diff --git a/flake.nix b/flake.nix
index 263c2e7..dd82bf7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -84,7 +84,9 @@
     flake-parts.lib.mkFlake { inherit inputs; } (
       { lib, ... }:
       let
-        # claude-code tracks nixpkgs-unstable regardless of the pinned nixpkgs.
+        # These track nixpkgs-unstable regardless of the pinned nixpkgs.
+        # gcx: 26.05 ships 0.2.14, which predates the stacks/contexts config
+        # model and the agento11y commands the tooling expects.
         overlays = [
           (_final: prev: {
             inherit
@@ -93,6 +95,7 @@
                 config.allowUnfree = true;
               })
               claude-code
+              gcx
               ;
           })
           # commitizen 4.13.9's regression test for the invalid-command error
diff --git a/users/emmathorpe/work.nix b/users/emmathorpe/work.nix
index adbf0e6..29d18c3 100644
--- a/users/emmathorpe/work.nix
+++ b/users/emmathorpe/work.nix
@@ -46,6 +46,7 @@
     pkgs.tflint # Terraform linter (catches what terraformls won't)
     pkgs.terraform-docs # generate Terraform module docs
     pkgs.yq-go # jq for YAML
+    pkgs.gcx # Grafana Cloud CLI (dashboards, SLOs, synthetics, alerts)
   ];
   services.ssh-agent.enable = true;
   home.shellAliases = {