Options for creating filesystem middleware.
interface FilesystemMiddlewareOptionsBackend instance or factory (default: StateBackend)
Optional custom tool descriptions override
Optional token limit before evicting a HumanMessage to the filesystem (default: 50000 tokens, ~200KB)
System prompt override. Set to null to disable. Defaults to ASYNC_TASK_SYSTEM_PROMPT.
Optional token limit before evicting a tool result to the filesystem (default: 20000 tokens, ~80KB)