywords": [], "capability_targets": {}}
+        ],
+        "goals": [],
+        "equipment_allowed": [],
+        "created_by": "tester",
+        "version": "1.0"
+    }
+    r1 = requests.post(f"{BASE}/plan_templates", json=tpl)
+    assert r1.status_code == 200
+    plan = {
+        "template_id": r1.json()["id"],
+        "title": "Fehlerfall",
+        "discipline": "Karate",
+        "age_group": "Erwachsene",
+        "target_group": "Breitensport",
+        "total_minutes": 45,
+        "sections": [
+            {"name": "Warmup", "minutes": 10, "items": []}
+        ],
+        "goals": [],
+        "capability_summary": {},
+        "created_by": "tester",
+        "created_at": datetime.now(timezone.utc).isoformat(),
+        "source": "test"
+    }
+    r2 = requests.post(f"{BASE}/plan", json=plan)
+    assert r2.status_code == 200
+
+    bad_session = {
+        "plan_id": r2.json()["id"],
+        "executed_at": datetime.now(timezone.utc).isoformat(),
+        "location": "Dojo B",
+        "coach": "Assist.",
+        "group_label": "Dienstag 19:00",
+        "feedback": {"rating": 7, "notes": "invalid"},  # ungültig (1..5)
+        "used_equipment": []
+    }
+    r_bad = requests.post(f"{BASE}/plan_sessions", json=bad_session)
+    assert r_bad.status_code == 422
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