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Sage Browser Extension

Quick AI access from any browser tab. Switch between Claude, ChatGPT, Gemini, and OpenCode without leaving your workflow.

What is Sage?

Sage is a Chrome extension that adds an AI sidepanel to your browser. Instead of opening new tabs or switching windows, you get instant access to AI assistants right beside your work.

Key Features:

  • Multi-AI Sidebar - Claude, ChatGPT, Gemini, and more in one place
  • OpenChamber Integration - OpenCode's web GUI in your browser
  • Seer Signals Queries - Ask questions about client data directly (coming soon)
  • Browser Enhancements - Page context, quick exports, and more

Why Use Sage?

Without Sage With Sage
Open new tab for Claude Click sidebar icon
Copy/paste page content One-click page context
Switch between AI tabs Toggle AI platforms instantly
Leave your workflow AI stays beside your work

Installation

Step 1: Get the Extension

# Clone the repo (Seer team members)
git clone https://github.com/seerinteractive/sage.git
cd sage/packages/extension

# Build the extension
bun install
bun run build

Step 2: Load in Chrome

  1. Open chrome://extensions
  2. Enable Developer mode (top right toggle)
  3. Click Load unpacked
  4. Select: packages/extension/.output/chrome-mv3/

Step 3: Pin the Extension

  1. Click the puzzle piece icon in Chrome toolbar
  2. Find "Sage"
  3. Click the pin icon

Using Sage

Opening the Sidebar

  • Click the Sage icon in your toolbar, OR
  • Keyboard shortcut: Ctrl+Shift+S (customizable)

Switching AI Platforms

  1. Open the sidebar
  2. Click the platform selector at the top
  3. Choose: Claude, ChatGPT, Gemini, OpenCode, etc.

Page Context (Coming Soon)

  1. Navigate to any webpage
  2. Open Sage sidebar
  3. Click "Add page context"
  4. The AI now has access to the page content

Seer Signals Integration (Coming Soon)

Query client data directly from the sidebar:

  • "What was Client X's organic traffic last month?"
  • "Show me top performing pages for Client Y"
  • "Compare Q4 vs Q3 revenue for Client Z"

Configuration

Adding/Removing AI Platforms

  1. Click the gear icon in the sidebar
  2. Go to "Platforms"
  3. Toggle platforms on/off
  4. Drag to reorder

OpenCode Connection

For local OpenCode:

# Start OpenCode server
opencode serve --port 4096

Sage auto-detects when OpenCode is running.

For remote OpenCode (Tailscale, etc.):

  1. Click gear icon
  2. Go to "OpenCode"
  3. Enter remote URL

Troubleshooting

  • Check extension is enabled in chrome://extensions
  • Try reloading the extension
  • Clear extension storage and reload

AI platform not loading

  • Check your network connection
  • Some platforms require login in the main browser first
  • Try opening the platform in a regular tab, then return to sidebar

OpenCode not connecting

  • Verify OpenCode is running: curl http://localhost:4096/health
  • Check the port matches your configuration
  • For remote: verify URL is accessible

Team Resources

  • Source code: ~/github/sage/packages/extension/
  • Lab status: See Skill Map > Innovation Lab > Sage
  • Questions: #seer-agents Slack channel

Sage is part of the Seer Agent Engine (SAGE) initiative. Currently in testing phase.