--- title: List Sessions url: https://platform.claude.com/docs/en/api/cli/beta/sessions/list --- # List Sessions `$ ant beta:sessions list` **GET** `/v1/sessions` List Sessions ## Parameters - `--agent-id: optional string` (query parameter) Filter sessions created with this agent ID. - `--agent-version: optional number` (query parameter) Filter by agent version. Only applies when `agent_id` is also set. format: int32 - `--created-at-gt: optional string` (query parameter) Return sessions created after this time (exclusive). format: date-time - `--created-at-gte: optional string` (query parameter) Return sessions created at or after this time (inclusive). format: date-time - `--created-at-lt: optional string` (query parameter) Return sessions created before this time (exclusive). format: date-time - `--created-at-lte: optional string` (query parameter) Return sessions created at or before this time (inclusive). format: date-time - `--deployment-id: optional string` (query parameter) Filter sessions created by this deployment ID. - `--include-archived: optional boolean` (query parameter) When true, includes archived sessions. Default: false (exclude archived). - `--limit: optional number` (query parameter) Maximum number of results to return. format: int32 - `--memory-store-id: optional string` (query parameter) Filter sessions whose resources contain a `memory_store` with this memory store ID. - `--order: optional "asc" or "desc"` (query parameter) Sort direction for results, ordered by `created_at`. Defaults to `desc` (newest first). - `--page: optional string` (query parameter) Opaque pagination cursor from a previous response. - `--status: optional array of "rescheduling" or "running" or "idle" or "terminated"` (query parameter) Filter by session status. Repeat the parameter to match any of multiple statuses. - `--beta: optional array of AnthropicBeta` (header parameter) This endpoint is in beta: requests must send `managed-agents-2026-04-01` in this header. - `--workspace-id: optional string` (header parameter) Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`). Only needed for credentials that can act on more than one Workspace. A credential that belongs to a specific Workspace may omit it; if sent, it must match that Workspace. ## Returns - `BetaManagedAgentsListSessions: object` Paginated list of sessions. - `data: optional array of BetaManagedAgentsSession` List of sessions. - `type: "session"` - `id: string` - `agent: object` Resolved `agent` definition for a `session`. Snapshot of the `agent` at `session` creation time. - `type: "agent"` - `id: string` - `description: string` - `execution_identity: BetaManagedAgentsAWSRoleExecutionIdentity or BetaManagedAgentsServiceAccountExecutionIdentity` Execution principal snapshotted from the agent at session creation. Always present; `{"type": "service_account"}` when runs carry no customer-named principal. - `beta_managed_agents_aws_role_execution_identity: object` An AWS IAM role principal as returned in API responses. - `type: "aws_role"` - `role_arn: string` The IAM role's ARN. - `beta_managed_agents_service_account_execution_identity: object` The Anthropic-managed service account as returned in API responses. - `type: "service_account"` - `mcp_servers: array of BetaManagedAgentsMCPServerURLDefinition` - `type: "url"` - `name: string` - `url: string` - `model: object` Model identifier and configuration. - `id: "claude-haiku-5-5" or "claude-sonnet-5-5" or "claude-opus-5-5" or 14 more or string` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options. - `"claude-haiku-5-5"` Fastest model for high-volume, real-time tasks - `"claude-sonnet-5-5"` Efficient model for coding and agents - `"claude-opus-5-5"` Powerful intelligence for coding, knowledge work, and long-running agents - `"claude-fable-5-1"` Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows - `"claude-sonnet-5"` Efficient model for coding and agents - `"claude-fable-5"` Next generation of intelligence for the hardest knowledge work and coding problems - `"claude-opus-5"` Powerful intelligence for long-running agents and coding - `"claude-opus-4-8"` Powerful intelligence for long-running agents and coding - `"claude-opus-4-7"` Powerful intelligence for long-running agents and coding - `"claude-opus-4-6"` Powerful intelligence for long-running agents and coding - `"claude-sonnet-4-6"` Best combination of speed and intelligence - `"claude-haiku-4-5"` - `"claude-haiku-4-5-20251001"` - `"claude-opus-4-5"` Powerful intelligence for long-running agents and coding - `"claude-opus-4-5-20251101"` Powerful intelligence for long-running agents and coding - `"claude-sonnet-4-5"` **Deprecated**: Will reach end-of-life on November 30, 2026. Please migrate to claude-sonnet-5-5. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information. High-performance model for agents and coding - `"claude-sonnet-4-5-20250929"` **Deprecated**: Will reach end-of-life on November 30, 2026. Please migrate to claude-sonnet-5-5. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information. High-performance model for agents and coding - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more` How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied. - `beta_managed_agents_effort_low: object` Low effort. Favors latency over reasoning depth. - `type: "low"` - `beta_managed_agents_effort_medium: object` Medium effort. Balances latency and reasoning depth. - `type: "medium"` - `beta_managed_agents_effort_high: object` High effort. Favors reasoning depth. - `type: "high"` - `beta_managed_agents_effort_xhigh: object` Extra-high effort. Not all models accept this level. - `type: "xhigh"` - `beta_managed_agents_effort_max: object` Maximum effort. Favors reasoning depth over latency. - `type: "max"` - `inference_geo: optional string` Geographic region for model inference. When unset, requests fall through to the workspace's default_inference_geo. - `speed: optional "standard" or "fast"` Inference speed mode. `fast` provides significantly faster output token generation at premium pricing. Defaults to `standard`. Not all models support `fast`; invalid combinations are rejected at create time. - `"standard"` - `"fast"` - `multiagent: BetaManagedAgentsSessionMultiagentCoordinator or BetaManagedAgentsSessionMultiagent20261001` Resolved multiagent orchestration configuration. Null when the agent is single-threaded. - `beta_managed_agents_session_multiagent_coordinator: object` Resolved coordinator topology with full agent definitions for each roster member. - `type: "coordinator"` - `agents: array of BetaManagedAgentsSessionThreadAgent or BetaManagedAgentsAdvisor` Full `agent` definitions the coordinator may spawn as session threads. - `beta_managed_agents_session_thread_agent: object` Resolved `agent` definition for a single `session_thread`. Snapshot of the agent at thread creation time. The multiagent roster is not repeated here; read it from `Session.agent`. - `type: "agent"` - `id: string` - `description: string` - `execution_identity: BetaManagedAgentsAWSRoleExecutionIdentity or BetaManagedAgentsServiceAccountExecutionIdentity` Execution principal snapshotted from the agent at session creation. Always present; `{"type": "service_account"}` when runs carry no customer-named principal. - `beta_managed_agents_aws_role_execution_identity: object` An AWS IAM role principal as returned in API responses. - `beta_managed_agents_service_account_execution_identity: object` The Anthropic-managed service account as returned in API responses. - `mcp_servers: array of BetaManagedAgentsMCPServerURLDefinition` - `type: "url"` - `name: string` - `url: string` - `model: object` Model identifier and configuration. - `id: "claude-haiku-5-5" or "claude-sonnet-5-5" or "claude-opus-5-5" or 14 more or string` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options. - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more` How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied. - `inference_geo: optional string` Geographic region for model inference. When unset, requests fall through to the workspace's default_inference_geo. - `speed: optional "standard" or "fast"` Inference speed mode. `fast` provides significantly faster output token generation at premium pricing. Defaults to `standard`. Not all models support `fast`; invalid combinations are rejected at create time. - `name: string` - `skills: array of BetaManagedAgentsAnthropicSkill or BetaManagedAgentsCustomSkill` - `beta_managed_agents_anthropic_skill: object` A resolved Anthropic-managed skill. - `type: "anthropic"` - `skill_id: string` - `version: string` - `beta_managed_agents_custom_skill: object` A resolved user-created custom skill. - `type: "custom"` - `skill_id: string` - `version: string` - `system: string` - `tools: array of BetaManagedAgentsAgentToolset20260401 or BetaManagedAgentsMCPToolset or BetaManagedAgentsCustomTool` - `beta_managed_agents_agent_toolset20260401: object` - `type: "agent_toolset_20260401"` - `configs: array of BetaManagedAgentsAgentToolConfig` - `beta_managed_agents_bash_tool_config: object` Configuration for the bash tool. - `type: "bash"` - `enabled: boolean` - `name: "bash"` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object` Tool calls are automatically approved without user confirmation. - `type: "always_allow"` - `beta_managed_agents_always_ask_policy: object` Tool calls require user confirmation before execution. - `type: "always_ask"` - `beta_managed_agents_auto_policy: object` The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask. - `type: "auto"` - `beta_managed_agents_edit_tool_config: object` Configuration for the edit tool. - `type: "edit"` - `enabled: boolean` - `name: "edit"` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object` Tool calls require user confirmation before execution. - `beta_managed_agents_auto_policy: object` The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask. - `beta_managed_agents_read_tool_config: object` Configuration for the read tool. - `type: "read"` - `enabled: boolean` - `name: "read"` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object` Tool calls require user confirmation before execution. - `beta_managed_agents_auto_policy: object` The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask. - `beta_managed_agents_write_tool_config: object` Configuration for the write tool. - `type: "write"` - `enabled: boolean` - `name: "write"` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object` Tool calls require user confirmation before execution. - `beta_managed_agents_auto_policy: object` The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask. - `beta_managed_agents_glob_tool_config: object` Configuration for the glob tool. - `type: "glob"` - `enabled: boolean` - `name: "glob"` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object` Tool calls require user confirmation before execution. - `beta_managed_agents_auto_policy: object` The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask. - `beta_managed_agents_grep_tool_config: object` Configuration for the grep tool. - `type: "grep"` - `enabled: boolean` - `name: "grep"` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object` Tool calls require user confirmation before execution. - `beta_managed_agents_auto_policy: object` The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask. - `beta_managed_agents_web_fetch_tool_config: object` Configuration for the web_fetch tool. - `type: "web_fetch"` - `enabled: boolean` - `name: "web_fetch"` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object` Tool calls require user confirmation before execution. - `beta_managed_agents_auto_policy: object` The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask. - `url_sources: object` Which sources contribute URLs the tool may fetch, always in the object form. Null when not set, which allows every source. - `client_tool_results: BetaManagedAgentsWebFetchURLSourceAll or BetaManagedAgentsWebFetchURLSourceNone or BetaManagedAgentsWebFetchURLSourceOnly or BetaManagedAgentsWebFetchURLSourceExcept` Which custom tools' results contribute URLs that may be fetched. Null when not set, which allows every custom tool's results. - `beta_managed_agents_web_fetch_url_source_all: object` Every URL from this source may be fetched. This is the default. - `type: "all"` - `beta_managed_agents_web_fetch_url_source_none: object` This source contributes no URLs that may be fetched. - `type: "none"` - `beta_managed_agents_web_fetch_url_source_only: object` Only the named tools' results contribute URLs that may be fetched. - `type: "only"` - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference` The tools whose results contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "none" to allow no tool's results. - `type: "tool_reference"` Must be "tool_reference". - `name: string` Name of the tool. Compared exactly, so upper and lower case letters are different. minLength: 1, maxLength: 128 - `beta_managed_agents_web_fetch_url_source_except: object` Every tool's results contribute URLs that may be fetched, except the named tools' results. - `type: "except"` - `tools: array of BetaManagedAgentsWebFetchURLSourceToolReference` The tools whose results do not contribute. Between 1 and 128 entries, each with a different name. An empty list is rejected; use "all" to leave out no tool's results. - `type: "tool_reference"` Must be "tool_reference". - `name: string` Name of the tool. Compared exactly, so upper and lower case letters are different. minLength: 1, maxLength: 128 - `server_tool_results: BetaManagedAgentsWebFetchURLSourceAll or BetaManagedAgentsWebFetchURLSourceNone or BetaManagedAgentsWebFetchURLSourceOnly or BetaManagedAgentsWebFetchURLSourceExcept` Which of the web_search and web_fetch tools' results contribute URLs that may be fetched. Null when not set, which allows both. - `beta_managed_agents_web_fetch_url_source_all: object` Every URL from this source may be fetched. This is the default. - `beta_managed_agents_web_fetch_url_source_none: object` This source contributes no URLs that may be fetched. - `beta_managed_agents_web_fetch_url_source_only: object` Only the named tools' results contribute URLs that may be fetched. - `beta_managed_agents_web_fetch_url_source_except: object` Every tool's results contribute URLs that may be fetched, except the named tools' results. - `user_input: BetaManagedAgentsWebFetchURLSourceAll or BetaManagedAgentsWebFetchURLSourceNone` Whether URLs in the text of user messages may be fetched. Null when not set, which allows them. - `beta_managed_agents_web_fetch_url_source_all: object` Every URL from this source may be fetched. This is the default. - `type: "all"` - `beta_managed_agents_web_fetch_url_source_none: object` This source contributes no URLs that may be fetched. - `type: "none"` - `allowed_domains: optional array of string` - `blocked_domains: optional array of string` - `max_content_tokens: optional number` format: int32 - `beta_managed_agents_web_search_tool_config: object` Configuration for the web_search tool. - `type: "web_search"` - `enabled: boolean` - `name: "web_search"` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object` Tool calls require user confirmation before execution. - `beta_managed_agents_auto_policy: object` The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask. - `allowed_domains: optional array of string` - `blocked_domains: optional array of string` - `user_location: optional object` Approximate user location for search result localization. - `type: "approximate"` Location precision. Only "approximate" is supported. - `city: optional string` City name. minLength: 1, maxLength: 255 - `country: optional string` Two-letter ISO 3166-1 country code, uppercase. - `region: optional string` Region or state name. minLength: 1, maxLength: 255 - `timezone: optional string` IANA timezone identifier, e.g. "America/Los_Angeles". minLength: 1, maxLength: 255 - `default_config: object` Resolved default configuration for agent tools. - `enabled: boolean` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object` Tool calls require user confirmation before execution. - `beta_managed_agents_auto_policy: object` The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask. - `beta_managed_agents_mcp_toolset: object` - `type: "mcp_toolset"` - `configs: array of BetaManagedAgentsMCPToolConfig` - `enabled: boolean` - `name: string` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object` Tool calls require user confirmation before execution. - `beta_managed_agents_auto_policy: object` The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask. - `default_config: object` Resolved default configuration for all tools from an MCP server. - `enabled: boolean` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy or BetaManagedAgentsAutoPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object` Tool calls require user confirmation before execution. - `beta_managed_agents_auto_policy: object` The server decides each tool call individually: it judges, from the tool, its input, and the session content so far, whether the call is safe to execute or high-risk, and evaluates it to allow when judged safe and to deny when judged high-risk. A call the server cannot reach a judgement on evaluates to ask. - `mcp_server_name: string` - `beta_managed_agents_custom_tool: object` A custom tool as returned in API responses. - `type: "custom"` - `description: string` - `input_schema: object` JSON Schema for custom tool input parameters. - `type: "object"` - `properties: optional map[unknown]` - `required: optional array of string` - `name: string` - `version: number` format: int32 - `beta_managed_agents_advisor: object` Platform advisor roster entry: a model the session's primary thread may consult mid-turn. - `type: "advisor"` - `model: string` The advisor model id. - `beta_managed_agents_session_multiagent20261001: object` Resolved multiagent configuration with three members, as copied to the `session` at creation. - `type: "multiagent_20261001"` - `advisor: BetaManagedAgentsMultiagentAdvisorEnabled or BetaManagedAgentsMultiagentAdvisorDisabled` Whether the session's primary thread can consult an advisor model. - `beta_managed_agents_multiagent_advisor_enabled: object` The session's primary thread can consult `model` mid-turn. - `type: "enabled"` - `model: string` The advisor model id. - `beta_managed_agents_multiagent_advisor_disabled: object` The agent has no advisor. - `type: "disabled"` - `subagents: BetaManagedAgentsSessionMultiagentSubagentsEnabled or BetaManagedAgentsMultiagentSubagentsDisabled` Whether the agent can spawn session threads. - `beta_managed_agents_session_multiagent_subagents_enabled: object` The agent can spawn session threads. - `type: "enabled"` - `inline_agents: BetaManagedAgentsMultiagentInlineAgentsEnabled or BetaManagedAgentsMultiagentInlineAgentsDisabled` Whether the agent can define inline agents, which are not saved, when it spawns session threads. - `beta_managed_agents_multiagent_inline_agents_enabled: object` The agent can define inline agents. - `type: "enabled"` - `beta_managed_agents_multiagent_inline_agents_disabled: object` The agent cannot define inline agents. - `type: "disabled"` - `predefined_agents: array of BetaManagedAgentsSessionThreadAgent` Full `agent` definitions of the predefined agents, which are saved agents that this agent can spawn as session threads. - `type: "agent"` - `id: string` - `description: string` - `execution_identity: BetaManagedAgentsAWSRoleExecutionIdentity or BetaManagedAgentsServiceAccountExecutionIdentity` Execution principal snapshotted from the agent at session creation. Always present; `{"type": "service_account"}` when runs carry no customer-named principal. - `mcp_servers: array of BetaManagedAgentsMCPServerURLDefinition` - `model: object` Model identifier and configuration. - `name: string` - `skills: array of BetaManagedAgentsAnthropicSkill or BetaManagedAgentsCustomSkill` - `system: string` - `tools: array of BetaManagedAgentsAgentToolset20260401 or BetaManagedAgentsMCPToolset or BetaManagedAgentsCustomTool` - `version: number` format: int32 - `beta_managed_agents_multiagent_subagents_disabled: object` The agent cannot spawn session threads. - `type: "disabled"` - `workflows: BetaManagedAgentsSessionMultiagentWorkflowsEnabled or BetaManagedAgentsMultiagentWorkflowsDisabled` Whether the agent can start workflow runs. - `beta_managed_agents_session_multiagent_workflows_enabled: object` The agent can start workflow runs. - `type: "enabled"` - `inline_agents: BetaManagedAgentsMultiagentInlineAgentsEnabled or BetaManagedAgentsMultiagentInlineAgentsDisabled` Whether a run's plan can define inline agents, which are not saved. - `beta_managed_agents_multiagent_inline_agents_enabled: object` The agent can define inline agents. - `beta_managed_agents_multiagent_inline_agents_disabled: object` The agent cannot define inline agents. - `predefined_agents: array of BetaManagedAgentsSessionThreadAgent` Full `agent` definitions of the predefined agents, which are saved agents that a run's plan can use. - `type: "agent"` - `id: string` - `description: string` - `execution_identity: BetaManagedAgentsAWSRoleExecutionIdentity or BetaManagedAgentsServiceAccountExecutionIdentity` Execution principal snapshotted from the agent at session creation. Always present; `{"type": "service_account"}` when runs carry no customer-named principal. - `mcp_servers: array of BetaManagedAgentsMCPServerURLDefinition` - `model: object` Model identifier and configuration. - `name: string` - `skills: array of BetaManagedAgentsAnthropicSkill or BetaManagedAgentsCustomSkill` - `system: string` - `tools: array of BetaManagedAgentsAgentToolset20260401 or BetaManagedAgentsMCPToolset or BetaManagedAgentsCustomTool` - `version: number` format: int32 - `beta_managed_agents_multiagent_workflows_disabled: object` The agent cannot start workflow runs. - `type: "disabled"` - `name: string` - `skills: array of BetaManagedAgentsAnthropicSkill or BetaManagedAgentsCustomSkill` - `beta_managed_agents_anthropic_skill: object` A resolved Anthropic-managed skill. - `beta_managed_agents_custom_skill: object` A resolved user-created custom skill. - `system: string` - `tools: array of BetaManagedAgentsAgentToolset20260401 or BetaManagedAgentsMCPToolset or BetaManagedAgentsCustomTool` - `beta_managed_agents_agent_toolset20260401: object` - `beta_managed_agents_mcp_toolset: object` - `beta_managed_agents_custom_tool: object` A custom tool as returned in API responses. - `version: number` format: int32 - `archived_at: string` When the session was archived. Null if not archived. format: date-time - `budget: object` The session's enforced spend ceiling, or null when no budget is set. - `type: "limit"` - `max_list_cost: object` Maximum list cost the session may accrue. List price is used regardless of any negotiated discount, so the cap fires at or before the actual charge. - `amount: string` Amount in minor units of the currency, as an integer decimal string with no leading zeros: "2500" is $25.00 and "50" is fifty cents. A string rather than a number so no float rounding is ever applied. - `currency: "USD"` Uppercase ISO-4217 currency code. `USD` is the only currency currently supported; the accepted set is closed and grows only when a new currency is priced. - `created_at: string` A timestamp in RFC 3339 format format: date-time - `environment_id: string` - `metadata: map[string]` - `outcome_evaluations: array of BetaManagedAgentsOutcomeEvaluationResource` Per-outcome evaluation state. One entry per `define_outcome` event sent to the session. - `type: "outcome_evaluation"` - `completed_at: string` When the outcome reached a terminal result. Null while `pending`/`running`/`evaluating`. format: date-time - `description: string` What the agent should produce. - `explanation: string` Grader's verdict text from the most recent evaluation. For `satisfied`, explains why criteria are met; for `needs_revision` (intermediate), what's missing; for `failed`, why unrecoverable. - `iteration: number` 0-indexed revision cycle the outcome is currently on. format: int32 - `outcome_id: string` Server-generated outc_ ID for this outcome. - `result: string` Current evaluation state. `pending` before the agent begins work; `running` while producing or revising; `evaluating` while the grader scores; `satisfied`/`max_iterations_reached`/`failed`/`interrupted` are terminal. - `resources: array of BetaManagedAgentsSessionResource` - `beta_managed_agents_github_repository_resource: object` - `type: "github_repository"` - `id: string` - `created_at: string` A timestamp in RFC 3339 format format: date-time - `mount_path: string` - `updated_at: string` A timestamp in RFC 3339 format format: date-time - `url: string` - `checkout: optional BetaManagedAgentsBranchCheckout or BetaManagedAgentsCommitCheckout` - `beta_managed_agents_branch_checkout: object` - `type: "branch"` - `name: string` Branch name to check out. minLength: 1, maxLength: 255 - `beta_managed_agents_commit_checkout: object` - `type: "commit"` - `sha: string` Full commit SHA to check out. minLength: 7, maxLength: 64 - `beta_managed_agents_file_resource: object` - `type: "file"` - `id: string` - `created_at: string` A timestamp in RFC 3339 format format: date-time - `file_id: string` - `mount_path: string` - `updated_at: string` A timestamp in RFC 3339 format format: date-time - `beta_managed_agents_memory_store_resource: object` A memory store attached to an agent session. - `type: "memory_store"` - `memory_store_id: string` The memory store ID (memstore_...). Must belong to the caller's organization and workspace. - `access: optional "read_write" or "read_only"` Access mode for the mounted store. Defaults to `read_write`. `read_only` mounts the store as a read-only filesystem. - `"read_write"` - `"read_only"` - `description: optional string` Description of the memory store, snapshotted at attach time. Rendered into the agent's system prompt. Empty string when the store has no description. - `instructions: optional string` Per-attachment guidance for the agent on how to use this store. Rendered into the memory section of the system prompt. Max 4096 chars. maxLength: 4096 - `mount_path: optional string` Filesystem path where the store is mounted in the session container, e.g. /mnt/memory/user-preferences. Derived from the store's name. Output-only. - `name: optional string` Display name of the memory store, snapshotted at attach time. Later edits to the store's name do not propagate to this resource. - `stats: object` Timing statistics for the session. - `active_seconds: optional number` Cumulative time in seconds the session spent in `running` status. Excludes idle time. format: double - `duration_seconds: optional number` Elapsed time since session creation in seconds. For terminated sessions, frozen at the final update. format: double - `status: "rescheduling" or "running" or "idle" or "terminated"` - `"rescheduling"` Transient error occurred, retrying automatically. - `"running"` Agent is actively executing. - `"idle"` Agent is waiting for input, including user messages or tool confirmations. Sessions start in idle. - `"terminated"` Session has ended, either due to an error or completion. - `title: string` - `updated_at: string` A timestamp in RFC 3339 format format: date-time - `usage: object` Cumulative token usage for the session. - `active_seconds: optional number` Cumulative time in seconds during which the session had at least one thread in running status. Overlapping activity from concurrent threads is counted once, unlike `stats.active_seconds`, which sums each thread's own active time. This is the duration the session's runtime cost is priced on. format: double - `cache_creation: optional object` Tokens used to create prompt cache entries, broken down by cache TTL. - `ephemeral_1h_input_tokens: optional number` Tokens used to create 1-hour ephemeral cache entries. format: int32 - `ephemeral_5m_input_tokens: optional number` Tokens used to create 5-minute ephemeral cache entries. format: int32 - `cache_read_input_tokens: optional number` Total tokens read from prompt cache. format: int32 - `input_tokens: optional number` Total input tokens consumed across all turns. format: int32 - `list_cost: optional object` Cumulative list cost of the session across all turns, priced at public list rates. Absent until cost tracking is available for the session. - `amount: string` Amount in minor units of the currency, as an integer decimal string with no leading zeros: "2500" is $25.00 and "50" is fifty cents. A string rather than a number so no float rounding is ever applied. - `currency: "USD"` Uppercase ISO-4217 currency code. `USD` is the only currency currently supported; the accepted set is closed and grows only when a new currency is priced. - `output_tokens: optional number` Total output tokens generated across all turns. format: int32 - `server_tool_use: optional object` Cumulative server-executed tool usage across all turns. Absent until server-tool tracking is available for the session. - `web_fetch_requests: optional number` Number of server-executed web fetch requests. format: int32 - `web_search_requests: optional number` Number of server-executed web search requests. format: int32 - `vault_ids: array of string` Vault IDs attached to the session at creation. Empty when no vaults were supplied. - `deployment_id: optional string` Deployment ID when the session was created from a deployment reference. Null otherwise. - `next_page: optional string` Opaque cursor for the next page. Null when no more results. - `prev_page: optional string` Opaque cursor for the previous page. Null when on the first page. Pass as the `page` parameter to navigate backward. ## Example ```bash ant beta:sessions list \ --api-key my-anthropic-api-key ``` ### Response (200) ```json { "data": [ { "id": "sesn_011CZkZAtmR3yMPDzynEDxu7", "agent": { "id": "agent_011CZkYpogX7uDKUyvBTophP", "description": "A general-purpose starter agent.", "execution_identity": { "type": "service_account" }, "mcp_servers": [ { "name": "example-mcp", "type": "url", "url": "https://example-server.modelcontextprotocol.io/sse" } ], "model": { "id": "claude-opus-5-5", "effort": { "type": "low" }, "inference_geo": "inference_geo", "speed": "standard" }, "multiagent": { "agents": [ { "id": "agent_011CZkYqphY8vELVzwCUpqiQ", "description": "A focused research subagent.", "execution_identity": { "type": "service_account" }, "mcp_servers": [ { "name": "example-mcp", "type": "url", "url": "https://example-server.modelcontextprotocol.io/sse" } ], "model": { "id": "claude-opus-5-5", "effort": { "type": "low" }, "inference_geo": "inference_geo", "speed": "standard" }, "name": "Researcher", "skills": [ { "skill_id": "xlsx", "type": "anthropic", "version": "1" } ], "system": "You are a research subagent that gathers and summarises sources for the coordinating agent.", "tools": [ { "configs": [ { "enabled": true, "name": "bash", "permission_policy": { "type": "always_allow" }, "type": "bash" } ], "default_config": { "enabled": true, "permission_policy": { "type": "always_ask" } }, "type": "agent_toolset_20260401" } ], "type": "agent", "version": 1 } ], "type": "coordinator" }, "name": "My First Agent", "skills": [ { "skill_id": "xlsx", "type": "anthropic", "version": "1" }, { "skill_id": "skill_011CZkZFNu9hAbo3jZPRgTmx", "type": "custom", "version": "2" } ], "system": "You are a general-purpose agent that can research, write code, run commands, and use connected tools to complete the user's task end to end.", "tools": [ { "configs": [ { "enabled": true, "name": "bash", "permission_policy": { "type": "always_allow" }, "type": "bash" } ], "default_config": { "enabled": true, "permission_policy": { "type": "always_ask" } }, "type": "agent_toolset_20260401" } ], "type": "agent", "version": 1 }, "archived_at": null, "budget": { "max_list_cost": { "amount": "2500", "currency": "USD" }, "type": "limit" }, "created_at": "2026-03-15T10:00:00Z", "environment_id": "env_011CZkZ9X2dpNyB7HsEFoRfW", "metadata": {}, "outcome_evaluations": [ { "completed_at": "2026-03-15T10:02:31Z", "description": "Produce a 2-page summary as summary.md", "explanation": "All five sections present with inline citations.", "iteration": 0, "outcome_id": "outc_011CZkZRSw2kEfs6ncTVmjxP", "result": "satisfied", "type": "outcome_evaluation" } ], "resources": [ { "id": "sesrsc_011CZkZBJq5dWxk9fVLNcPht", "created_at": "2026-03-15T10:00:00Z", "file_id": "file_011CNha8iCJcU1wXNR6q4V8w", "mount_path": "/uploads/receipt.pdf", "type": "file", "updated_at": "2026-03-15T10:00:00Z" }, { "id": "sesrsc_011CZkZCKr6eXym1gWMPdQiu", "created_at": "2026-03-15T10:00:00Z", "mount_path": "/workspace/example-repo", "type": "github_repository", "updated_at": "2026-03-15T10:00:00Z", "url": "https://github.com/example-org/example-repo", "checkout": { "name": "main", "type": "branch" } } ], "stats": { "active_seconds": 0, "duration_seconds": 0 }, "status": "idle", "title": "Order #1234 inquiry", "type": "session", "updated_at": "2026-03-15T10:00:00Z", "usage": { "active_seconds": 0, "cache_creation": { "ephemeral_1h_input_tokens": 0, "ephemeral_5m_input_tokens": 0 }, "cache_read_input_tokens": 0, "input_tokens": 0, "list_cost": { "amount": "2500", "currency": "USD" }, "output_tokens": 0, "server_tool_use": { "web_fetch_requests": 0, "web_search_requests": 3 } }, "vault_ids": [ "vlt_011CZkZDLs7fYzm1hXNPeRjv" ], "deployment_id": "deployment_id" } ], "next_page": "page_MjAyNS0wNS0xNFQwMDowMDowMFo=", "prev_page": "page_MjAyNS0wNS0xM1QwMDowMDowMFo=" } ```