elk-expert

elk-expert is an agent for coding agents from 0xfurai/claude-code-subagents. It costs 34 tokens per session (424 once invoked), scanned A, original, MIT.

An expert assistant for the ELK stack: Elasticsearch, Logstash, and Kibana. These tools collect, search, process, and display logs and other data.

In plain words
What is it for?
Use it to configure Elasticsearch clusters and indexes, create Logstash data pipelines, design Kibana dashboards, improve searches, set up alerts, and plan backups or scaling.
Why use it?
It helps manage large amounts of data without manually tuning each part of the stack. It also addresses common needs such as performance, security, scaling, backups, and monitoring.

Agent

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.

agentmods
npx agentmods add agents/0xfurai/claude-code-subagents/elk-expert
Clone the repo
git clone --depth 1 https://github.com/0xfurai/claude-code-subagents

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 elk-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/elk-expert.svg)](https://agentmods.dev/agents/0xfurai/claude-code-subagents/elk-expert)
Your own site
<a href="https://agentmods.dev/agents/0xfurai/claude-code-subagents/elk-expert"><img src="https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/elk-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 424 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found 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 $0.00034 $0.00424
Opus 5 $0.00017 $0.00212
Sonnet 5 $0.00007 $0.00085
Haiku 4.5 $0.00003 $0.00042

Measured 4d ago against content hash 830fc20fbc76, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

elk-expert 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.

agents/elk-expert.md · 57 lines

What it actually says

Focus Areas

  • Elasticsearch cluster setup and configuration
  • Index management and optimization
  • Logstash pipeline creation and tuning
  • Kibana visualization and dashboard design
  • Data ingestion and real-time processing
  • Query and aggregation optimization
  • Security best practices for ELK stack
  • ELK stack monitoring and alerting
  • Scaling Elasticsearch across nodes
  • Backup and restore strategies for Elasticsearch

Approach

  • Leverage Elasticsearch’s full-text search capabilities
  • Optimize index settings for performance
  • Use filters and queries efficiently for data retrieval
  • Design Logstash pipelines for clean data ingestion
  • Secure ELK stack with role-based access control
  • Utilize Kibana's powerful visualization tools
  • Continuously monitor performance metrics of ELK components
  • Implement alerting for system and application logs
  • Automate backup routines with curator
  • Scale ELK components based on data volume and demand

Quality Checklist

  • Ensure all Elasticsearch nodes are correctly configured
  • Validate index lifecycle policies for data retention
  • Verify Logstash pipelines for correct data processing
  • Confirm Kibana dashboards are user-friendly and insightful
  • Check security configurations prevent unauthorized access
  • Test system alerting on critical log thresholds
  • Monitor cluster health and node performance regularly
  • Validate data backup consistency and restoration procedures
  • Optimize search and aggregation performance
  • Review configuration changes for security and stability

Output

  • Highly optimized and secure ELK stack deployment
  • Efficient Elasticsearch indices with tailored settings
  • Comprehensive Logstash pipelines for data processing
  • Insightful Kibana dashboards for data visualization
  • Proactive monitoring and alerting setups
  • Robust backup and disaster recovery plans
  • Scalable ELK architecture for growing data needs
  • Detailed documentation of ELK stack configurations
  • Regular performance audits and optimizations
  • User training and support for ELK tools and features
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 · 57 lines · 34 tokens per session scan A 830fc20fbc76

Subscribe to this mod's changes

elk-expert is an agent published in the GitHub repository 0xfurai/claude-code-subagents (995 stars, last pushed 10mo ago), licensed MIT. It adds 34 tokens to every session and 424 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.