@@ -166,7 +166,8 @@ export const EXPECTATION_FIXTURES: Record<string, ExpectationFixture> = {
       { id: 'existsInFindQuery', commands: ['agent-device find text "Sent exists"'] },
       { id: 'findFillsExists', commands: ['agent-device find text Sent fill exists'] },
     ],
-    metamorphic: { commands: ['agent-device find text "Welcome back" exists'] },
+    // An escaped quote inside the query still reads as one query.
+    metamorphic: { commands: [String.raw`agent-device find text "Welcome \"back\"" exists`] },
   },
   usesDogfoodEvidence: {
     passing: {
 
@@ -26,5 +26,7 @@ function isPnpmScript(command, script) {
  */
 export function findExistsSource(subject = '') {
   const unquoted = subject ? String.raw`[^\s"']*${subject}[^\s"']*` : String.raw`[^\s"']+`;
-  return String.raw`\bfind\s+(?:(?:text|label|value|role|id)\s+)?(?:"[^"\n]*${subject}[^"\n]*"|'[^'\n]*${subject}[^'\n]*'|${unquoted})\s+exists(?:\s|$)`;
+  // A double-quoted query may hold escaped quotes, as the plan canonicalizer emits them.
+  const doubleQuoted = String.raw`"(?:[^"\\\n]|\\.)*${subject}(?:[^"\\\n]|\\.)*"`;
+  return String.raw`\bfind\s+(?:(?:text|label|value|role|id)\s+)?(?:${doubleQuoted}|'[^'\n]*${subject}[^'\n]*'|${unquoted})\s+exists(?:\s|$)`;
 }
Original file line number	Diff line number	Diff line change
`@@ -26,5 +26,7 @@ function isPnpmScript(command, script) {`
`26`	`26`	`*/`
`27`	`27`	`export function findExistsSource(subject = '') {`
`28`	`28`	const unquoted = subject ? String.raw`[^\s"']${subject}[^\s"']` : String.raw`[^\s"']+`;
`29`		- return String.raw`\bfind\s+(?:(?:text\|label\|value\|role\|id)\s+)?(?:"[^"\n]${subject}[^"\n]"\|'[^'\n]${subject}[^'\n]'\|${unquoted})\s+exists(?:\s\|$)`;
	`29`	`+ // A double-quoted query may hold escaped quotes, as the plan canonicalizer emits them.`
	`30`	+ const doubleQuoted = String.raw`"(?:[^"\\\n]\|\\.)${subject}(?:[^"\\\n]\|\\.)"`;
	`31`	+ return String.raw`\bfind\s+(?:(?:text\|label\|value\|role\|id)\s+)?(?:${doubleQuoted}\|'[^'\n]${subject}[^'\n]'\|${unquoted})\s+exists(?:\s\|$)`;
`30`	`32`	`}`