diff --git a/.claude/worktrees/agent-ad3369ec b/.claude/worktrees/agent-ad3369ec
new file mode 160000
index 0000000..5f35206
--- /dev/null
+++ b/.claude/worktrees/agent-ad3369ec
@@ -0,0 +1 @@
+Subproject commit 5f3520658d949372276bf27be0aa8b2ff0d9193c
diff --git a/src/core/packs.ts b/src/core/packs.ts
index 47bfc57..5dd65b1 100644
--- a/src/core/packs.ts
+++ b/src/core/packs.ts
@@ -691,8 +691,9 @@ export function createPack(db: Database.Database, options: CreatePackOptions): K
 /** Simple glob-style pattern matching (supports * and ** wildcards). */
 function matchesExcludePattern(relativePath: string, pattern: string): boolean {
   // Escape regex special chars except * and **
+  // prettier-ignore
   const escaped = pattern
-    .replace(/[.+^${}()|[\]\\]/g, "\\$&")
+    .replaceAll(/[.+^${}()|[\]\\]/g, String.raw`\$&`)
     .replaceAll("**", "\0")
     .replaceAll("*", "[^/]*")
     .replaceAll("\0", ".*");
diff --git a/src/core/parsers/csv.ts b/src/core/parsers/csv.ts
index 99012d1..8d13271 100644
--- a/src/core/parsers/csv.ts
+++ b/src/core/parsers/csv.ts
@@ -18,8 +18,9 @@ export class CsvParser implements DocumentParser {
       const colCount = header.length;
       const rows = records.slice(1);
 
+      // prettier-ignore
       const escapeCell = (cell: string): string =>
-        cell.replaceAll("\\", "\\\\").replaceAll("|", "\\|").replaceAll("\n", " ");
+        cell.replaceAll("\\", String.raw`\\`).replaceAll("|", String.raw`\|`).replaceAll("\n", " ");
 
       const lines: string[] = [];
       lines.push(
diff --git a/src/core/search.ts b/src/core/search.ts
index 76d8519..c0570fd 100644
--- a/src/core/search.ts
+++ b/src/core/search.ts
@@ -39,11 +39,12 @@ function isVectorTableError(err: unknown): boolean {
 
 /** Escape LIKE special characters so user input is treated literally. */
 export function escapeLikePattern(input: string): string {
+  // prettier-ignore
   return input
-    .replace(/\\/g, "\\\\")
-    .replace(/%/g, "\\%")
-    .replace(/_/g, "\\_")
-    .replace(/\[/g, "\\[");
+    .replaceAll("\\", String.raw`\\`)
+    .replaceAll("%", String.raw`\%`)
+    .replaceAll("_", String.raw`\_`)
+    .replaceAll("[", String.raw`\[`);
 }
 
 export interface SearchOptions {
diff --git a/tests/unit/parsers.test.ts b/tests/unit/parsers.test.ts
index a49f29a..c6495c4 100644
--- a/tests/unit/parsers.test.ts
+++ b/tests/unit/parsers.test.ts
@@ -174,7 +174,8 @@ describe("CsvParser", () => {
   it("escapes pipe characters in cell values", async () => {
     const input = "col1,col2\nfoo|bar,baz";
     const result = await parser.parse(Buffer.from(input));
-    expect(result).toContain("foo\\|bar");
+    // prettier-ignore
+    expect(result).toContain(String.raw`foo\|bar`);
   });
 
   it("replaces newlines in cell values", async () => {
diff --git a/tests/unit/registry/publish.test.ts b/tests/unit/registry/publish.test.ts
index 69bad36..aeff724 100644
--- a/tests/unit/registry/publish.test.ts
+++ b/tests/unit/registry/publish.test.ts
@@ -184,7 +184,8 @@ describe("registry publish", () => {
       addTestRegistry(makeEntry(regName, bareUrl));
 
       const packFile = join(tempDir, "backslash.json");
-      writeFileSync(packFile, JSON.stringify(makePackJson("foo\\bar")), "utf-8");
+      // prettier-ignore
+      writeFileSync(packFile, JSON.stringify(makePackJson(String.raw`foo\bar`)), "utf-8");
 
       await expect(publishPack({ registryName: regName, packFilePath: packFile })).rejects.toThrow(
         /path separators/i,