Interface●Since v1.4

WriteResult

Result from backend write operations.

Checkpoint backends populate filesUpdate with {file_path: file_data} for LangGraph state. External backends set filesUpdate to null (already persisted to disk/S3/database/etc).

interface WriteResult

Properties

property

error: string

Error message on failure, undefined on success

property

filesUpdate: Record<string, FileData> | null

State update dict for checkpoint backends, null for external storage. Checkpoint backends populate this with {file_path: file_data} for LangGraph state. External backends set null (already persisted to disk/S3/database/etc).

property

metadata: Record<string, unknown>

Metadata for the edit operation, attached to the ToolMessage

property

path: string

File path of edited file, undefined on failure

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WriteResult

Properties

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WriteResult

Properties