Add byre-hands: screen capture and app control tools for agents

internal/agents/hands.go

@@ -0,0 +1,7 @@
+package agents
+
+import "g.fc.run/misc/byre/internal/mcp"
+
+func handsMCP() mcp.Stdio {
+	return mcp.Stdio{Name: "hands", Command: "byre-hands", Args: []string{}}
+}

internal/agents/manager.go

@@ -730,6 +730,9 @@ func (m *Manager) startLive(ctx context.Context, sess api.AgentSession, task api
 	}
 	env := portEnv(task)
 	stdio := []mcp.Stdio{}
+	if sess.Role == api.Implementer {
+		stdio = []mcp.Stdio{handsMCP()}
+	}
 	if sess.Role == api.Reviewer {
 		r, err := m.store.ReviewBySession(ctx, sess.Id)
 		if err != nil {