diff --git a/devenv.nix b/devenv.nix
index 2fcd8d2..3bccac5 100644
--- a/devenv.nix
+++ b/devenv.nix
@@ -24,6 +24,8 @@
     pkgs.sqlfluff
     pkgs.jq
     pkgs.libyaml
+    pkgs.pi-coding-agent
+    pkgs.claude-code
   ];
 
   enterShell = ''
diff --git a/devenv.yaml b/devenv.yaml
index fa85261..b51082a 100644
--- a/devenv.yaml
+++ b/devenv.yaml
@@ -16,3 +16,4 @@ inputs:
     inputs:
       nixpkgs:
         follows: nixpkgs
+allowUnfree: true