Root cause: opencode/Claude Code recognizes the Frankenbot repo context from CLAUDE.md
and refuses to output @CREATE_SUBTASK, @SEND_EMAIL etc. as they look like 'system
directives'. XML tags (<create_task>, <send_email>, etc.) work reliably.
- parse_agent_commands(): full rewrite with XML tag parser, supports both
XML child tags and key: value fields within blocks
- build_agent_prompt(): command docs updated to XML format with code examples
- orchestrator/systemprompt.md: rewritten with XML action examples
- ar_manager/systemprompt.md: @ASK_ORCHESTRATOR -> <ask_orchestrator>
Old prompt had no instructions for when/how to use @CREATE_SUBTASK during chat,
no list of available agents by key name, and no guidance on handling conversational
messages. Orchestrator was answering questions but never creating tasks or taking
actions autonomously.
