Prompt Router - Smart Mode Selector

About Prompt Router - Smart Mode Selector

Prompt Router automatically detects whether your GitHub Copilot prompt needs Ask, Plan, or Agent mode — and routes it there instantly, saving you tokens and context-window budget with zero extra clicks.

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Why Prompt Router?

Every Copilot chat prompt costs tokens. Agent mode is powerful but expensive — it reads files, runs terminals, and burns through your context window even for simple questions. Prompt Router silently classifies each prompt and steers you toward the cheapest mode that can actually answer it.

Think of it like a smart receptionist: it reads your note and says "this goes to the quick-answer desk, not the full-orchestration team."

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Features

Feature	How to use
Auto-classify any prompt	Press Ctrl+Shift+R (Mac: Cmd+Shift+R), type your prompt, and Copilot opens in the right mode automatically
@smart participant	Type @smart followed by your prompt — see the detected type label + a one-click mode-switch button
@router participant	Type @router for a full score breakdown (Ask / Plan / Agent percentages)
Smart dropdown agent	Select Smart from the chat mode dropdown for token-efficient auto-routing in the conversation itself
Token savings dashboard	Run Prompt Router: Show Token Savings Dashboard from the Command Palette
Learns your patterns	Accepts/dismissals train a lightweight local model that personalises routing over time

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How It Works (Plain English)

1. You type a prompt.
2. Prompt Router runs it through a heuristic classifier (keyword signals) blended 40/60 with a Naive Bayes ML model.
3. Learned pattern boosts from your past corrections are applied on top.
4. The highest-scoring mode wins.
5. VS Code chat opens in that mode with your prompt pre-filled — no copy-paste needed.

The classification runs entirely locally — no network calls, no telemetry.

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Mode Guide

Mode	When to use	Token cost
Ask	Explanations, definitions, debugging concepts, what/why/how questions	~500 tokens
Plan	Architecture, design, step-by-step approach, best practices	~800 tokens
Agent	Write, fix, create, refactor, run terminal commands, file operations	~3000+ tokens

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Quick Start

1. Get a License — one-time purchase, use on up to 3 devices.
2. Install the extension and activate with your license key.
3. Press Ctrl+Shift+R and type any Copilot prompt.
4. Watch it open in the right mode automatically.

Or use @smart in any existing chat session for a type label + one-click switch button.

Buy License — $2.9 / ₹19 · One-time payment · 3 device activations · Instant email delivery

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Commands

Command	Shortcut
Ask Copilot (Auto Mode)	Ctrl+Shift+R
Show Token Savings Dashboard	Command Palette
Clear Learned Patterns	Command Palette

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Settings

Setting	Default	Description
promptRouter.confidenceThreshold	0.45	Minimum confidence before showing a suggestion
promptRouter.autoDismissSeconds	8	Seconds before status bar tip auto-dismisses
promptRouter.enabled	true	Enable or disable the extension entirely

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Requirements

• VS Code ^1.99.0
• GitHub Copilot Chat extension installed and signed in

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Release Notes

0.1.0

• Initial release
• Heuristic + ML hybrid classification
• @smart and @router chat participants
• Ctrl+Shift+R quick-input shortcut
• Token savings dashboard
• Pattern memory (local learning)

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Pricing

One-time purchase — no subscriptions, no recurring fees.

Price	$2.9 / ₹19
Activations	Up to 3 devices
Delivery	Instant license key via email
Payment	Razorpay (India) · PayPal (International)

Buy Now →

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License

MIT