error-detective

error-detective is an agent for Claude Code from HermeticOrmus/LibreUIUX-Claude-Code. It costs 48 tokens per session (236 once invoked), scanned A, a copy of distributed-debugging-error-detective, MIT.

An analysis assistant for searching logs and code for error messages, stack traces, and unusual patterns, then connecting related failures.

In plain words
What is it for?
Use it to analyze logs, investigate production incidents, compare errors across services, find likely code locations, and suggest ways to prevent repeats.
Why use it?
It helps turn scattered production errors into a timeline and a supported hypothesis about what caused them.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to analyze logs, investigate production incidents, compare errors across services, find likely code locations, and suggest ways to prevent repeats.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/hermeticormus/libreuiux-claude-code/error-detective
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/HermeticOrmus/LibreUIUX-Claude-Code

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for error-detective

README.md
[![agentmods](https://agentmods.dev/badge/agents/hermeticormus/libreuiux-claude-code/error-detective.svg)](https://agentmods.dev/agents/hermeticormus/libreuiux-claude-code/error-detective)
Your own site
<a href="https://agentmods.dev/agents/hermeticormus/libreuiux-claude-code/error-detective"><img src="https://agentmods.dev/badge/agents/hermeticormus/libreuiux-claude-code/error-detective.svg" alt="Measured on agentmods" height="20"></a>
Per session 48 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 236 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 97% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00048 $0.00236
Opus 5 $0.00024 $0.00118
Sonnet 5 $0.00010 $0.00047
Haiku 4.5 $0.00005 $0.00024

Measured 4d ago against content hash 8574cc752979, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

error-detective scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

97% identical to distributed-debugging-error-detective — 7 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/distributed-debugging/agents/error-detective.md · 33 lines

What it actually says

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.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 33 lines · 48 tokens per session scan A 8574cc752979

Subscribe to this mod's changes

error-detective is an agent published in the GitHub repository HermeticOrmus/LibreUIUX-Claude-Code (101 stars, last pushed 3mo ago), licensed MIT. It adds 48 tokens to every session and 236 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to distributed-debugging-error-detective, differing in 7 lines, and is treated as a copy.

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