diff --git a/Makefile b/Makefile
index d6f0a77..34f25a7 100644
--- a/Makefile
+++ b/Makefile
@@ -16,10 +16,10 @@ ui-mindmap:
 >cd ui/cli-ia-mindmap && npm install && npm run dev
 
 lint:
->flake8 .
+>python -m flake8 .
 
 typecheck:
->mypy bus_server.py kb.py agent_server.py server tests
+>python -m mypy src/bus_server.py src/core/kb.py src/agent_server.py src/server
 
 test:
 >python -m pytest -q
diff --git a/models/backend.py b/models/backend.py
index 547e6ea..1f3caa9 100644
--- a/models/backend.py
+++ b/models/backend.py
@@ -112,7 +112,7 @@ def chat(self, messages: List[Dict[str, str]]) -> str:
             if role == "system":
                 system_content = (system_content + "\n" if system_content else "") + content
                 continue
-            converted.append({"role": role, "content": [{"type": "text", "text": content}]}
+            converted.append({"role": role, "content": [{"type": "text", "text": content}]})
         
         headers = {
             "x-api-key": self.api_key,
@@ -149,4 +149,4 @@ def make_client(kind: str, endpoint: str, model: str):
     if kind == "anthropic":
         # Anthropic ignores the OpenAI-style endpoint; pass endpoint if overridden
         return AnthropicChat(model=model, endpoint=endpoint or None)
-    raise ValueError(f"unknown model backend {kind}")
\ No newline at end of file
+    raise ValueError(f"unknown model backend {kind}")
diff --git a/src/agent_server.py b/src/agent_server.py
index f830723..d9af81e 100644
--- a/src/agent_server.py
+++ b/src/agent_server.py
@@ -312,7 +312,7 @@ async def health_check() -> Dict[str, str]:
 @app.post("/wake")
 async def wake_up() -> Dict[str, str]:
     if bus is not None:
-        bus.subscribe(role, lambda msg: logger.info("[%s] received: %s", role, msg))  # type: ignore[attr-defined]
+        logger.info("Bus client active for role %s", role)
         init_cron()
     return {"status": "awake", "role": role}
 
diff --git a/src/bus_server.py b/src/bus_server.py
index 8fb3fa5..d3d9ffe 100644
--- a/src/bus_server.py
+++ b/src/bus_server.py
@@ -10,7 +10,7 @@
 import logging
 import traceback
 import re
-from typing import Any, Dict
+from typing import Any, AsyncIterator, Dict
 
 from fastapi import FastAPI, Depends, HTTPException, Request, status
 from contextlib import asynccontextmanager
@@ -25,7 +25,7 @@
 from integrations import social_hooks
 
 @asynccontextmanager
-async def lifespan(app: FastAPI):
+async def lifespan(app: FastAPI) -> AsyncIterator[None]:
     try:
         yield
     finally:
diff --git a/src/server/main.py b/src/server/main.py
index 2954341..f4ab96b 100644
--- a/src/server/main.py
+++ b/src/server/main.py
@@ -6,7 +6,7 @@
 import json
 import os
 from pathlib import Path
-from typing import Any, Dict
+from typing import Any, AsyncIterator, Dict
 import logging
 import traceback
 import redis
@@ -49,7 +49,7 @@
 
 
 @asynccontextmanager
-async def lifespan(app: FastAPI):
+async def lifespan(app: FastAPI) -> AsyncIterator[None]:
     await init_db()
     try:
         yield
@@ -81,7 +81,11 @@ async def healthz() -> Dict[str, bool]:
 async def readyz() -> Dict[str, bool]:
     db_ok = await ping_db()
     try:
-        redis_ok = bool(await get_redis().ping())
+        ping_result = get_redis().ping()
+        if asyncio.iscoroutine(ping_result):
+            redis_ok = bool(await ping_result)
+        else:
+            redis_ok = bool(ping_result)
     except redis.exceptions.ConnectionError as exc:
         logger.error("Redis connection error during readyz: %s", exc)
         REDIS_READYZ_FAILURES.labels(reason="connection_error").inc()