---
id: CFG-2
family: GR-CFG
level: core
profiles: [storage-api]
posture: normative-target
added: "1.0"
changed: "1.0"
source: https://flowdrop.io/spec/rules/gr-cfg/cfg-2
specification: FlowDrop Workflow Specification 1.0-draft
licence: CC BY 4.0
---

# CFG-2 — An unrecorded default-exposure flag means exposed

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

Default exposure carries the opposite polarity to the gate flags, deliberately. A port nobody has decided about is visible, so a parameter added after a node type was last saved does not silently vanish from the canvas.

## The rule

> **Normative.** This is the rule.
>
> 1. A port's default exposure defaults to true.
>
> 2. Where a node type records no `exposedByDefault` value for a port, the port is exposed by default.
>
> 3. This polarity is the opposite of the gate flags (CFG-1) and is deliberate.

## Related rules

- Names: CFG-1, EXPO-5, EXPO-8
- Referenced by: CFG-1, EXPO-2, EXPO-5, EXPO-7, EXPO-8

---

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.