feat: Auto-name tmux sessions after current directory

[evansenter]

Summary

• Add session-created hook to automatically name new tmux sessions after the current directory
• Makes it easier to identify sessions when working on multiple projects

Test plan

• Start tmux in a project directory (e.g., ~/projects/myapp)
• Verify session is named after the directory (e.g., myapp)
• Verify duplicate names get a suffix appended

🤖 Generated with Claude Code

[claude]

Code Review

Thank you for this contribution! The feature of auto-naming tmux sessions after the current directory is useful. Here's my feedback:

✅ Strengths

• Clear intent: The feature solves a real usability problem when working with multiple projects
• Minimal change: Only 3 lines added, keeping the implementation simple
• Good placement: Located with other auto-naming configuration in home/.tmux.conf:22-23
• Follows conventions: Consistent with the repository's minimal, focused approach

🐛 Potential Issues

1. Shell expansion timing issue (Critical)

The current implementation has a bug. The command substitution will be evaluated when tmux parses the config file, not when the hook runs. This means all sessions will get the same name (the directory where tmux was first started), and the pane_current_path variable won't be expanded correctly.

Fix: Escape the dollar sign to defer evaluation.

2. Name collision handling

The PR description mentions duplicate names get a suffix appended, but the current implementation doesn't handle this. Tmux will fail silently if a session with that name already exists. Consider testing behavior when creating multiple sessions from directories with the same basename.

3. Special characters in directory names

Directory names with spaces, quotes, or other special characters could break the command. Additional quoting may be needed.

🧪 Testing Recommendations

Based on the test plan, I'd also add:

• Test with directory names containing spaces (e.g., ~/my project)
• Test with special characters (e.g., ~/project-v2.0)
• Test creating multiple sessions from directories with the same basename
• Test creating a session when one with that name already exists
• Verify the hook doesn't interfere with tmux-resurrect session restoration

📝 Documentation

Consider updating CLAUDE.md to document this feature in the Tmux Configuration section, similar to how other tmux features are documented.

Priority

The shell expansion issue is critical and should be fixed before merging. The other concerns are lower priority but worth considering.

Would you like me to provide a corrected version of the implementation?