Can I vibe code GitHub Copilot?
AI pair programmer that autocompletes code inside your editor.
Copilot is a model wrapped in excellent editor integration, and you can rent an equally capable model from an API today. A basic ghost-text completion extension that sends the surrounding code to an LLM is a weekend project. What is genuinely hard is the product: sub-second latency on every keystroke, choosing exactly the right context from your open files and repo, filtering suggestions, and doing it without breaking your flow. You can build a personal Copilot that works; making it fast and unobtrusive enough to actually leave on is the part GitHub spent years on.
Build a personal AI autocomplete extension for VS Code. On a pause in typing, send the current file (with the cursor position marked) and a few of my other open files to the Claude API, and render the returned completion as inline ghost text I can accept with Tab. Debounce requests, cancel stale ones, cache recent results, and add config for which file types to enable. Keep latency low by trimming context to what fits a tight token budget, and add a simple inline-edit command that rewrites a selection from an instruction. Note in the README that the model is rented via API — you are building the editor integration and context logic, which is where Copilot's real polish lives.
A VS Code extension that sends your current file and cursor context to a model API and shows the completion as inline ghost text.
- Sub-second completion latency tuned for every keystroke
- Smart multi-file/repo context selection instead of just the current file
- Suggestion filtering, ranking, and the polished accept/reject flow
- Chat, agents, and integration across every editor and IDE
The model is rentable, but the feel — instant, relevant completions that never interrupt you — is the product, and that tuning is a large ongoing effort. For $10 most developers would rather rent that polish than chase latency and context bugs in a homemade extension.
A prompt is the first move, not the whole game. Course 01 teaches you to take a prompt like this one to a shipped, working app — reviewing, correcting, and steering the agent the whole way.
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