// tool reference · Monitoring & Detection
Sigma Rule Builder Free
Build a valid Sigma detection rule from fields and values.
What it does
Builds a syntactically valid Sigma rule from a field, value and level — the deterministic companion to the AI Detection-Engineering Studio.
When to use it
- You know exactly what to match and just want correct Sigma syntax.
Inputs
Field names are the actual form parameters, verified against source.
| Field | Type | Required | Notes |
|---|---|---|---|
| title | text | required | Rule title. |
| field | text | required | Log field to match. |
| value | text | required | Value to match. |
| level | select | optional | Severity level. |
What you get back
A valid Sigma rule in YAML.
How it works
Deterministic generation to the Sigma schema. Offline.
Privacy
Nothing is stored.
Standards
Sigma