feat: re-export Hermes skills renderer

lib/default.nix

@@ -1,5 +1,16 @@
 # lib/default.nix — Entry point for m3ta-home library functions.
 #
 # Called by flake.nix: import ./lib { inherit inputs; selfPath = self.outPath; }
-# Re-exports mkHome and future library functions.
-{inputs, selfPath}: import ./mkHome.nix {inherit inputs selfPath;}
+# Re-exports mkHome and focused helpers for consumers that should not depend on
+# m3ta-home's implementation inputs directly.
+{
+  inputs,
+  selfPath,
+}: let
+  mkHomeLib = import ./mkHome.nix {inherit inputs selfPath;};
+in
+  mkHomeLib
+  // {
+    mkHermesSkillsDir = {system, ...} @ args:
+      inputs.agent-lib.lib.${system}.mkHermesSkillsDir (builtins.removeAttrs args ["system"]);
+  }