Update Session Resource

ResourceUpdateResponse Beta.Sessions.Resources.Update(parameters, cancellationToken = default)

POST/v1/sessions/{session_id}/resources/{resource_id}

Parameters

ResourceUpdateParams parameters

required string sessionID⁠Path

required string resourceID⁠Path

required string authorizationToken

New authorization token for the resource. Currently only github_repository resources support token rotation.

minLength1

maxLength4096

IReadOnlyList<AnthropicBeta> betas⁠Header

This endpoint is in beta: requests must send managed-agents-2026-04-01 in this header.

MessageBatches2024_09_24("message-batches-2024-09-24")

PromptCaching2024_07_31("prompt-caching-2024-07-31")

ComputerUse2024_10_22("computer-use-2024-10-22")

ComputerUse2025_01_24("computer-use-2025-01-24")

Pdfs2024_09_25("pdfs-2024-09-25")

TokenCounting2024_11_01("token-counting-2024-11-01")

TokenEfficientTools2025_02_19("token-efficient-tools-2025-02-19")

Output128k2025_02_19("output-128k-2025-02-19")

FilesApi2025_04_14("files-api-2025-04-14")

McpClient2025_04_04("mcp-client-2025-04-04")

McpClient2025_11_20("mcp-client-2025-11-20")

DevFullThinking2025_05_14("dev-full-thinking-2025-05-14")

InterleavedThinking2025_05_14("interleaved-thinking-2025-05-14")

CodeExecution2025_05_22("code-execution-2025-05-22")

ExtendedCacheTtl2025_04_11("extended-cache-ttl-2025-04-11")

Context1m2025_08_07("context-1m-2025-08-07")

ContextManagement2025_06_27("context-management-2025-06-27")

ModelContextWindowExceeded2025_08_26("model-context-window-exceeded-2025-08-26")

Skills2025_10_02("skills-2025-10-02")

FastMode2026_02_01("fast-mode-2026-02-01")

Output300k2026_03_24("output-300k-2026-03-24")

UserProfiles2026_03_24("user-profiles-2026-03-24")

UserProfiles2026_08_18("user-profiles-2026-08-18")

UserProfiles2026_09_04("user-profiles-2026-09-04")

AdvisorTool2026_03_01("advisor-tool-2026-03-01")

ManagedAgents2026_04_01("managed-agents-2026-04-01")

CacheDiagnosis2026_04_07("cache-diagnosis-2026-04-07")

Dreaming2026_04_21("dreaming-2026-04-21")

ThinkingTokenCount2026_05_13("thinking-token-count-2026-05-13")

ServerSideFallback2026_06_01("server-side-fallback-2026-06-01")

ServerSideFallback2026_07_01("server-side-fallback-2026-07-01")

FallbackCredit2026_06_01("fallback-credit-2026-06-01")

FallbackCredit2026_07_01("fallback-credit-2026-07-01")

AgentMemory2026_07_22("agent-memory-2026-07-22")

MidConversationToolChanges2026_07_01("mid-conversation-tool-changes-2026-07-01")

Compact2026_01_12("compact-2026-01-12")

ComputerUse2025_11_24("computer-use-2025-11-24")

McpTunnels2026_06_22("mcp-tunnels-2026-06-22")

StructuredOutputs2025_11_13("structured-outputs-2025-11-13")

TaskBudgets2026_03_13("task-budgets-2026-03-13")

ThinkingDisplayUpdates2026_08_18("thinking-display-updates-2026-08-18")

CEUserManagement2026_07_13("ce-user-management-2026-07-13")

MidConversationOutputConfig2026_07_01("mid-conversation-output-config-2026-07-01")

ThinkingBindingControls2026_08_01("thinking-binding-controls-2026-08-01")

MidConversationSystemClearAt2026_08_21("mid-conversation-system-clear-at-2026-08-21")

Compact2026_09_04("compact-2026-09-04")

InlineTools2026_09_15("inline-tools-2026-09-15")

McpClient2026_09_15("mcp-client-2026-09-15")

CEPlugins2026_09_01("ce-plugins-2026-09-01")

SpendLimitReads2026_09_26("spend-limit-reads-2026-09-26")

TelemetryDestinations2026_08_11("telemetry-destinations-2026-08-11")

Webhooks2026_10_07("webhooks-2026-10-07")

MessageThreads2026_08_12("message-threads-2026-08-12")

AnalyticsUsageCost2026_08_24("analytics-usage-cost-2026-08-24")

ExperimentalClaudeTag2026_10_21("experimental-claude-tag-2026-10-21")

string workspaceID⁠Header

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

class ResourceUpdateResponse: union

The updated session resource.

class BetaManagedAgentsGitHubRepositoryResource { Type = "github_repository"; ID; CreatedAt; /* 4 more */ }

class BetaManagedAgentsFileResource { Type = "file"; ID; CreatedAt; /* 3 more */ }

JsonElement Type = "file"

required string ID

required DateTimeOffset CreatedAt

A timestamp in RFC 3339 format

formatdate-time

required string FileID

required string MountPath

required DateTimeOffset UpdatedAt

A timestamp in RFC 3339 format

formatdate-time

class BetaManagedAgentsMemoryStoreResource { Type = "memory_store"; MemoryStoreID; Access; /* 4 more */ }

A memory store attached to an agent session.

JsonElement Type = "memory_store"

required string MemoryStoreID

The memory store ID (memstore_...). Must belong to the caller's organization and workspace.

Access? Access

Access mode for the mounted store. Defaults to read_write. read_only mounts the store as a read-only filesystem.

One of the following:

ReadWrite("read_write")

ReadOnly("read_only")

string Description

Description of the memory store, snapshotted at attach time. Rendered into the agent's system prompt. Empty string when the store has no description.

string? Instructions

Per-attachment guidance for the agent on how to use this store. Rendered into the memory section of the system prompt. Max 4096 chars.

maxLength4096

string? MountPath

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.

string? Name

Display name of the memory store, snapshotted at attach time. Later edits to the store's name do not propagate to this resource.

Update Session Resource

using System;
using Anthropic.Models.Beta.Sessions.Resources;

ResourceUpdateParams parameters = new()
{
    SessionID = "sesn_011CZkZAtmR3yMPDzynEDxu7",
    ResourceID = "sesrsc_011CZkZBJq5dWxk9fVLNcPht",
    AuthorizationToken = "ghp_exampletoken",
};

var resource = await client.Beta.Sessions.Resources.Update(parameters);

Console.WriteLine(resource);

Response 200

{
  "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"
  }
}

Returns Examples

Response 200

{
  "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"
  }
}