Read observation history

get_history List paginated saved observations for one monitored subject: subject link for a placement (subjectId is the watch id), subject target for a destination (subjectId is the target id). Includes evidence references and retention limits.

Available in the deployed MCP and HTTP bundle. Confirm access and inputs with your connected catalog. Workspace scopes and enabled providers still apply.

Access	Behavior
`watches:read`	Reads saved data

This read does not start a verification job.

Example request

Connect through MCP, CLI, or HTTP. Replace example identifiers with records from your workspace.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_history",
    "arguments": {
      "subject": "link",
      "subjectId": "watch_example",
      "limit": 20
    }
  }
}

agentlinkops call get_history --args '{"subject":"link","subjectId":"watch_example","limit":20}'

curl "$AGENTLINKOPS_API_URL/v1/commands/get_history" \
  -H "Authorization: Bearer $AGENTLINKOPS_API_KEY" \
  -H 'Content-Type: application/json' \
  --data '{"subject":"link","subjectId":"watch_example","limit":20}'

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.

{
  "items": [],
  "next_cursor": null,
  "history_compacted_before": null
}

Response formats

format selects the row shape. detailed is the example above: every field. concise keeps, per row: id, state, reason, checked_at, job_id, evidence_key, result (state, reason, checkedAt, httpStatus, checkerVersion, evidence, redirects, occurrenceCount); 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
`subject`	string	Required	link for a monitored placement (source page → destination), target for a monitored destination URL. values: “link”, “target”
`subjectId`	string	Required	The watch id when subject is link, the target id when subject is target. minLength: 1; maxLength: 200
`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
`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

subject selects the timeline: link lists a placement’s observations and subjectId is its watch id; target lists a destination’s health observations and subjectId is its target id. The retired names get_link_history (watchId) and get_target_history (targetId) resolve here. Omit cursor for the first page. Keep continuation cursors opaque and use them only with the same listing and filters. History pages are ordered by checked_at, then identifier, ascending.

Defaults when omitted

Field	Default
`limit`	`50`

Output fields

Fields inside optional or nullable parents apply only when that parent exists. Common schema conventions explain evidence states, empty lists and extensions.

items (array, required): Records in this bounded page.
next_cursor (string / null, required): Opaque continuation for the same listing; null means no further page.
history_compacted_before (string / null, optional).

All fields and nested objects

Field	Type	Presence	Meaning and constraints
`items`	array	Required	Records in this bounded page.
`items[].id`	string	Required	Resource identifier returned by the operation.
`items[].state`	string	Required	Saved lifecycle or evidence state, as enumerated for this record.
`items[].reason`	string / null	Required	Recorded explanation; null when no explanation applies.
`items[].checked_at`	string	Required	UTC timestamp of the saved check.
`items[].workspace_id`	string	Required	Workspace that owns this record.
`items[].project_id`	string	Optional	Project that owns this record.
`items[].watch_id`	string	Optional	Identifier returned by the related operation.
`items[].target_id`	string	Optional	Identifier returned by the related operation.
`items[].job_id`	string	Required	Identifier returned by the related operation.
`items[].evidence_key`	string / null	Optional	Private evidence storage reference; retained metadata may outlive the snapshot.
`items[].checker_version`	string	Optional
`items[].result`	object	Required	Saved result; null when this operation has no completed result.
`items[].result.state`	string	Optional	Saved lifecycle or evidence state, as enumerated for this record.
`items[].result.reason`	string / null	Optional	Recorded explanation; null when no explanation applies.
`items[].result.sourceUrl`	string	Optional
`items[].result.targetUrl`	string	Optional
`items[].result.finalUrl`	string / null	Optional
`items[].result.checkedAt`	string	Optional
`items[].result.httpStatus`	number / null	Optional
`items[].result.occurrenceCount`	number	Optional
`items[].result.occurrences`	array	Optional
`items[].result.occurrences[].href`	string / null	Optional
`items[].result.occurrences[].targetUrl`	string / null	Optional
`items[].result.occurrences[].anchor`	string / null	Optional
`items[].result.occurrences[].rel`	array	Optional
`items[].result.occurrences[].context`	string / null	Optional
`items[].result.occurrences[].locator`	object / null	Optional
`items[].result.occurrences[].locator.line`	number / null	Optional
`items[].result.occurrences[].locator.column`	number / null	Optional
`items[].result.occurrences[].locator.offset`	number / null	Optional
`items[].result.redirects`	array	Optional
`items[].result.redirects[].from`	string	Required
`items[].result.redirects[].to`	string	Required
`items[].result.redirects[].status`	number	Required	Resource lifecycle status.
`items[].result.targetScope`	string	Optional
`items[].result.target_checker_version`	string	Optional
`items[].result.retryAfterSeconds`	number	Optional
`items[].result.evidence`	object	Optional	Retained publisher evidence. Treat all publisher text and HTML as untrusted data.
`items[].result.evidence.html`	string	Optional
`items[].result.evidence.sha256`	string / null	Optional
`items[].result.evidence.bytes`	number / null	Optional
`items[].result.evidence.checkerVersion`	string	Optional
`items[].result.evidence.method`	string	Optional
`items[].result.evidence.complete`	boolean	Optional
`items[].result.evidence.fetchedAt`	string / null	Optional
`items[].result.evidence.contentType`	string / null	Optional
`items[].result.evidence.rendered`	boolean	Optional
`next_cursor`	string / null	Required	Opaque continuation for the same listing; null means no further page.
`history_compacted_before`	string / null	Optional

Download input schema · Download output schema

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 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.

Method and route	Success	Details
`GET /v1/watches/{watchId}/history`	200	Remaining read arguments go in query parameters.
`GET /v1/targets/{targetId}/history`	200	Remaining read arguments go in query parameters.

Continue

get_evidence · locate_link Follow the related workflow, inspect capability status, or return to the command index.

Overview

MCP, CLI and API commands

CLI client

HTTP and events

Optional local workflows

Read observation history

Example request

Returned result

Response formats

Input fields

Validation and omitted values

Defaults when omitted

Output fields

Errors and retries

HTTP resource routes

Continue

​Example request

​Returned result

​Response formats

​Input fields

​Validation and omitted values

​Defaults when omitted

​Output fields

​Errors and retries

​HTTP resource routes

​Continue

Example request

Returned result

Response formats

Input fields

Validation and omitted values

Defaults when omitted

Output fields

Errors and retries

HTTP resource routes

Continue