# renderSubsystemFlow

**Kind:** Function

**Source:** [`atloria-monorepo/libs/parser-core/src/techdocs/subsystem-flow.ts`](https://github.com/sherkety/atloria/blob/main/atloria-monorepo/libs/parser-core/src/techdocs/subsystem-flow.ts#L170)

The flow section: an ordered prose account, then the same chain as a diagram.

The diagram sits directly under the heading and before the prose, which is the one structural
habit worth taking from Code Wiki — in all 135 of its sections there is exactly one visual,
always in that position, and that regularity is why its long pages stay navigable.

Returns '' when the graph cannot support an account, which is the right answer far more often
than a generator likes.

## Signature

```ts
function renderSubsystemFlow(flow: SubsystemFlow | undefined): string
```

## Parameters

| Name | Type |
|---|---|
| `flow` | `SubsystemFlow | undefined` |

**Returns:** `string`