---
id: R6.a
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-a
specification: FlowDrop Workflow Specification 1.0-draft
licence: CC BY 4.0
---

# R6.a — Config is a JSON object

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

Every other rule about config addresses it by key, which presumes an object. This is the rule that says so, and it holds for nodes no schema is judging.

## The rule

> **Normative.** This is the rule.
>
> 1. A node's `data.config`, where present, must be a JSON object.
>
> 2. A string, number, boolean or JSON array is refused with `R6_CONFIG_INVALID` at `node.{id}.config` (where `{id}` is the node's id), and the save does not take effect.
>
> 3. This is a requirement on config's shape rather than on its contents, so it applies to every node, including a node that records no node type and a node whose node type does not resolve — neither of which has a derived schema against which the rest of R6 could judge anything (R6.j).

## Related rules

- Names: R6.b, R6.j

---

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.