List variations

GET/v1/workspaces/{workspaceId}/agents/{agentId}/variations

Lists all variations for an agent

Path ParametersExpand Collapse

workspaceId: string

agentId: string

Query ParametersExpand Collapse

bundleKey: optional string

Filter by bundle_key — return only resources owned by this bundle.

cursor: optional string

Pagination cursor from previous response

includeInfo: optional boolean

When true, the info field on each returned variation is populated. Requests with this flag count more against your rate limit.

limit: optional number

Maximum number of results to return

formatint32

sortOrder: optional string

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

ReturnsExpand Collapse

items: optional array of AgentVariation { metadata, spec, info }

metadata: ResourceMetadata { id, accountId, createdAt, 6 more }

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: string

Timestamp when this resource was created

formatdate-time

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)

bundleKey: optional string

Optional bundle ownership key. When set, indicates the resource is managed by a configuration bundle identified by this key. Used by BulkWorkspaceResources.Apply to track which resources belong to which bundle for reconciliation / soft-delete on re-apply.

externalId: optional string

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

labels: optional map[string]

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

spec: AgentVariationSpec { compactionConfig, constraints, description, 6 more }

AgentVariationSpec defines the operational configuration for a variation

compactionConfig: optional AgentVariationSpecCompactionConfig { summarization, toolResultClearing, triggerThreshold }

CompactionConfig defines how context window compaction behaves for objectives using this variation.

summarization: optional CompactionConfigSummarizationStrategy { instructions }

SummarizationStrategy configures LLM-powered summarization of older conversation turns.

instructions: optional string

Custom instructions that guide what the summarizer preserves. Replaces the default summarization prompt entirely. Example: “Preserve all code snippets, variable names, and technical decisions.”

toolResultClearing: optional CompactionConfigToolResultClearingStrategy { preserveRecentResults }

ToolResultClearingStrategy configures clearing of older tool result content.

preserveRecentResults: optional number

Number of most recent tool call results to keep intact. Older tool results have their content replaced with “[result cleared]” while preserving the assistant tool call message (function name, arguments). Default: 2

formatint32

triggerThreshold: optional number

Trigger threshold as a percentage of the model’s context window (0.0 to 1.0). When input tokens reach this percentage of the model’s limit, compaction triggers. Default: 0.75 (75%)

formatfloat

constraints: optional AgentVariationSpecConstraints { maxSubObjectives, maxToolCalls }

Execution constraints

maxSubObjectives: optional number

The maximum number of sub-objectives that can be created. 0 means no limit.

formatint32

maxToolCalls: optional number

The maximum number of tool calls that can be made. 0 means no limit.

formatint32

description: optional string

Human-readable description of what this variation does or when it should be used

enableEpisodicMemory: optional boolean

Enable episodic memory for objectives using this variation. When true, the system automatically creates a document namespace for each objective using the objective’s episodic_key as the external_id, allowing the agent to store and retrieve documents specific to that episode.

episodicMemoryTtl: optional number

How long episodic memories should be retained. After this duration, episodic document namespaces can be automatically cleaned up. If not set, episodic memories are retained indefinitely.

modelConfig: optional AgentVariationSpecModelConfig { modelId, temperature }

ModelConfig defines the model configuration for a variation

modelId: optional string

The model identifier in family/model format (e.g., “claude/opus-4.6”, “claude/sonnet-4.5”)

temperature: optional number

Sampling temperature for model inference (0.0 to 1.0) Lower values produce more deterministic outputs, higher values increase randomness

formatfloat

progressiveDiscovery: optional AgentVariationSpecProgressiveDiscovery { hints, maxTools, rerankThreshold }

ProgressiveDiscovery is used to indicate that the agent should automatically discover tools that are not explicitly assigned to it. Max tools is the maximum number of tools that can be discovered per search. Hints are optional hints for tool search. These are used in conjunction with the context-aware tool search and can help select the best tools for the task.

hints: optional array of string

maxTools: optional number

rerankThreshold: optional number

Rerank Threshold is an optional value that instructs whether or not to run a search result through a embedding/reranker process which can improve performance and reduce context bloat when tools reach the configured threshold. If a tool match must exceed 0.8, for example, the tool very closely match the query the tool search performed.

formatfloat

prompt: optional string

The system prompt for this variation

weight: optional number

Weight for weighted random selection (>= 0). P(v) = v.weight / sum(all_weights). Only used when the agent’s variation_selection_mode is WEIGHTED. A weight of 0 means never auto-selected, but can still be chosen explicitly via variation_id on CreateObjectiveRequest.

formatint32

info: optional AgentVariationInfo { assignments, createdBy, feedbackCount, 7 more }

AgentVariationInfo provides read-only summary information about a variation

assignments: optional array of VariationAssignment { id, agent, tool, toolSet }

All tools, tool sets, and sub-agents assigned to this variation. Populated on reads so clients can render a variation’s full assignment list without calling the add/remove endpoints just to enumerate.

id: optional string

agent: optional BareMetadata { id, name }

BareMetadata contains the minimal metadata for a resource: the ID and an optional human-readable name. These are used for reference fields where the full metadata (account scoping, timestamps, labels, external IDs) is not needed — e.g., the tool references inside an agent variation spec or the tools assigned to an objective. Both fields are server-populated; clients provide IDs through sibling fields rather than by constructing a BareMetadata themselves.

id: optional string

Human-readable name of the referenced resource, populated by the server on reads for convenience. Absent on references to resources that do not have a name (e.g., objective tasks).

tool: optional BareMetadata { id, name }

id: optional string

Human-readable name of the referenced resource, populated by the server on reads for convenience. Absent on references to resources that do not have a name (e.g., objective tasks).

toolSet: optional BareMetadata { id, name }

id: optional string

Human-readable name of the referenced resource, populated by the server on reads for convenience. Absent on references to resources that do not have a name (e.g., objective tasks).

createdBy: optional Profile { metadata, spec }

A profile identifies a user or non-human principal (such as an API key) at the account level. Profiles are account-scoped and can be granted access to multiple workspaces.

metadata: AccountResourceMetadata { id, accountId, name, 3 more }

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)

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

profileId: string

externalId: optional string

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

labels: optional map[string]

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

spec: ProfileSpec { type, email, name }

Configuration for a profile.

type: "PROFILE_TYPE_UNSPECIFIED" or "PROFILE_TYPE_USER" or "PROFILE_TYPE_API_KEY" or "PROFILE_TYPE_SYSTEM"

Whether this profile represents a human user, an API key, or a system principal.

formatenum

One of the following:

"PROFILE_TYPE_UNSPECIFIED"

"PROFILE_TYPE_USER"

"PROFILE_TYPE_API_KEY"

"PROFILE_TYPE_SYSTEM"

email: optional string

Email address of the profile. Required and unique within an account for user profiles.

Display name (e.g., “Bobby Tables”).

feedbackCount: optional number

Total number of objective feedbacks received for this variation

formatint32

memoryLayerAssignments: optional array of VariationMemoryLayerAssignment { id, memoryLayer, position }

Read-only list of memory layer assignments for this variation, returned in ascending position (bottom → top). Capped at 10 entries.

id: optional string

Assignment row id — handle for removing the assignment. Distinct from the referenced memory layer’s id.

memoryLayer: optional BareMetadata { id, name }

id: optional string

Human-readable name of the referenced resource, populated by the server on reads for convenience. Absent on references to resources that do not have a name (e.g., objective tasks).

position: optional number

Position in the variation’s baseline stack. Lower values sit lower; the highest-position assignment is on top of the variation’s baseline. Gaps are fine — only relative position matters. Positions must be unique within a variation; a request that would collide with an existing assignment’s position is rejected with InvalidArgument.

formatint32

memoryLayerCount: optional number

Count of memory layer assignments.

formatint32

model: optional ResourceMetadata { id, accountId, createdAt, 6 more }

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: string

Timestamp when this resource was created

formatdate-time

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)

bundleKey: optional string

externalId: optional string

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

labels: optional map[string]

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

score: optional number

Thompson Sampling score: posterior mean of Beta(ts_alpha, ts_beta). Range [0, 1] where 0.5 = neutral, >0.5 = positive, <0.5 = negative.

formatfloat

subAgentCount: optional number

Number of sub-agents assigned to this variation

formatint32

toolCount: optional number

Number of individual tools assigned to this variation

formatint32

toolSetCount: optional number

Number of tool sets assigned to this variation

formatint32

pagination: optional Page { nextCursor, total }

nextCursor: optional string

total: optional number

List variations

curl https://api.cadenya.com/v1/workspaces/$WORKSPACE_ID/agents/$AGENT_ID/variations \
    -H "Authorization: Bearer $CADENYA_API_KEY"

{
  "items": [
    {
      "metadata": {
        "id": "id",
        "accountId": "accountId",
        "createdAt": "2019-12-27T18:11:19.117Z",
        "name": "name",
        "profileId": "profileId",
        "workspaceId": "workspaceId",
        "bundleKey": "bundleKey",
        "externalId": "externalId",
        "labels": {
          "foo": "string"
        }
      },
      "spec": {
        "compactionConfig": {
          "summarization": {
            "instructions": "instructions"
          },
          "toolResultClearing": {
            "preserveRecentResults": 0
          },
          "triggerThreshold": 0
        },
        "constraints": {
          "maxSubObjectives": 0,
          "maxToolCalls": 0
        },
        "description": "description",
        "enableEpisodicMemory": true,
        "episodicMemoryTtl": 0,
        "modelConfig": {
          "modelId": "modelId",
          "temperature": 0
        },
        "progressiveDiscovery": {
          "hints": [
            "string"
          ],
          "maxTools": 0,
          "rerankThreshold": 0
        },
        "prompt": "prompt",
        "weight": 0
      },
      "info": {
        "assignments": [
          {
            "id": "id",
            "agent": {
              "id": "id",
              "name": "name"
            },
            "tool": {
              "id": "id",
              "name": "name"
            },
            "toolSet": {
              "id": "id",
              "name": "name"
            }
          }
        ],
        "createdBy": {
          "metadata": {
            "id": "id",
            "accountId": "accountId",
            "name": "name",
            "profileId": "profileId",
            "externalId": "externalId",
            "labels": {
              "foo": "string"
            }
          },
          "spec": {
            "type": "PROFILE_TYPE_UNSPECIFIED",
            "email": "email",
            "name": "name"
          }
        },
        "feedbackCount": 0,
        "memoryLayerAssignments": [
          {
            "id": "id",
            "memoryLayer": {
              "id": "id",
              "name": "name"
            },
            "position": 0
          }
        ],
        "memoryLayerCount": 0,
        "model": {
          "id": "id",
          "accountId": "accountId",
          "createdAt": "2019-12-27T18:11:19.117Z",
          "name": "name",
          "profileId": "profileId",
          "workspaceId": "workspaceId",
          "bundleKey": "bundleKey",
          "externalId": "externalId",
          "labels": {
            "foo": "string"
          }
        },
        "score": 0,
        "subAgentCount": 0,
        "toolCount": 0,
        "toolSetCount": 0
      }
    }
  ],
  "pagination": {
    "nextCursor": "nextCursor",
    "total": 0
  }
}

Returns Examples

{
  "items": [
    {
      "metadata": {
        "id": "id",
        "accountId": "accountId",
        "createdAt": "2019-12-27T18:11:19.117Z",
        "name": "name",
        "profileId": "profileId",
        "workspaceId": "workspaceId",
        "bundleKey": "bundleKey",
        "externalId": "externalId",
        "labels": {
          "foo": "string"
        }
      },
      "spec": {
        "compactionConfig": {
          "summarization": {
            "instructions": "instructions"
          },
          "toolResultClearing": {
            "preserveRecentResults": 0
          },
          "triggerThreshold": 0
        },
        "constraints": {
          "maxSubObjectives": 0,
          "maxToolCalls": 0
        },
        "description": "description",
        "enableEpisodicMemory": true,
        "episodicMemoryTtl": 0,
        "modelConfig": {
          "modelId": "modelId",
          "temperature": 0
        },
        "progressiveDiscovery": {
          "hints": [
            "string"
          ],
          "maxTools": 0,
          "rerankThreshold": 0
        },
        "prompt": "prompt",
        "weight": 0
      },
      "info": {
        "assignments": [
          {
            "id": "id",
            "agent": {
              "id": "id",
              "name": "name"
            },
            "tool": {
              "id": "id",
              "name": "name"
            },
            "toolSet": {
              "id": "id",
              "name": "name"
            }
          }
        ],
        "createdBy": {
          "metadata": {
            "id": "id",
            "accountId": "accountId",
            "name": "name",
            "profileId": "profileId",
            "externalId": "externalId",
            "labels": {
              "foo": "string"
            }
          },
          "spec": {
            "type": "PROFILE_TYPE_UNSPECIFIED",
            "email": "email",
            "name": "name"
          }
        },
        "feedbackCount": 0,
        "memoryLayerAssignments": [
          {
            "id": "id",
            "memoryLayer": {
              "id": "id",
              "name": "name"
            },
            "position": 0
          }
        ],
        "memoryLayerCount": 0,
        "model": {
          "id": "id",
          "accountId": "accountId",
          "createdAt": "2019-12-27T18:11:19.117Z",
          "name": "name",
          "profileId": "profileId",
          "workspaceId": "workspaceId",
          "bundleKey": "bundleKey",
          "externalId": "externalId",
          "labels": {
            "foo": "string"
          }
        },
        "score": 0,
        "subAgentCount": 0,
        "toolCount": 0,
        "toolSetCount": 0
      }
    }
  ],
  "pagination": {
    "nextCursor": "nextCursor",
    "total": 0
  }
}