[BUG] Claude Code Read tool fails with special characters in filenames

Environment:

• Platform: Claude Code (VSCode plugin)
• Model: Claude Sonnet 4 (claude-sonnet-4-20250514)
• OS: macOS Darwin 24.5.0
• Claude Code version: 1.0.16
• Date: June 7, 2025

Bug Description:
The Read tool cannot read files with special characters in their
names, particularly French characters.

Reproduction Case:

• File name: Capture d'écran 2025-06-07 à 10.26.24.png
• Full path: `/Users/[user]/Documents/project/capture/Capture

d'écran 2025-06-07 à 10.26.24.png`

• Error: "File does not exist" even though file exists and is

visible in LS tool

Problematic Characters:

• Curved apostrophe (')
• Accented characters (é, à)
• Colons (:)
• Multiple spaces and dots

Workaround:
User had to rename file to Cap1.png (ASCII-only) for Read tool
to work.

Impact:

• Forces users to rename files with non-ASCII characters
• Particularly affects French-speaking users
• Disrupts natural workflow with screenshots and localized

filenames

Expected Behavior:
Read tool should handle UTF-8 encoded filenames with special
characters properly.