TabzChrome: Instructions file for Claude Code

CLAUDE.md

TabzChrome CLAUDE.md is an instructions file for Claude Code from GGPrompts/TabzChrome. It costs 2,124 tokens per session, scanned A, original, MIT.

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.

In plain words
What is it for?
Developing the browser terminal, side-panel interface, terminal profiles, WebSocket communication, backend modules, and browser-control features.
Why use it?
It helps an agent understand the extension’s layout, backend, ports, terminal behavior, and development rules before making changes.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions CLAUDE.md.

This is GGPrompts/TabzChrome's own configuration. It tells Claude Code how to work on TabzChrome itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything TabzChrome configures →

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is -d "{\"name\": \"Feature Worker\", \"workingDir\": \"../feature-branch\", \"command\": \"BEADS_WORKING_DIR=$PROJECT_DIR claude\"}".

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.

agentmods badge for TabzChrome CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/ggprompts/tabzchrome/claude-md.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.svg" alt="Measured on agentmods" 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.02124 $0.02124
Opus 5 $0.01062 $0.01062
Sonnet 5 $0.00425 $0.00425
Haiku 4.5 $0.00212 $0.00212

Measured 7d ago against content hash a480ba3ae678, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, 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 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 \
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.

  1. 7d 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 (146 stars, last pushed 13d ago), licensed MIT. It adds 2,124 tokens to every session, about $0.0106 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.

Related

Other instructions, from other repositories

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens

spec-kit AGENTS.md

AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.

github/spec-kit · 7,104 tokens