expectAllToolCallArgs(result, { path: "safe.txt" });

});

it("decodes JSON escapes inside smart-quoted string args", async () => {

const result = await runToolCallRepairCase({

delta: String.raw` {“path”:“safe.txt”,“content”:“line\nnext \"quoted\" path C:\\tmp mark \u2713 invalid \d”}`,

});

expectAllToolCallArgs(result, {

path: "safe.txt",

content: 'line\nnext "quoted" path C:\\tmp mark ✓ invalid \\d',

});

});

it("keeps duplicate-looking smart-quoted args inside content", async () => {

const result = await runToolCallRepairCase({

delta: String.raw` {“path”:“safe.txt”,“content”:“text ”, “path”: “other.txt””}`,

old_string: "new_string",

oldText: "newText",

};

const TOOLCALL_REPAIR_JSON_STRING_ESCAPES: Record<string, string> = {

'"': '"',

"\\": "\\",

"/": "/",

b: "\b",

f: "\f",

n: "\n",

r: "\r",

t: "\t",

};

function shouldAttemptMalformedToolCallRepair(partialJson: string, delta: string): boolean {

if (/[}\]]/.test(delta)) {

return TOOLCALL_REPAIR_FREEFORM_SUCCESSOR_KEYS[valueKey] === nextKey;

}

function decodeSmartQuotedJsonStringEscapes(value: string): string {

return value.replace(/\\(?:(["\\/bfnrt])|u([0-9a-fA-F]{4}))/g, (_match, escaped, hex) =>

typeof hex === "string"

? String.fromCharCode(parseInt(hex, 16))

: TOOLCALL_REPAIR_JSON_STRING_ESCAPES[escaped as string],

);

}

function readSmartQuotedValue(

raw: string,

startIndex: number,

for (let i = startIndex + 1; i < raw.length; i += 1) {

const char = raw[i];

if (isToolCallRepairSmartQuote(char) && shouldCloseSmartQuotedValueAt(raw, i, key)) {

return { value, endIndex: i + 1 };

return { value: decodeSmartQuotedJsonStringEscapes(value), endIndex: i + 1 };

}

value += char;

}