umd- Markdown & Claude Monitor

myJin

In-app purchases

About this app

umd is a powerful Markdown editor and AI(Claude Code) agent monitor — all in one app.

Write and preview Markdown on the go with syntax highlighting, live preview, and a full formatting toolbar. Plus, monitor your AI
coding agents like Claude Code in real-time from your phone.

MARKDOWN VIEWER

• Render Markdown with full styling — headings, lists, tables, blockquotes, links, and images
• Syntax-highlighted code blocks with language labels and copy button
• Table of Contents auto-generated from headings — tap to jump
• In-document search to find text quickly
• Adjustable font scale (0.6x to 2.0x) for comfortable reading
• Open .md, .txt, .docx, and PDF files
• HTML sanitization for safe viewing

MARKDOWN EDITOR

• Source editing with line numbers and monospace font
• Live preview with 300ms debounce — see changes as you type
• Split view on tablets (editor + preview side by side)
• Formatting toolbar: Bold, Italic, Headings, Links, Images, Code blocks, Lists, Checkboxes, Blockquotes, Dividers
• Undo/Redo with 100-step history
• Auto-save with crash recovery
• Save As with folder picker

FILE MANAGEMENT

• Browse and search Markdown files on your device
• List view and Grid view toggle
• Filter: All, Recent, Favorites
• Swipe to share or delete
• File details: size, last modified, path
• Supports .md, .markdown, .mdx, .txt, .docx, .pdf

AI AGENT MONITORING

• Monitor AI coding agents like Claude Code in real-time
• Watch active sessions — status, uptime, tool calls
• Event feed with filters: Tools, Errors, Notifications, Completions
• See exactly what your agent is doing — file reads, writes, bash commands
• File sync: .md files edited by your agent appear in the app
• Session completion alerts with sound and vibration
• Assign aliases to sessions for easy tracking
• Export session history as TXT, MD, or PDF (Pro)
• One-line installer — just copy, paste, and run
• Supports Bash (macOS/Linux/WSL) and PowerShell (Windows)

CUSTOMIZATION

• Themes: Light, Dark, or follow System
• High contrast mode (WCAG AAA)
• Adjustable font size (80–150%)
• Configure auto-save, line numbers, word wrap, and spell check
• Accessibility: large text, reduced motion, haptic feedback

SUBSCRIPTION PLANS

Free — 1 agent, 1 session, 100 events/day
Personal ($3.99/mo) — 3 agents, 3 sessions, 1,000 events/day, file sync
Pro ($9.99/mo) — 10 agents, 10 sessions, 10,000 events/day, file sync, export

Markdown features are fully free. Subscriptions unlock additional AI monitoring capacity.
Annual plans available at a discount.

PRIVACY & SECURITY

• Monitoring data transmitted through secure, token-based paths
• Only you can read your data (Firebase Auth)
• No personal data is sold or shared
• Inactive data automatically cleaned up after 30 days

REQUIREMENTS

• Android 7.0 or higher
• AI monitoring requires Claude Code with hook support

Built for developers who write in Markdown and work with AI coding assistants.