DeepCoder Assistant is a VS Code and Cursor extension that gives real time help inside the editor. It suggests code as you type, explains errors, and answers questions in a small chat panel. Version 1.0.3 adds a smoother chat, better error messages, and theme friendly UI.
The whole path lives in the editor: install, one secure key prompt, then the command palette opens the chat panel.
Goal
Help developers stay in the editor and move faster
Make debugging and learning simpler
Keep setup safe and easy with an API key prompt
Challenges
Build a chat UI that feels native inside a VS Code webview
Handle secrets safely without storing API keys
Deal with rate limits and network errors in a friendly way
Package and publish the .vsix to the Marketplace
Keep the UI readable in dark and light themes
Solution and outcome
Made a lightweight chat panel with code blocks and quick replies
Added real time inline suggestions and a simple Ask box
Used a safe key flow that prompts on use instead of storing locally
Wrote clear error and retry states so users are never stuck
Tied styles to VS Code theme tokens for a consistent look
Shipped version 1.0.3 with 1,311 installs and good user feedback
Version 1.0.3 on the Marketplace, MIT licensed, with the two known issues written down rather than glossed over.
What I learnt
VS Code Extension API, webviews, and message passing
UX for editor tools: keyboard first, low friction, small UI