Project Session Management

If you're working on larger projects that span multiple Claude sessions, this handles the handoff problem. It maintains a SESSION.md file with git checkpoints and concrete next actions, so you can pick up where you left off without re-explaining context. The skill distinguishes between phases (units of work with exit criteria) and sessions (context windows), which is actually useful since a single implementation phase often takes multiple conversations. Works best after initial planning is done and you're in the implementation, verification, debugging cycle. With 383 installs and solid audit passes, it's clearly solving a real pain point for people building anything beyond single-session scope.