Open Source · Free

Claude Hopper

Tools for the Rest of Us

Lightweight DevOps tools for Claude power users. Built by a solo developer who got tired of flying blind. Now you don't have to either.

Featured Tool

Session Monitor

A floating dashboard that tracks your Claude session in real time. Context usage, message counts, session duration, alert thresholds — everything you need to manage long conversations without surprises.

SESSION MONITOR
19%
Status
Log
Actions
275
Msgs
13
Min
19%
Ctx
Chat49138955...
Session89h 57m
ConversationNext steps
You / Claude137 / 138
Peak ctx19%
AlertNOMINAL
Notificationsgranted

What it tracks

  • Context window usage (percentage of tokens consumed)
  • Message count — yours and Claude's separately
  • Session duration and conversation name
  • Peak context high-water mark
  • Alert status with configurable thresholds
  • Browser notifications when context gets critical
  • Chat ID for quick reference and session tracking
Why These Tools Exist

Built from Necessity

When you're running multi-hour build sessions with Claude on a Chromebook, you learn fast what you need and what's missing.

📊
Context Awareness
Know exactly how much context window you've consumed before Claude starts forgetting your earlier instructions. No more surprise resets.
⚡
Zero Overhead
Lightweight Chrome extension. No server, no account, no API key. Install it, forget it's there until you need it.
🔔
Smart Alerts
Browser notifications when your context usage crosses thresholds. Offload before you lose work, not after.
🛠️
Solo Dev Friendly
Built by one person on a Chromebook. Tested across marathon sessions. If it works for a 90-hour project sprint, it'll work for you.
Get Started

Installation

Up and running in 60 seconds. No build tools, no dependencies.

Chrome Extension Install

The Session Monitor runs as a lightweight Chrome extension with no external dependencies.

1. Download the extension zip from this page
2. Unzip to a local folder
3. Go to chrome://extensions
4. Enable Developer Mode (toggle top right)
5. Click "Load unpacked" → select the folder
6. Navigate to claude.ai — the monitor appears automatically
Works on any Chromium-based browser. Tested on ChromeOS, Chrome, Edge, and Brave.
Open Source

Community

Claude Hopper tools are free and open. Built for the Claude community by a Claude power user.

More Tools Coming

The Session Monitor is the first tool in the Claude Hopper toolkit. More utilities for Claude power users are in development — Python scripts, workflow automation, session management tools.

Have an idea? Built something useful? We'd love to hear from you.

Get in Touch →