diff --git a/app/test_phase3_coding_scope.py b/app/test_phase3_coding_scope.py
new file mode 100644
index 0000000..e9a8fae
--- /dev/null
+++ b/app/test_phase3_coding_scope.py
@@ -0,0 +1,50 @@
+import asyncio, sqlite3
+from mcp.client.sse import sse_client
+from mcp import ClientSession
+
+def get_key(agent):
+    con = sqlite3.connect("data/context_hub.db")
+    cur = con.cursor()
+    cur.execute("SELECT api_key FROM api_keys WHERE agent_name=?", (agent,))
+    return cur.fetchone()[0]
+
+async def call_as(agent, tool, args):
+    key = get_key(agent)
+    async with sse_client("http://localhost:8000/mcp", headers={"X-API-Key": key}) as (read, write):
+        async with ClientSession(read, write) as session:
+            await session.initialize()
+            return await session.call_tool(tool, args)
+
+async def main():
+    print("=== TEST 1 : CLAUDE record_lesson (coding, common-error) ===")
+    r = await call_as("CLAUDE", "record_lesson", {
+        "scope": "coding", "type": "common-error",
+        "title": "Test phase 3 - a supprimer",
+        "body": "Entree de test pour valider record_lesson/get_context_pack.",
+        "project": "context-hub", "tags": ["test"]
+    })
+    print(r.content[0].text)
+
+    print("=== TEST 2 : GEMINI record_lesson (coding, best-practice) ===")
+    r2 = await call_as("GEMINI", "record_lesson", {
+        "scope": "coding", "type": "best-practice",
+        "title": "Test phase 3 bis - a supprimer",
+        "body": "Deuxieme entree de test, agent different.",
+    })
+    print(r2.content[0].text)
+
+    print("=== TEST 3 : HERMES_TT tente record_lesson (coding) -- doit etre refuse (pas de scope coding) ===")
+    r3 = await call_as("HERMES_TT", "record_lesson", {
+        "scope": "coding", "type": "decision", "title": "x", "body": "y"
+    })
+    print(r3.content[0].text)
+
+    print("=== TEST 4 : get_context_pack(coding) -- doit contenir les 2 entrees ===")
+    r4 = await call_as("CLAUDE", "get_context_pack", {"scope": "coding"})
+    print(r4.content[0].text)
+
+    print("=== TEST 5 : get_context_pack(coding, project=context-hub) -- doit filtrer a 1 entree ===")
+    r5 = await call_as("CLAUDE", "get_context_pack", {"scope": "coding", "project": "context-hub"})
+    print(r5.content[0].text)
+
+asyncio.run(main())