diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..484ee50
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,58 @@
+# Development files
+js/tests/
+tests/
+examples/
+docs/
+node_modules/
+coverage/
+.nyc_output/
+
+# Source files (we ship dist/ only)
+js/
+src/
+static/
+
+# Build config
+rollup.config.js
+.eslintrc
+.babelrc
+jest.config.js
+tsconfig.json
+
+# Documentation (except README, LICENSE, CHANGELOG)
+CLAUDE.md
+MIGRATION_STATUS.md
+CLEANUP_REPORT.md
+STANDALONE_PLAN.md
+NPM_PUBLICATION_PLAN.md
+TODO.md
+Makefile
+pyproject.toml
+
+# Python stuff
+__pycache__/
+*.py[cod]
+*.egg-info/
+venv/
+.pytest_cache/
+src/testdrive_jsui/
+
+# VCS
+.git/
+.gitignore
+.gitattributes
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Misc
+*.log
+.env
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..9b692fb
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,63 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [1.0.0] - 2025-12-16
+
+### Added
+- Initial public release of TestDrive-JSUI as standalone npm package
+- JavaScript-first markdown editor library
+- Section-based editing with independent section management
+- Interactive UI with compass-positioned control panels
+- Support for edit and view modes
+- Event-driven API for integration
+- Auto-save functionality to localStorage
+- Keyboard shortcuts (Ctrl+S to save, Escape to cancel)
+- LocalStorage integration for content persistence
+- Download markdown as .md file
+- Table of contents generation
+- Debug panel with logging system
+- Status control showing document statistics
+- Comprehensive test suite (68 Jest tests + 15 pytest tests)
+- Full documentation (README, ARCHITECTURE, NPM_PUBLICATION_PLAN)
+
+### Features
+- **Core Library**: Pure JavaScript with marked.js as only peer dependency
+- **Bundled Distribution**: Single-file UMD, ESM, and CJS builds
+- **CSS Included**: Complete styling with GitHub theme
+- **Peer Dependency**: Uses marked.js for markdown parsing
+- **Multiple Installation Methods**: npm, CDN (jsdelivr, unpkg), direct download
+- **Source Maps**: Available for all builds for debugging
+- **Browser Support**: Modern browsers (Chrome 60+, Firefox 60+, Safari 12+, Edge 79+)
+
+### Technical
+- Built with Rollup bundler
+- Transpiled with Babel for broad browser support
+- Minified with Terser (107KB minified)
+- CSS processed with PostCSS, autoprefixer, and cssnano
+- 68 JavaScript tests passing (Jest)
+- 15 Python integration tests passing (pytest)
+
+### Package Details
+- **UMD Build**: 217KB (browser-friendly, default)
+- **Minified**: 107KB (production-ready)
+- **ESM Build**: 199KB (for modern bundlers)
+- **CJS Build**: 199KB (for Node.js)
+- **CSS**: 6KB (minified, all styles inlined)
+
+### Migration Notes
+- Fully migrated from MarkiTect monorepo to standalone capability
+- All 24 original JavaScript files consolidated
+- Single source of truth in `/capabilities/testdrive-jsui/js/`
+- Legacy files cleaned up from main application
+
+## [Unreleased]
+
+Nothing yet.
+
+---
+
+[1.0.0]: https://github.com/markitect/testdrive-jsui/releases/tag/v1.0.0
diff --git a/package.json b/package.json
index 5465a56..3b00097 100644
--- a/package.json
+++ b/package.json
@@ -1,39 +1,68 @@
 {
   "name": "testdrive-jsui",
-  "version": "0.1.0",
-  "description": "JavaScript UI testing framework capability for MarkiTect",
-  "main": "js/index.js",
-  "directories": {
-    "test": "js/tests"
-  },
+  "version": "1.0.0",
+  "description": "JavaScript-first markdown editor library with interactive UI",
+  "type": "module",
+  "main": "dist/testdrive-jsui.cjs.js",
+  "module": "dist/testdrive-jsui.esm.js",
+  "browser": "dist/testdrive-jsui.min.js",
+  "style": "dist/testdrive-jsui.css",
+  "unpkg": "dist/testdrive-jsui.min.js",
+  "jsdelivr": "dist/testdrive-jsui.min.js",
+  "types": "dist/index.d.ts",
+  "files": [
+    "dist/",
+    "README.md",
+    "LICENSE",
+    "CHANGELOG.md"
+  ],
   "scripts": {
+    "build": "rollup -c",
+    "build:watch": "rollup -c -w",
+    "build:prod": "NODE_ENV=production rollup -c",
+    "dev": "npm run build:watch",
     "test": "jest",
     "test:watch": "jest --watch",
     "test:coverage": "jest --coverage",
     "test:verbose": "jest --verbose",
-    "test:specific": "jest --testNamePattern",
-    "lint": "eslint js/**/*.js",
-    "lint:fix": "eslint js/**/*.js --fix",
-    "dev": "npm run test:watch",
-    "build": "echo 'No build step required for this package'",
-    "clean": "rm -rf coverage/ .nyc_output/ node_modules/.cache/"
+    "prepublishOnly": "npm run build:prod && npm test",
+    "lint": "eslint js/**/*.js src/**/*.js",
+    "lint:fix": "eslint js/**/*.js src/**/*.js --fix",
+    "clean": "rm -rf dist/ coverage/ .nyc_output/ node_modules/.cache/",
+    "size": "npm run build:prod && du -h dist/*"
   },
   "repository": {
     "type": "git",
     "url": "https://github.com/markitect/testdrive-jsui.git"
   },
   "keywords": [
+    "markdown",
+    "editor",
     "javascript",
-    "testing",
     "ui",
-    "framework",
-    "markitect",
-    "tdd",
-    "dom",
-    "components"
+    "wysiwyg",
+    "contenteditable",
+    "section-editing",
+    "interactive",
+    "browser",
+    "frontend",
+    "marked",
+    "markdown-editor"
   ],
-  "author": "MarkiTect Project",
+  "author": "MarkiTect Team <team@markitect.dev>",
   "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/markitect/testdrive-jsui/issues"
+  },
+  "homepage": "https://github.com/markitect/testdrive-jsui#readme",
+  "peerDependencies": {
+    "marked": "^11.0.0 || ^12.0.0 || ^13.0.0"
+  },
+  "peerDependenciesMeta": {
+    "marked": {
+      "optional": false
+    }
+  },
   "devDependencies": {
     "@babel/core": "^7.23.0",
     "@babel/preset-env": "^7.23.0",
@@ -57,6 +86,10 @@
   "dependencies": {
     "jsdom": "^23.0.0"
   },
+  "engines": {
+    "node": ">=14.0.0",
+    "npm": ">=6.0.0"
+  },
   "jest": {
     "testEnvironment": "jsdom",
     "testMatch": [