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Error Detective · dokhacgiakhoa | DecimalAI

devopsby dokhacgiakhoa

Error Detective

dokhacgiakhoa/error-detective

Source dokhacgiakhoa/agent-skills-4-vibe-coding-cli ↗License NOASSERTION

Search logs and codebases for error patterns, stack traces, and anomalies. Correlates errors across systems and identifies root causes. Use PROACTIVELY when debugging issues, analyzing logs, or investigating production errors.

SkillScore77Maintained

Automatic

DevOps & SRE pack

Last verified 8/29/2026

What it changes

Passed 17 of 22 test cases with the skill, and 16 of 22 without it.

Without skill73%

With skill77%

Checks it passed that the model alone missed

Provides a valid PCRE regex pattern capturing named or numbered groups for exception name, method, and line number.

1 fixed16 passed either way5 still failing0 broke

Pass-rate lift: +5 pp
Tokens: +20%
Agent turns: 0%
Response time: +13%

Model gemini-3.6-flashMeasured 8/29/2026v117 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/dokhacgiakhoa-error-detective/SKILL.md https://app.decimal.ai/s/dokhacgiakhoa-error-detective/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add dokhacgiakhoa-error-detective, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/dokhacgiakhoa-error-detective/ and pins it in .decimal/skills.lock

decimalai skills add dokhacgiakhoa-error-detective

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/dokhacgiakhoa-error-detective/SKILL.md https://app.decimal.ai/s/dokhacgiakhoa-error-detective/SKILL.md

Raw file: /s/dokhacgiakhoa-error-detective/SKILL.md ↗ · machine-readable summary at /s/dokhacgiakhoa-error-detective.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

A test case the skill fixed. Same model, same prompt, with and without the skill.

Prompt

During high concurrency, our Java Spring Boot microservice produces multi-line `java.lang.NullPointerException` traces in `/var/log/app/spring-boot.log`. Write a PCRE regex pattern to isolate the root exception class, method name, and line number from these multiline log events.

What was checked, without and with the skill
Checked	Without skill	With skill
Provides a valid PCRE regex pattern capturing named or numbered groups for exception name, method, and line number.	Missed	Passed
Includes sample log text demonstrating matching against the provided regex pattern.	Passed	Passed

case-06 · gemini-3.6-flash · 8/29/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md43 linessingle file

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

Start with error symptoms, work backward to cause
Look for patterns across time windows
Correlate errors with deployments/changes
Check for cascading failures
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

Track record

Benchmark

17 / 22

test cases passed, vs 16 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/10/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

dokhacgiakhoa / agent-skills-4-vibe-coding-cli

.agent/skills/error-detective/SKILL.md

View on GitHub ↗

License NOASSERTIONImported 8/10/2026Version v1

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

error-detectiveSearch logs and codebases for error patterns, stack traces, and anomalies. Correlates errors across systems and identifies root causes.Near-identical description+9 pp pass-rate lift

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