# Lint a program definition and return the normalized document

POST /v1/programs/lint: Lint a program definition and return the normalized document

```http
POST /v1/programs/lint
```

|  |  |
|---|---|
| Operation id | `lintProgram` |
| Key scope | `read`: every key |
| Section | [Programs](https://docs.kaab.ist/reference/api#programs) |

## Request body

| Field | Type | Required | Description |
|---|---|---|---|
| `definition` | any |  |  |

## Example request

```bash
curl -X POST "https://api.kaab.ist/v1/programs/lint" \
  -H "Authorization: Bearer $KAAB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"definition":{"kaab":"1","steps":[{"goto":"https://shop.example.com/p/1"},{"extract":{"title":"h1"}}]}}'
```

## Responses

### 200

Lint result

| Field | Type | Required | Description |
|---|---|---|---|
| `errors` | object[] | yes |  |
| `errors[].code` | enum (24 values) | yes | one of `"E001"`, `"E002"`, `"E003"`, `"E004"`, `"E005"`, `"E006"`, `"E007"`, `"E008"`, `"E009"`, `"E010"`, `"E011"`, `"E012"`, `"E013"`, `"E014"`, `"W001"`, `"W002"`, `"W003"`, `"W004"`, `"W005"`, `"W006"`, `"W007"`, `"W008"`, `"W009"`, `"W010"` |
| `errors[].path` | string | yes |  |
| `errors[].message` | string | yes |  |
| `warnings` | object[] | yes |  |
| `warnings[].code` | enum (24 values) | yes | one of `"E001"`, `"E002"`, `"E003"`, `"E004"`, `"E005"`, `"E006"`, `"E007"`, `"E008"`, `"E009"`, `"E010"`, `"E011"`, `"E012"`, `"E013"`, `"E014"`, `"W001"`, `"W002"`, `"W003"`, `"W004"`, `"W005"`, `"W006"`, `"W007"`, `"W008"`, `"W009"`, `"W010"` |
| `warnings[].path` | string | yes |  |
| `warnings[].message` | string | yes |  |
| `normalized` | object or null | yes |  |

## Errors

Every error answers with the [error envelope](https://docs.kaab.ist/reference/api/schemas/error-response); its `code` is one of the [error codes](https://docs.kaab.ist/reference/codes#errors).

| Status | When |
|---|---|
| 400 | `request_invalid`: request validation failed |
| 401 | Missing or invalid API key |
| 403 | The key's scope does not cover this operation |
| 429 | Rate limited; see `Retry-After` |
| 500 | `internal`: unexpected server error |