expect(result).not.toMatch(/^assistant:$/m);

});

it("preserves prose lines that merely end with 'user:'/'system:'", () => {

expect(sanitizeOutboundText("Please send this reply to the user:")).toBe(

"Please send this reply to the user:",

);

expect(sanitizeOutboundText("Here is a note for the system:")).toBe(

"Here is a note for the system:",

);

});

it("collapses excessive blank lines after stripping", () => {

const text = "Hello\n\n\n\n\nWorld";

expect(sanitizeOutboundText(text)).toBe("Hello\n\nWorld");

*/

const INTERNAL_SEPARATOR_RE = /(?:#\+){2,}#?/g;

const ASSISTANT_ROLE_MARKER_RE = /\bassistant\s+to\s*=\s*\w+/gi;

const ROLE_TURN_MARKER_RE = /\b(?:user|system|assistant)\s*:\s*$/gm;

// Only a standalone role marker on its own line (a leaked turn boundary) — not

// any line that merely ends with the word "user/system/assistant:" in prose.

const ROLE_TURN_MARKER_RE = /^[ \t]*(?:user|system|assistant)\s*:\s*$/gm;

/**

* Strip all assistant-internal scaffolding from outbound text before delivery.