Update LLM instructions at the specified level. Required: level ('brain'|'personal_root'|'container'|'team'), instructions (string). Optional: id (integer, required for 'container' and 'team'), mode ('replace' default|'append'). The 'container' level updates personal containers only; to set instructions for a team, use level 'team' (team owners only). In 'replace' mode (default), the provided text overwrites existing instructions. In 'append' mode, the text is appended to existing instructions with a newline separator. Always read current instructions first before replacing to avoid losing existing content.
Connector