Log File Analyzer

Version: 1.0 Added: Jan 21, 2026

Description

Analyzes log files to identify errors, patterns, and anomalies. Summarizes issues, tracks error frequency, and helps identify root causes of problems.

Code

Skill Code

Analysis includes:
1. Error frequency by type
2. Time-based patterns
3. User/session correlation
4. Stack trace grouping
5. Performance metrics
6. Anomaly detection

Usage Examples

Examples

User: analyze the error logs from today

Claude: *reads log files*

Error Summary (last 24h):
- DatabaseError: 47 occurrences (spike at 14:00)
- TimeoutError: 23 occurrences
- ValidationError: 156 occurrences

Root cause: Database connection pool exhausted at 14:00, causing cascade of timeouts.

Recommendation: Increase pool size from 10 to 25.

Installation

Add the following to your CLAUDE.md file (project root or ~/.claude/CLAUDE.md for global):

CLAUDE.md

# Log File Analyzer

Analysis includes:
1. Error frequency by type
2. Time-based patterns
3. User/session correlation
4. Stack trace grouping
5. Performance metrics
6. Anomaly detection

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