---
id: SCH-5
family: GR-SCHEMA
level: core
profiles: [storage-api, editor-client]
posture: normative-target
added: "1.0"
changed: "1.0"
source: https://flowdrop.io/spec/rules/gr-schema/sch-5
specification: FlowDrop Workflow Specification 1.0-draft
licence: CC BY 4.0
---

# SCH-5 — Reserved config-only parameters always carry a default

*GR-SCHEMA (Part I) · level: core · profiles: storage-api, editor-client · added in 1.0*

## The rule

> **Normative.** This is the rule.
>
> 1. `dynamicInputs`, `dynamicOutputs` and `branches` are reserved config-only parameters and are never input ports.
>
> 2. Where a node type opts one in by marking it `configurable`, it enters the config schema and always gets a config-defaults entry: the node type's default, else the schema's default, else an empty array.
>
> 3. Such an entry is never omitted and never null, unlike an ordinary configurable parameter, whose entry is omitted when its resolved default is null.

## Related rules

- Names: SCH-4
- Referenced by: SCH-4

---

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.