if (!shouldStripAssistantScaffoldingForLiveModel(modelKey)) {

return text;

}

return stripAssistantInternalScaffolding(text).trim();

return stripAssistantInternalScaffolding(stripKnownLiveReasoningWrappers(text)).trim();

}

function stripKnownLiveReasoningWrappers(text: string): string {

return text

.replace(/<\s*think\b[^<>]*>[\s\S]*?<\s*\/\s*think\s*>/gi, "")

.replace(/^[\s\S]*?<\s*\/\s*think\s*>\s*/i, "")

.replace(/<\s*final\b[^<>]*>([\s\S]*?)<\s*\/\s*final\s*>/gi, "$1");

}

function shouldSkipExecReadNonceMissForLiveModel(modelKey?: string): boolean {

"google/gemini-3.1-pro-preview-customtools",

),

).toBe("Visible");

expect(

maybeStripAssistantScaffoldingForLiveModel(

[

"<think>",

"1. Inspect",

"```",

"draft",

"```",

"2. Draft the explanation",

"</think>The event loop drains the microtask queue before the next macrotask.",

].join("\n"),

"google/gemini-3-flash-preview",

),

).toBe("The event loop drains the microtask queue before the next macrotask.");

});

it("strips scaffolding for known OpenAI transcript wrappers", () => {