diff --git a/config/default.nix b/config/default.nix
index 51225476c..f16d129d9 100644
--- a/config/default.nix
+++ b/config/default.nix
@@ -23,6 +23,7 @@ in
   ./karabiner
   ./llm
   ./openclaw
+  ./omp
   ./opencode
   ./pi
   ./serena
diff --git a/config/omp/config.tpl.yml b/config/omp/config.tpl.yml
new file mode 100644
index 000000000..e60017768
--- /dev/null
+++ b/config/omp/config.tpl.yml
@@ -0,0 +1,13 @@
+lastChangelogVersion: 13.13.2
+modelRoles:
+  default: codex/__GPT__
+display:
+  showTokenUsage: true
+theme:
+  dark: dark-dracula
+steeringMode: all
+followUpMode: all
+interruptMode: immediate
+doubleEscapeAction: none
+startup:
+  quiet: true
diff --git a/config/omp/config.yml b/config/omp/config.yml
new file mode 100644
index 000000000..baba33b0c
--- /dev/null
+++ b/config/omp/config.yml
@@ -0,0 +1,13 @@
+lastChangelogVersion: 13.13.2
+modelRoles:
+  default: codex/gpt-5.4
+display:
+  showTokenUsage: true
+theme:
+  dark: dark-dracula
+steeringMode: all
+followUpMode: all
+interruptMode: immediate
+doubleEscapeAction: none
+startup:
+  quiet: true
diff --git a/config/omp/default.nix b/config/omp/default.nix
new file mode 100644
index 000000000..3d49bf44e
--- /dev/null
+++ b/config/omp/default.nix
@@ -0,0 +1,10 @@
+{ lib, ... }:
+{
+  # Use activation script instead of home.file symlink.
+  # Keep only the tracked config.yml in dotfiles and leave runtime state untouched.
+  home.activation.ompConfig = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
+    $DRY_RUN_CMD mkdir -p ~/.omp/agent
+    $DRY_RUN_CMD cp -f ${./config.yml} ~/.omp/agent/config.yml
+    $DRY_RUN_CMD chmod 644 ~/.omp/agent/config.yml
+  '';
+}
diff --git a/scripts/llm-update.sh b/scripts/llm-update.sh
index 25f438d2f..0269b3897 100755
--- a/scripts/llm-update.sh
+++ b/scripts/llm-update.sh
@@ -56,6 +56,7 @@ declare -A TEMPLATES=(
   ["config/ccs/glm.settings.tpl.json"]=config/ccs/glm.settings.template.json
   ["config/codex/config.tpl.toml"]=config/codex/config.toml
   ["config/cliproxyapi/config.tpl.yaml"]=config/cliproxyapi/config.template.yaml
+  ["config/omp/config.tpl.yml"]=config/omp/config.yml
   ["config/pi/models.tpl.json"]=config/pi/models.json
   ["config/pi/settings.tpl.json"]=config/pi/settings.json
   ["home-manager/programs/fish/functions/_coxe_function.tpl.fish"]=home-manager/programs/fish/functions/_coxe_function.fish