Programming

Four rounds of review on my own work, and what each caught

Development covered 4 Sep 2026 to 6 Sep 2026 (commit dates). Working alone means nobody hands your change back. Review is not something that happens…

Gating Cloudflare Worker Deployments With CI

Automated build systems often deploy code immediately on merge without waiting for external quality gates to finish. Quick solution: Configure GitHu…

Your Agent Will Refactor a Working Function and Quietly Drop the Edge Case

The diff that looks like a win You hand the agent a 40-line helper that's been in production since 2022. You ask it to "clean this up." Thirty secon…

Your Agent Is Fixing Flaky Tests by Quietly Weakening Them

The 2am green build You wake up to a green CI. The agent closed 14 issues overnight. Two of the commits touch test files: - assert latency < 200…

PR-Agent on Azure DevOps: pipelines, Branch Policies, and webhooks

Azure Repos Git does not run a pipeline on a pull request because of a pr: block in YAML. PR validation is implemented through branch policies, so a…

SonarQube: 92,810 title matches on the platform that holds your source code and your pipeline tokens

SonarQube: 92,810 title matches on the platform that holds your source code and your pipeline tokens A code-quality platform is an unusual security…

The Test Was Wrong. Rewriting.

Did you ever see this line when you let your code agent run wild? “The test was wrong. Rewriting.” Can the genie really make mistakes? Ok, enough jo…

How AI Can Lead to a Decline in Code Quality—and How to Fix It

A practical look at review capacity, hidden edge cases, and habits that help teams maintain quality. The principles in this post apply across progra…

25 of 26 rules in a 755-line AGENTS.md changed nothing

I keep seeing teams treat their AGENTS.md like a config file: write the rules once, assume the agent obeys. So I went looking for anyone who actuall…

I Built a Code Review Agent That Remembers What It Found

I wanted CodeMind to work differently: remember useful lessons from previous reviews and use them when reviewing code again. That idea became CodeMi…

One thing I’ve learned from coding is that the simplest solution is often better than the cleverest one. If I have to spend five minutes explaining my own code a week later, I probably made it more complicated than it needed to be 😅

I'm building a credit score for code health — starting with vibe coders

The fastest-growing codebase in the world right now is code nobody fully read. AI writes it, humans ship it, users depend on it. I think "did the AI…

KVCODERS: The subtle bug in comparing Python output as text

KVCoders has an "Output Practice" mode where students see a Python (or SQL) snippet and have to predict its exact printed output — a real, common CB…

The Validation Rule That Was Itself Invalid

I lost a save cycle last week to a bug that I now think is one of the most under-discussed failure modes in configurable systems: a validation rule…

My code checker was wrong. How I turned its false positives into tests

Disclosure: I'm the author of rebar , the open-source checker this post is about. It is alpha. rebar fails a CI job when a repository breaks a rule.…

Your AI had questions. It answered them in the code.

If you build with AI every day, you know the pattern: the AI delivers, it runs, the tests pass, you nod. A few weeks in, nobody asks why it built th…

From "Automatic Mode" to Code Analysis: What I Learned Analyzing an Edge Case in Java

I have been programming for a while, but recently I made a conscious decision to change my approach: to stop just making code "work" and start askin…

Mutation Testing: Why Code Coverage Isn't Enough

Mutation Testing: Why Code Coverage Isn't Enough How the Stryker tool reveals the true strength of your test suite — using a real business rule with…

Production repository conventions for AI coding agents: a working contract

Production repository conventions for AI coding agents are a working contract between the codebase and the person or agent changing it. They answer…

Building an AST Code Verifier Without NetworkX, GitPython, or Any Dependencies

You end up learning why those packages exist in the first place. For the Zero Dependency Hackathon 2026, I built Proofline, a pure Python static ana…

A Minimal-Context Take-Home Test for AI Code Reviewers: When More History Hurts

Recent discussions about AI assistants that trust every archived comment raise a practical question for engineering teams: does an AI code reviewer…

AI Code Review Packet: Make Agent-Written Pull Requests Easy to Trust

AI can write a clean 900-line pull request before lunch. The hard part is not generating the code anymore; it is helping a tired reviewer understand…

Four Java Bugs That Bad Indentation Hides in Plain Sight

javac does not care what your code looks like. Whitespace carries zero meaning in the Java Language Specification, so the compiler reads your file a…

Our AI code reviewer problem wasn't that it was wrong. It was that it wouldn't shut up

I've been thinking about a problem with AI code review that I don't see discussed enough: a reviewer can be technically correct and still make the w…

An AI's “Done” Can't Be Trusted — Quality Gates That Stop False Completion With Evidence

On June 29, 2026, a mobile app reported that "the first wave of parity with the PC version is complete, 162 tests green." When we actually touched i…

Two Pieces of Code, Same Answer — Which One Should You Write?

Introduction This is my first post. It has been one year since I became an engineer with no prior experience. Now, once you become an engineer and s…

Cleaning Up Feature Flags: The Art of Not Leaving a Mess

You said you'd remove that flag after launch. You lied. It's been six months and the flag is still in appsettings.json , the if statement is still i…

AI vs CI: Nobody Told the Pipeline

CI is so commonplace these days, we don’t often think about why it’s there. And that reasoning really matters these days, because of how we use it.…

Comprehension debt: what AI-written code actually costs

Originally published at fathohm.dev . The term "comprehension debt" is Jason Gorman's, from September 2025, carried by Addy Osmani in March 2026 — t…

Code Review From the Terminal and CI, No MCP Client Required

A month ago I shipped aicraft-code-review , an MCP server that reviews code locally. This week I added a CLI mode — because not everyone wants to wi…