fix(tools): keep regex quantifiers in bounded grep

Brace rejection stays on globs and search_files. Drop the test-only bounded-read re-export from the read-file guard.

Author: TheGreatAxios

src/plugins/bounded-grep-fallback.test.ts

@@ -97,6 +97,35 @@ describe("runBoundedGrep", () => {
       ).rejects.toThrow();
     });
   });
+
+  test("accepts regex quantifier braces and still rejects glob braces", async () => {
+    await withTempDir(async (dir) => {
+      await writeFile(join(dir, "q.txt"), "foo\nfooo\n");
+      const out = await runBoundedGrep(
+        { pattern: "foo{1,3}", path: "." },
+        new AbortController().signal,
+        dir,
+      );
+      expect(out).toContain("q.txt");
+      expect(out).not.toContain("brace expansion");
+
+      await expect(
+        runBoundedGrep(
+          { pattern: "foo", path: ".", glob: "*.{ts,txt}" },
+          new AbortController().signal,
+          dir,
+        ),
+      ).rejects.toThrow(/brace expansion is not supported/);
+
+      await expect(
+        runBoundedSearchFiles(
+          { pattern: "*.{ts,txt}", path: "." },
+          new AbortController().signal,
+          dir,
+        ),
+      ).rejects.toThrow(/brace expansion is not supported/);
+    });
+  });
 });
 
 describe("runBoundedSearchFiles", () => {

src/plugins/bounded-grep-fallback.ts

@@ -227,7 +227,7 @@ export async function runBoundedGrep(
 ): Promise<string> {
   signal.throwIfAborted();
 
-  const regex = compileUserRegex(rejectBraceExpansion(args.pattern));
+  const regex = compileUserRegex(args.pattern);
 
   const maxDirectoryEntries =
     limits.maxDirectoryEntries ?? BOUNDED_GREP_MAX_DIRECTORY_ENTRIES;

src/plugins/read-file-guard-plugin.test.ts

@@ -11,12 +11,14 @@ import type {
   ToolResult,
 } from "@intx/types/runtime";
 import {
-  READ_FILE_DEFAULT_MAX_LINES,
   READ_FILE_MAX_BYTES,
   READ_FILE_MAX_LINE_LENGTH,
   READ_FILE_MAX_SCAN_BYTES,
-  READ_FILE_MAX_TOOL_OUTPUT_BYTES,
   readBytesBounded,
+} from "../io/bounded-read.js";
+import {
+  READ_FILE_DEFAULT_MAX_LINES,
+  READ_FILE_MAX_TOOL_OUTPUT_BYTES,
   readFileBounded,
   readFileGuardPlugin,
 } from "./read-file-guard-plugin.js";

src/plugins/read-file-guard-plugin.ts

@@ -25,13 +25,6 @@ import {
   readStreamBounded,
 } from "../io/bounded-read.js";
 
-export {
-  READ_FILE_MAX_BYTES,
-  READ_FILE_MAX_LINE_LENGTH,
-  READ_FILE_MAX_SCAN_BYTES,
-  readBytesBounded,
-} from "../io/bounded-read.js";
-
 export const READ_FILE_DEFAULT_MAX_LINES = 2000;
 /** Refuse tool-output blobs larger than this before bounded paging. */
 export const READ_FILE_MAX_TOOL_OUTPUT_BYTES = READ_FILE_MAX_SCAN_BYTES;