> ## Documentation Index
> Fetch the complete documentation index at: https://deepline.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Context.dev: Contextdev List Changes

> List the web page changes detected across all your monitors, filtered by monitor, type, tag, or date. Includes SDK V2 examples, schemas, and cost.

List the web page changes detected across all your monitors, filtered by monitor, type, tag, or date.

> [!NOTE]
>
> Tool ID: `contextdev_list_changes`

## Run this action

Use the TypeScript SDK for one call. Use `ctx.tools.execute(...)` inside a Play for durable calls, scheduled calls, or CSV processing.

```ts theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
import { Deepline } from 'deepline';

const deepline = await Deepline.connect();
const result = await deepline.tools.execute(
  'contextdev_list_changes',
  {
    "monitor_id": "monitor_123",
    "target_type": "page",
    "change_detection_type": "exact"
  },
);

console.log(result.toolResponse.raw);
```

### CLI

```bash theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
deepline tools execute contextdev_list_changes --input '{
  "monitor_id": "monitor_123",
  "target_type": "page",
  "change_detection_type": "exact"
}' --json
```

## Example response

The SDK returns this shape at `result.toolResponse.raw`. The example values illustrate the response.

```json theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
{
  "data": {
    "data": [
      {
        "mode": "web",
        "id": "id_123",
        "monitor_id": "monitor_123",
        "target_type": "page",
        "change_detection_type": "exact",
        "title": "VP of Engineering",
        "summary": "example",
        "detected_at": "2026-01-15T12:00:00Z",
        "url": "https://example.com/resource"
      }
    ],
    "has_more": true,
    "next_cursor": "cursor_123"
  }
}
```

Use `deepline describe contextdev_list_changes --json` for the latest machine-readable contract.

## Input reference

Returns an account-wide feed of detected changes across monitors.

| Name | Type | Required | Default | Details |
| - | - | - | - | - |
| `payload.monitor_id` | `string` | No | — | Filter changes to a single monitor. |
| `payload.target_type` | `"page" \| "sitemap" \| "extract"` | No | — | Filter by target type. Allowed: `page`, `sitemap`, `extract`. |
| `payload.change_detection_type` | `"exact" \| "semantic"` | No | — | Filter by change detection type. Allowed: `exact`, `semantic`. |
| `payload.tag` | `string` | No | — | Filter to items that have this tag. |
| `payload.since` | `string` | No | — | Only include items at or after this ISO 8601 timestamp. Format: `date-time`. |
| `payload.until` | `string` | No | — | Only include items before this ISO 8601 timestamp. Format: `date-time`. |
| `payload.limit` | `integer` | No | — | Maximum number of items to return per page (1-100). Defaults to 25. Minimum: 1. Maximum: 100. |
| `payload.cursor` | `string` | No | — | Opaque pagination cursor from a previous response. |

<details>
  <summary>Show raw input schema</summary>

  ### Input JSON Schema

  ```json theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
  {
    "type": "object",
    "description": "Returns an account-wide feed of detected changes across monitors.",
    "properties": {
      "monitor_id": {
        "type": "string",
        "description": "Filter changes to a single monitor."
      },
      "target_type": {
        "type": "string",
        "description": "Filter by target type.",
        "enum": [
          "page",
          "sitemap",
          "extract"
        ]
      },
      "change_detection_type": {
        "type": "string",
        "description": "Filter by change detection type.",
        "enum": [
          "exact",
          "semantic"
        ]
      },
      "tag": {
        "type": "string",
        "description": "Filter to items that have this tag."
      },
      "since": {
        "type": "string",
        "description": "Only include items at or after this ISO 8601 timestamp.",
        "format": "date-time"
      },
      "until": {
        "type": "string",
        "description": "Only include items before this ISO 8601 timestamp.",
        "format": "date-time"
      },
      "limit": {
        "type": "integer",
        "description": "Maximum number of items to return per page (1-100). Defaults to 25.",
        "minimum": 1,
        "maximum": 100
      },
      "cursor": {
        "type": "string",
        "description": "Opaque pagination cursor from a previous response."
      }
    },
    "required": [],
    "additionalProperties": false
  }
  ```
</details>

## Output reference

| Name | Type | Required | Default | Details |
| - | - | - | - | - |
| `result.data` | `object` | Yes | — | — |
| `result.data.data` | `array` | Yes | — | — |
| `result.data.data[].mode` | `"web"` | Yes | — | Allowed: `web`. |
| `result.data.data[].id` | `string` | Yes | — | — |
| `result.data.data[].monitor_id` | `string` | Yes | — | — |
| `result.data.data[].target_type` | `"page" \| "sitemap" \| "extract"` | Yes | — | Allowed: `page`, `sitemap`, `extract`. |
| `result.data.data[].change_detection_type` | `"exact" \| "semantic"` | Yes | — | Allowed: `exact`, `semantic`. |
| `result.data.data[].title` | `string` | Yes | — | — |
| `result.data.data[].summary` | `string` | Yes | — | — |
| `result.data.data[].detected_at` | `string` | Yes | — | Format: `date-time`. |
| `result.data.data[].url` | `string` | Yes | — | Format: `uri`. |
| `result.data.data[].importance` | `"low" \| "medium" \| "high"` | No | — | Allowed: `low`, `medium`, `high`. |
| `result.data.data[].confidence` | `number` | No | — | Minimum: 0. Maximum: 1. |
| `result.data.data[].added_url_count` | `integer` | No | — | Minimum: 0. |
| `result.data.data[].removed_url_count` | `integer` | No | — | Minimum: 0. |
| `result.data.data[].matched_url_count` | `integer` | No | — | Minimum: 0. |
| `result.data.data[].tags` | `array` | No | — | Maximum items: 20. Items must be unique. |
| `result.data.has_more` | `boolean` | Yes | — | — |
| `result.data.next_cursor` | `string \| null` | Yes | — | — |
| `result.meta` | `object` | No | — | — |

<details>
  <summary>Show raw output schema</summary>

  ### Output JSON Schema

  ```json theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
  {
    "type": "object",
    "properties": {
      "data": {
        "type": "object",
        "properties": {
          "data": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "mode": {
                  "type": "string",
                  "enum": [
                    "web"
                  ]
                },
                "id": {
                  "type": "string"
                },
                "monitor_id": {
                  "type": "string"
                },
                "target_type": {
                  "type": "string",
                  "enum": [
                    "page",
                    "sitemap",
                    "extract"
                  ]
                },
                "change_detection_type": {
                  "type": "string",
                  "enum": [
                    "exact",
                    "semantic"
                  ]
                },
                "title": {
                  "type": "string"
                },
                "summary": {
                  "type": "string"
                },
                "detected_at": {
                  "type": "string",
                  "format": "date-time"
                },
                "url": {
                  "type": "string",
                  "format": "uri"
                },
                "importance": {
                  "type": "string",
                  "enum": [
                    "low",
                    "medium",
                    "high"
                  ]
                },
                "confidence": {
                  "type": "number",
                  "minimum": 0,
                  "maximum": 1
                },
                "added_url_count": {
                  "type": "integer",
                  "minimum": 0
                },
                "removed_url_count": {
                  "type": "integer",
                  "minimum": 0
                },
                "matched_url_count": {
                  "type": "integer",
                  "minimum": 0
                },
                "tags": {
                  "type": "array",
                  "maxItems": 20,
                  "uniqueItems": true,
                  "items": {
                    "type": "string",
                    "minLength": 1,
                    "maxLength": 50
                  }
                }
              },
              "required": [
                "mode",
                "id",
                "monitor_id",
                "target_type",
                "change_detection_type",
                "title",
                "summary",
                "detected_at",
                "url"
              ],
              "additionalProperties": false
            }
          },
          "has_more": {
            "type": "boolean"
          },
          "next_cursor": {
            "type": [
              "string",
              "null"
            ]
          }
        },
        "required": [
          "data",
          "has_more",
          "next_cursor"
        ],
        "additionalProperties": false
      },
      "meta": {
        "type": "object",
        "additionalProperties": true
      }
    },
    "required": [
      "data"
    ],
    "additionalProperties": false
  }
  ```
</details>

## Deepline cost

* Pricing model: `fixed` (per call).
* Estimated Deepline credits: `0` per pricing unit.
* Provider-native pricing may still exist outside Deepline credit billing.

## Related documentation

* [Context.dev provider guide](https://deepline.com/docs/providers/contextdev/guide.md)
* [SDK V2 quickstart](https://deepline.com/docs/sdk-v2/quickstart.md)
* [SDK reference](https://deepline.com/docs/sdk-v2/sdk-reference.md)
* [Run tools across a CSV](https://deepline.com/docs/sdk-v2/batch-csv.md)


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