Toggle English-only mode. Forces English input and provides grammar feedback. Use when: '/english', 'english mode', 'toggle english'.
Toggle English-only mode for the current project. When enabled:
!jq -r '.["english-mode"] // false' "$CLAUDE_PROJECT_DIR/.claude/features.json" 2>/dev/null || echo "false"
Based on "$ARGUMENTS" and the current state above:
To enable: ensure $CLAUDE_PROJECT_DIR/.claude/features.json exists and has "english-mode": true. Use jq to merge the key without overwriting other keys. Create the file if it doesn't exist.
To disable: set "english-mode": false in the same file. If the file has no other truthy keys, you may delete it.
After toggling, report the new state concisely: