# DiagnosticSource (/docs/api/type-aliases/DiagnosticSource)



```ts
type DiagnosticSource = "yaml" | "actio" | "schema" | "actionlint";
```

Defined in: [packages/core/src/diagnostics.ts:16](https://github.com/austenstone/actio/blob/2b01e694a0f76521d8c073f3c6a2e48917d2c9d9/packages/core/src/diagnostics.ts#L16)

Where a diagnostic originated.


## Sitemap

Browse the full documentation: [Markdown sitemap](https://austenstone.github.io/actio/sitemap.md) · [XML sitemap](https://austenstone.github.io/actio/sitemap.xml)