Last character truncated in terminal output (statusline, release notes, etc.)

Description

The last character of text is being truncated/eaten in various terminal outputs, including:

1. Custom statusline output - branch names show mai instead of main, maste instead of master
2. Release notes (/release-notes command) - words truncated like inpu instead of input, Escap instead of Escape, bugfixe instead of bugfixes

Reproduction

1. Set up a custom statusline script that outputs git branch name with ANSI color codes
2. Observe the last character is missing
3. Run /release-notes and look for truncated words

Workaround

Adding a trailing space before the ANSI reset sequence \033[0m preserves the full text:

# Before (truncated):
printf " on \033[33m⎇ %s\033[0m" "$BRANCH"

# After (works):
printf " on \033[33m⎇ %s \033[0m" "$BRANCH"

Likely Cause

Appears to be an off-by-one error when parsing ANSI escape sequences, possibly consuming one character before the escape sequence during color code processing.

Environment

• Claude Code version: 2.0.69
• Platform: Linux (aarch64)
• Terminal: Standard terminal with Nerd Fonts

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