rebase-latest-main — Claude Code skill: rebase onto latest main

---
name: rebase-latest-main
description: >-
  Fetch latest origin/main and rebase it onto the current branch, resolving
  conflicts if necessary. Use when the user wants to rebase on main, update
  their branch with latest main, or sync with upstream.
targets:
  - "*"
---

# Rebase Latest Main

Fetch the latest `origin/main` and rebase it onto the current working branch.

## Step 1: Verify Current State

1. Check the current branch:

   ```bash
   git branch --show-current
   ```

2. Ensure there are no uncommitted changes:

   ```bash
   git status --porcelain
   ```

   If there are uncommitted changes, either:
   - Commit them first, or
   - Ask the user how to proceed (commit, stash, or abort)

## Step 2: Fetch Latest Changes

Fetch the latest changes from the remote:

```bash
git fetch origin main
```

## Step 3: Rebase onto origin/main

Start the rebase:

```bash
git rebase origin/main
```

### If rebase succeeds without conflicts:

Proceed to Step 5.

### If conflicts occur:

1. Identify conflicting files:

   ```bash
   git diff --name-only --diff-filter=U
   ```

2. For each conflicting file:
   - Read the file content to understand the conflict
   - Analyze both versions (HEAD and origin/main)
   - Resolve the conflict by choosing the appropriate changes or merging them
   - Stage the resolved file:
     ```bash
     git add <resolved-file>
     ```

3. Continue the rebase:

   ```bash
   git rebase --continue
   ```

4. Repeat until all conflicts are resolved and rebase is complete.

## Step 4: Handle Rebase Failure

If unable to resolve conflicts automatically:

- Show the conflicting files and conflict markers to the user
- Ask for guidance on how to resolve
- If the user wants to abort:
  ```bash
  git rebase --abort
  ```

## Step 5: Push Changes

After successful rebase, force push to update the remote branch:

```bash
git push --force-with-lease
```

Note: `--force-with-lease` is safer than `--force` as it prevents overwriting others' work.

## Step 6: Report Result

Summarize the operation:

1. Number of commits rebased
2. Any conflicts that were resolved
3. Confirmation that the branch is now up-to-date with origin/main