Single-dash -dangerously-skip-permissions silently enables debug mode

Bug

Running Claude Code with a single dash:

claude -dangerously-skip-permissions

instead of the correct double dash:

claude --dangerously-skip-permissions

causes the session to launch in debug mode (and presumably doesn't actually skip permissions either).

Likely cause

The CLI arg parser interprets -dangerously-skip-permissions as a series of short flags (-d, -a, -n, -g, etc.). One of these single-character flags (likely -d) maps to debug mode.

Expected behavior

Claude Code should either:

1. Recognize the typo and suggest the correct -- prefix, or
2. Reject the unrecognized flag with a clear error message

Environment

• Claude Code version: 2.1.37
• Platform: macOS (Darwin 23.4.0)

Notes

Other users have reported the same confusion on forums — entering debug mode unexpectedly without knowing why.