From ab2c05acb2bb8a4d251aab1e8161134d777ef42d Mon Sep 17 00:00:00 2001
From: alexion <contact@alexion.dev>
Date: Fri, 24 Jul 2026 09:01:24 -0400
Subject: [PATCH] feat: add dev shell with python3 and the benchmark skill
 (task 0004)

nix develop places benchmark-skill into ./.claude/skills/ (so /benchmark-skill
is available in this repo) and puts python3 on PATH to run the deterministic
core without a one-off nix shell.
---
 flake.nix | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/flake.nix b/flake.nix
index dc1cd72..d4f5f9e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -92,6 +92,15 @@
               inherit pkgs;
             };
           };
+
+          # A working shell for developing skills in this repo.
+          # python3 runs the benchmark skill's deterministic core.
+          # The benchmark-skill is placed into ./.claude/skills/ on entry, so
+          # /benchmark-skill is available while working in this repo.
+          devShells.default = pkgs.mkShell {
+            packages = [ pkgs.python3 ];
+            shellHook = mkSkillsShellHook [ (skillPackages pkgs).benchmark-skill ];
+          };
         }
       );
 }