diff --git a/src/takopi/exec_bridge.py b/src/takopi/exec_bridge.py
index 2955d44..c8c8721 100644
--- a/src/takopi/exec_bridge.py
+++ b/src/takopi/exec_bridge.py
@@ -351,14 +351,19 @@ def _parse_bridge_config(
         token = config["bot_token"]
     except KeyError:
         raise ConfigError(f"Missing key `bot_token` in {config_path}.") from None
+    if not isinstance(token, str) or not token.strip():
+        raise ConfigError(
+            f"Invalid `bot_token` in {config_path}; expected a non-empty string."
+        ) from None
     try:
-        chat_id = int(config["chat_id"])
+        chat_id_value = config["chat_id"]
     except KeyError:
         raise ConfigError(f"Missing key `chat_id` in {config_path}.") from None
-    except (TypeError, ValueError):
+    if isinstance(chat_id_value, bool) or not isinstance(chat_id_value, int):
         raise ConfigError(
             f"Invalid `chat_id` in {config_path}; expected an integer."
         ) from None
+    chat_id = chat_id_value
 
     codex_cmd = shutil.which("codex")
     if not codex_cmd:
diff --git a/tests/test_exec_bridge.py b/tests/test_exec_bridge.py
index a8d8388..fccb304 100644
--- a/tests/test_exec_bridge.py
+++ b/tests/test_exec_bridge.py
@@ -1,5 +1,7 @@
 import asyncio
 
+import pytest
+
 from takopi.exec_bridge import (
     extract_session_id,
     prepare_telegram,
@@ -8,6 +10,36 @@ from takopi.exec_bridge import (
 )
 
 
+def _patch_config(monkeypatch, config):
+    from pathlib import Path
+
+    from takopi import exec_bridge
+
+    monkeypatch.setattr(
+        exec_bridge,
+        "load_telegram_config",
+        lambda: (config, Path("takopi.toml")),
+    )
+
+
+def test_parse_bridge_config_rejects_empty_token(monkeypatch) -> None:
+    from takopi import exec_bridge
+
+    _patch_config(monkeypatch, {"bot_token": "   ", "chat_id": 123})
+
+    with pytest.raises(exec_bridge.ConfigError, match="bot_token"):
+        exec_bridge._parse_bridge_config(final_notify=True, profile=None)
+
+
+def test_parse_bridge_config_rejects_string_chat_id(monkeypatch) -> None:
+    from takopi import exec_bridge
+
+    _patch_config(monkeypatch, {"bot_token": "token", "chat_id": "123"})
+
+    with pytest.raises(exec_bridge.ConfigError, match="chat_id"):
+        exec_bridge._parse_bridge_config(final_notify=True, profile=None)
+
+
 def test_extract_session_id_finds_uuid_v7() -> None:
     uuid = "019b66fc-64c2-7a71-81cd-081c504cfeb2"
     text = f"resume: `{uuid}`"