After being warned about abusing emoji, GPT-5 says:

Summary

This branch introduces hot-loadable annotation UI components to the Magic Markup VS Code extension, along with supporting build tooling and a few related improvements. It operationalizes one of the key ideas from the Codetations paper: making it trivial to add new, dynamic annotation types that live outside the source document but stay synchronized with it.

What this branch does

Hot-loading annotation components

• Adds a user component discovery and build pipeline to the extension:

  • Uses esbuild and chokidar to compile and watch user-authored React components.
  • Adds a new command “Codetations: Compile User Components” that scans <workspace>/codetations_components/, compiles components into an out/ directory, and hot-loads them into the extension’s UI.
  • Keeps an in-memory registry of discovered components (userComponents) for the webview to use.

• Provides a minimal example component (codetations_components/CommentComponent.tsx) showing the pattern for creating custom annotation UIs.

• Updates package.json to include necessary dependencies (esbuild, chokidar, react, react-dom, and type packages).

This enables rapid iteration on new annotation types without touching the extension’s core — a major step toward the workflow described in the Codetations paper.

Safer diff handling

• Hardens AnnotationTracker.ts by guarding against undefined documents and only diffing when documents truly exist and differ. This reduces runtime errors and improves robustness.

Miscellaneous improvements

• Adds a placeholder for diff compression (currently untested) to reduce stored diff sizes.
• Cleans up example directory structure and improves debugging output.

Merge-prep checklist

• Document the new “Codetations: Compile User Components” command and the <workspace>/codetations_components/ convention in the README.
• Add a minimal integration test confirming that a sample component compiles, loads, and renders.
• Ensure esbuild and react dependencies are locked to known-good versions and match between the extension and compiled components.
• Verify that error handling for component compilation and discovery surfaces in the UI (not just console logs).

TL;DR

This branch adds a hot-loadable React component system for Codetations annotation UIs and improves diff robustness — directly advancing the goal of making external annotations trivial to build, integrate, and evolve.