fix(tools): Handle special characters in file paths for glob and read_many_files (#6507)

Co-authored-by: Jacob Richman <jacob314@gmail.com>

packages/core/src/tools/read-many-files.ts

@@ -13,8 +13,9 @@ import {
 } from './tools.js';
 import { SchemaValidator } from '../utils/schemaValidator.js';
 import { getErrorMessage } from '../utils/errors.js';
+import * as fs from 'fs';
 import * as path from 'path';
-import { glob } from 'glob';
+import { glob, escape } from 'glob';
 import { getCurrentGeminiMdFilename } from './memoryTool.js';
 import {
   detectFileType,
@@ -245,18 +246,27 @@ ${finalExclusionPatternsForDescription
       const workspaceDirs = this.config.getWorkspaceContext().getDirectories();
 
       for (const dir of workspaceDirs) {
-        const entriesInDir = await glob(
-          searchPatterns.map((p) => p.replace(/\\/g, '/')),
-          {
-            cwd: dir,
-            ignore: effectiveExcludes,
-            nodir: true,
-            dot: true,
-            absolute: true,
-            nocase: true,
-            signal,
-          },
-        );
+        const processedPatterns = [];
+        for (const p of searchPatterns) {
+          const normalizedP = p.replace(/\\/g, '/');
+          const fullPath = path.join(dir, normalizedP);
+          if (fs.existsSync(fullPath)) {
+            processedPatterns.push(escape(normalizedP));
+          } else {
+            // The path does not exist or is not a file, so we treat it as a glob pattern.
+            processedPatterns.push(normalizedP);
+          }
+        }
+
+        const entriesInDir = await glob(processedPatterns, {
+          cwd: dir,
+          ignore: effectiveExcludes,
+          nodir: true,
+          dot: true,
+          absolute: true,
+          nocase: true,
+          signal,
+        });
         for (const entry of entriesInDir) {
           allEntries.add(entry);
         }