Works with GitHub Copilot Chat

The Missing Sidebar
for Copilot.

Turn your AI from a slot machine into an architect. Apeiron gives you the steering wheel, forcing Copilot to ask before it acts.

Install for VS Code Watch the Workflow

Seamless Integration With

GitHub Copilot

VS Code

Cursor

Quota Protection

Escape the Retry Spiral.

Without guardrails, you burn premium credits on code you delete. With Apeiron, you squeeze 10x value from a single request.

The Assumption Cycle

Wasteful

You: "Make a login page."

Wrong Stack

AI guesses wrong and writes 200 lines of code you can't use.

1 Credit Burned

You: "No, use React!"

AI: "Apologies. Generating again..."

2 Credits Burned

Result: Negative ROI.

The Value Flywheel

Optimized

You: "Build the core architecture."

Continuous Verification

The AI generates code, but pauses at complexity to verify via sidebar.

Apeiron Sidebar

"Deploying to Vercel. Should I enable Edge Functions?"

Yes, enable.

Session stays open. You get 5 rounds of refinement inside one context window.

> Refactoring... Verified.
> Optimizing... Verified.
> STATUS: SHIP_IT

Total Yield:

1 Credit = 10x Output

See the Guardrail in action

Watch Apeiron catch an assumption before it becomes an error.

Copilot Preview

Try the Demo Prompt

The #askUser Trigger

"I want to squeeze every drop of value out of this premium request. Goal: Build a Cinematic 3D Drone Showcase. Workflow: 1. Start coding the core architecture immediately. 2. Before finalizing ANY complex logic (physics, shaders, responsive layout), use #askUser to verify my preference. 3. If I ask for changes via the sidebar, refactor the code immediately and ask for verification again. 4. Keep this "Code -> Verify -> Refactor" loop running. CRITICAL: Do not mark the task as complete. Keep the session open for infinite refinements until I reply to #askUser with: "SHIP_IT"."

Key Features

The Architecture of Certainty

Apeiron is the native bridge between Copilot and your intentions.

Smart Pausing
Agent automatically waits for decisions on ambiguous tech paths.
Premium Conservation
Stop wasting GPT-4o tokens on assumption-based code.
Native Sidebar
Keep decisions separate from your creative conversation.

Extension Sidebar

Select the Project Vibe:

Cyberpunk

Minimalist

Ready to stop guessing?

Install Apeiron on VS Code

The Missing Sidebar for Copilot.