diff --git a/pkgs/development/python-modules/llm-echo/default.nix b/pkgs/development/python-modules/llm-echo/default.nix
new file mode 100644
index 000000000000..3347f5280145
--- /dev/null
+++ b/pkgs/development/python-modules/llm-echo/default.nix
@@ -0,0 +1,45 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  setuptools,
+  llm,
+  llm-echo,
+  pytestCheckHook,
+  writableTmpDirAsHomeHook,
+}:
+
+buildPythonPackage rec {
+  pname = "llm-echo";
+  version = "0.3";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "simonw";
+    repo = "llm-echo";
+    tag = version;
+    hash = "sha256-KtdsvXJQRJ3EEJ25i6ccbVxMsWlDsxa+HJ7bFzyYGNI=";
+  };
+
+  build-system = [
+    setuptools
+    llm
+  ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+    writableTmpDirAsHomeHook
+  ];
+
+  pythonImportsCheck = [ "llm_echo" ];
+
+  passthru.tests = llm.mkPluginTest llm-echo;
+
+  meta = {
+    description = "Debug plugin for LLM";
+    homepage = "https://github.com/simonw/llm-echo";
+    changelog = "https://github.com/simonw/llm-echo/releases/tag/${version}/CHANGELOG.md";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ philiptaron ];
+  };
+}
diff --git a/pkgs/development/python-modules/llm/default.nix b/pkgs/development/python-modules/llm/default.nix
index c1f71fa10e16..80bed4ff6c2e 100644
--- a/pkgs/development/python-modules/llm/default.nix
+++ b/pkgs/development/python-modules/llm/default.nix
@@ -63,6 +63,7 @@ let
       llm-cmd ? false,
       llm-command-r ? false,
       llm-deepseek ? false,
+      llm-echo ? false,
       llm-fragments-github ? false,
       llm-fragments-pypi ? false,
       llm-gemini ? false,
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 8bded0dc781f..ea594d439326 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -8302,6 +8302,8 @@ self: super: with self; {
 
   llm-deepseek = callPackage ../development/python-modules/llm-deepseek { };
 
+  llm-echo = callPackage ../development/python-modules/llm-echo { };
+
   llm-fragments-github = callPackage ../development/python-modules/llm-fragments-github { };
 
   llm-fragments-pypi = callPackage ../development/python-modules/llm-fragments-pypi { };