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

# Read recent placement changes

> Read retained placement changes in one recent UTC period for an authorized website.

`get_link_change_report`

Read retained placement changes in one recent UTC period for an authorized website. The bounded response names its frozen request boundary, row count, truncation and retention uncertainty; incomplete results do not prove a quiet period.

<Note>Development preview. This command is absent from the verified deployed bundle. Use a matching development environment.</Note>

| Access | Behavior |
| - | - |
| `events:read` | Reads saved data |

This read does not start a verification job.

## Example request

Connect through [MCP](/guides/connect-mcp), [CLI](/guides/connect-cli), or [HTTP](/guides/connect-http). Replace example identifiers with records from your workspace.

<CodeGroup>
  ```json MCP theme={null}
  {
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "get_link_change_report",
      "arguments": {
        "projectId": "pr_example",
        "from": "2026-10-01T00:00:00.000Z"
      }
    }
  }
  ```

  ```bash CLI theme={null}
  agentlinkops call get_link_change_report --args '{"projectId":"pr_example","from":"2026-10-01T00:00:00.000Z"}'
  ```

  ```bash HTTP theme={null}
  curl "$AGENTLINKOPS_API_URL/v1/commands/get_link_change_report" \
    -H "Authorization: Bearer $AGENTLINKOPS_API_KEY" \
    -H 'Content-Type: application/json' \
    --data '{"projectId":"pr_example","from":"2026-10-01T00:00:00.000Z"}'
  ```
</CodeGroup>

## Returned result

Illustrative data validated against the documented response schema. IDs and dates are examples, not a live account capture. MCP returns this data in `structuredContent` and in a text content block; generic HTTP and CLI return the JSON result directly.

```json theme={null}
{
  "schema_version": 1,
  "workspace_id": "ws_example",
  "project_id": "pr_example",
  "coverage_scope": "retained_event_feed",
  "from": "2026-10-01T00:00:00.000Z",
  "as_of": "2026-10-04T12:00:00.000Z",
  "through_sequence": 0,
  "count": 0,
  "limit": 500,
  "truncated": false,
  "complete": true,
  "retention_limited": false,
  "scan_limit": 10000,
  "scan_limited": false,
  "events": []
}
```

## Input fields

Omit optional fields when you do not want to supply them. Null is accepted only where listed. Unknown input properties are rejected.

| Field | Type | Presence | Meaning and constraints |
| - | - | - | - |
| `projectId` | string | Required | Identifier of the project returned by its create or list operation. minLength: 1; maxLength: 200 |
| `from` | string | Required | The from value; allowed values and bounds are specified in this schema. format: "date-time"; pattern: "^(?:(?:\d\d\[2468]\[048]\|\d\d\[13579]\[26]\|\d\d0\[48]\|\[02468]\[048]00\|\[13579]\[26]00)-02-29\|\d\{4}-(?:(?:0\[13578]\|1\[02])-(?:0\[1-9]\|\[12]\d\|3\[01])\|(?:0\[469]\|11)-(?:0\[1-9]\|\[12]\d\|30)\|(?:02)-(?:0\[1-9]\|1\d\|2\[0-8])))T(?:(?:\[01]\d\|2\[0-3]):\[0-5]\d:\[0-5]\d\\.\d\{3}(?:Z))\$" |

### Validation and omitted values

projectId is required and must be accessible to the current principal. from is an exact UTC timestamp with milliseconds, earlier than the request time and no more than 31 days old.

The service fixes as\_of and through\_sequence for this response, examines at most the latest 10,000 workspace event sequence positions, returns at most 500 retained placement-acquired, recovered or lost events newest first, and never continues the older cursor feed.

complete describes this bounded retained-event read. A retention floor, scan limit or truncation makes it false; shown counts are then a lower bound. Even a complete empty report does not prove that no unobserved link changed.

## Output fields

Fields inside optional or nullable parents apply only when that parent exists. [Common schema conventions](/reference/schemas) explain evidence states, empty lists and extensions.

* **`schema_version`** (number, required): must equal 1
* **`workspace_id`** (string, required): Workspace that owns this record.
* **`project_id`** (string, required): Project that owns this record.
* **`coverage_scope`** (string, required): must equal "retained\_event\_feed"
* **`from`** (string, required).
* **`as_of`** (string, required).
* **`through_sequence`** (number, required).
* **`count`** (number, required).
* **`limit`** (number, required): must equal 500
* **`truncated`** (boolean, required).
* **`complete`** (boolean, required).
* **`retention_limited`** (boolean, required).
* **`scan_limit`** (number, required): must equal 10000
* **`scan_limited`** (boolean, required).
* **`events`** (array, required).

<Accordion title="All fields and nested objects">
  | Field | Type | Presence | Meaning and constraints |
  | - | - | - | - |
  | `schema_version` | number | Required | must equal 1 |
  | `workspace_id` | string | Required | Workspace that owns this record. |
  | `project_id` | string | Required | Project that owns this record. |
  | `coverage_scope` | string | Required | must equal "retained\_event\_feed" |
  | `from` | string | Required | |
  | `as_of` | string | Required | |
  | `through_sequence` | number | Required | |
  | `count` | number | Required | |
  | `limit` | number | Required | must equal 500 |
  | `truncated` | boolean | Required | |
  | `complete` | boolean | Required | |
  | `retention_limited` | boolean | Required | |
  | `scan_limit` | number | Required | must equal 10000 |
  | `scan_limited` | boolean | Required | |
  | `events` | array | Required | |
  | `events[].id` | string | Required | Resource identifier returned by the operation. |
  | `events[].workspace_id` | string | Required | Workspace that owns this record. |
  | `events[].project_id` | string | Required | Project that owns this record. |
  | `events[].type` | string | Required | values: "placement\_acquired", "placement\_recovered", "placement\_lost" |
  | `events[].created_at` | string | Required | UTC timestamp when the record was created. |
</Accordion>

[Download input schema](/schemas/get_link_change_report.input.json) · [Download output schema](/schemas/get_link_change_report.output.json)

## Errors and retries

The command is annotated idempotent. Reuse an accepted idempotency key when the input provides one; changing the payload under a reused key can conflict. Operation-specific errors include `INVALID_INPUT`, `PROJECT_NOT_FOUND`, `WORKSPACE_ACCESS_DENIED`, `INSUFFICIENT_SCOPE`.

See [error recovery](/reference/errors) for status, scope, cooldown, cursor and retry handling. Unknown observations are result data and do not establish loss.

## HTTP resource routes

These existing resource routes share the operation’s domain behavior. Their parameter placement, status and response envelope can differ from generic invocation. See [HTTP route details](/reference/http/routes).

| Method and route | Success | Details |
| - | - | - |
| `GET /v1/reports/link-changes` | 200 | Requires projectId and from query parameters. Returns a frozen recent-period read of at most 500 retained placement changes with completeness and retention limits. |

## Continue

[list\_events](/reference/commands/list_events) · [get\_link\_reports](/reference/commands/get_link_reports)

Follow the [related workflow](/guides/sync-and-export), inspect [capability status](/capability-status), or return to the [command index](/reference/index).


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