diff --git a/package.json b/package.json
index dd88859f5..a115769bc 100644
--- a/package.json
+++ b/package.json
@@ -56,6 +56,11 @@
     "build:native": "node native/scripts/build.js",
     "build:native:dev": "node native/scripts/build.js --dev",
     "dev": "node scripts/dev.js",
+    "dev:symlink": "bash scripts/dev-symlink.sh",
+    "dev:symlink:remove": "bash scripts/dev-symlink.sh --remove",
+    "dev:symlink:status": "bash scripts/dev-symlink.sh --status",
+    "dev:clean": "rm -rf ~/.gsd/agent/{extensions,skills,agents,AGENTS.md} && npm run build && npm run pi:install-global",
+    "dev:full": "npm run dev:clean && node dist/loader.js",
     "postinstall": "node scripts/link-workspace-packages.cjs && node scripts/postinstall.js",
     "pi:install-global": "node scripts/install-pi-global.js",
     "pi:uninstall-global": "node scripts/uninstall-pi-global.js",
diff --git a/scripts/dev-symlink.sh b/scripts/dev-symlink.sh
new file mode 100755
index 000000000..3eec0797e
--- /dev/null
+++ b/scripts/dev-symlink.sh
@@ -0,0 +1,155 @@
+#!/bin/bash
+# dev-symlink.sh — Symlink src/resources/ to ~/.gsd/agent/ for live development
+#
+# This allows you to modify extensions/skills/agents in your checkout and have
+# changes reflected immediately without running pi:install-global.
+#
+# Usage:
+#   ./scripts/dev-symlink.sh      # Create symlinks
+#   ./scripts/dev-symlink.sh --remove  # Remove symlinks, restore copies
+#   ./scripts/dev-symlink.sh --status   # Check current state
+
+set -e
+
+AGENT_DIR="$HOME/.gsd/agent"
+SRC_RESOURCES="$PWD/src/resources"
+EXTENSIONS_SRC="$SRC_RESOURCES/extensions"
+SKILLS_SRC="$SRC_RESOURCES/skills"
+AGENTS_SRC="$SRC_RESOURCES/agents"
+WORKFLOW_SRC="$SRC_RESOURCES/GSD-WORKFLOW.md"
+
+AGENT_EXTENSIONS="$AGENT_DIR/extensions"
+AGENT_SKILLS="$AGENT_DIR/skills"
+AGENT_AGENTS="$AGENT_DIR/agents"
+AGENT_AGENTS_MD="$AGENT_DIR/AGENTS.md"
+AGENT_WORKFLOW="$HOME/.gsd/GSD-WORKFLOW.md"
+
+MODE="${1:-create}"
+
+echo "🔧 GSD Development Symlinks"
+echo "   Agent dir: $AGENT_DIR"
+echo "   Source: $SRC_RESOURCES"
+echo ""
+
+if [ "$MODE" = "--status" ] || [ "$MODE" = "status" ]; then
+    echo "📊 Current state:"
+    echo ""
+    
+    check_symlink() {
+        local name="$1"
+        local target="$2"
+        local src="$3"
+        
+        if [ -L "$target" ]; then
+            actual_target=$(readlink "$target")
+            if [ "$actual_target" = "$src" ]; then
+                echo "  ✓ $name → $src"
+            else
+                echo "  ⚠ $name → $actual_target (unexpected)"
+            fi
+        elif [ -d "$target" ] || [ -f "$target" ]; then
+            echo "  ✗ $name is a regular file/dir (not symlinked)"
+        else
+            echo "  - $name does not exist"
+        fi
+    }
+    
+    check_symlink "extensions" "$AGENT_EXTENSIONS" "$EXTENSIONS_SRC"
+    check_symlink "skills" "$AGENT_SKILLS" "$SKILLS_SRC"
+    check_symlink "agents" "$AGENT_AGENTS" "$AGENTS_SRC"
+    check_symlink "AGENTS.md" "$AGENT_AGENTS_MD" "$AGENTS_SRC"
+    check_symlink "GSD-WORKFLOW.md" "$AGENT_WORKFLOW" "$WORKFLOW_SRC"
+    
+    exit 0
+fi
+
+if [ "$MODE" = "--remove" ] || [ "$MODE" = "remove" ]; then
+    echo "🗑️  Removing symlinks..."
+    
+    remove_if_symlink() {
+        local name="$1"
+        local path="$2"
+        
+        if [ -L "$path" ]; then
+            rm "$path"
+            echo "  ✓ Removed symlink: $name"
+        elif [ -e "$path" ]; then
+            echo "  ⚠ Skipped $name (not a symlink, preserve manually if needed)"
+        fi
+    }
+    
+    remove_if_symlink "extensions" "$AGENT_EXTENSIONS"
+    remove_if_symlink "skills" "$AGENT_SKILLS"
+    remove_if_symlink "agents" "$AGENT_AGENTS"
+    remove_if_symlink "AGENTS.md" "$AGENT_AGENTS_MD"
+    remove_if_symlink "GSD-WORKFLOW.md" "$AGENT_WORKFLOW"
+    
+    echo ""
+    echo "💡 To restore copies, run: npm run pi:install-global"
+    exit 0
+fi
+
+# Default: create symlinks
+echo "🔗 Creating symlinks..."
+
+# Ensure agent directory exists
+mkdir -p "$AGENT_DIR"
+
+# Files to PRESERVE (do NOT symlink or backup)
+PRESERVE_FILES=("auth.json" "models.json" "settings.json" "managed-resources.json")
+
+# Check and warn about files that will be preserved
+for file in "${PRESERVE_FILES[@]}"; do
+    if [ -f "$AGENT_DIR/$file" ]; then
+        echo "  📌 Preserving: $file (not symlinked)"
+    fi
+done
+echo ""
+
+create_symlink() {
+    local name="$1"
+    local target="$2"
+    local src="$3"
+    
+    # Remove existing symlink or directory
+    if [ -L "$target" ]; then
+        rm "$target"
+    elif [ -d "$target" ] || [ -f "$target" ]; then
+        # Backup if it's a real directory/file
+        mv "$target" "${target}.backup-$(date +%Y%m%d-%H%M%S)" 2>/dev/null || true
+    fi
+    
+    # Create symlink
+    ln -s "$src" "$target"
+    echo "  ✓ $name → $src"
+}
+
+# Create symlinks
+create_symlink "extensions" "$AGENT_EXTENSIONS" "$EXTENSIONS_SRC"
+create_symlink "skills" "$AGENT_SKILLS" "$SKILLS_SRC"
+create_symlink "agents" "$AGENT_AGENTS" "$AGENTS_SRC"
+
+# AGENTS.md is a file in the agents directory, symlink to the directory instead
+# But we also need AGENTS.md specifically, so symlink to the file
+create_symlink "AGENTS.md" "$AGENT_AGENTS_MD" "$AGENTS_SRC/researcher.md" 2>/dev/null || \
+    create_symlink "AGENTS.md" "$AGENT_AGENTS_MD" "$AGENTS_SRC"
+
+# GSD-WORKFLOW.md goes to ~/.gsd/ not ~/.gsd/agent/
+mkdir -p "$HOME/.gsd"
+create_symlink "GSD-WORKFLOW.md" "$AGENT_WORKFLOW" "$WORKFLOW_SRC"
+
+echo ""
+echo "✅ Symlinks created!"
+echo ""
+echo "📝 Now changes to:"
+echo "   • src/resources/extensions/*"
+echo "   • src/resources/skills/*"
+echo "   • src/resources/agents/*"
+echo "   • src/resources/GSD-WORKFLOW.md"
+echo ""
+echo "  Will be reflected immediately in ~/.gsd/agent/"
+echo ""
+echo "🚀 Run 'node dist/loader.js' to start GSD"
+echo ""
+echo "💡 To remove symlinks: ./scripts/dev-symlink.sh --remove"
+echo "💡 To check status: ./scripts/dev-symlink.sh --status"