diff --git a/cli/loop_cli.py b/cli/loop_cli.py
index 5d76b62d..9e3bc113 100644
--- a/cli/loop_cli.py
+++ b/cli/loop_cli.py
@@ -41,6 +41,7 @@
 from core.application.errors import ApplicationError
 from core.config import ConfigError
 from core.domain.thread_goal import ThreadGoalStatus
+from core.platform_compat import configure_utf8_stdio
 
 _STATUS_STYLE = {
     "succeeded": "bold green",
@@ -161,6 +162,9 @@ def on_progress(goal) -> None:
 
 
 def main(argv: list[str] | None = None) -> int:
+    # Windows consoles default to GBK/cp936; rich and model output emit UTF-8.
+    # Reconfigure early so headless runs never crash rendering non-GBK text.
+    configure_utf8_stdio()
     parser = argparse.ArgumentParser(
         prog="deepcode loop",
         description="Run a durable Goal on the shared ordinary-Turn runtime.",
diff --git a/core/harness/hooks/discovery.py b/core/harness/hooks/discovery.py
index 0ef40663..c98164a8 100644
--- a/core/harness/hooks/discovery.py
+++ b/core/harness/hooks/discovery.py
@@ -103,7 +103,7 @@ def _load_hook_events(path: Path, warnings: list[str]) -> dict | None:
     if not path.is_file():
         return None
     try:
-        data = json.loads(path.read_text())
+        data = json.loads(path.read_text(encoding="utf-8"))
     except (OSError, ValueError) as exc:
         warnings.append(f"failed to read hooks config {path}: {exc}")
         return None