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Claude Code Companion

ExtensionDeveloper Tools13 users
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Overview

Essential toolkit for Claude Code developers. CLAUDE.md generator, token counter, prompt templates, and quick reference.

The must-have Chrome extension for Claude Code and AI-assisted development. Claude Code Companion puts everything you need at your fingertips — no more switching tabs, no more forgetting commands, no more guessing token costs. CLAUDE.md Generator Scaffold a professional CLAUDE.md file in seconds. Choose your project type (Next.js, React, Node.js, Python, iOS/Swift, or General) and get a complete, best-practices template with: - Project overview structure - Code style guidelines - Architecture documentation - Testing conventions - Common commands - Deployment instructions - Important notes and pitfalls Every template is based on real-world production patterns used by professional developers. Token Counter Paste any text and instantly see: - Estimated token count (~4 chars/token approximation) - Character, word, and line counts - Visual context window usage bar (200K max) with color-coded zones (green/yellow/red) - Cost estimates for Haiku 3.5, Sonnet 4, and Opus 4 models Know exactly how much context you're using before you send. Prompt Templates Library 8 battle-tested prompt templates with fillable variables: - Code Review — thorough review with severity levels - Bug Fix — systematic root cause analysis - Feature Build — plan and implement new features - Refactoring — improve code without changing behavior - Write Tests — comprehensive test suite generation - Documentation — clear, useful docs with examples - Security Audit — OWASP-informed vulnerability scanning - Performance — bottleneck analysis with complexity estimates Each template has smart placeholders you fill in — then copy the complete prompt with one click. Quick Reference Complete Claude Code cheat sheet always one click away: - All slash commands (/compact, /clear, /init, /review, etc.) - Keyboard shortcuts - CLI flags (--print, --model, --resume, etc.) - Configuration file locations - Tips and tricks for power users Design - Premium dark theme designed for developers - Purple accent (#7c4dff) — distinctively AI-themed - Clean, modern interface at 420x550px - One-click copy for all generated content Privacy First - NO permissions required — fully self-contained - NO data collection — everything runs locally in the popup - NO network requests — works completely offline - NO tracking — zero analytics, zero telemetry ⸻ Built for developers who use Claude Code every day. Free and open. If you find it useful, consider buying the developer a coffee.

Details

  • Version
    1.0.0
  • Updated
    March 20, 2026
  • Offered by
    toine.schoenmaekers
  • Size
    29.47KiB
  • Languages
    English (United States)
  • Developer
    Antonius Jacobus Maria Petronella Schoenmaekers
    Donderwolk 21 De Meern 3454 HZ NL
    Email
    toine.schoenmaekers@gmail.com
    Phone
    +31 6 12224922
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.

Privacy

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The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes
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