> ## 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 change events

> Read change events from one feed using an opaque cursor: feed links for placement changes, feed targets for destination-health changes.

`list_events`

Read change events from one feed using an opaque cursor: feed links for placement changes, feed targets for destination-health changes. The two feeds keep separate cursors; a broken destination does not imply its source backlink disappeared. Apply a full page locally before saving next\_cursor.

<Note>Available in the deployed MCP and HTTP bundle. Confirm access and inputs with your connected catalog. Workspace scopes and enabled providers still apply.</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": "list_events",
      "arguments": {
        "feed": "links",
        "limit": 50
      }
    }
  }
  ```

  ```bash CLI theme={null}
  agentlinkops call list_events --args '{"feed":"links","limit":50}'
  ```

  ```bash HTTP theme={null}
  curl "$AGENTLINKOPS_API_URL/v1/commands/list_events" \
    -H "Authorization: Bearer $AGENTLINKOPS_API_KEY" \
    -H 'Content-Type: application/json' \
    --data '{"feed":"links","limit":50}'
  ```
</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}
{
  "workspace_id": "ws_example",
  "events": [],
  "next_cursor": "example_opaque_cursor",
  "has_more": false
}
```

## Response formats

`format` selects the row shape. `detailed` is the example above: every field. `concise` keeps, per row: `id`, `type`, `watch_id`, `target_id`, `created_at`, `cursor`, `data (before and after snapshots without occurrences, expectations and signatures; observation_id; evidence_key)`; every top-level field (cursors, counts, coverage, metadata) is kept in both. The observation state an unknown-versus-absent decision depends on is never dropped. MCP and code mode default to concise; the CLI and HTTP default to detailed; the response names the default it applied in `defaults_applied`.

## 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                                                                                                                                                                                                                                                                                          |
| ----------- | ------- | -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `feed`      | string  | Required | Which change feed to read: links (placement changes) or targets (destination-health changes); each feed keeps its own cursor. values: "links", "targets"                                                                                                                                                         |
| `cursor`    | string  | Optional | Opaque continuation returned by this same listing; omit for the first page.                                                                                                                                                                                                                                      |
| `limit`     | integer | Optional | Maximum rows in this page or bounded report; subject to the schema maximum. minimum: 1; maximum: 100; default: 50                                                                                                                                                                                                |
| `projectId` | string  | Optional | Identifier of the project returned by its create or list operation. minLength: 1; maxLength: 200                                                                                                                                                                                                                 |
| `format`    | string  | Optional | Response shape: concise keeps the fields needed to decide and to call next (the evidence state always included); detailed returns every field. MCP and code mode default to concise; REST and the CLI to detailed. The response names the default it applied in defaults\_applied. values: "concise", "detailed" |

### Validation and omitted values

feed selects one of two independent feeds with separate cursors: links for placement changes, targets for destination-health changes. Never reuse a cursor across feeds. The retired names list\_link\_events and list\_target\_events resolve here with the feed implied.

Omit cursor for the first page. Keep continuation cursors opaque and use them only with the same listing and filters.

Omitting projectId reads the accessible workspace scope rather than selecting a different project.

Events are ordered by sequence ascending. Apply the entire returned page before persisting the next cursor. Each event feed has its own cursor history.

Without a cursor, reads start at the beginning of retained source-event history. An expired supplied cursor returns snapshot recovery instructions.

Without a cursor, reads start at the beginning of retained destination-event history. An expired supplied cursor returns destination snapshot recovery instructions.

### Defaults when omitted

| Field   | Default |
| ------- | ------- |
| `limit` | `50`    |

## 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.

* **`workspace_id`** (string, optional): Workspace that owns this record.
* **`events`** (array, required).
* **`next_cursor`** (string, required): Opaque checkpoint for this feed. Save it after processing the events, even when has\_more is false. Continue paging only while has\_more is true.
* **`has_more`** (boolean, required): True when another page is available.

<Accordion title="All fields and nested objects">
  | Field                          | Type          | Presence | Meaning and constraints                                                                                                                           |
  | ------------------------------ | ------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
  | `workspace_id`                 | string        | Optional | Workspace that owns this record.                                                                                                                  |
  | `events`                       | array         | Required |                                                                                                                                                   |
  | `events[].id`                  | string        | Required | Resource identifier returned by the operation.                                                                                                    |
  | `events[].workspace_id`        | string        | Optional | Workspace that owns this record.                                                                                                                  |
  | `events[].project_id`          | string / null | Optional | Project that owns this record.                                                                                                                    |
  | `events[].watch_id`            | string        | Optional | Identifier returned by the related operation.                                                                                                     |
  | `events[].target_id`           | string        | Optional | Identifier returned by the related operation.                                                                                                     |
  | `events[].type`                | string        | Optional |                                                                                                                                                   |
  | `events[].created_at`          | string        | Optional | UTC timestamp when the record was created.                                                                                                        |
  | `events[].cursor`              | string        | Optional |                                                                                                                                                   |
  | `events[].data`                | object        | Required |                                                                                                                                                   |
  | `events[].data.before`         | any           | Optional |                                                                                                                                                   |
  | `events[].data.after`          | any           | Optional |                                                                                                                                                   |
  | `events[].data.state`          | string        | Optional | Saved lifecycle or evidence state, as enumerated for this record.                                                                                 |
  | `events[].data.reason`         | string / null | Optional | Recorded explanation; null when no explanation applies.                                                                                           |
  | `events[].data.observation_id` | string        | Optional | Identifier returned by the related operation.                                                                                                     |
  | `next_cursor`                  | string        | Required | Opaque checkpoint for this feed. Save it after processing the events, even when has\_more is false. Continue paging only while has\_more is true. |
  | `has_more`                     | boolean       | Required | True when another page is available.                                                                                                              |
</Accordion>

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

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/events`        | 200     | Remaining read arguments go in query parameters. |
| `GET /v1/target-events` | 200     | Remaining read arguments go in query parameters. |

## Continue

[export\_link\_watches](/reference/commands/export_link_watches) · [list\_targets](/reference/commands/list_targets)

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