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`GET /api/runners` — list registered runners. System-admin auth, for the Settings UI. Never returns token material.

GET
/api/runners
curl --request GET \
  --url https://example.com/api/runners

Responses

Section titled “Responses”

200

Section titled “200”

Registered runners (no token material)

Media typeapplication/json
Array<object>

A registered runner as exposed to callers. Carries no token material.

object
capabilities
required

Free-form advertised capabilities (images/labels/max_parallel/weight/…). Typed as an open string-keyed map in the spec (not Object, which strips every key) so the FE binds the advertised capability map it reads (#541).

object
key
additional properties
created_at
required
string format: date-time
drain_state
required

ADR 0046 RUNG 2 — graceful drain: active | cordoned | draining. cordoned/draining runners receive no new work but keep heartbeating and finish in-flight assignments. Always populated from the row (this type is serialize-only), so no serde default is needed.

string
id
required
string format: uuid
last_heartbeat_at
string | null format: date-time
name
required
string
registered_at
required
string format: date-time
status
required
string
Examplegenerated
[
  {
    "capabilities": {
      "additionalProperty": "example"
    },
    "created_at": "2026-04-15T12:00:00Z",
    "drain_state": "example",
    "id": "2489E9AD-2EE2-8E00-8EC9-32D5F69181C0",
    "last_heartbeat_at": "2026-04-15T12:00:00Z",
    "name": "example",
    "registered_at": "2026-04-15T12:00:00Z",
    "status": "example"
  }
]

401

Section titled “401”

Authentication required

Media typeapplication/json

The canonical JSON body of every error response — the single source of truth the frontend binds to. Every AppError serializes as this exact shape, and the generated OpenAPI component ApiErrorBody (with its ErrorCode enum) is what the frontend error schema is generated from, so there is no hand-written error schema on either end.

object
code
required

Machine-readable, stable error code.

string
Allowed values: not_found unauthorized forbidden bad_request unprocessable precondition_failed conflict method_not_allowed rate_limited quota_exceeded database_error docker_error vault_error internal_error
details
One of:
null
error
required

Human-readable message (the server’s English text; the client may localize by code).

string
Example
{
  "code": "not_found"
}

403

Section titled “403”

Permission denied

Media typeapplication/json

The canonical JSON body of every error response — the single source of truth the frontend binds to. Every AppError serializes as this exact shape, and the generated OpenAPI component ApiErrorBody (with its ErrorCode enum) is what the frontend error schema is generated from, so there is no hand-written error schema on either end.

object
code
required

Machine-readable, stable error code.

string
Allowed values: not_found unauthorized forbidden bad_request unprocessable precondition_failed conflict method_not_allowed rate_limited quota_exceeded database_error docker_error vault_error internal_error
details
One of:
null
error
required

Human-readable message (the server’s English text; the client may localize by code).

string
Example
{
  "code": "not_found"
}

500

Section titled “500”

Structured server error

Media typeapplication/json

The canonical JSON body of every error response — the single source of truth the frontend binds to. Every AppError serializes as this exact shape, and the generated OpenAPI component ApiErrorBody (with its ErrorCode enum) is what the frontend error schema is generated from, so there is no hand-written error schema on either end.

object
code
required

Machine-readable, stable error code.

string
Allowed values: not_found unauthorized forbidden bad_request unprocessable precondition_failed conflict method_not_allowed rate_limited quota_exceeded database_error docker_error vault_error internal_error
details
One of:
null
error
required

Human-readable message (the server’s English text; the client may localize by code).

string
Example
{
  "code": "not_found"
}