diff --git a/internal/claudebox/server.go b/internal/claudebox/server.go
index 2a6d56e..fda8440 100644
--- a/internal/claudebox/server.go
+++ b/internal/claudebox/server.go
@@ -14,6 +14,14 @@ import (
 	"github.com/orchard9/rdev/pkg/api"
 )
 
+// writeRawJSON writes a raw JSON response without the rdev-api wrapper.
+// The claudebox sidecar uses direct JSON responses, not the {data, meta} format.
+func writeRawJSON(w http.ResponseWriter, status int, data any) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	_ = json.NewEncoder(w).Encode(data)
+}
+
 // Server handles HTTP requests for claudebox operations.
 type Server struct {
 	executor   *Executor
@@ -65,7 +73,7 @@ func (s *Server) handleHealth(w http.ResponseWriter, r *http.Request) {
 		Timestamp: time.Now().UTC().Format(time.RFC3339),
 		WorkDir:   s.executor.workDir,
 	}
-	api.WriteJSON(w, r, http.StatusOK, resp)
+	writeRawJSON(w, http.StatusOK, resp)
 }
 
 // ExecuteRequest is the request to execute Claude Code.
@@ -120,7 +128,7 @@ func (s *Server) handleExecute(w http.ResponseWriter, r *http.Request) {
 		resp.Error = result.Error.Error()
 	}
 
-	api.WriteJSON(w, r, http.StatusOK, resp)
+	writeRawJSON(w, http.StatusOK, resp)
 }
 
 // StreamEvent is an SSE event for streaming execution.
@@ -234,7 +242,7 @@ func (s *Server) handleGitClone(w http.ResponseWriter, r *http.Request) {
 		resp.Error = result.Error.Error()
 	}
 
-	api.WriteJSON(w, r, http.StatusOK, resp)
+	writeRawJSON(w, http.StatusOK, resp)
 }
 
 // GitCommitAndPushRequest is the request to commit and push changes.
@@ -286,7 +294,7 @@ func (s *Server) handleGitCommitAndPush(w http.ResponseWriter, r *http.Request)
 		resp.Error = result.Error.Error()
 	}
 
-	api.WriteJSON(w, r, http.StatusOK, resp)
+	writeRawJSON(w, http.StatusOK, resp)
 }
 
 // GitStatusResponse is the response from git status.
@@ -309,14 +317,14 @@ func (s *Server) handleGitStatus(w http.ResponseWriter, r *http.Request) {
 
 	status, err := s.gitOps.Status(ctx, workDir)
 	if err != nil {
-		api.WriteJSON(w, r, http.StatusOK, GitStatusResponse{
+		writeRawJSON(w, http.StatusOK, GitStatusResponse{
 			IsRepo: false,
 			Error:  err.Error(),
 		})
 		return
 	}
 
-	api.WriteJSON(w, r, http.StatusOK, status)
+	writeRawJSON(w, http.StatusOK, status)
 }
 
 // SDLCRequest is the request to run an SDLC command.
@@ -364,5 +372,5 @@ func (s *Server) handleSDLC(w http.ResponseWriter, r *http.Request) {
 		resp.Error = result.Error.Error()
 	}
 
-	api.WriteJSON(w, r, http.StatusOK, resp)
+	writeRawJSON(w, http.StatusOK, resp)
 }