> ## 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.

# Get placement review history

> Read dated model suggestions, corrections, undo actions and concerns for one retained physical occurrence.

`get_placement_review_history`

Read dated model suggestions, corrections, undo actions and concerns for one retained physical occurrence. Pages remain bound to that capture and a frozen revision. Missing or expired history does not establish that no earlier changes occurred. Makes no source fetch, write or model call.

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

| Access | Behavior |
| - | - |
| `watches: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_placement_review_history",
      "arguments": {
        "watchId": "watch_example",
        "occurrenceId": "sha256:1111111111111111111111111111111111111111111111111111111111111111",
        "captureId": "capture_example",
        "evidenceHash": "sha256:2222222222222222222222222222222222222222222222222222222222222222",
        "limit": 20
      }
    }
  }
  ```

  ```bash CLI theme={null}
  agentlinkops call get_placement_review_history --args '{"watchId":"watch_example","occurrenceId":"sha256:1111111111111111111111111111111111111111111111111111111111111111","captureId":"capture_example","evidenceHash":"sha256:2222222222222222222222222222222222222222222222222222222222222222","limit":20}'
  ```

  ```bash HTTP theme={null}
  curl "$AGENTLINKOPS_API_URL/v1/commands/get_placement_review_history" \
    -H "Authorization: Bearer $AGENTLINKOPS_API_KEY" \
    -H 'Content-Type: application/json' \
    --data '{"watchId":"watch_example","occurrenceId":"sha256:1111111111111111111111111111111111111111111111111111111111111111","captureId":"capture_example","evidenceHash":"sha256:2222222222222222222222222222222222222222222222222222222222222222","limit":20}'
  ```
</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}
{
  "schemaVersion": 1,
  "historyMeaning": "Only retained reviews for this exact occurrence and capture are included.",
  "binding": {
    "workspaceId": "workspace_example",
    "projectId": "project_example",
    "watchId": "watch_example",
    "occurrenceId": "sha256:1111111111111111111111111111111111111111111111111111111111111111",
    "captureId": "capture_example",
    "evidenceHash": "sha256:2222222222222222222222222222222222222222222222222222222222222222"
  },
  "asOfRevision": 1,
  "readAt": "2026-10-08T20:00:00.000Z",
  "items": [],
  "nextCursor": null,
  "hasMore": false,
  "coverage": {
    "status": "retained",
    "reason": "exact_capture_only",
    "meaning": "Missing history does not establish that no earlier changes occurred."
  }
}
```

## 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 |
| - | - | - | - |
| `watchId` | string | Required | Identifier of the watch returned by its create or list operation. minLength: 1; maxLength: 200 |
| `occurrenceId` | string | Required | Identifier of the occurrence returned by its create or list operation. pattern: "^sha256:\[a-f0-9]\{64}\$" |
| `captureId` | string | Required | Identifier of the capture returned by its create or list operation. minLength: 1; maxLength: 200 |
| `evidenceHash` | string | Required | The evidence hash value; allowed values and bounds are specified in this schema. pattern: "^sha256:\[a-f0-9]\{64}\$" |
| `limit` | integer | Optional | Maximum rows in this page or bounded report; subject to the schema maximum. minimum: 1; maximum: 50; default: 20 |
| `cursor` | string | Optional | Opaque continuation returned by this same listing; omit for the first page. minLength: 1; maxLength: 2048 |

### Validation and omitted values

Reads only retained suggestions, corrections, undo actions and concerns for the exact occurrence and capture. Original classification and later publication dates remain distinct.

Pagination freezes a project revision and binds the current credential and evidence. Refresh to include later events. Missing or expired history does not prove that no earlier review occurred.

Returns no source passages or provider payloads. Reading neither changes a review nor makes a source fetch or model call.

### Defaults when omitted

| Field | Default |
| - | - |
| `limit` | `20` |

## 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.

* **`schemaVersion`** (number, required): must equal 1
* **`historyMeaning`** (string, required): minLength: 1; maxLength: 1000
* **`binding`** (object, required): additional fields rejected
* **`asOfRevision`** (integer, required): minimum: 0; maximum: 9007199254740991
* **`readAt`** (string, required): 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+)?(?:Z))\$"
* **`items`** (array, required): Records in this bounded page. maxItems: 50
* **`nextCursor`** (string / null, required).
* **`hasMore`** (boolean, required).
* **`coverage`** (object, required): Dataset scope and completeness, including limits on what these results establish. additional fields rejected

<Accordion title="All fields and nested objects">
  | Field | Type | Presence | Meaning and constraints |
  | - | - | - | - |
  | `schemaVersion` | number | Required | must equal 1 |
  | `historyMeaning` | string | Required | minLength: 1; maxLength: 1000 |
  | `binding` | object | Required | additional fields rejected |
  | `binding.workspaceId` | string | Required | Identifier returned by the related operation. minLength: 1; maxLength: 200 |
  | `binding.projectId` | string | Required | Identifier returned by the related operation. minLength: 1; maxLength: 200 |
  | `binding.watchId` | string | Required | Identifier returned by the related operation. minLength: 1; maxLength: 200 |
  | `binding.occurrenceId` | string | Required | Identifier returned by the related operation. pattern: "^sha256:\[a-f0-9]\{64}\$" |
  | `binding.captureId` | string | Required | Identifier returned by the related operation. minLength: 1; maxLength: 200 |
  | `binding.evidenceHash` | string | Required | pattern: "^sha256:\[a-f0-9]\{64}\$" |
  | `asOfRevision` | integer | Required | minimum: 0; maximum: 9007199254740991 |
  | `readAt` | string | Required | 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+)?(?:Z))\$" |
  | `items` | array | Required | Records in this bounded page. maxItems: 50 |
  | `items[].id` | string | Required | Resource identifier returned by the operation. minLength: 1; maxLength: 240 |
  | `items[].kind` | string | Required | values: "model\_receipt", "correction", "revocation", "concern" |
  | `items[].revision` | integer | Required | Optimistic concurrency revision; supply it as expectedRevision on the next write. minimum: 0; maximum: 9007199254740991 |
  | `items[].occurredAt` | string | Required | 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+)?(?:Z))\$" |
  | `items[].recordedAt` | string | Required | 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+)?(?:Z))\$" |
  | `items[].actorId` | string / null | Required | Identifier returned by the related operation. |
  | `items[].axis` | string / null | Required | |
  | `items[].value` | string / null | Required | |
  | `items[].state` | string / null | Required | Saved lifecycle or evidence state, as enumerated for this record. |
  | `items[].reason` | string / null | Required | Recorded explanation; null when no explanation applies. |
  | `items[].receiptId` | string / null | Required | Identifier returned by the related operation. |
  | `items[].axes` | array | Optional | minItems: 1; maxItems: 6 |
  | `items[].axes[].axis` | string | Required | values: "page\_surface", "link\_role", "region\_inferred", "relevance", "risk\_cues", "acquisition" |
  | `items[].axes[].value` | string / null | Required | |
  | `items[].axes[].state` | string | Required | Saved lifecycle or evidence state, as enumerated for this record. values: "accepted\_manual", "accepted\_auto", "suggested", "superseded", "insufficient\_evidence", "not\_evaluated" |
  | `items[].axes[].basis` | string | Required | values: "model", "rule", "manual", "attributed" |
  | `items[].policy` | object | Optional | additional fields rejected |
  | `items[].policy.taxonomyVersion` | string | Required | minLength: 1; maxLength: 200 |
  | `items[].policy.rubricVersion` | string | Required | minLength: 1; maxLength: 200 |
  | `items[].policy.extractorVersion` | string | Required | minLength: 1; maxLength: 200 |
  | `items[].policy.privacyRevision` | string | Required | minLength: 1; maxLength: 200 |
  | `nextCursor` | string / null | Required | |
  | `hasMore` | boolean | Required | |
  | `coverage` | object | Required | Dataset scope and completeness, including limits on what these results establish. additional fields rejected |
  | `coverage.status` | string | Required | Resource lifecycle status. values: "retained", "expired", "unavailable" |
  | `coverage.reason` | string | Required | Recorded explanation; null when no explanation applies. minLength: 1; maxLength: 200 |
  | `coverage.meaning` | string | Required | minLength: 1; maxLength: 1000 |
</Accordion>

[Download input schema](/schemas/get_placement_review_history.input.json) · [Download output schema](/schemas/get_placement_review_history.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 `CLASSIFICATION_HISTORY_INVALID_CURSOR`, `CLASSIFICATION_HISTORY_UNAVAILABLE`, `CLASSIFICATION_ACCESS_DENIED`.

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/watches/{watchId}/classification/history` | 200 | Reads retained review history for one exact occurrence and capture. Pages bind a frozen revision. Expired or missing history does not prove that no earlier changes occurred. Makes no model request or write. |

## Continue

[get\_placement\_context](/reference/commands/get_placement_context)

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


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