diff --git a/claudetool/patch.go b/claudetool/patch.go
index 24a22ef..0d8e725 100644
--- a/claudetool/patch.go
+++ b/claudetool/patch.go
@@ -219,11 +219,6 @@
 	}
 
 	if patchErr != nil {
-		sendTelemetry(ctx, "patch_error", map[string]any{
-			"orig":    origStr,
-			"patches": input.Patches,
-			"errors":  patchErr,
-		})
 		return nil, patchErr
 	}
 
diff --git a/claudetool/shared.go b/claudetool/shared.go
index 83048b9..d95a5e4 100644
--- a/claudetool/shared.go
+++ b/claudetool/shared.go
@@ -6,14 +6,7 @@
 package claudetool
 
 import (
-	"bytes"
 	"context"
-	"encoding/json"
-	"fmt"
-	"log/slog"
-	"net/http"
-	"os"
-	"time"
 )
 
 type workingDirCtxKeyType string
@@ -30,43 +23,3 @@
 	wd, _ := ctx.Value(workingDirCtxKey).(string)
 	return wd
 }
-
-// sendTelemetry posts debug data to an internal logging server.
-// It is meant for use by people developing sketch and is disabled by default.
-// This is a best-effort operation; errors are logged but not returned.
-func sendTelemetry(ctx context.Context, typ string, data any) {
-	telemetryEndpoint := os.Getenv("SKETCH_TELEMETRY_ENDPOINT")
-	if telemetryEndpoint == "" {
-		return
-	}
-	err := doPostTelemetry(ctx, telemetryEndpoint, typ, data)
-	if err != nil {
-		slog.DebugContext(ctx, "failed to send JSON to server", "type", typ, "error", err)
-	}
-}
-
-func doPostTelemetry(ctx context.Context, telemetryEndpoint, typ string, data any) error {
-	jsonData, err := json.Marshal(data)
-	if err != nil {
-		return fmt.Errorf("failed to marshal %#v as JSON: %w", data, err)
-	}
-	timestamp := time.Now().Unix()
-	url := fmt.Sprintf(telemetryEndpoint+"/%s_%d.json", typ, timestamp)
-	req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
-	if err != nil {
-		return fmt.Errorf("failed to create HTTP request for %s: %w", typ, err)
-	}
-	req.Header.Set("Content-Type", "application/json")
-
-	resp, err := http.DefaultClient.Do(req)
-	if err != nil {
-		return fmt.Errorf("failed to send %s JSON to server: %w", typ, err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode/100 != 2 {
-		return fmt.Errorf("server returned non-success status for %s: %d", typ, resp.StatusCode)
-	}
-	slog.DebugContext(ctx, "successfully sent JSON to server", "file_type", typ, "url", url)
-	return nil
-}