---
id: R6.i
family: GR-VAL
level: core
profiles: [storage-api]
posture: normative-target
added: "1.0"
changed: "1.0"
source: https://flowdrop.io/spec/rules/gr-val/r6-i
specification: FlowDrop Workflow Specification 1.0-draft
licence: CC BY 4.0
---

# R6.i — A null config value means unset

*GR-VAL (Part I) · level: core · profiles: storage-api · added in 1.0*

## The rule

> **Normative.** This is the rule.
>
> 1. A config value of `null` means the key is unset.
>
> 2. It satisfies a required key, and no schema constraint is evaluated against it, so a `null` never fails type, `enum`, bounds or `pattern`.

## Related rules

- Names: R6.b
- Referenced by: R6.b

---

Rule identifiers are permanent and are never renumbered. This specification carries
no implementation status: each implementation publishes its own standing against
these rules. Licensed CC BY 4.0.