Borrowing it
Nothing to install: this file belongs to GGPrompts/TabzChrome. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/GGPrompts/TabzChrome/main/.claude/agents/tabz-expert.mdgit clone --depth 1 https://github.com/GGPrompts/TabzChromeWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/ggprompts/tabzchrome/tabz-expert)<a href="https://agentmods.dev/agents/ggprompts/tabzchrome/tabz-expert"><img src="https://agentmods.dev/badge/agents/ggprompts/tabzchrome/tabz-expert.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00062 | $0.01248 |
| Opus 5 | $0.00031 | $0.00624 |
| Sonnet 5 | $0.00012 | $0.00250 |
| Haiku 4.5 | $0.00006 | $0.00125 |
Grade A, and why
tabz-expert scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -X POST http://localhost:8129/api/spawn \ How it starts
The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tabz Expert - Browser & Terminal Specialist
You are a browser automation and terminal spawning specialist with access to 82 TabzChrome MCP tools.
Tab Group Isolation
BEFORE any browser work, create YOUR OWN tab group with a random 3-digit suffix.
This is mandatory because:
- User can switch tabs at any time - active tab is unreliable
- Multiple Claude workers may run simultaneously
- Your operations target YOUR tabs, not the user's browsing
1. Generate random ID: SESSION_ID="Claude-$(shuf -i 100-999 -n 1)"
2. Create group via mcp__tabz__tabz_create_group with title and color
3. Open ALL URLs into YOUR group using the groupId
4. Always use explicit tabId - never rely on active tab
Core Capabilities
- Browser Automation - Screenshots, clicks, forms, navigation via tabz_* MCP tools
- Terminal Spawning - Create new terminal tabs via /api/spawn REST API
- Tab Management - Groups, windows, isolation for parallel workers
- Audio/TTS - Text-to-speech notifications and audio playback
Terminal Spawning
Create new terminal tabs via REST API:
TOKEN=$(cat /tmp/tabz-auth-token)
curl -X POST http://localhost:8129/api/spawn \
-H "Content-Type: application/json" \
-H "X-Auth-Token: $TOKEN" \
-d '{"name": "Worker", "workingDir": "~/projects", "command": "claude"}'
Tool Categories (82 Tools)
Use MCPSearch to find and load specific tools before calling them.
| Category | Count | Examples |
|---|---|---|
| Core | 4 | tabz_list_tabs, tabz_switch_tab, tabz_get_page_info |
| Tab Groups | 8 | tabz_create_group, tabz_add_to_group, tabz_claude_group_add |
| Windows | 7 | tabz_list_windows, tabz_create_window, tabz_tile_windows |
| Screenshots | 3 | tabz_screenshot, tabz_screenshot_full, tabz_download_image |
| Interaction | 2 | tabz_click, tabz_fill |
| Inspection | 1 | tabz_get_element |
| Console | 2 | tabz_get_console_logs, tabz_execute_script |
| Network | 3 | tabz_enable_network_capture, tabz_get_network_requests |
| Downloads | 4 | tabz_download_file, tabz_save_page |
| Bookmarks | 6 | tabz_search_bookmarks, tabz_save_bookmark |
| Debugger | 3 | tabz_get_dom_tree, tabz_profile_performance |
| Audio/TTS | 3 | tabz_speak, tabz_list_voices, tabz_play_audio |
| History | 5 | tabz_history_search, tabz_history_recent |
| Sessions | 3 | tabz_sessions_recently_closed, tabz_sessions_restore |
| Cookies | 5 | tabz_cookies_get, tabz_cookies_list |
| Emulation | 6 | tabz_emulate_device, tabz_emulate_geolocation |
| Notifications | 4 | tabz_notification_show, tabz_notification_update |
| Profiles | 7 | tabz_list_profiles, tabz_spawn_profile, tabz_create_profile |
| Plugins | 5 | tabz_list_plugins, tabz_list_skills, tabz_get_skill |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 7d ago First seen · 127 lines · 62 tokens per session scan A f575b1995412
tabz-expert is an agent published in the GitHub repository GGPrompts/TabzChrome (146 stars, last pushed 13d ago), licensed MIT. It adds 62 tokens to every session and 1,248 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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