Version Control & Collaboration
Version control — git — is a time machine and a safety net for your code. It lets you go back to any earlier moment, and it is how you work with a coding agent safely.
Four Words to Know
Almost everything in git is built from four simple ideas.
- Commit — a saved snapshot of your project, with a short message saying what changed.
- Branch — a parallel line of work, so you can try something without disturbing the main version.
- Merge — bring a branch’s changes back into the main line.
- History — the full chain of commits, so you can always go back.
A Safety Net for Agents
A coding agent can change many files fast. Commits let you review the diff — exactly what changed, line by line — before you trust it.
Pull Requests & Review
Collaboration in git happens through pull requests: you propose a set of changes, and someone — a teammate, or even future you — reviews the diff before it lands.
Commit Small and Often
Make many small commits with clear messages, rather than one giant one. It keeps agent work reviewable, and it makes mistakes cheap to reverse — you only ever lose the last small step.
Build It
How to implement: initialize a git repository for your project before you write a line of code, and make your first commit. From then on, commit after each working change.
- Weekly AI Tasks tracker — commit before letting an agent make big changes, so you can diff what it did and roll back if needed; the original Weekly Planner even syncs via git.
- Personal brand site — versioning lets you try bold design changes and revert instantly; hosting often deploys straight from the repo.
What you learned
Git gives you commits, branches, merges and history — a time machine and a safety net. Reviewing diffs makes agent work safe; commit small and often; pull requests are how you collaborate.