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Arcjet · Method

decision.reason

Arcjet sensitive-information detection scans text for entities such as email addresses, names, addresses, and identifiers. In Python with FastAPI, configure detect_sensitive_info and pass request text through sensitive_info_value.

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Syntax

detect_sensitive_info(mode=Mode.LIVE, allow=[...], deny=[...], backend=rampart())

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  • SensitiveInfoEntityType
  • detect_sensitive_info
  • rampart
  • rampart_entities
  • Mode.DRY_RUN
  • decision.reason_v2.type
  • DetectedSpan
  • RampartOptions

Source: Sensitive information reference for Python + FastAPI | Arcjet Docs. Checked 2026-11-03.