Task: Agent Addressing (e.g. "`Alice`", "`user`", etc) is disabled by default.
Controllable via `TaskConfig.addressing_prefix` (default is empty string, meaning no addressing prefix).
See details in the `TaskConfig` API docs at https://langroid.github.io/langroid/reference/agent/task/.
Such addressing is discouraged since normal prompts (text, code) may accidentally contain such addressing.
Using `RecipientTool` is a much better alternative, and has other advantages, e.g.
the ability to detect the tool is not used correctly and send nudges to the LLM etc.