# GA4-Anomaly-Detector

> GA4-Anomaly-Detector — hugonissar-ga4-anomaly-detector. Use this tool when you need to identify unusual patterns in Google Analytics 4 data exported to BigQuery. It solves problems of manual data analysis and provides actionable insights through automated statistical anomaly detection, generating narrated reports via a large language model. Inputting GA4 BigQuery export data, it outputs a report highlighting anomalies, making it ideal for data-driven decision making and monitoring website performance.

Canonical page: https://skillsregistry.net/skills/hugonissar-ga4-anomaly-detector  
JSON: https://api.skillsregistry.net/v1/skills/hugonissar-ga4-anomaly-detector

## Description

Statistical anomaly detection over GA4 BigQuery exports, narrated by an LLM. The pipeline does the math; the LLM only writes the report.

## Trust

- **Trust score (0–1):** 0.64
- **Verification tier:** scanned
- **Last scanned:** 2026-09-01

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **Category:** database
- **Updated:** 2026-09-21

## Source

- **Source listing:** [GitHub](https://github.com/hugonissar/GA4-Anomaly-Detector)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "hugonissar-ga4-anomaly-detector"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/hugonissar-ga4-anomaly-detector` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/hugonissar-ga4-anomaly-detector/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt