Herd your tabs. Never lose context again.
An open-source tab organizer that automatically groups your browser tabs by activity. Install the extension and forget about it — or connect it to your AI agent for context-aware organization.
You open tabs for a meeting, a code review, a doc, a Jira ticket, Stack Overflow... and suddenly you have 47 tabs and no idea which ones belong together or why you opened them.
herd groups your tabs automatically — by Code Review, Documentation, Incidents, Design, etc. Tell your AI agent "focus on auth migration" and related tabs get highlighted.
📂 Tab Groups:
[yellow] 🎯 Current Focus (5 tabs)
• PR #4421 - Migrate auth to MSAL
• Auth migration design doc
• Sprint Review Notes
[green] Code Review (3 tabs)
[red] Incidents (6 tabs)
[purple] Documentation (2 tabs)
[cyan] Dev Tools (2 tabs)
- Open
edge://extensionsorchrome://extensions - Enable Developer mode
- Click Load unpacked → select the
extension/folder - Done. Your tabs are now grouped automatically every hour.
- Click the herd icon → tweak focus topics, trigger organize
- Right-click any tab → "Herd: Add tab to category" → pick a group
- Extension settings → manage all rules, colors, schedule
cd ~/source/herd && npm install
node service/index.js # Starts MCP + HTTP serverAdd to your MCP config (Copilot CLI, Claude, etc.):
{
"mcpServers": {
"herd": {
"command": "node",
"args": ["/path/to/herd/service/index.js"]
}
}
}Now say: "organize my tabs, focus on the auth migration"
| Feature | How |
|---|---|
| Auto-group tabs by activity | Extension runs on timer (15m–2h) |
| Right-click → assign to category | Context menu on any tab |
| Custom rules (URL patterns) | Extension settings page |
| AI-powered focus | MCP tool: herd_set_focus |
| Natural language control | Via any MCP-compatible AI agent |
| Export/import rules | Share your config with teammates |
| Per-window grouping | Never moves tabs across windows |
┌──────────────────┐ ┌─────────────────────┐ ┌──────────────────┐
│ Browser Extension │◄────│ Local Service │◄────│ AI Agent │
│ (groups tabs) │poll │ (Node.js) │MCP │ (Copilot/Claude) │
│ │────►│ HTTP :9922 + stdio │────►│ │
└──────────────────┘ └─────────────────────┘ └──────────────────┘
- Extension — standalone, works without the service. Handles all tab manipulation.
- Service — bridges AI agents to the extension. Exposes MCP tools + HTTP API.
- AI Agent — interprets natural language, queries work context, calls MCP tools.
| Tool | Description |
|---|---|
herd_organize |
Organize tabs into groups (optional: set focus topics) |
herd_list_tabs |
List all tabs with classification |
herd_set_focus |
Set focus keywords (matching tabs → "Current Focus") |
herd_add_rule |
Add URL pattern to a category |
herd_remove_rule |
Remove a pattern or whole category |
herd_get_rules |
Get current classification rules |
herd_status |
Extension status, last run, schedule |
| Category | Matches | Color |
|---|---|---|
| Code Review | GitHub PRs, ADO PRs, GitLab MRs | 🟢 green |
| Work Items | ADO boards, Jira, Linear | 🔵 blue |
| Incidents | ICM, PagerDuty, ServiceNow | 🔴 red |
| Design | Figma, Canva, Miro | 🩷 pink |
| Documentation | wikis, docs.*, Notion, Loop | 🟣 purple |
| AI & Copilot | M365 Copilot, ChatGPT, Claude | 🟠 orange |
| Outlook, Gmail | 🟡 yellow | |
| Meetings & Chat | Teams, Zoom, Slack | 🔴 red |
| Dev Tools | localhost, Codespaces, vscode.dev | 🔵 cyan |
All configuration happens through the extension UI:
- Popup → quick organize, set focus, toggle auto
- Options page → full rule management (add/edit/delete, colors, schedule)
- Right-click menu → instantly assign any tab to a category
Rules are stored in the browser and sync with your profile.
PRs welcome! Ideas:
- Firefox support
- Publish to Edge/Chrome extension stores
- Native messaging (replace HTTP polling with direct pipe)
- Tab activity tracking (time-based staleness detection)
- WorkIQ integration module (auto-fetch focus from M365)
- Team-shared rule sets
MIT
