Git Commit Messages as Diary Entries

Making Version Control Tell Your Story

Ken Mendoza Oregon Coast AI Ken's Programming Musings

I have a confession: I talk to my commits like they're old friends. Not out loud (usually), but in way I craft each message with care, knowing that someday—maybe next week, maybe next year—someone (probably me) will be desperately grateful for breadcrumbs I'm leaving behind.

My ADHD brain tends to jump between contexts like a caffeinated seagull, and my INTP side craves understanding "why" behind everything. Over years, I've discovered that git commit messages aren't just version control metadata—they're tiny time capsules that capture not just what I changed, but entire story of my thinking process.

Cryptic Commit Wasteland

We've all been there. You're diving into a codebase (sometimes your own from six months ago), and you encounter commits like these:

❌ Vague Vanisher
fix bug
❌ Panic Pusher
ASAP URGENT FIX
❌ Sarcastic Surrenderer
idk this should work now
❌ Existential Crisis
why does anything even matter

These commits are like receiving a postcard that just says "Weather: yes." They technically convey information, but leave you more confused than when you started. It's archaeological work trying to piece together what Past Ken was thinking at 2 AM on a Tuesday.

Diary Entry Epiphany

breakthrough came during a particularly frustrating debugging session. I was trying to understand why I'd made a specific change to our authentication flow, and commit message was just "auth updates." I spent three hours reverse-engineering my own thinking.

That's when it hit me: What if I treated each commit message like a diary entry? Not "Dear Diary, today was okay" kind, but kind where you capture your thought process, your reasoning, your context, and even your emotions about change.

Three Questions That Changed Everything

Before writing any commit message, I now ask myself three questions:

1

What was I trying to solve?

problem or feature request that motivated this change.

2

Why did I choose this approach?

reasoning behind solution, especially if there were alternatives.

3

What would I want to know if I encountered this later?

context that would make this change make sense to a future developer.

Transformation Stories: Before & After

Bug Fix Revelation

❌ Before: Cryptic Fix
fix login issue
✅ After: Story Teller
Fix session timeout causing silent login failures
Users were getting logged out mid-session but UI wasn't
reflecting this state, leading to failed API calls without
clear error messages.
Added explicit session validation before each API call
and proper redirect to login when session expires.
Fixes #234 - "Users see blank pages after inactivity"

Refactor Reasoning

❌ Before: Mysterious Refactor
refactor components
✅ After: Thoughtful Architect
Extract common form validation logic into reusable hooks
Three different forms were duplicating same validation
patterns, making bug fixes require changes in multiple places.
Created useFormValidation hook that handles:
- Email format validation
- Required field checking
- Error message display
This reduces code duplication by ~200 lines and makes
validation behavior consistent across app.

Why This Matters More with ADHD

My ADHD brain means I'm constantly context-switching. What felt crystal clear when I was deep in a coding session becomes completely opaque when I return to it after working on three other features. Detailed commit messages are like leaving myself a trail of breadcrumbs through forest of my own thoughts.

ADHD-Friendly Commit Practices I've Developed:

  • Context anchors: I include ticket numbers, dates, or related PR links
  • Decision documentation: I explain why I chose approach A over approach B
  • Future flags: I note if something is temporary or needs follow-up
  • Emotional context: Sometimes I note if I was debugging under pressure

My Commit Message Template

Here's template that has saved me countless hours of "What was I thinking?" moments:

# Subject line: Imperative mood, 50 chars or less
Add user authentication middleware for API routes

# Body: Explain what, why, and any important context
Previously, API routes were checking authentication
inconsistently, with some endpoints missing checks entirely.
This created security vulnerabilities and made it difficult
to audit which routes were properly protected.

This middleware ensures all /api routes require valid
authentication tokens, with clear error responses for
unauthorized requests.

Considered using a decorator pattern but chose middleware
for better separation of concerns and easier testing.

Next steps: Update documentation and add rate limiting.

Fixes #456, Related to PR #123

When Git History Becomes a Novel

With thoughtful commit messages, your git log transforms from a cryptic timeline into a readable story of problem-solving. Here's what a feature development journey looks like:

a1b2c3d Initial user dashboard wireframe
Started with basic layout to validate UX approach with team. Using CSS Grid for responsive design. Will add interactivity next.
b2c3d4e Add real-time data updates to dashboard widgets
Implemented WebSocket connection for live metrics updates. Chose WebSockets over polling for better performance with large user bases. Includes connection retry logic.
c3d4e5f Fix memory leak in dashboard WebSocket connections
WebSocket connections weren't being properly cleaned up when users navigated away, causing memory usage to grow over time. Added cleanup in useEffect return and component unmount.
d4e5f6g Dashboard feature complete - ready for testing
All requirements met: real-time updates, responsive design, error handling, and accessibility compliance. Performance tests show <100ms load times. Ready for QA review.

Reading through this history, any developer (including Future Ken) can understand not just what changed, but entire thought process, challenges encountered, and decisions made along way.

Unexpected Gifts of Commit Storytelling

Debugging Becomes Archaeology

When bugs appear, git blame becomes a treasure map. Instead of cryptic change logs, you get full story of why code exists, making root cause analysis much faster.

Onboarding Magic

New team members can read through git history like a technical novel, understanding not just what codebase does, but how it evolved and why decisions were made.

Time Travel Documentation

Your past self becomes your best documentation writer. No need to maintain separate docs when your commit history tells complete story.

Code Review Empathy

Reviewers can understand your thinking process, making code reviews more collaborative and less confrontational. They see journey, not just destination.

Commit Messages as Messages in Bottles

Living on Oregon Coast, I often think of commit messages as messages in bottles, cast into ocean of time. Someday, someone (often Future Ken) will find that bottle washed up on shore of a debugging session, and message inside needs to be clear enough to help them navigate safely back to shore.

Just like how a good message in a bottle includes not just "Help!" but also your location, situation, and what kind of help you need, a good commit message provides context, reasoning, and enough detail to make change meaningful to whoever discovers it later.

30-Day Commit Story Challenge

Here's my challenge to you: For next 30 days, treat every commit message like you're writing a letter to a future developer who needs to understand your thinking. Not just what you changed, but why you changed it and what you learned in process.

Your Commit Message Diary Checklist:

  • What problem did this solve?
  • Why did I choose this approach over alternatives?
  • What context would help someone understand this change?
  • Are there any gotchas or follow-up items?
  • Would this message help me if I found it in 6 months?

From Our Coast to Yours

In a world of increasingly complex codebases and distributed teams, our commit messages are often most honest form of documentation we have. They're written in moment, capturing our real thoughts and reasoning without polish of formal documentation.

So next time you're about to type "fix bug" or "update code," pause for a moment. Think of developer who will encounter this change six months from now—someone who might be you on a Tuesday morning when your coffee hasn't kicked in yet. What story do you want to tell them? What breadcrumbs do you want to leave on their path through your code?

Your version control history is more than a timeline—it's story of your problem-solving journey. Make it a story worth reading.

Programming Philosophy, Git, Documentation, ADHD, Version Control
8 min read