elasticsearch-anomaly-detection

elasticsearch-anomaly-detection is a skill for Claude Code, Codex from elastic/agent-skills. It costs 46 tokens per session (2,210 once invoked), scanned A, original, Apache-2.0.

A workflow for creating and managing Elasticsearch machine-learning jobs that find unusual patterns in time-based data. Elasticsearch is a search and data-storage system; these jobs examine data in an index or data stream and report anomalies.

In plain words
What is it for?
Use it to configure anomaly detectors, connect them to Elasticsearch data, and open, start, or stop the jobs through the required command-line tool.
Why use it?
It removes the need to remember the many settings needed to connect a job to the right data and start it correctly. It also checks the job's running state instead of assuming it started.

Skill for Claude CodeCodex ✓ vendor

Written for no agent in particular: nothing here depends on one.

Part of the elastic-elasticsearch plugin — 10 skills shipped together

Good fit Use it to configure anomaly detectors, connect them to Elasticsearch data, and open, start, or stop the jobs through the required command-line tool.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/elastic/agent-skills/elasticsearch-anomaly-detection
About the project

Elastic Agent Skills is a library of instruction packages that teach AI coding agents how to work with Elastic products, including Elasticsearch, Kibana, Elastic Observability, and Elastic Security. Developers use the skills for tasks such as API work, Kibana content management, observability, and security workflows. The catalogue entries are skills and plugins from this library.

elastic/agent-skills · 575 stars · on GitHub

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.

Any agent
npx skills add elastic/agent-skills --skill elasticsearch-anomaly-detection
Clone the repo
git clone --depth 1 https://github.com/elastic/agent-skills

Made for: Claude Code, Codex.

Or install elastic-elasticsearch, the plugin that ships this one along with the rest of its 10 skills.

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 elasticsearch-anomaly-detection

README.md
[![agentmods](https://agentmods.dev/badge/skills/elastic/agent-skills/elasticsearch-anomaly-detection/github.svg)](https://agentmods.dev/skills/elastic/agent-skills/elasticsearch-anomaly-detection)
Your own site
<a href="https://agentmods.dev/skills/elastic/agent-skills/elasticsearch-anomaly-detection"><img src="https://agentmods.dev/badge/skills/elastic/agent-skills/elasticsearch-anomaly-detection/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for elasticsearch-anomaly-detection

Your own site · 80×15
<a href="https://agentmods.dev/skills/elastic/agent-skills/elasticsearch-anomaly-detection"><img src="https://agentmods.dev/badge/skills/elastic/agent-skills/elasticsearch-anomaly-detection.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,210 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 3 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Prompt Injection · line 22
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
  • medium Prompt Injection · line 32
    Subtle instructions detected that may alter agent decision-making or introduce hidden biases.
    Fix: Review content for implicit steering or bias. Ensure instructions are explicit and align with the skill's stated purpose.
  • medium Prompt Injection · line 151
    Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.
    Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
How audits are shown
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 5.1 $0.00046 $0.02210
Opus 5 $0.00023 $0.01105
Sonnet 5 $0.00009 $0.00442
Haiku 4.5 $0.00005 $0.00221

Measured 5d ago against content hash 80f2837f0660, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

elasticsearch-anomaly-detection 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 5d 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

Copies of this mod

1 near-identical copy found in the catalogue:

plugins/elasticsearch/skills/elasticsearch-anomaly-detection/SKILL.md · 164 lines

How it starts

The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Elasticsearch Anomaly Detection

Create, open, and start ML anomaly detection jobs on time-series data. Choose the right count-family detector direction, configure bucket span and time field, wire the datafeed to the correct index, and confirm running state from stats — not from assumptions.

Environment Configuration

This skill executes Elasticsearch operations through the elastic CLI. If the elastic CLI is not installed, tell the user what it is needed for. Do not guess credentials, call the HTTP API directly, or attempt other workarounds.

This skill references operations in HTTP-shorthand form (e.g., GET /, GET /_cat/indices, GET /{index}/_mapping, GET /{index}/_settings/index.mode, POST /_query). The Operations table at the end of this document maps each shorthand to the equivalent elastic CLI command — always use the CLI rather than calling the HTTP API directly.

Prerequisite: ML anomaly detection requires a Platinum-equivalent license on self-managed clusters. Serverless projects include ML. The caller needs manage_ml to create and manage jobs.

Related skill: For interpreting anomaly scores, influencers, and model behavior after a job is running, use elasticsearch-anomaly-detection-explainer — not this skill.

Process

  1. Discover the target index and time field. List candidate indices with GET /_cat/indices (pass a pattern when the user names one). Fetch field types for the chosen index with GET /{index}/_mapping. The decision: confirm the index exists, identify the time field (often @timestamp), and verify document volume is sufficient for baseline learning. Never guess index or field names — they vary across deployments.

  2. Choose detector function and direction. Match the user's intent to a count-family detector in analysis_config.detectors:

    • Spike, surge, unusual increase in event volumehigh_count (or count, which flags both directions but is acceptable when the user cares about spikes). Do not use low_count — it will miss spikes.
    • Drop, outage, absence of events, traffic stopslow_count. Do not use high_count — it will miss drops and silence.
    • Metric deviation (CPU, latency, a numeric field) → mean-family functions (mean, high_mean, low_mean) with field_name set — only when the user asks about a numeric metric, not raw event volume.

Read the full file on GitHub · 164 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 164 lines · 46 tokens per session scan A 80f2837f0660

Subscribe to this mod's changes

elasticsearch-anomaly-detection is a skill published in the GitHub repository elastic/agent-skills (575 stars, last pushed today), licensed Apache-2.0. It adds 46 tokens to every session and 2,210 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 2026-09-05.

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