# End Nodes and Workflow Outputs — OpenAI Agent Builder Workflows

Source: https://www.skillbyai.com/en/openai-agent-builder/b-end

> Every path should finish with a defined result.

## One contract for every path

An **end node** finishes a run and returns its **output**. Whatever path the run took (answered, rejected, escalated, blocked by a guardrail), the caller should get a **predictable shape**: for example a reply text plus a status field. Without this, the app embedding the workflow must guess what happened. Design the output contract first, make every branch end in it, and include enough detail (status, reason, IDs) for your app and logs.

## An output contract for all paths

The same fields whichever branch ran.

```text
{
  "status": "answered" | "rejected" | "escalated" | "blocked",
  "reply":  "text shown to the user",
  "reason": "short machine-readable reason, e.g. approval_rejected",
  "ticket_id": "optional, when escalated"
}
```

## Test each end

Write one preview test per terminal path, including the blocked and rejected ones.

**Quiz:** Why should every branch return the same output shape?

- [x] So the calling app can handle results predictably
- [ ] To make runs slower
- [ ] Because branches cannot differ
- [ ] To hide errors

*Answer:* So the calling app can handle results predictably. One contract, many paths.