---
url: >-
  https://adk.nht.io/api/@nhtio/adk/batteries/skills/functions/implementsSkillSource.md
---

# Function: implementsSkillSource()

```ts
function implementsSkillSource(value: unknown): value is SkillSource;
```

Defined in: [src/batteries/skills/contracts.ts:93](https://github.com/NHTIO/ADK/blob/v1.20260911.0/src/src/batteries/skills/contracts.ts#L93)

Duck-guard for the synchronous portion of a source contract. `discover()` returns an async
iterable and cannot be duck-checked beyond "is a function", so a value passing this guard may
still violate the protocol. `runSkillSourceConformance`, from
`@nhtio/adk/batteries/skills/conformance`, is the real protocol check.

## Parameters

| Parameter | Type      |
| --------- | --------- |
| `value`   | `unknown` |

## Returns

`value is SkillSource`