## Archive Session `client.beta.sessions.archive(stringsessionID, SessionArchiveParamsparams?, RequestOptionsoptions?): BetaManagedAgentsSession` **post** `/v1/sessions/{session_id}/archive` Archive Session ### Parameters - `sessionID: string` - `params: SessionArchiveParams` - `betas?: Array` Optional header to specify the beta version(s) you want to use. - `(string & {})` - `"message-batches-2024-09-24" | "prompt-caching-2024-07-31" | "computer-use-2024-10-22" | 23 more` - `"message-batches-2024-09-24"` - `"prompt-caching-2024-07-31"` - `"computer-use-2024-10-22"` - `"computer-use-2025-01-24"` - `"pdfs-2024-09-25"` - `"token-counting-2024-11-01"` - `"token-efficient-tools-2025-02-19"` - `"output-128k-2025-02-19"` - `"files-api-2025-04-14"` - `"mcp-client-2025-04-04"` - `"mcp-client-2025-11-20"` - `"dev-full-thinking-2025-05-14"` - `"interleaved-thinking-2025-05-14"` - `"code-execution-2025-05-22"` - `"extended-cache-ttl-2025-04-11"` - `"context-1m-2025-08-07"` - `"context-management-2025-06-27"` - `"model-context-window-exceeded-2025-08-26"` - `"skills-2025-10-02"` - `"fast-mode-2026-02-01"` - `"output-300k-2026-03-24"` - `"user-profiles-2026-03-24"` - `"advisor-tool-2026-03-01"` - `"managed-agents-2026-04-01"` - `"cache-diagnosis-2026-04-07"` - `"thinking-token-count-2026-05-13"` ### Returns - `BetaManagedAgentsSession` A Managed Agents `session`. - `id: string` - `agent: BetaManagedAgentsSessionAgent` Resolved `agent` definition for a `session`. Snapshot of the `agent` at `session` creation time. - `id: string` - `description: string | null` - `mcp_servers: Array` - `name: string` - `type: "url"` - `"url"` - `url: string` - `model: BetaManagedAgentsModelConfig` Model identifier and configuration. - `id: BetaManagedAgentsModel` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options. - `"claude-opus-4-8" | "claude-opus-4-7" | "claude-opus-4-6" | 7 more` - `"claude-opus-4-8"` Frontier intelligence for long-running agents and coding - `"claude-opus-4-7"` Frontier intelligence for long-running agents and coding - `"claude-opus-4-6"` Most intelligent model for building agents and coding - `"claude-sonnet-4-6"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Premium model combining maximum intelligence with practical performance - `"claude-opus-4-5-20251101"` Premium model combining maximum intelligence with practical performance - `"claude-sonnet-4-5"` High-performance model for agents and coding - `"claude-sonnet-4-5-20250929"` High-performance model for agents and coding - `(string & {})` - `speed?: "standard" | "fast"` Inference speed mode. `fast` provides significantly faster output token generation at premium pricing. Not all models support `fast`; invalid combinations are rejected at create time. - `"standard"` - `"fast"` - `multiagent: BetaManagedAgentsSessionMultiagentCoordinator | null` Resolved coordinator topology with full agent definitions for each roster member. - `agents: Array` Full `agent` definitions the coordinator may spawn as session threads. - `id: string` - `description: string | null` - `mcp_servers: Array` - `name: string` - `type: "url"` - `url: string` - `model: BetaManagedAgentsModelConfig` Model identifier and configuration. - `name: string` - `skills: Array` - `BetaManagedAgentsAnthropicSkill` A resolved Anthropic-managed skill. - `skill_id: string` - `type: "anthropic"` - `"anthropic"` - `version: string` - `BetaManagedAgentsCustomSkill` A resolved user-created custom skill. - `skill_id: string` - `type: "custom"` - `"custom"` - `version: string` - `system: string | null` - `tools: Array` - `BetaManagedAgentsAgentToolset20260401` - `configs: Array` - `enabled: boolean` - `name: "bash" | "edit" | "read" | 5 more` Built-in agent tool identifier. - `"bash"` - `"edit"` - `"read"` - `"write"` - `"glob"` - `"grep"` - `"web_fetch"` - `"web_search"` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy | BetaManagedAgentsAlwaysAskPolicy` Permission policy for tool execution. - `BetaManagedAgentsAlwaysAllowPolicy` Tool calls are automatically approved without user confirmation. - `type: "always_allow"` - `"always_allow"` - `BetaManagedAgentsAlwaysAskPolicy` Tool calls require user confirmation before execution. - `type: "always_ask"` - `"always_ask"` - `default_config: BetaManagedAgentsAgentToolsetDefaultConfig` Resolved default configuration for agent tools. - `enabled: boolean` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy | BetaManagedAgentsAlwaysAskPolicy` Permission policy for tool execution. - `BetaManagedAgentsAlwaysAllowPolicy` Tool calls are automatically approved without user confirmation. - `BetaManagedAgentsAlwaysAskPolicy` Tool calls require user confirmation before execution. - `type: "agent_toolset_20260401"` - `"agent_toolset_20260401"` - `BetaManagedAgentsMCPToolset` - `configs: Array` - `enabled: boolean` - `name: string` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy | BetaManagedAgentsAlwaysAskPolicy` Permission policy for tool execution. - `BetaManagedAgentsAlwaysAllowPolicy` Tool calls are automatically approved without user confirmation. - `BetaManagedAgentsAlwaysAskPolicy` Tool calls require user confirmation before execution. - `default_config: BetaManagedAgentsMCPToolsetDefaultConfig` Resolved default configuration for all tools from an MCP server. - `enabled: boolean` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy | BetaManagedAgentsAlwaysAskPolicy` Permission policy for tool execution. - `BetaManagedAgentsAlwaysAllowPolicy` Tool calls are automatically approved without user confirmation. - `BetaManagedAgentsAlwaysAskPolicy` Tool calls require user confirmation before execution. - `mcp_server_name: string` - `type: "mcp_toolset"` - `"mcp_toolset"` - `BetaManagedAgentsCustomTool` A custom tool as returned in API responses. - `description: string` - `input_schema: BetaManagedAgentsCustomToolInputSchema` JSON Schema for custom tool input parameters. - `properties?: Record | null` JSON Schema properties defining the tool's input parameters. - `required?: Array` List of required property names. - `type?: "object"` Must be 'object' for tool input schemas. - `"object"` - `name: string` - `type: "custom"` - `"custom"` - `type: "agent"` - `"agent"` - `version: number` - `type: "coordinator"` - `"coordinator"` - `name: string` - `skills: Array` - `BetaManagedAgentsAnthropicSkill` A resolved Anthropic-managed skill. - `BetaManagedAgentsCustomSkill` A resolved user-created custom skill. - `system: string | null` - `tools: Array` - `BetaManagedAgentsAgentToolset20260401` - `BetaManagedAgentsMCPToolset` - `BetaManagedAgentsCustomTool` A custom tool as returned in API responses. - `type: "agent"` - `"agent"` - `version: number` - `archived_at: string | null` A timestamp in RFC 3339 format - `created_at: string` A timestamp in RFC 3339 format - `environment_id: string` - `metadata: Record` - `outcome_evaluations: Array` Per-outcome evaluation state. One entry per define_outcome event sent to the session. - `completed_at: string | null` A timestamp in RFC 3339 format - `description: string` What the agent should produce. - `explanation: string | null` 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. - `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. - `type: "outcome_evaluation"` - `"outcome_evaluation"` - `resources: Array` - `BetaManagedAgentsGitHubRepositoryResource` - `id: string` - `created_at: string` A timestamp in RFC 3339 format - `mount_path: string` - `type: "github_repository"` - `"github_repository"` - `updated_at: string` A timestamp in RFC 3339 format - `url: string` - `checkout?: BetaManagedAgentsBranchCheckout | BetaManagedAgentsCommitCheckout | null` - `BetaManagedAgentsBranchCheckout` - `name: string` Branch name to check out. - `type: "branch"` - `"branch"` - `BetaManagedAgentsCommitCheckout` - `sha: string` Full commit SHA to check out. - `type: "commit"` - `"commit"` - `BetaManagedAgentsFileResource` - `id: string` - `created_at: string` A timestamp in RFC 3339 format - `file_id: string` - `mount_path: string` - `type: "file"` - `"file"` - `updated_at: string` A timestamp in RFC 3339 format - `BetaManagedAgentsMemoryStoreResource` A memory store attached to an agent session. - `memory_store_id: string` The memory store ID (memstore_...). Must belong to the caller's organization and workspace. - `type: "memory_store"` - `"memory_store"` - `access?: "read_write" | "read_only" | null` Access mode for an attached memory store. - `"read_write"` - `"read_only"` - `description?: 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?: string | null` Per-attachment guidance for the agent on how to use this store. Rendered into the memory section of the system prompt. Max 4096 chars. - `mount_path?: string | null` 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?: string | null` Display name of the memory store, snapshotted at attach time. Later edits to the store's name do not propagate to this resource. - `stats: BetaManagedAgentsSessionStats` Timing statistics for a session. - `active_seconds?: number` Cumulative time in seconds the session spent in running status. Excludes idle time. - `duration_seconds?: number` Elapsed time since session creation in seconds. For terminated sessions, frozen at the final update. - `status: "rescheduling" | "running" | "idle" | "terminated"` SessionStatus enum - `"rescheduling"` - `"running"` - `"idle"` - `"terminated"` - `title: string | null` - `type: "session"` - `"session"` - `updated_at: string` A timestamp in RFC 3339 format - `usage: BetaManagedAgentsSessionUsage` Cumulative token usage for a session across all turns. - `cache_creation?: BetaManagedAgentsCacheCreationUsage` Prompt-cache creation token usage broken down by cache lifetime. - `ephemeral_1h_input_tokens?: number` Tokens used to create 1-hour ephemeral cache entries. - `ephemeral_5m_input_tokens?: number` Tokens used to create 5-minute ephemeral cache entries. - `cache_read_input_tokens?: number` Total tokens read from prompt cache. - `input_tokens?: number` Total input tokens consumed across all turns. - `output_tokens?: number` Total output tokens generated across all turns. - `vault_ids: Array` Vault IDs attached to the session at creation. Empty when no vaults were supplied. ### Example ```typescript import Anthropic from '@anthropic-ai/sdk'; const client = new Anthropic({ apiKey: process.env['ANTHROPIC_API_KEY'], // This is the default and can be omitted }); const betaManagedAgentsSession = await client.beta.sessions.archive( 'sesn_011CZkZAtmR3yMPDzynEDxu7', ); console.log(betaManagedAgentsSession.id); ``` #### Response ```json { "id": "sesn_011CZkZAtmR3yMPDzynEDxu7", "agent": { "id": "agent_011CZkYpogX7uDKUyvBTophP", "description": "A general-purpose starter agent.", "mcp_servers": [ { "name": "example-mcp", "type": "url", "url": "https://example-server.modelcontextprotocol.io/sse" } ], "model": { "id": "claude-sonnet-4-6", "speed": "standard" }, "multiagent": { "agents": [ { "id": "agent_011CZkYqphY8vELVzwCUpqiQ", "description": "A focused research subagent.", "mcp_servers": [ { "name": "example-mcp", "type": "url", "url": "https://example-server.modelcontextprotocol.io/sse" } ], "model": { "id": "claude-sonnet-4-6", "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" } } ], "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_011CZkZFNu9hAbo3jZPRgTlx", "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" } } ], "default_config": { "enabled": true, "permission_policy": { "type": "always_ask" } }, "type": "agent_toolset_20260401" } ], "type": "agent", "version": 1 }, "archived_at": null, "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_011CZkZRSw2kEfs6ncTVljxP", "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_011CZkZCKr6eXyl0gWMOdQiu", "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": { "cache_creation": { "ephemeral_1h_input_tokens": 0, "ephemeral_5m_input_tokens": 0 }, "cache_read_input_tokens": 0, "input_tokens": 0, "output_tokens": 0 }, "vault_ids": [ "vlt_011CZkZDLs7fYzm1hXNPeRjv" ] } ```