Add beads Claude plugin installation via home-manager

- Add beadsRepo reference from flake input
- Add activation script to install beads as marketplace plugin
- Updates known_marketplaces.json and config.json declaratively

flake.lock

@@ -1,5 +1,26 @@
 {
   "nodes": {
+    "beads": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixpkgs-unstable"
+        ]
+      },
+      "locked": {
+        "lastModified": 1767911810,
+        "narHash": "sha256-0L4ATr01UsmBC0rSW62VIMVVSUihAQu2+ZOoHk9BQnA=",
+        "owner": "steveyegge",
+        "repo": "beads",
+        "rev": "28ff9fe9919a9665a0f00f5b3fcd084b43fb6cc3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "steveyegge",
+        "repo": "beads",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -16,6 +37,24 @@
         "type": "github"
       }
     },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "google-cookie-retrieval": {
       "inputs": {
         "nixpkgs": [
@@ -258,6 +297,7 @@
     },
     "root": {
       "inputs": {
+        "beads": "beads",
         "google-cookie-retrieval": "google-cookie-retrieval",
         "home-manager": "home-manager",
         "home-manager-unstable": "home-manager-unstable",
@@ -269,6 +309,21 @@
         "plasma-manager": "plasma-manager",
         "plasma-manager-unstable": "plasma-manager-unstable"
       }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -42,6 +42,11 @@
       url = "github:Jovian-Experiments/Jovian-NixOS";
       inputs.nixpkgs.follows = "nixpkgs-unstable";
     };
+
+    beads = {
+      url = "github:steveyegge/beads";
+      inputs.nixpkgs.follows = "nixpkgs-unstable";
+    };
   };
 
   outputs = { self, nixpkgs, nixpkgs-unstable, nixos-wsl, ... } @ inputs: let

home/roles/development/default.nix

@@ -5,7 +5,7 @@ with lib;
 let
   cfg = config.home.roles.development;
 
-  # Fetch the claude-plugins repository
+  # Fetch the claude-plugins repository (for humanlayer commands/agents)
   # Update the rev to get newer versions of the commands
   claudePluginsRepo = builtins.fetchGit {
     url = "https://github.com/jeffh/claude-plugins.git";
@@ -14,6 +14,9 @@ let
     rev = "5e3e4d937162185b6d78c62022cbfd1c8ad42c4c";
     ref = "main";
   };
+
+  # Beads repository is available via globalInputs.beads from the flake
+  beadsRepo = globalInputs.beads;
 in
 {
   options.home.roles.development = {
@@ -36,6 +39,7 @@ in
 
   config = mkIf cfg.enable {
     home.packages = [
+      globalInputs.beads.packages.${system}.default
       pkgs.unstable.claude-code
       pkgs.unstable.claude-code-router
       pkgs.unstable.codex
@@ -89,6 +93,51 @@ in
       }"
     '';
 
+    # Install beads Claude plugin as a marketplace
+    home.activation.claudeCodeBeadsPlugin = lib.hm.dag.entryAfter ["writeBoundary" "claudeCodeCommands"] ''
+      # Create plugin directories
+      mkdir -p ~/.claude/plugins/marketplaces
+      mkdir -p ~/.claude/plugins/repos
+
+      # Remove old beads marketplace if it exists (to ensure clean update)
+      rm -rf ~/.claude/plugins/marketplaces/beads-marketplace
+
+      # Copy beads repository to marketplaces directory
+      # Using cp -r because the source is a Nix store path (read-only)
+      cp -r ${beadsRepo} ~/.claude/plugins/marketplaces/beads-marketplace
+      chmod -R u+w ~/.claude/plugins/marketplaces/beads-marketplace
+
+      # Update known_marketplaces.json to include beads-marketplace
+      KNOWN_MARKETPLACES="$HOME/.claude/plugins/known_marketplaces.json"
+      if [ ! -f "$KNOWN_MARKETPLACES" ]; then
+        echo '{}' > "$KNOWN_MARKETPLACES"
+      fi
+
+      # Add beads-marketplace entry using jq (merge with existing)
+      ${pkgs.jq}/bin/jq --arg installPath "$HOME/.claude/plugins/marketplaces/beads-marketplace" \
+        '. + {"beads-marketplace": {
+          "source": {"source": "github", "repo": "steveyegge/beads"},
+          "installLocation": $installPath,
+          "lastUpdated": (now | strftime("%Y-%m-%dT%H:%M:%S.000Z"))
+        }}' "$KNOWN_MARKETPLACES" > "$KNOWN_MARKETPLACES.tmp" && mv "$KNOWN_MARKETPLACES.tmp" "$KNOWN_MARKETPLACES"
+
+      # Update config.json to install the beads plugin
+      CONFIG_JSON="$HOME/.claude/plugins/config.json"
+      if [ ! -f "$CONFIG_JSON" ]; then
+        echo '{"repositories": {}}' > "$CONFIG_JSON"
+      fi
+
+      # Add beads to installed repositories
+      ${pkgs.jq}/bin/jq --arg installPath "$HOME/.claude/plugins/marketplaces/beads-marketplace" \
+        '.repositories["beads-marketplace/beads"] = {
+          "source": {"source": "marketplace", "marketplace": "beads-marketplace", "plugin": "beads"},
+          "installLocation": $installPath,
+          "installedAt": (now | strftime("%Y-%m-%dT%H:%M:%S.000Z"))
+        }' "$CONFIG_JSON" > "$CONFIG_JSON.tmp" && mv "$CONFIG_JSON.tmp" "$CONFIG_JSON"
+
+      $DRY_RUN_CMD echo "Claude Code beads plugin installed successfully"
+    '';
+
     # Note: modules must be imported at top-level home config
   };
 }