Lead show moved pane despite unsent text

internal/agents/hands.go

@@ -1,6 +1,12 @@
 package agents
 
-import "g.fc.run/misc/byre/internal/mcp"
+import (
+	"os"
+	"os/exec"
+	"path/filepath"
+
+	"g.fc.run/misc/byre/internal/mcp"
+)
 
 const screenshotGuidance = "\n- When a turn changes something you can see, you can show it in your final message: save screenshots with the Playwright tools (pages you serve on this task's ports) or hands' capture with save (apps on this Mac), and embed each as a Markdown image, ![what it shows](<path>), with the path the tool returned. They go to the task's media folder, outside the worktree, so they are never committed, and are deleted when the task closes. Leave out a screenshot that adds nothing to the text."
 
@@ -8,6 +14,34 @@ func MediaDir(worktreePath string) string {
 	return worktreePath + "-media"
 }
 
-func handsMCP(mediaDir string) mcp.Stdio {
-	return mcp.Stdio{Name: "hands", Command: "byre-hands", Args: []string{"--media-dir", mediaDir}}
+func (m *Manager) handsDir(sessionID string) string {
+	return filepath.Join(m.handsRoot, sessionID)
+}
+
+// replayd keys ScreenCaptureKit clients by executable path, so two hands
+// processes run from one path keep cancelling each other's connection.
+func (m *Manager) handsMCP(sessionID, mediaDir string) (mcp.Stdio, error) {
+	src, err := exec.LookPath("byre-hands")
+	if err != nil {
+		return mcp.Stdio{}, err
+	}
+	data, err := os.ReadFile(src)
+	if err != nil {
+		return mcp.Stdio{}, err
+	}
+	dir := m.handsDir(sessionID)
+	err = os.RemoveAll(dir)
+	if err != nil {
+		return mcp.Stdio{}, err
+	}
+	err = os.MkdirAll(dir, 0o755)
+	if err != nil {
+		return mcp.Stdio{}, err
+	}
+	bin := filepath.Join(dir, "byre-hands")
+	err = os.WriteFile(bin, data, 0o755)
+	if err != nil {
+		return mcp.Stdio{}, err
+	}
+	return mcp.Stdio{Name: "hands", Command: bin, Args: []string{"--media-dir", mediaDir}}, nil
 }