---
id: OCX-5
family: RT-OCX
level: extended
profiles: [runtime]
posture: normative-target
added: "1.0"
changed: "1.0"
source: https://flowdrop.io/spec/rules/rt-ocx/ocx-5
specification: FlowDrop Workflow Specification 1.0-draft
licence: CC BY 4.0
---

# OCX-5 — A trigger's condition set is a closed vocabulary

*RT-OCX (Part II) · level: extended · profiles: runtime · added in 1.0*

A connector with its own data to carry has one place to put it, so a reader can tell a declared condition from a connector's private key.

## The rule

> **Normative.** This is the rule.
>
> 1. A trigger's conditions are a closed vocabulary: the condition keys this specification declares, and no others alongside them.
>
> 2. Event-type-specific data a connector needs to carry is written under the designated extension key, whose contents this specification does not constrain.
>
> 3. A connector writing its own keys beside the declared ones is writing an invalid condition set.

---

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.