---
id: GOV_INPUT_VALIDATION
type: decision
status: accepted
tier: T2
title: input-validation
description: Governance rules for input-validation.
applies_when:
  - "pydantic"
  - "zod"
  - "class-validator"
  - "dto validation"
---

# input-validation (current)

This document records the current governance decision for the input-validation area. It states the recommended approach, the rationale behind it, and how to request an exception.

## Decision

- Adopt the documented pattern for this area.
- Prefer the recommended approach over ad-hoc alternatives.
- Record any deviation in the project decision record.
- Consult this page before related work begins.
