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.github/workflows/scripts/extract-npx-version.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+# Extract NPX version from package.json
+# Usage: ./extract-npx-version.sh
+
+# Path to package.json
+PACKAGE_JSON="npx/bifrost/package.json"
+
+if [[ ! -f "${PACKAGE_JSON}" ]]; then
+  echo "❌ package.json not found at ${PACKAGE_JSON}"
+  exit 1
+fi
+
+echo "📋 Reading version from ${PACKAGE_JSON}"
+
+# Extract version from package.json using jq
+VERSION=$(jq -r '.version' "${PACKAGE_JSON}")
+
+if [[ -z "${VERSION}" ]] || [[ "${VERSION}" == "null" ]]; then
+  echo "❌ Failed to extract version from package.json"
+  exit 1
+fi
+
+# Validate version format (X.Y.Z or prerelease like X.Y.Z-rc.1)
+if [[ ! "${VERSION}" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z.-]+)?(\+[0-9A-Za-z.-]+)?$ ]]; then
+  echo "❌ Invalid version format '${VERSION}'. Expected format: MAJOR.MINOR.PATCH"
+  exit 1
+fi
+
+echo "📦 Extracted NPX version: ${VERSION}"
+
+# Set outputs (only when running in GitHub Actions)
+if [[ -n "${GITHUB_OUTPUT:-}" ]]; then
+  {
+    echo "version=${VERSION}"
+    echo "full-tag=npx/bifrost/v${VERSION}"
+  } >> "$GITHUB_OUTPUT"
+else
+  echo "::notice::GITHUB_OUTPUT not set; skipping outputs (local run?)"
+fi