## List memory layers

`client.MemoryLayers.List(ctx, query) (*CursorPagination[MemoryLayer], error)`

**get** `/v1/memory_layers`

Lists all memory layers in the workspace

### Parameters

- `query MemoryLayerListParams`

  - `Cursor param.Field[string]`

    Pagination cursor from previous response

  - `IncludeInfo param.Field[bool]`

    When set to true you may use more of your alloted API rate-limit

  - `Limit param.Field[int64]`

    Maximum number of results to return

  - `Prefix param.Field[string]`

    Filter expression (query param: prefix)

  - `SortOrder param.Field[string]`

    Sort order for results (asc or desc by creation time)

  - `Type param.Field[MemoryLayerListParamsType]`

    Filter by layer type

    - `const MemoryLayerListParamsTypeMemoryLayerTypeUnspecified MemoryLayerListParamsType = "MEMORY_LAYER_TYPE_UNSPECIFIED"`

    - `const MemoryLayerListParamsTypeMemoryLayerTypeEpisodic MemoryLayerListParamsType = "MEMORY_LAYER_TYPE_EPISODIC"`

    - `const MemoryLayerListParamsTypeMemoryLayerTypeSkills MemoryLayerListParamsType = "MEMORY_LAYER_TYPE_SKILLS"`

### Returns

- `type MemoryLayer struct{…}`

  MemoryLayer is a named container of memory entries that can be composed into
  an objective's memory stack. Layers are workspace-scoped resources. The layer
  type controls how its entries participate in the agent loop — see
  MemoryLayerType for details.

  Memory stacks are LIFO: when an objective resolves a key, layers are walked
  from the top of the stack downward, and the first matching entry wins.

  - `Metadata ResourceMetadata`

    Standard metadata for persistent, named resources (e.g., agents, tools, prompts)

    - `ID string`

      Unique identifier for the resource (prefixed ULID, e.g., "agent_01HXK...")

    - `AccountID string`

      Account this resource belongs to for multi-tenant isolation (prefixed ULID)

    - `CreatedAt Time`

      Timestamp when this resource was created

    - `Name string`

      Human-readable name for the resource (e.g., "Customer Support Agent", "Email Tool")
      Required for resources that users interact with directly

    - `ProfileID string`

      ID of the actor (user or service account) that created this resource

    - `WorkspaceID string`

      Workspace this resource belongs to for organizational grouping (prefixed ULID)

    - `ExternalID string`

      External ID for the resource (e.g., a workflow ID from an external system)

    - `Labels map[string, string]`

      Arbitrary key-value pairs for categorization and filtering
      Examples: {"environment": "production", "team": "platform", "version": "v2"}

  - `Spec MemoryLayerSpec`

    - `Type MemoryLayerSpecType`

      - `const MemoryLayerSpecTypeMemoryLayerTypeUnspecified MemoryLayerSpecType = "MEMORY_LAYER_TYPE_UNSPECIFIED"`

      - `const MemoryLayerSpecTypeMemoryLayerTypeEpisodic MemoryLayerSpecType = "MEMORY_LAYER_TYPE_EPISODIC"`

      - `const MemoryLayerSpecTypeMemoryLayerTypeSkills MemoryLayerSpecType = "MEMORY_LAYER_TYPE_SKILLS"`

    - `Description string`

      Human-readable description of the layer's purpose. Encouraged for
      user-created layers; system-managed layers may have a generated description.

    - `ExpiresAt Time`

      For layers with a finite lifetime (e.g., episodic), the time at which the
      layer becomes eligible for cleanup. Set by the system; unset for
      persistent layers.

    - `SystemManaged bool`

      Server-set. True for layers managed by the system (e.g., episodic layers
      created automatically when an objective uses an episodic_key). System-managed
      layers cannot be assigned to objective stacks via the API and cannot be
      mutated by clients — their lifecycle is controlled entirely by the runtime.

  - `Info MemoryLayerInfo`

    - `CreatedBy Profile`

      Profile represents a human user at the account level.
      Profiles are account-scoped resources that can be associated with multiple workspaces
      through the Actor model. Authentication for profiles is handled via SSO/OAuth (WorkOS).

      - `Metadata AccountResourceMetadata`

        AccountResourceMetadata is used to represent a resource that is associated to an account but not to a workspace.

        - `ID string`

          Unique identifier for the resource (prefixed ULID, e.g., "apikey_01HXK...")

        - `AccountID string`

          Account this resource belongs to for multi-tenant isolation (prefixed ULID)

        - `Name string`

          Human-readable name for the resource (e.g., "Customer Support Agent", "Email Tool")
          Required for resources that users interact with directly

        - `ProfileID string`

        - `ExternalID string`

          External ID for the resource (e.g., a workflow ID from an external system)

        - `Labels map[string, string]`

          Arbitrary key-value pairs for categorization and filtering
          Examples: {"environment": "production", "team": "platform", "version": "v2"}

      - `Spec ProfileSpec`

        ProfileSpec contains the profile-specific fields

        - `Type ProfileSpecType`

          Type is the type of profile. User's are humans, API keys are computers. You know the deal.

          - `const ProfileSpecTypeProfileTypeUser ProfileSpecType = "PROFILE_TYPE_USER"`

          - `const ProfileSpecTypeProfileTypeAPIKey ProfileSpecType = "PROFILE_TYPE_API_KEY"`

          - `const ProfileSpecTypeProfileTypeSystem ProfileSpecType = "PROFILE_TYPE_SYSTEM"`

        - `Email string`

          Email address of the user (required, unique per account)

        - `Name string`

          Display name for the user (e.g., "Bobby Tables")

    - `EntryCount int64`

      Number of entries currently in this layer.

    - `LastUsedAt Time`

      Timestamp of the most recent objective that resolved against this layer.
      Useful for surfacing unused layers in the dashboard.

### Example

```go
package main

import (
  "context"
  "fmt"

  "github.com/cadenya/cadenya-go"
  "github.com/cadenya/cadenya-go/option"
)

func main() {
  client := cadenya.NewClient(
    option.WithAPIKey("My API Key"),
  )
  page, err := client.MemoryLayers.List(context.TODO(), cadenya.MemoryLayerListParams{

  })
  if err != nil {
    panic(err.Error())
  }
  fmt.Printf("%+v\n", page)
}
```

#### Response

```json
{
  "items": [
    {
      "metadata": {
        "id": "id",
        "accountId": "accountId",
        "createdAt": "2019-12-27T18:11:19.117Z",
        "name": "name",
        "profileId": "profileId",
        "workspaceId": "workspaceId",
        "externalId": "externalId",
        "labels": {
          "foo": "string"
        }
      },
      "spec": {
        "type": "MEMORY_LAYER_TYPE_UNSPECIFIED",
        "description": "description",
        "expiresAt": "2019-12-27T18:11:19.117Z",
        "systemManaged": true
      },
      "info": {
        "createdBy": {
          "metadata": {
            "id": "id",
            "accountId": "accountId",
            "name": "name",
            "profileId": "profileId",
            "externalId": "externalId",
            "labels": {
              "foo": "string"
            }
          },
          "spec": {
            "type": "PROFILE_TYPE_USER",
            "email": "email",
            "name": "name"
          }
        },
        "entryCount": 0,
        "lastUsedAt": "2019-12-27T18:11:19.117Z"
      }
    }
  ],
  "pagination": {
    "nextCursor": "nextCursor",
    "total": 0
  }
}
```