---
id: CFG-16
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-16
specification: FlowDrop Workflow Specification 1.0-draft
licence: CC BY 4.0
---

# CFG-16 — The unified input port is decomposed before resolution

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

A node may take all its inputs as one bundled object on the reserved `input` port. That bundle is unpacked into individual named inputs before any parameter is resolved, so the rest of the chain cannot tell the difference.

## The rule

> **Normative.** This is the rule.
>
> 1. Where the reserved `input` port carries a value, it is decomposed before any parameter is resolved.
>
> 2. Where that value is not an object, nothing is decomposed: the runtime inputs are left unchanged and the raw `input` key survives, so a declared parameter literally named `input` receives the value as it stands.
>
> 3. Otherwise, only keys that name a connectable parameter, an internal parameter, or a declared dynamic input are kept, and the rest are discarded.
>
> 4. A value wired individually to a port then overwrites the same key taken from the bundle.

## Related rules

- Names: CFG-4, CFG-15, CFG-17
- Referenced by: CFG-17

---

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.