mcp: manage python repl sessions (#123)

Co-authored-by: Codex <codex@openai.com>

Author: andrewgazelka

flake.nix

@@ -85,7 +85,7 @@
           minestom.servers.hello = ./packages/minestom/servers/hello;
           nixCargoUnit = ./packages/nix-cargo-unit;
           ociImageBuilder = ./packages/oci-image-builder;
-          pythonMcpServer = ./packages/python-mcp-server;
+          mcp = ./packages/mcp;
           tonboArtifacts = ./packages/tonbo-artifacts;
           vineflower = ./packages/vineflower;
         };

lib/default.nix

@@ -694,7 +694,7 @@ let
           inherit pkgs;
           ix = ixForPackages;
         };
-        python-mcp-server = pkgs.callPackage paths.packages.pythonMcpServer {
+        mcp = pkgs.callPackage paths.packages.mcp {
           ix = ixForPackages;
         };
         tonbo-artifacts = pkgs.callPackage paths.packages.tonboArtifacts { };

lib/per-system.nix

@@ -299,7 +299,7 @@ in
         llm-clippy
         nix-cargo-unit
         oci-image-builder
-        python-mcp-server
+        mcp
         ;
       minestom-hello-server-jar = repoPackages.minestom.helloServerJar;
     }

modules/profiles/base/default.nix

@@ -390,12 +390,12 @@ in
           ;
       })
       ++ [
-        # Persistent Python session exposed over MCP. Lets an agent inside
+        # Persistent Python sessions exposed over MCP. Lets an agent inside
         # the VM (or one shelling in via `ix shell`) hand structured Python
         # off to a client without round-tripping shell quoting, and keeps
         # the interpreter warm across calls so iterative debugging on a
         # live process or memfd doesn't re-import every step.
-        ix.packages.python-mcp-server
+        ix.packages.mcp
       ];
 
     # Pre-create the workspace at boot so login.nu can cd into it