Distillation

Date: Sep 16, 2026

• 🟡 (22:01) User provided additional test code that imports GatewayRequest from ../src/translate/types, creates streaming openai-responses requests via request("openai-responses", alias, true), and parses SSE frames using JSON.parse(frame.split("\ndata: ")[1]).
• 🟡 (22:01) The supplied tests inspect persistence with SELECT COUNT(*) AS count FROM temporal_messages WHERE session_id = ? AND role = 'assistant'.
• 🟡 (22:01) A parameterized test named "rolls back malformed %s recovery synthesis" verifies malformed synthesized recovery responses are rolled back rather than committed.
• 🟡 (22:01) The recovery tests include Vertex configuration with cfg.vertexRegion = "global" and cfg.vertexProject = "test-vertex-project".
• 🟡 (22:01) The supplied test cases exercise malformed usage variants including "missing" usage and negative token counts; the Gemini/Vertex-shaped negative case sets promptTokenCount to -1 instead of 1000.