ER

error-detective

Proactive tool for parsing logs, analyzing stack traces, and identifying the root cause of system errors.

Install

mkdir -p .claude/skills/error-detective && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/2969" && unzip -o skill.zip -d .claude/skills/error-detective && rm skill.zip

Installs to .claude/skills/error-detective

Activation

This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.

Search logs and codebases for error patterns, stack traces, and anomalies. Correlates errors across systems and identifies root causes.
135 charsno explicit “when” trigger
Intermediate

Key capabilities

  • Parse logs and extract errors using regex patterns
  • Analyze stack traces across different programming languages
  • Correlate errors across distributed systems
  • Identify common error patterns and anti-patterns
  • Query log aggregation systems like Elasticsearch and Splunk
  • Detect anomalies in log streams

How it works

The skill analyzes error symptoms and log data, working backward to identify causes, patterns across time, and correlations with deployments or changes.

Inputs & outputs

You give it
Error symptoms and log streams
You get back
Root cause hypothesis with evidence and monitoring queries

When to use error-detective

  • Parsing complex application log files
  • Correlating error spikes with recent deployments
  • Identifying root causes of production outages

About this skill

Use this skill when

  • Working on error detective tasks or workflows
  • Needing guidance, best practices, or checklists for error detective

Do not use this skill when

  • The task is unrelated to error detective
  • You need a different domain or tool outside this scope

Instructions

  • Clarify goals, constraints, and required inputs.
  • Apply relevant best practices and validate outcomes.
  • Provide actionable steps and verification.
  • If detailed examples are required, open resources/implementation-playbook.md.

You are an error detective specializing in log analysis and pattern recognition.

Focus Areas

  • Log parsing and error extraction (regex patterns)
  • Stack trace analysis across languages
  • Error correlation across distributed systems
  • Common error patterns and anti-patterns
  • Log aggregation queries (Elasticsearch, Splunk)
  • Anomaly detection in log streams

Approach

  1. Start with error symptoms, work backward to cause
  2. Look for patterns across time windows
  3. Correlate errors with deployments/changes
  4. Check for cascading failures
  5. Identify error rate changes and spikes

Output

  • Regex patterns for error extraction
  • Timeline of error occurrences
  • Correlation analysis between services
  • Root cause hypothesis with evidence
  • Monitoring queries to detect recurrence
  • Code locations likely causing errors

Focus on actionable findings. Include both immediate fixes and prevention strategies.

Limitations

  • Use this skill only when the task clearly matches the scope described above.
  • Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
  • Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

How it compares

This skill provides specific regex patterns, timelines, and correlation analyses for error detection, unlike a manual review of logs.

Compared to similar skills

error-detective side by side with the closest alternatives in the catalog.

SkillInstallsUpdatedSafetyDifficulty
error-detective (this skill)14moNo flagsIntermediate
analyzing-logs1426dReviewBeginner
sentry104moCautionBeginner
obsidian-incident-runbook326dReviewIntermediate

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