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Changes to one entity

GET
/v1/history/{entity_ref}
curl --request GET \
--url https://app.everruns.com/api/v1/history/example
entity_ref
required
string

The entity’s public id, e.g. agent_01933b5a…

kind
string

Entity kind, needed only for kinds whose ids have no prefix (schedule, saved_report, check_rule).

action
string

Only this action (created, updated, deleted, …).

before
string format: date-time

Only changes older than this timestamp (page cursor).

limit
integer format: int64

Max entries (default 50, max 200).

Recorded changes, newest first

Media typeapplication/json
Array<object>

One recorded change to an entity.

object
action
required

What happened: created, updated, deleted, …

string
actor_kind
required

user, api_key, agent_session or system.

string
actor_user_id

The user the change was made as (for an agent, the user it acted for).

string | null format: uuid
changed_fields
required

Fields the caller asked to change.

Array<string>
command
required

Wire name of the command that made the change.

string
created_at
required
string format: date-time
entity_kind
required

Kind of entity changed, e.g. agent.

string
entity_ref
required

The entity’s public id.

string
id
required

Id of this history entry.

string format: uuid
reason

Why, in the caller’s words. Caller text, not verified.

string | null
request_id

Correlation id of the HTTP request, when there was one.

string | null
surface
required

Where the change came in: api, commands, mcp, platform, worker or internal.

string
via_agent_id

The agent of that session.

string | null
via_session_id

The session through which an agent made the change.

string | null
Example
[
{
"action": "updated",
"actor_kind": "agent_session",
"command": "update_agent",
"entity_kind": "agent",
"entity_ref": "agent_01933b5a000070008000000000000001",
"surface": "platform"
}
]

Unknown kind or action, or a ref whose kind cannot be told

Media typeapplication/json

Standard error response.

Wire shape is RFC 9457 Problem Details: every error response includes title and status, and may include detail, code, allowed_actions, retry_after_seconds, instance, and type. The content type is rewritten to application/problem+json with the application/problem+json content type.

object
allowed_actions

Recovery actions the caller can take next.

Array<object>

Agent-actionable link describing a follow-up the caller can take. Used in two contexts:

  • Error recovery — ErrorResponse.allowed_actions carries rels like retry, retry-later, unarchive, get-existing so the agent knows the right next call after a 4xx/429.
  • Entity hypermedia — WithUrls<T>.allowed_actions carries state-aware rels like cancel, events, self, update on the entity itself so the agent can follow links instead of reconstructing routes from prose.

The shape is intentionally identical across both contexts; the closed rel vocabulary distinguishes them.

object
hint

Short, agent-readable hint (e.g. “Shorten ‘name’ to <= 200 chars.”, “Cancel the active turn for this session.”).

string | null
href

Absolute (preferred) or relative URL the caller may invoke directly. Always present on entity hypermedia actions (WithUrls<T>.allowed_actions); optional on error-recovery actions (ErrorResponse.allowed_actions) where the matching operation_id is enough and the URI is implicit from the failed call.

string | null
method

HTTP method to use against href. Required for entity hypermedia actions; usually omitted on error-recovery actions where the same operation is retried with its original method.

string | null
operation_id

OpenAPI operationId the caller should invoke. Lets an MCP client resolve the call without parsing href.

string | null
rel
required

Link relation describing the action. Examples: self, cancel, pause, resume, events, retry, retry-later, unarchive, get-existing, delete, update.

string
schema_ref

OpenAPI $ref to the request-body schema, when the action takes one (e.g. #/components/schemas/UpdateSessionRequest). Lets a tool-calling agent fetch the input shape without scanning the whole spec.

string | null
code

Stable, machine-readable error code (snake_case).

string | null
detail

Human-readable explanation specific to this occurrence.

string | null
instance

Request URI for this occurrence.

string | null
retry_after_seconds

Seconds the caller should wait before retrying (429 / transient 503).

integer | null format: int32
status
required

HTTP status code; mirrors the response status line.

integer format: int32
title
required

Short, human-readable summary of the problem (e.g. “Not Found”).

string
type

RFC 9457 problem type URI. Optional; identifies the problem class.

string | null
Example
{
"allowed_actions": [
{
"method": "POST"
}
],
"code": "session_not_found",
"detail": "Session session_01933b5a000070008000000000000001 not found in org org_01933b5a000070008000000000000001.",
"instance": "/v1/sessions/session_01933b5a000070008000000000000001",
"retry_after_seconds": 30,
"status": 404,
"title": "Session not found",
"type": "https://docs.everruns.com/errors/session_not_found"
}

Forbidden

Media typeapplication/json

Standard error response.

Wire shape is RFC 9457 Problem Details: every error response includes title and status, and may include detail, code, allowed_actions, retry_after_seconds, instance, and type. The content type is rewritten to application/problem+json with the application/problem+json content type.

object
allowed_actions

Recovery actions the caller can take next.

Array<object>

Agent-actionable link describing a follow-up the caller can take. Used in two contexts:

  • Error recovery — ErrorResponse.allowed_actions carries rels like retry, retry-later, unarchive, get-existing so the agent knows the right next call after a 4xx/429.
  • Entity hypermedia — WithUrls<T>.allowed_actions carries state-aware rels like cancel, events, self, update on the entity itself so the agent can follow links instead of reconstructing routes from prose.

The shape is intentionally identical across both contexts; the closed rel vocabulary distinguishes them.

object
hint

Short, agent-readable hint (e.g. “Shorten ‘name’ to <= 200 chars.”, “Cancel the active turn for this session.”).

string | null
href

Absolute (preferred) or relative URL the caller may invoke directly. Always present on entity hypermedia actions (WithUrls<T>.allowed_actions); optional on error-recovery actions (ErrorResponse.allowed_actions) where the matching operation_id is enough and the URI is implicit from the failed call.

string | null
method

HTTP method to use against href. Required for entity hypermedia actions; usually omitted on error-recovery actions where the same operation is retried with its original method.

string | null
operation_id

OpenAPI operationId the caller should invoke. Lets an MCP client resolve the call without parsing href.

string | null
rel
required

Link relation describing the action. Examples: self, cancel, pause, resume, events, retry, retry-later, unarchive, get-existing, delete, update.

string
schema_ref

OpenAPI $ref to the request-body schema, when the action takes one (e.g. #/components/schemas/UpdateSessionRequest). Lets a tool-calling agent fetch the input shape without scanning the whole spec.

string | null
code

Stable, machine-readable error code (snake_case).

string | null
detail

Human-readable explanation specific to this occurrence.

string | null
instance

Request URI for this occurrence.

string | null
retry_after_seconds

Seconds the caller should wait before retrying (429 / transient 503).

integer | null format: int32
status
required

HTTP status code; mirrors the response status line.

integer format: int32
title
required

Short, human-readable summary of the problem (e.g. “Not Found”).

string
type

RFC 9457 problem type URI. Optional; identifies the problem class.

string | null
Example
{
"allowed_actions": [
{
"method": "POST"
}
],
"code": "session_not_found",
"detail": "Session session_01933b5a000070008000000000000001 not found in org org_01933b5a000070008000000000000001.",
"instance": "/v1/sessions/session_01933b5a000070008000000000000001",
"retry_after_seconds": 30,
"status": 404,
"title": "Session not found",
"type": "https://docs.everruns.com/errors/session_not_found"
}