From bf98df490c3662c8ee4fee649d8ad38bc2c10f6e Mon Sep 17 00:00:00 2001
From: OpenClaw Agent <openclaw@example.com>
Date: Mon, 21 Sep 2026 20:39:53 +0800
Subject: [PATCH] fix: align CHFS files invalid-path response

---
 chfs-ng/internal/api/server.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/chfs-ng/internal/api/server.go b/chfs-ng/internal/api/server.go
index 2d6ae98..d842e37 100644
--- a/chfs-ng/internal/api/server.go
+++ b/chfs-ng/internal/api/server.go
@@ -177,7 +177,9 @@ func (s *Server) files(w http.ResponseWriter, r *http.Request) {
 	}
 	list, e := s.Store.List(p)
 	if e != nil {
-		http.Error(w, e.Error(), 404)
+		// CHFS treats a non-directory / nonexistent filepath as a malformed
+		// files request rather than exposing the filesystem error.
+		writeJSONError(w, http.StatusBadRequest, "invalid parameter")
 		return
 	}
 	out := make([]fileInfo, 0, len(list))