Protege — your personal AI coding mentor
Get a little sharper every commit. Protege learns your blind spots and grows with you — from your first <h1> to your first system design review.
A mentor that lives inside your IDE. Watches every keystroke, catches every mistake, teaches every level.
Works inside VS Code and Cursor.
One mentor · many hands
Watches everything. Teaches every level. So your hands stay on the keyboard.
Acts in real time
Watches every keystroke silently. The feedback is already waiting the moment you slip — zero context switching.
Identifies bugs and errors
Spots null derefs, race conditions, and injection risks before you hit save. Always explains the why, never just the what.
Proactive
Quietly surfaces cleaner patterns, the built-in you reinvented, and the tech that actually fits your use case.
Acts like a companion
Adapts to your level, remembers your blind spots, learns what you've already mastered. The longer you use it, the better it knows you.
Never stops teaching
From your first line of HTML to senior architecture reviews. Pulls weak-spot drills out of your own code so you never plateau.
Why this matters
The faster you build, the more it costs to fix. Most beginners ship code they don't fully understand — and the technical debt compounds.
| Stat |
Source |
| 70% more bugs in human-written code |
CodeRabbit · 2025 |
| 59% of developers ship code they don't understand |
Clutch · 2025 |
| 41% increase in technical debt across teams |
CMU · 2026 |
| 4× higher maintenance costs by year two |
Codebridge · 2026 |
The learning layer doesn't exist yet. Protege is it.
How it works
| Surface |
What you see |
| Live Review |
Pause while you type → faint underline + hover with senior-engineer feedback. On-device by default (Qwen 7B local). |
| Smart Fix |
One-click bug repairs offered next to detected defects. |
| Teach Me |
Ask in chat, get a 1:1 explanation that builds on what you already know — not a wall of text. |
Predict & Reveal (Cmd+K P) |
Guess what the highlighted code does, then check. The friction is the lesson. |
Learning Mode (Cmd+K L) |
Pick a goal; Protege builds a 3–5 step plan and you write each step yourself. Validator checks your work. |
| AI Block Highlighter |
Auto-inserted regions get a subtle blue wash + "Teach me this block" hover so you don't ship code you don't understand. |
| Misconception Catcher |
Scans for specific wrong mental models (await in .map, JSON.parse+stringify cloning, .sort mutation) and flags them. |
| Notes |
Notion-style scratchpad inside the panel. Paste code, take lesson notes, build a personal reference. |
| Voice Mode |
Local TTS reads explanations while your eyes stay on the code. Optional wake word so you can ask without hands. |
Installation
Search Protege in VS Code Extensions (Cmd+Shift+X) or:
code --install-extension protege-ai.protege
First-run setup
- Click the Protege icon in the Activity Bar.
- Sign in with GitHub — used for identity only, no repo access.
- The on-device model (Qwen 7B, ~4.7 GB) auto-downloads on first Live Tab visit. One-time setup; everything's offline-capable after.
- Open any file → start typing → Protege does the rest.
Privacy
- Stays local: ownership tracking, Live Review on-device scans, voice synthesis (TTS).
- Sent to backend: chat messages and the file content you explicitly ask about.
- Never sent: your typed code (until you ask), file system contents, terminal output.
Keyboard shortcuts
| Shortcut |
Action |
Cmd+Shift+L |
Toggle Protege panel |
Cmd+K S |
Show actions for the current selection |
Cmd+K P |
Predict-and-reveal — guess what code does, then check |
Cmd+K L |
Start a Learning Mode session |
Tab |
Apply a Ghost suggestion |
Esc |
Dismiss the active suggestion |
Daily limits
Protege caps cloud usage per UTC day:
- 100 chat messages
- 25 tool calls
- 25 voice minutes
Resets at 00:00 UTC. The Profile page shows your live usage.
Where knowledge begins
A coding mentor that lives in your editor. Watches every keystroke, catches every mistake, teaches every level.
A mentor that never disappears.
© 2026 Protege Labs, Inc. · Building · Early access · Privacy · Terms
License: MIT