CatchMe

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CatchMe: Make Your AI Agents Truly Personal

Capture Your Entire Digital Footprint: Lightweight & Vectorless & Powerful.

Features  ·  How It Works  ·  LLM Config  ·  Get Started  ·  Cost  ·  Community

「 Just do your thing. CatchMe captures everything else — stored locally to ensure privacy and security. 」

🦞 Makes Your Agents Truly Personal. CatchMe ships as an agent-compatible skill for CLI agents (OpenClaw, NanoBot, Claude, Cursor, etc.). Run CatchMe independently. Your agents query memories via CLI commands only.

🎯 Enrich Your Personal Digital Context

💻 Personal Coding Assistant "What was I coding in Claude Code today?" • Code session replay • Recall your edited files • Trace what you typed

🔍 Personal Deep Research "What was I reading about AI yesterday?" • Web/PDF viewed • Search queries typed • Reading info tracked

📁 Personal Files Manager "Which files did I change today?" • File changes tracked • Docs accessed • Edits reviewed

🧩 Digital Life Overview "How did I spend my afternoon?" • App usage tracked • Workflows replayed • Activities recalled

✨ Key Features

📹 Always-On Event Capture

• Event-Driven Recording: No timer or delays - catch mouse actions with crosshair annotation instantly.
• Comprehensive Context: Five recorders track windows, keyboard, clipboard, notifications, and files around mouse actions.

🌲 Intelligent Memory Hierarchy

• Auto-Organization: Raw streams structure into five tiers: Day → Session → App → Location → Action.
• Smart Summaries: LLM summaries at each level, transforming logs into searchable knowledge trees.

🔍 Tree-Based Retrieval

• No Vector Complexity: Skip embeddings and VDBs — our system uses tree-based reasoning for navigation.
• Top-Down Search: LLM reads summaries, selects relevant branches, and drills down to evidence.

🤖 Zero-Config Agent Integration

• One-File Setup: Drop a single skill file into any AI agent for instant integration.
• Immediate Access: CLI-based screen history queries with zero configuration required.

🪶 Ultralight & Privacy-First

• Minimal Footprint: ~0.2GB runtime RAM with efficient SQLite + FTS5 storage.
• Local & Offline: All data stays on your machine with full offline mode via Ollama/vLLM/LM Studio.

🖥️ Rich Web Interface

• Visual Exploration: Interactive timelines, memory tree navigation, and real-time system monitoring.
• Natural Conversation: Chat with your complete digital footprint using natural language.

💡 CatchMe Architecture

CatchMe transforms raw digital activity into structured, searchable memory through three concurrent stages:

🔄 Record → Organize → Reason: Turn digital chaos into queryable memory

Capture. Six background recorders silently track your activity. They monitor window focus, keystrokes, mouse movement, screenshots, clipboard, and notifications.

Index. Raw events auto-organize into a Hierarchical Activity Tree: Day → Session → App → Location → Action. Each node gets LLM-generated summaries. Fast, meaningful recall without vector embeddings.

Retrieve. You ask a question. The LLM traverses your memory tree top-down. It selects relevant nodes and inspects raw data like screenshots or keystrokes. Then synthesizes a precise answer.

🌲 Hierarchical Activity Tree

The Activity Tree is CatchMe’s memory core. It provides structured, multi-level views of your digital life. Browse high-level summaries or dive into granular details.

🔍 Intelligent Tree Retrieval

CatchMe skips traditional vector search. Instead, the LLM directly navigates your Activity Tree. This enables complex, cross-day reasoning. Precise evidence gathering from raw activity history.

📖 Learn More: Detailed design insights and technical deep-dive available in our blog.

🧠 LLM Configuration

❗️ Data Privacy Notice

• 100% Local Storage: All raw data (screenshots, keystrokes, activity trees) stays in ~/data/ and never leaves your machine.

• Offline-First Options: Local LLMs (Ollama, vLLM, LM Studio) enable fully offline operation without any cloud dependency.

• ⚠️Cloud Provider Caution: If used, cloud APIs will be used to summarize your daily activities. Untrusted endpoints may expose private data — review data policies of your provider carefully.

📋 Requirements

• Multimodal support: Your model should be able to handle text + images.

• Context window: Make sure the context window of your model exceed max_tokens limits in config.json.

• Cost control: For forced cost control, set limits via llm.max_calls or increase filter.mouse_cluster_gap to reduce summarization frequency.

CatchMe requires an LLM for background summarization and intelligent retrieval. Use catchme init (in Get Started)for guided setup or follow the manual configuration steps below.

For cloud API services:

{
    "llm": {
        "provider": "openrouter",
        "api_key": "sk-or-...",
        "api_url": null,
        "model": "google/gemini-3-flash-preview"
    }
}

For local/offline operation:

{
    "llm": {
        "provider": "ollama",
        "api_key": null,
        "api_url": null,
        "model": "gemma3:4b"
    }
}

🚀 Get Started

📦 Install

git clone https://github.com/HKUDS/catchme.git && cd catchme

conda create -n catchme python=3.11 -y && conda activate catchme

pip install -e .

macOS — grant Accessibility, Input Monitoring, Screen Recording in System Settings → Privacy & Security Windows — run as Administrator for global input monitoring Linux — X11 only. Install xdotool and xprop for window tracking; add pip install -e ".[linux]" for mouse capture (builds evdev, which needs kernel headers). Keyboard capture is not implemented on Linux.

⚡ Init

catchme init                  # interactive setup: provider, API key, llm model

🔥 Run

catchme awake                 # start recording
catchme web                   # visualize and chat

# or through cli
catchme ask -- "What am I doing today?"

🦞 CatchMe Makes Your Agents Truly Personal

CatchMe ships as an agent-compatible skill for CLI agents (OpenClaw, NanoBot, Claude, Cursor, etc.).

🪶 Agent Integration:

Option A — Light Skill (you run CatchMe; agents query memories via CLI commands only):

# 1. Start CatchMe yourself
catchme awake

# 2. Give the light skill to your agent
cp CATCHME-light.md ~/.cursor/skills/catchme/SKILL.md

Option B — Full Skill (agent manages the full CatchMe lifecycle autonomously):

cp CATCHME-full.md ~/.cursor/skills/catchme/SKILL.md

🔌 MCP Server

Expose your activity tree to any MCP host — Claude Desktop, Cursor, Hermes, etc. — over stdio:

pip install 'catchme[mcp]'   # MCP support ships as an optional extra
catchme mcp                  # start the stdio server

Register it with your host. For Claude Desktop, add to claude_desktop_config.json:

{
  "mcpServers": {
    "catchme": {
      "command": "catchme",
      "args": ["mcp"]
    }
  }
}

Your agent then gets four tools:

Keep catchme awake running — the MCP server reads the activity tree it builds.

🔧 Integrate into your current workflow

from catchme import CatchMe
from catchme.pipelines.retrieve import retrieve

# 1. One-line search — fast keyword lookup over all recorded activity
with CatchMe() as mem:
    for e in mem.search("meeting notes"):
        print(e.timestamp, e.data)

# 2. LLM-powered retrieval — natural language Q&A over your screen history
for step in retrieve("What was I working on this morning?"):
    if step["type"] == "answer":
        print(step["content"])

📊 Cost & Efficiency

Benchmarked with 2 hours of intensive, continuous computer use on MacBook Air M4.

🚀 Roadmap

CatchMe evolves with community input. Upcoming features include:

Multi-Device Recording. Capture and unify GUI activities across all your machines via LAN synchronization.

Dynamic Clustering. Adaptive clustering algorithms that better reflect your actual work patterns and flows, reducing unnecessary costs.

Enhanced Data Utilization. Unlock deeper insights from screenshots and metadata beyond current processing pipelines.

🌟 Star this repo to follow our future updates — your interest keeps us motivated!

We welcome contributions of any kind - whether it’s a comment, a bug report, a feature idea, or a pull request. See CONTRIBUTING.md to get started.

🤝 Community

Acknowledgments !

CatchMe is inspired by these excellent open-source projects:

🏛️ Ecosystem

CatchMe is part of the HKUDS agent ecosystem — building the infrastructure layer for personal AI agents:

Thanks for visiting ✨ CatchMe