Claude Platform Docs

Update Session Resource

$ ant beta:sessions:resources update
POST/v1/sessions/{session_id}/resources/{resource_id}

Update Session Resource

Parameters
--session-id: string

Path param: Path parameter session_id

--resource-id: string

Path param: Path parameter resource_id

--authorization-token: string

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

minLength1
maxLength4096
--beta: optional array of AnthropicBeta

Header param: Optional header to specify the beta version(s) you want to use.

Returns
BetaSessionResourceUpdateResponse: BetaManagedAgentsGitHubRepositoryResource { id, created_at, mount_path, 4 more } or BetaManagedAgentsFileResource { id, created_at, file_id, 3 more } or BetaManagedAgentsMemoryStoreResource { memory_store_id, type, access, 4 more }

The updated session resource.

One of the following:
beta_managed_agents_github_repository_resource: object{ id, created_at, mount_path, 4 more }
id: string
created_at: string

A timestamp in RFC 3339 format

formatdate-time
mount_path: string
type: "github_repository"
updated_at: string

A timestamp in RFC 3339 format

formatdate-time
url: string
checkout: optional BetaManagedAgentsBranchCheckout { name, type } or BetaManagedAgentsCommitCheckout { sha, type }
One of the following:
beta_managed_agents_branch_checkout: object{ name, type }
name: string

Branch name to check out.

minLength1
maxLength255
type: "branch"
beta_managed_agents_commit_checkout: object{ sha, type }
sha: string

Full commit SHA to check out.

minLength7
maxLength64
type: "commit"
beta_managed_agents_file_resource: object{ id, created_at, file_id, 3 more }
id: string
created_at: string

A timestamp in RFC 3339 format

formatdate-time
file_id: string
mount_path: string
type: "file"
updated_at: string

A timestamp in RFC 3339 format

formatdate-time
beta_managed_agents_memory_store_resource: object{ memory_store_id, type, access, 4 more }

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"
access: optional "read_write" or "read_only"

Access mode for an attached memory store.

One of the following:
"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.

maxLength4096
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.

Update Session Resource

ant beta:sessions:resources update \
  --api-key my-anthropic-api-key \
  --session-id sesn_011CZkZAtmR3yMPDzynEDxu7 \
  --resource-id sesrsc_011CZkZBJq5dWxk9fVLNcPht \
  --authorization-token ghp_exampletoken
{
  "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"
  }
}
Returns Examples
{
  "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"
  }
}