> ## Documentation Index > Fetch the complete documentation index at: https://cadenya.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # List objective tools > The tools an agent has in one run, resolved and frozen. Not the same as the tool set's rows. What the agent can call **in this objective**, resolved at run time. This is the answer to "why did the agent not use that tool?", and it is not the same list as the [tool set](/docs/api-reference/toolservice/list-tools) the tools came from. ```typescript TypeScript theme={null} const tools = await client.objectives.tools.list(objectiveId, { workspaceId }); for await (const tool of tools) { console.log(tool.snapshot.metadata.name); } // GetFakerOptions // GenerateFake ``` ```go Go theme={null} tools := client.Objectives.Tools.ListAutoPaging(ctx, objectiveID, cadenya.ObjectiveToolListParams{WorkspaceID: cadenya.String(workspaceID)}) for tools.Next() { fmt.Println(tools.Current().Snapshot.Metadata.Name) } // GetFakerOptions // GenerateFake ``` ```ruby Ruby theme={null} tools = cadenya.objectives.tools.list(objective_id, workspace_id: workspace_id) tools.auto_paging_each do |tool| puts tool.snapshot.metadata.name end # GetFakerOptions # GenerateFake ``` ```bash cURL theme={null} curl "https://api.cadenya.com/v1/workspaces/${WORKSPACE_ID}/objectives/${OBJECTIVE_ID}/tools" \ -H "Authorization: Bearer ${CADENYA_API_KEY}" ``` Each item is a context-window tool: `metadata` with a `cwt_...` id, and `snapshot`, a frozen copy of the tool's full definition (`description`, `parameters`, `requiresApproval`, `config`, `llmToolName`). The snapshot is why the objective is stable, the agent runs against the tool as it was, not as it is now. ## Resolved, not raw The set of tools here is the tool set's rows after resolution, so it can be shorter than the set: * **Deduplicated.** Two rows with the same tool name collapse to one the agent sees. * **Filtered.** A tool an adapter's `excludeTools` removes does not load, even if its row still reads `STATE_AVAILABLE` in the set. This endpoint reflects what the filter did. * **Assigned only.** Only tools from tool sets [assigned](/docs/api-reference/agentvariationservice/add-an-assignment-to-a-variation) to the serving variation are here. So when a set shows five rows and the agent used two, this is where you confirm the agent had only those two. The tool set's tool list tells you what exists; this tells you what the agent got. ## Progressive discovery adds to it If the variation uses [progressive discovery](/docs/guides/preventing-tool-bloat), the agent starts with a small tool list and the `tool_search` built-in loads more into the run on demand. Those later-loaded tools appear here too, so this list grows over an objective's life. Read it after the run to see the full set the agent ended up with, not only what it began with. ## Related The tool set's rows, before resolution. Which of these tools the agent called. Progressive discovery, which grows this list mid-run. `excludeTools`, which shortens this list. ## OpenAPI ````yaml get /v1/workspaces/{workspaceId}/objectives/{objectiveId}/tools openapi: 3.1.0 info: title: Cadenya API description: API for the Cadenya Agent Runtime platform. version: '1.0' servers: - url: https://api.cadenya.com description: Production server security: - bearerAuth: [] tags: - name: AIProviderKeyService - name: APIKeyService description: |- Issue, rotate, disable, and revoke a workspace's API keys. Every key belongs to exactly one workspace; the system-managed global account key is managed via GlobalAPIKeyService instead. - name: AccountService description: >- Manage the authenticated account. Accounts are the top-level organizational unit and contain one or more workspaces. - name: AgentScheduleService description: >- Manage recurring schedules attached to agents. Schedules trigger objectives on a cadence defined by AgentScheduleSpec.Schedule. - name: AgentService description: >- Manage AI agents within a workspace. Agents define AI behavior and tool access. - name: AgentVariationService description: >- Manage variations of an agent and their tool, sub-agent, and memory layer assignments. - name: GlobalAPIKeyService description: |- Manage the account's system-provisioned global API key. The global key is the only key that spans every workspace; it is created by the system and cannot be deleted, so the surface is retrieve, rotate, and the disable/enable kill switch. - name: MemoryService description: >- Manage memory layers and their entries. Layers are named containers that can be composed into an objective's memory cascade; entries are the keyed values within a layer. System-managed layers (e.g., episodic layers created by the runtime) cannot be mutated through this API. - name: ModelService description: |- Manage LLM models available to a workspace. Models represent provider and family pairs (e.g., "anthropic/claude-sonnet-4.6"). Workspaces are seeded with the supported models and you can enable or disable each one. - name: ObjectiveEventStreamsService - name: ObjectiveService - name: ProfilesService description: |- Operations on profiles, the account-level principals (users, API keys, system) that authenticate against the API. - name: SearchService - name: TenantService description: >- Read and erase tenants and the subjects under them. Tenants and subjects are created by assertion — on objective creation or widget session mint — never directly, so this service has no create or update: it exists to enumerate what assertions have produced, and to destroy it on request. - name: ToolService description: >- Manage tool sets and the tools they contain. Tool sets group related tools, and tools define specific capabilities available to agents. When a tool set is managed, only API key actors can modify its tools; human (profile) actors cannot. - name: UploadService description: |- Issue short-lived presigned URLs for direct client-to-object-storage uploads. Created uploads can be referenced by id when creating or updating resources that accept binary content (e.g., MemoryEntry). - name: WidgetService description: |- Manage embeddable chat widgets. A widget binds an agent to a globally unique hostname with a per-widget origin allowlist; browsers reach it with session tokens minted via WidgetSessionService. - name: WidgetSessionService description: >- Mint and manage widget sessions. Session creation is server-to-server only: the customer's backend authenticates its visitor, asserts tenant/subject context, attaches any per-visitor secrets, and receives a short-lived bearer token the browser uses against the widget host. - name: WorkspaceAdminService description: >- Administer workspaces across the account: create and archive workspaces and manage their membership. These operations are account-scoped and require the admin role (a token whose profile holds the WorkOS admin role); they live under /v1/account/workspaces rather than the workspace-scoped /v1/workspaces tree so an admin can manage any workspace in the account, including ones they are not themselves a member of. - name: WorkspaceSecretService - name: WorkspaceService description: |- Manage workspaces within an account. Workspaces provide organizational grouping and isolation for resources such as agents, tools, and API keys. This is the workspace-scoped, end-user surface. Administrative operations (create / archive workspaces, manage members) live in WorkspaceAdminService under /v1/account/workspaces and require the admin role. paths: /v1/workspaces/{workspaceId}/objectives/{objectiveId}/tools: get: tags: - ObjectiveService - Objectives summary: List objective tools description: Lists all tools that were assigned to an objective operationId: ObjectiveService_ListObjectiveTools parameters: - name: workspaceId in: path required: true schema: type: string example: workspace_01HXKD2E5NQM3T9AYWCF133E3Q - name: objectiveId in: path description: >- The ID of the objective. Supports "external_id:" prefix for external IDs. required: true schema: example: obj_01HXKD2E5NQM3T9AYWCFQAZGFV type: string - name: limit in: query description: Maximum number of results to return schema: type: integer format: int32 - name: cursor in: query description: Pagination cursor from previous response schema: type: string responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/ListObjectiveToolsResponse' default: description: Default error response content: application/json: schema: $ref: '#/components/schemas/Status' x-codeSamples: - lang: JavaScript source: >- import Cadenya from '@cadenya/cadenya'; const client = new Cadenya({ apiKey: process.env['CADENYA_API_KEY'], // This is the default and can be omitted }); // Automatically fetches more pages as needed. for await (const objectiveTool of client.objectives.tools.list('obj_01HXKD2E5NQM3T9AYWCFQAZGFV', { workspaceId: 'workspace_01HXKD2E5NQM3T9AYWCF133E3Q', })) { console.log(objectiveTool.metadata); } - lang: Python source: |- import os from cadenya import Cadenya client = Cadenya( api_key=os.environ.get("CADENYA_API_KEY"), # This is the default and can be omitted ) page = client.objectives.tools.list( objective_id="obj_01HXKD2E5NQM3T9AYWCFQAZGFV", workspace_id="workspace_01HXKD2E5NQM3T9AYWCF133E3Q", ) page = page.items[0] print(page.metadata) - lang: Go source: "package main\n\nimport (\n\t\"context\"\n\t\"fmt\"\n\t\"go.cadenya.com/cadenya-go\"\n\t\"go.cadenya.com/cadenya-go/option\"\n)\n\nfunc main() {\n\tclient := cadenya.NewClient(\n\t\toption.WithAPIKey(\"My API Key\"),\n\t)\n\tpage, err := client.Objectives.Tools.List(\n\t\tcontext.TODO(),\n\t\t\"obj_01HXKD2E5NQM3T9AYWCFQAZGFV\",\n\t\tcadenya.ObjectiveToolListParams{\n\t\t\tWorkspaceID: cadenya.String(\"workspace_01HXKD2E5NQM3T9AYWCF133E3Q\"),\n\t\t},\n\t)\n\tif err != nil {\n\t\tpanic(err.Error())\n\t}\n\tfmt.Printf(\"%+v\\n\", page)\n}\n" - lang: Ruby source: |- require "cadenya" cadenya = Cadenya::Client.new(api_key: "My API Key") page = cadenya.objectives.tools.list( "obj_01HXKD2E5NQM3T9AYWCFQAZGFV", workspace_id: "workspace_01HXKD2E5NQM3T9AYWCF133E3Q" ) puts(page) - lang: CLI source: |- cadenya objectives:tools list \ --api-key 'My API Key' \ --workspace-id workspace_01HXKD2E5NQM3T9AYWCF133E3Q \ --objective-id obj_01HXKD2E5NQM3T9AYWCFQAZGFV components: schemas: ListObjectiveToolsResponse: type: object properties: items: type: array items: $ref: '#/components/schemas/ObjectiveTool' pagination: $ref: '#/components/schemas/Page' Status: type: object properties: code: type: integer description: >- The status code, which should be an enum value of [google.rpc.Code][google.rpc.Code]. format: int32 message: type: string description: >- A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the [google.rpc.Status.details][google.rpc.Status.details] field, or localized by the client. details: type: array items: $ref: '#/components/schemas/GoogleProtobufAny' description: >- A list of messages that carry the error details. There is a common set of message types for APIs to use. description: >- The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by [gRPC](https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the [API Design Guide](https://cloud.google.com/apis/design/errors). ObjectiveTool: required: - metadata type: object properties: metadata: $ref: '#/components/schemas/BareMetadata' snapshot: allOf: - $ref: '#/components/schemas/Tool' description: >- Snapshot of the tool at the time it was assigned to the objective. Because tools can change over time, snapshots are used to ensure tools don't change unexpectedly during an objective's lifecycle. description: ObjectiveTool represents a tool that was assigned to an objective. Page: type: object properties: nextCursor: type: string description: >- Page carries cursor-based pagination state. There is no total: the cursor walks the result set without ever counting it, and a count would cost a second query on every list. GoogleProtobufAny: type: object properties: '@type': type: string description: The type of the serialized message. additionalProperties: true description: >- Contains an arbitrary serialized message along with a @type that describes the type of the serialized message. BareMetadata: type: object properties: id: readOnly: true type: string name: readOnly: true type: string description: >- 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). description: |- 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. Tool: required: - metadata - spec - state type: object properties: metadata: $ref: '#/components/schemas/ResourceMetadata' spec: $ref: '#/components/schemas/ToolSpec' info: $ref: '#/components/schemas/ToolInfo' state: readOnly: true enum: - STATE_UNSPECIFIED - STATE_AVAILABLE - STATE_OMITTED - STATE_ARCHIVED type: string description: >- The current lifecycle state of the tool. Output only. Use the :omit and :restore actions to transition; tool set syncs may also update it. format: enum ResourceMetadata: required: - id - accountId - workspaceId - name - profileId - createdAt type: object properties: id: readOnly: true type: string description: >- Unique identifier for the resource (prefixed ULID, e.g., "agent_01HXK...") accountId: readOnly: true example: account_01HXKD2E5NQM3T9AYWCFTJHJVF type: string description: >- Account this resource belongs to for multi-tenant isolation (prefixed ULID) workspaceId: readOnly: true example: workspace_01HXKD2E5NQM3T9AYWCF133E3Q type: string description: >- Workspace this resource belongs to for organizational grouping (prefixed ULID) name: type: string description: >- Human-readable name for the resource (e.g., "Customer Support Agent", "Email Tool") Required for resources that users interact with directly externalId: type: string description: >- External ID for the resource (e.g., a workflow ID from an external system) labels: type: object additionalProperties: type: string description: |- Key-value pairs for categorization and filtering. Values are 0-63 alphanumeric characters with "-", "_", or "." allowed between; keys follow the same shape and additionally accept an optional DNS-subdomain prefix (e.g. "cadenya.com/") of at most 253 characters. Examples: {"environment": "production", "team": "platform", "version": "v2"} profileId: readOnly: true example: profile_01HXKD2E5NQM3T9AYWCFS0AP08 type: string description: ID of the actor (user or service account) that created this resource createdAt: readOnly: true type: string description: Timestamp when this resource was created format: date-time updatedAt: readOnly: true type: string description: Timestamp when this resource was last updated format: date-time description: >- Standard metadata for persistent, named resources (e.g., agents, tools, prompts) ToolSpec: required: - description - parameters - config - requiresApproval type: object properties: description: type: string requiresApproval: type: boolean parameters: type: object additionalProperties: true description: >- The tool's JSON Schema, as handed to the LLM. Required, but may be the empty object `{}` for a tool that takes no arguments. Requiring it rather than defaulting it means a misspelled field name (`inputSchema`, say) is a 400 instead of a silently parameterless tool. config: allOf: - $ref: '#/components/schemas/ToolSpec_Config' description: >- Configuration for this specific tool. Transport/Protocol are derived from the tool set adapter, while specifics such as endpoint, method, etc, are stored on the tool itself. Required, and exactly one adapter must be set. llmToolName: type: string description: >- The name provided to the LLM, which may differ from the metadata.name on the tool. LLMs have specific length and format requirements, and tool set sources may not comply with them, so Cadenya does its best to format names into a usable format. ToolInfo: type: object properties: toolSet: $ref: '#/components/schemas/ResourceMetadata' createdBy: $ref: '#/components/schemas/Profile' signature: readOnly: true type: string description: >- Content signature identifying the tool within its tool set: a hash of the sanitized llm_tool_name, description, and canonical parameters. Two tools with the same llm_tool_name but different parameters or description (as MCP servers may return per user) have distinct signatures. ToolSpec_Config: oneOf: - $ref: '#/components/schemas/ToolSpec_Config_Http' - $ref: '#/components/schemas/ToolSpec_Config_Mcp' - $ref: '#/components/schemas/ToolSpec_Config_Openapi' - $ref: '#/components/schemas/ToolSpec_Config_Bare' discriminator: propertyName: type mapping: http: $ref: '#/components/schemas/ToolSpec_Config_Http' mcp: $ref: '#/components/schemas/ToolSpec_Config_Mcp' openapi: $ref: '#/components/schemas/ToolSpec_Config_Openapi' bare: $ref: '#/components/schemas/ToolSpec_Config_Bare' description: |- Config defines the adapter to use for the tool. This is used to determine how the tool is called. For example, if the tool is an HTTP tool, the adapter will be Http. If the tool is an inline tool, the adapter will be Inline. Profile: required: - metadata - spec type: object properties: metadata: $ref: '#/components/schemas/AccountResourceMetadata' spec: $ref: '#/components/schemas/ProfileSpec' description: |- 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. ToolSpec_Config_Http: type: object required: - type - http properties: type: type: string enum: - http http: $ref: '#/components/schemas/Config_HTTP' ToolSpec_Config_Mcp: type: object required: - type - mcp properties: type: type: string enum: - mcp mcp: $ref: '#/components/schemas/Config_MCP' ToolSpec_Config_Openapi: type: object required: - type - openapi properties: type: type: string enum: - openapi openapi: $ref: '#/components/schemas/Config_OpenAPI' ToolSpec_Config_Bare: type: object required: - type - bare properties: type: type: string enum: - bare bare: $ref: '#/components/schemas/Config_Bare' AccountResourceMetadata: required: - id - accountId - name - profileId type: object properties: id: readOnly: true type: string description: >- Unique identifier for the resource (prefixed ULID, e.g., "apikey_01HXK...") accountId: readOnly: true example: account_01HXKD2E5NQM3T9AYWCFTJHJVF type: string description: >- Account this resource belongs to for multi-tenant isolation (prefixed ULID) name: type: string description: >- Human-readable name for the resource (e.g., "Customer Support Agent", "Email Tool") Required for resources that users interact with directly externalId: type: string description: >- External ID for the resource (e.g., a workflow ID from an external system) labels: type: object additionalProperties: type: string description: |- Key-value pairs for categorization and filtering. Values are 0-63 alphanumeric characters with "-", "_", or "." allowed between; keys follow the same shape and additionally accept an optional DNS-subdomain prefix (e.g. "cadenya.com/") of at most 253 characters. Examples: {"environment": "production", "team": "platform", "version": "v2"} profileId: readOnly: true example: profile_01HXKD2E5NQM3T9AYWCFS0AP08 type: string createdAt: readOnly: true type: string format: date-time description: >- AccountResourceMetadata is used to represent a resource that is associated to an account but not to a workspace. ProfileSpec: required: - type type: object properties: email: type: string description: >- Email address of the profile. Required and unique within an account for user profiles. name: type: string description: Display name (e.g., "Bobby Tables"). type: enum: - PROFILE_TYPE_UNSPECIFIED - PROFILE_TYPE_USER - PROFILE_TYPE_API_KEY - PROFILE_TYPE_SYSTEM type: string description: >- Whether this profile represents a human user, an API key, or a system principal. format: enum description: Configuration for a profile. Config_HTTP: required: - requestMethod type: object properties: requestMethod: enum: - HTTP_METHOD_UNSPECIFIED - GET - POST - PUT - PATCH - DELETE type: string format: enum path: type: string query: type: string headers: type: object additionalProperties: type: string requestBodyTemplate: type: string description: These are only used when the request method is a POST, PUT, or PATCH requestBodyContentType: type: string Config_MCP: type: object properties: annotations: allOf: - $ref: '#/components/schemas/MCP_Annotations' description: Tool behavior annotations from the MCP server, captured during sync. Config_OpenAPI: type: object properties: path: type: string method: type: string Config_Bare: type: object properties: {} description: |- Marks the tool as bare: it has no execution adapter of its own and relies on the parent tool set being a Bare tool set. Present so a webhook consumer can tell a tool is bare from the tool data alone, without cross-referencing the tool set. x-stainless-empty-object: true MCP_Annotations: type: object properties: title: type: string description: A human-readable title for the tool. readOnlyHint: type: boolean description: If true, the tool does not modify its environment. destructiveHint: type: boolean description: >- If true, the tool may perform destructive updates to its environment. Only meaningful when read_only_hint is false. idempotentHint: type: boolean description: |- If true, calling the tool repeatedly with the same arguments has no additional effect. Only meaningful when read_only_hint is false. openWorldHint: type: boolean description: |- If true, the tool may interact with an "open world" of external entities (e.g. web search); if false, its domain is closed. description: |- Behavior hints synced from the MCP server's tool definition (ToolAnnotations in the MCP specification). All hints are advisory: servers are not required to send them, and clients should not rely on them for security decisions. Absent hints keep the MCP spec defaults (destructiveHint and openWorldHint default to true; readOnlyHint and idempotentHint default to false). securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT ````