LogTail Smart Log Monitor & Analyzer

Monitor log files in real-time. Filter noise, surface errors, summarize patterns, alert on anomalies. Makes logs readable.

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Logs are noisy. LogTail finds the signal.

Usage

const { LogTail } = require('./src/log-tail');
const tail = new LogTail({
  files: ['./logs/app.log', './logs/error.log'],
  filters: {
    ignore: ['DEBUG', 'health_check'],
    highlight: ['ERROR', 'FATAL', 'timeout']
  }
});

tail.watch((entry) => {
  if (entry.severity === 'error') console.log('🔴', entry.message);
});

const summary = await tail.summarize({ period: '1h' });

Summary Output

📋 Log Summary — Last Hour

Total: 12,847 entries
Errors: 23 (0.18%)
Warnings: 156 (1.2%)

Top errors:
  1. "Connection timeout" — 12x (clustered 2:15-2:20 PM)
  2. "Rate limit exceeded" — 8x (spread)
  3. "File not found" — 3x

Pattern: Timeout spike correlates with backup job at 2:15 PM

Features

• Real-time tailing with smart filtering
• Pattern detection — recurring errors, time correlations
• Noise reduction — configurable ignore patterns
• Anomaly detection — "Error rate 3x normal"
• Multi-file — multiple log files simultaneously
• Format agnostic — JSON, plaintext, syslog, custom

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⚠️ Disclaimer

This software is provided "AS IS", without warranty of any kind, express or implied.

USE AT YOUR OWN RISK.

• The author(s) are NOT liable for any damages, losses, or consequences arising from the use or misuse of this software — including but not limited to financial loss, data loss, security breaches, business interruption, or any indirect/consequential damages.
• This software does NOT constitute financial, legal, trading, or professional advice.
• Users are solely responsible for evaluating whether this software is suitable for their use case, environment, and risk tolerance.
• No guarantee is made regarding accuracy, reliability, completeness, or fitness for any particular purpose.
• The author(s) are not responsible for how third parties use, modify, or distribute this software after purchase.

By downloading, installing, or using this software, you acknowledge that you have read this disclaimer and agree to use the software entirely at your own risk.

DATA DISCLAIMER: This software processes and stores data locally on your system. The author(s) are not responsible for data loss, corruption, or unauthorized access resulting from software bugs, system failures, or user error. Always maintain independent backups of important data. This software does not transmit data externally unless explicitly configured by the user.

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Support & Links

🐛 Bug Reports	TheShadowyRose@proton.me
☕ Ko-fi	ko-fi.com/theshadowrose
🛒 Gumroad	shadowyrose.gumroad.com
🐦 Twitter	@TheShadowyRose
🐙 GitHub	github.com/TheShadowRose
🧠 PromptBase	promptbase.com/profile/shadowrose

Built with OpenClaw — thank you for making this possible.

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