Two behavioural regressions caught in live testing with a real customer
conversation:
1. Ping-pong scenario -> orchestrator -> scenario
build_and_wire_agents was calling scenario_agents.register_handoffs(
assistant_agent), which exposed handoff_to_jasmine as a tool INSIDE
every scenario. Daniela (reservation scenario) kept calling it mid
flow, the orchestrator resumed the turn, and customers got messages
like "Vou te encaminhar para a Daniela..." after ALREADY being with
Daniela. The back-edge is removed. When a customer legitimately
changes topic mid-scenario, pick_starting_agent on the next turn
already routes back to the orchestrator based on conversation state,
so no manual handoff from the scenario side is needed.
2. FAQ_PRICE_PATTERNS was hijacking legitimate routing responses
The previous regex matched the bare words "pernoite", "sinal",
"diaria" WITHOUT requiring a numeric price nearby. A legitimate
handoff response like "Vou transferir para a Daniela para confirmar
a Stilo para pernoite" tripped the guardrail, which then substituted
the response with raw FAQ content about rates. Narrowed to: R$
values, numbers followed by "reais", and the explicit price-noun
variants (preco/preço/valor/preços/valores/custo/custa). Incidental
mentions of stay types no longer trigger.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>