---
id: CFG-12
family: GR-CFG
level: extended
profiles: [storage-api]
posture: normative-target
added: "1.0"
changed: "1.0"
source: https://flowdrop.io/spec/rules/gr-cfg/cfg-12
specification: FlowDrop Workflow Specification 1.0-draft
licence: CC BY 4.0
---

# CFG-12 — An unrecognised format passes rather than fails

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

## The rule

> **Normative.** This is the rule.
>
> 1. A `format` an implementation recognises is enforced: a value that does not match it fails validation (CFG-10).
>
> 2. A `format` name the implementation does not recognise passes, so a schema written against a richer vocabulary never blocks a node from running.

## Related rules

- Names: CFG-10, CFG-11
- Referenced by: CFG-10

---

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.