krammegitfixup

name	krammegitfixup
description	Intelligently fixup unstaged changes into existing commits on the current branch. Maps each changed file to its most recent commit, validates (build/test/lint), creates fixup commits, and autosquashes. Use when this capability is needed.
metadata	{"author":"abildtoft"}

Fixup Changes

Intelligently fixup unstaged changes into existing commits on the current branch, with validation.

Workflow

Step 0: Check for Custom Instructions

Before proceeding with the workflow, check if the user provided additional instructions after the command:

1. Parse arguments and instructions — If the user wrote /kramme:git:fixup <something>:

   • Extract known flags (--skip-tests, --skip-build, --skip-lint, --skip-all, --no-confirm, --base=<branch>)
   • Any remaining text after flags is treated as custom instructions

2. Apply custom instructions throughout — If the user provided instructions, keep them in mind when:

   • Deciding which files to include/exclude from the fixup
   • Handling validation failures or edge cases
   • Creating fixup commit groupings
   • Presenting options to the user
   • Any other decision points in the workflow

Examples of custom instructions:

• "Only process backend files" → Filter to files in Connect/Connect.Api/
• "Skip the frontend changes for now" → Exclude files in ng-app-monolith/
• "Group all test file changes together" → Create a single fixup for test files
• "Be quick, I've already validated" → Implies --skip-all behavior

Step 1: Validate Prerequisites

1. Detect base branch:

   Try these methods in order:

   1. Check origin/HEAD (most reliable - reflects remote's default branch):

      git symbolic-ref refs/remotes/origin/HEAD 2>/dev/null | sed 's@^refs/remotes/origin/@@'
      

   2. If that fails, check if main branch exists locally:

      git show-ref --verify --quiet refs/heads/main
      

   3. If that fails, check if master branch exists locally:

      git show-ref --verify --quiet refs/heads/master
      

   4. If none work, fail with a clear error:

      "Could not auto-detect base branch. Use --base=<branch> to specify. Run git branch to see available branches."

   The --base=<branch> option always overrides auto-detection.

2. Check for staged changes:

   git diff --cached --name-only
   

   If staged changes exist, use AskUserQuestion to ask whether to:

   • Include them with the other changes (they'll be fixed up too)
   • Abort so user can handle them separately

   If including staged changes, unstage them first (git reset HEAD <files>) so they flow through the normal mapping process.

3. Check for unstaged changes:

   git diff --name-only
   

   If no changes to process (no unstaged, and no staged being included), inform user and exit.

4. Check branch has commits ahead of base:

   git log <base>..HEAD --oneline
   

   If no commits, inform user this command requires existing commits to fixup into.

Step 2: Run Validations

Before creating any commits, validate the changes won't break the build.

IMPORTANT: Reference the project's CLAUDE.md or AGENTS.md to find the correct commands for:

• Building the project
• Running tests (unit tests, integration tests)
• Linting and formatting checks

Run validations scoped to the changed files:

• Identify which files changed and their type (backend, frontend, tests)
• Run build for affected projects
• Run tests related to the changed files (not full test suite)
• Run lint/format checks on changed files

Use check-only commands (e.g., lint not lint --fix, format:check not format) to avoid modifying files mid-workflow.

If validation finds issues, use AskUserQuestion to ask the user:

• Fix and continue - Apply fixes (run auto-fix commands), then re-validate and continue. The fixes become part of the unstaged changes to fixup.
• Continue anyway - Proceed despite issues (user takes responsibility)
• Abort - Stop and let user fix manually

Do NOT silently proceed with validation failures.

Step 3: Map Changes to Commits

For each changed file (modified, deleted, or renamed), find which commit on the branch most recently touched it:

git log <base>..HEAD --oneline -- <file_path>

Take the first (most recent) commit from the output as the target for that file.

Note: Deleted files work the same way - they get fixed up into the commit that originally added/modified them. If a file was added and is now being deleted, the fixup will remove it from that commit entirely (as if it was never added).

Create a mapping and present everything in one view:

Fixup Plan (base: main):

Matched files:
  → abc1234 "Add feature X"
    - src/file1.ts (modified)
    - src/helper.ts (deleted)
  → def5678 "Fix bug Y"
    - src/file3.ts (modified)

⚠ Orphan files (no matching commit):
  - src/newfile.ts
  - src/unrelated.ts

These orphan files were not modified by any commit on this branch.
They cannot be fixed up and will need a separate commit.

Step 3b: Handle Orphan Files

If orphan files exist, use AskUserQuestion to let the user decide:

Why this happens:

• New file that should be a separate commit
• File from a different feature that was accidentally modified
• File that was reverted and re-modified

Options:

1. Create separate commit - Ask for commit message, create new commit for these files
2. Skip these files - Leave them unstaged, proceed with fixups only
3. Abort - Don't proceed, let user investigate

When --no-confirm is set, orphan files are automatically skipped.

Step 4: Create Fixup Commits

For each target commit, stage the relevant files and create a fixup commit:

git add <files...>
git commit --fixup=<commit_sha>

Step 5: Autosquash Rebase

Run an autosquash rebase to squash fixup commits into their targets. Use the branch fork point (merge-base) so this rewrites only branch commits and does not pull newer base-branch commits into the feature branch:

FORK_POINT=$(git merge-base HEAD <base>)
GIT_SEQUENCE_EDITOR=true git rebase -i --autosquash "$FORK_POINT"

If the rebase succeeds, proceed to Step 6.

If the rebase fails (conflicts), see Error Handling below.

Step 6: Update REVIEW_OVERVIEW.md (if present)

If REVIEW_OVERVIEW.md exists in the project root:

1. Update commit hashes — For each finding that was addressed, update its **Commit:** field with the short hash of the commit containing the fix
2. Do not commit this file — REVIEW_OVERVIEW.md is a working document for tracking review responses; it should never be committed

Step 7: Report Results

Show the final commit log:

git log <base>..HEAD --oneline

Confirm success and show any remaining unstaged/untracked files.

Remind user: If this branch was already pushed, they'll need to force push:

git push --force-with-lease

Error Handling

Git lock file exists

Remove .git/index.lock and retry once. If it persists, inform user to close other git processes (VS Code, IDE extensions, file watchers, etc.)

Validation failures

Stop immediately. Do not create any commits. Report the specific failures.

Rebase conflicts

If the rebase fails mid-way due to conflicts:

1. Detect failure: Check exit code of rebase command, or check if .git/rebase-merge directory exists.

2. Abort automatically: Run git rebase --abort to restore the branch to its pre-rebase state.

3. Inform user clearly:

   "Rebase failed due to conflicts between fixup changes and target commit."

   "The branch has been restored to its pre-rebase state."

   "Your fixup commits are NOT lost - they still exist on the branch."

4. Provide resolution options:

   • Retry manually: User can run git rebase -i --autosquash "$(git merge-base HEAD <base>)" and resolve conflicts themselves
   • Abandon fixups: User can remove the fixup commits with git reset HEAD~N (where N = number of fixup commits created)

Options

Arguments: $ARGUMENTS

Flags:

• --skip-tests - Skip running tests (use when you've already validated)
• --skip-build - Skip build validation
• --skip-lint - Skip lint/format validation
• --skip-all - Skip all validations
• --no-confirm - Skip confirmation prompts (orphan files are skipped automatically)
• --base=<branch> - Override auto-detected base branch

Custom Instructions: Any text after the command (and flags) is treated as custom instructions that influence the workflow. These instructions are applied contextually throughout the process.

Examples

# Standard usage - auto-detect base, validate and fixup
/kramme:git:fixup

# Skip all validations (already tested manually)
/kramme:git:fixup --skip-all

# Skip only tests
/kramme:git:fixup --skip-tests

# Explicit base branch
/kramme:git:fixup --base=develop

# Non-interactive (for scripting)
/kramme:git:fixup --skip-all --no-confirm

# With custom instructions
/kramme:git:fixup Only process the API controller changes
/kramme:git:fixup --skip-tests Focus on the frontend, ignore backend files
/kramme:git:fixup Group related changes together even if they touched different commits

Notes

• Base branch is auto-detected from origin/HEAD, then main, then master
• If auto-detection fails, use --base=<branch> to specify explicitly
• Handles modified, deleted, and renamed files
• Staged changes prompt for handling before proceeding
• Orphan files (not touched by branch) require user decision or are skipped with --no-confirm
• Autosquash rebase uses merge-base with the base branch, so fixup does not implicitly rebase onto the latest base tip
• After rebase, force push is required if branch was previously pushed
• Validation commands are project-specific - refer to CLAUDE.md/AGENTS.md

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