Repetition detect¶

Before you begin¶

Follow the steps in the Install with Helm topic to run F5 AI Gateway.

Overview¶

The F5 Repetition Detection processor runs in the AI Gateway processors container. This processor will detect when an input contains significant amounts of repeated content, which can be an indication of a malicious command.

Processor details	Supported
Deterministic	Yes
GPU acceleration support	No
Input stage	Yes
Response stage	Yes
Recommended position in stage	Beginning
Supported language(s)	N/A

Configuration¶

processors:
  - name: repetition-detect
    type: external
    config:
      endpoint: https://aigw-processors-f5.ai-gateway.svc.cluster.local
      namespace: f5
      version: 1
    params:
      reject: false
      max_ratio: 5.0

Parameters¶

Parameters	Description	Type	Required	Defaults	Examples
Common parameters
`max_ratio`	Maximum repetition ratio threshold for detecting overall repeated information in text	number	No	`5.0`	`2.0`, `7.0`

When reject is set to true, this processor will reject the request when repetition is detected, otherwise it will add to the attacks-detected tag.

Tags¶

Tag key	Description	Example values
`attacks-detected`	Added if reject is set to false and prompt injection is detected.	`["repetition"]`

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