Learn Everything

Paths/Claude Engineer/Git with Claude Code / Checkpoints & Isolation

Guided Taskbeginnerubuntu:24.04Ask AI

Use Checkpoints as a Way Back

When a session goes wrong you need somewhere to go back to. Write the checkpoint discipline the team uses.

Validator

⏱ 0:00

IDLE — checks run live as you type commands; submit when done

01Requirements

live checks
  • File ~/.claude/git/checkpoints.md exists○
  • The document states when a checkpoint is taken○
  • The document states how to return to one○

02Walkthrough

4 steps
  1. 01

    Create the git directory

    The git rules live with the rest of the configuration.

    mkdir -p ~/.claude/git
  2. 02

    Write when a checkpoint happens

    A checkpoint before every risky step - a bulk edit, a dependency change, a refactor across files.

    echo '# Checkpoints\n\n## When a checkpoint is taken\n\nBefore every risky step - a bulk edit, a dependency change, a refactor across files. A checkpoint is a commit on a scratch branch, or a stash when the work is not ready.' > ~/.claude/git/checkpoints.md
  3. 03

    Write how to return to one

    A checkpoint you cannot get back to is not a checkpoint. Name the command and the branch.

    echo '\n## How to return\n\n- list the checkpoints with git log on the scratch branch\n- go back with git checkout on the branch, or restore the stash with git stash pop\n- the checkpoint branch is never merged and never pushed\n\n## Commits\n\nA checkpoint commit is a message and nothing else. The real history is written by hand, at the end, when the change is understood.' >> ~/.claude/git/checkpoints.md
  4. 04

    Verify and submit

    cat the rules, then submit for validation.

    cat ~/.claude/git/checkpoints.md

03Stuck?

0 of 3 revealed

Take a hint without losing the lab — each one points at the thing to look at, not at the answer.

04AI Tutor

guides, never solves

Tell me what you're stuck on — I'll nudge, not solve. Which requirement are you looking at?

04Notebook

saved locally in this browser

learner@lab — ubuntu:24.04

↑/↓ recalls commands · Ctrl+Enter submits · type help for the command list