What is TabzChrome CLAUDE.md?

Project instructions for TabzChrome, a Chrome extension that provides browser-based bash terminals in a sidebar, with a backend connection for terminal sessions. It describes the React, TypeScript, WebSocket, and xterm.js parts of the project.

Developing the browser terminal, side-panel interface, terminal profiles, WebSocket communication, backend modules, and browser-control features.

It helps an agent understand the extension’s layout, backend, ports, terminal behavior, and development rules before making changes.

How GGPrompts/TabzChrome configures Claude Code

Reuse

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.

Copy the file

curl -O https://raw.githubusercontent.com/GGPrompts/TabzChrome/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/GGPrompts/TabzChrome

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/ggprompts/tabzchrome/claude-md/github.svg)](https://agentmods.dev/instructions/ggprompts/tabzchrome/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/ggprompts/tabzchrome/claude-md"><img src="https://agentmods.dev/badge/instructions/ggprompts/tabzchrome/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/ggprompts/tabzchrome/claude-md"><img src="https://agentmods.dev/badge/instructions/ggprompts/tabzchrome/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,124 This file is loaded in full into every session.

When invoked 2,124 The same file — it is already loaded in full.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.02124	$0.02124
Opus 5.5	$0.00850	$0.00850
Sonnet 5.5	$0.00425	$0.00425
Haiku 4.5	$0.00212	$0.00212

Measured 2mo ago against content hash a480ba3ae678, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

TabzChrome CLAUDE.md 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 2mo 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 \

CLAUDE.md · 229 lines

How it starts

The opening of the file, as written. The whole thing — 229 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md - TabzChrome

Overview

A Windows Terminal-style Chrome extension for managing bash terminals in your browser sidebar. Built with React, TypeScript, and xterm.js.


Architecture	Chrome Extension (Side Panel) + WebSocket backend
Philosophy	Windows Terminal simplicity - bash with profiles, smart directory inheritance
Port	Backend on `localhost:8129`

Architecture

extension/                          backend/
├── sidepanel/sidepanel.tsx         ├── server.js (Express + WebSocket)
├── components/                     ├── modules/
│   ├── Terminal.tsx                │   ├── pty-handler.js
│   └── settings/                   │   ├── terminal-registry.js
├── hooks/                          │   └── tmux-session-manager.js
│   ├── useTerminalSessions.ts      └── routes/
│   ├── useProfiles.ts                  ├── api.js
│   └── useClaudeStatus.ts              └── browser.js (MCP)
├── background/
│   ├── index.ts                    tabz-mcp-server/src/
│   ├── websocket.ts                ├── index.ts (MCP server entry)
│   ├── messageHandlers.ts          └── tools/ (MCP tool definitions)
│   ├── browserMcp/
│   │   ├── tabs.ts
│   │   ├── screenshots.ts
│   │   └── ...
│   └── ...
├── dashboard/
│   ├── App.tsx                     .claude/
│   ├── sections/                   ├── skills/        (project skills)
│   │   ├── SettingsProfiles.tsx     │   ├── tabz-browser/
│   │   ├── Files.tsx               │   ├── tabz-terminals/
│   │   ├── Terminals.tsx           │   ├── tabz-development/
│   │   └── ...                     │   └── tabz-integration/
│   └── contexts/                   ├── agents/
├── 3d/FocusScene.tsx               │   └── tabz-expert.md
└── shared/messaging.ts             └── commands/

Key patterns:

Terminal IDs: ctt-{profile}-{shortId} prefix for Chrome extension terminals (shortId is 8 hex chars)
State: Chrome storage (UI) + tmux (process persistence)
Communication: WebSocket for terminal I/O, Chrome messages for extension
MCP Tools: 85 tabz_* tools available via project-scoped .mcp.json

Read the full file on GitHub · 229 lines

Changes

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.

2mo ago First seen · 229 lines · 2,124 tokens per session scan A a480ba3ae678

Subscribe to this mod's changes

TabzChrome CLAUDE.md is an instructions file published in the GitHub repository GGPrompts/TabzChrome (149 stars, last pushed 1mo ago), licensed MIT. It adds 2,124 tokens to every session, about $0.0085 per session on Opus 5.5. 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.

TabzChrome CLAUDE.md next to 6 instructions from other repositories
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TabzChrome: Instructions file for Claude Code