detecting-data-anomalies

detecting-data-anomalies is a skill for Claude Code from foryourhealth111-pixel/Vibe-Skills. It costs 51 tokens per session (330 once invoked), scanned A, original, Apache-2.0.

A guide for finding unusual or suspicious records in datasets, such as extreme transactions, sensor spikes, or rare failures. An anomaly is a data point that differs noticeably from the usual pattern.

In plain words
What is it for?
It helps choose and apply methods such as threshold checks, isolation forests, one-class SVM, and local outlier factor, then create a review list of suspicious records.
Why use it?
It helps narrow a large dataset to records that deserve human inspection instead of treating every record equally. It also frames the need to check false alarms and missed anomalies.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit It helps choose and apply methods such as threshold checks, isolation forests, one-class SVM, and local outlier factor, then create a review list of suspicious records.

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Install with agentmods
npx agentmods add skills/foryourhealth111-pixel/vibe-skills/detecting-data-anomalies
About the project

Vibe-Skills is a collection and routing system that helps AI agents discover, select, and coordinate specialized skills for completing tasks. It is intended for agents that need to organize workflows across many installed capabilities. The catalogue entries are skills and an agent belonging to this system.

foryourhealth111-pixel/Vibe-Skills · 3,252 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 foryourhealth111-pixel/Vibe-Skills --skill detecting-data-anomalies
Clone the repo
git clone --depth 1 https://github.com/foryourhealth111-pixel/Vibe-Skills

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 detecting-data-anomalies

README.md
[![agentmods](https://agentmods.dev/badge/skills/foryourhealth111-pixel/vibe-skills/detecting-data-anomalies/github.svg)](https://agentmods.dev/skills/foryourhealth111-pixel/vibe-skills/detecting-data-anomalies)
Your own site
<a href="https://agentmods.dev/skills/foryourhealth111-pixel/vibe-skills/detecting-data-anomalies"><img src="https://agentmods.dev/badge/skills/foryourhealth111-pixel/vibe-skills/detecting-data-anomalies/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 detecting-data-anomalies

Your own site · 80×15
<a href="https://agentmods.dev/skills/foryourhealth111-pixel/vibe-skills/detecting-data-anomalies"><img src="https://agentmods.dev/badge/skills/foryourhealth111-pixel/vibe-skills/detecting-data-anomalies.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 330 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 pass 7 Sept 2026
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 $0.00051 $0.00330
Opus 5 $0.00026 $0.00165
Sonnet 5 $0.00010 $0.00066
Haiku 4.5 $0.00005 $0.00033

Measured 13d ago against content hash f92ba4bb2656, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

detecting-data-anomalies 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 13d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/algorithm_selector.py, scripts/anomaly_visualizer.py, scripts/data_loader.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

bundled/skills/detecting-data-anomalies/SKILL.md · 42 lines

What it actually says

Detecting Data Anomalies

Positioning

Treat this skill as an explicit/manual helper. In governed ML routing, anomaly-detection ownership normally belongs to scikit-learn.

When to Use

Use this skill when:

  • Reviewing outlier transactions, fraud candidates, sensor spikes, or rare failures
  • Comparing isolation forest, one-class SVM, LOF, or threshold-based anomaly workflows
  • Turning suspicious records into a shortlist for human inspection

Not For / Boundaries

  • Null/duplicate/schema/range validation: use exploratory-data-analysis
  • Full model training or end-to-end pipeline ownership: use scikit-learn or ml-pipeline-workflow
  • Publication-grade figure production: use scientific-visualization

Typical Outputs

  • Candidate anomaly-detection methods and thresholds
  • A review checklist for false positives and false negatives
  • Suggested tables or plots for the suspicious subset
  • scikit-learn as the governed routed owner for classical anomaly-detection workflows
  • creating-data-visualizations after anomalies are identified
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. 13d ago First seen · 42 lines · 51 tokens per session scan A f92ba4bb2656

Subscribe to this mod's changes

detecting-data-anomalies is a skill published in the GitHub repository foryourhealth111-pixel/Vibe-Skills (3,252 stars, last pushed 12d ago), licensed Apache-2.0. It adds 51 tokens to every session and 330 once invoked, about $0.0003 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.