Social Media Ideas for Defensive Programming

My prompt-injection fix caught 0 of 20 attacks. The part I almost didn't build caught all of them.

I built a checker for AI-drafted answers to retirement questions (retirement-answer-check). Before a customer sees a draft, it decides SEND or REVIEW. Plain code checks every numbe...

A Coding Agent's Permissions Need a Negative Test

A runner calls a session "read-only." Fine. Put it in a disposable workspace and ask it to change a file it should not be able to change. You need the runner to deny the attempted...

Kodebits Day 81: Guard Multiple Bindings [FREE]

Practice guard with a short swift challenge.

Pragmatic Premature Optimization

“...premature optimization is the root of all evil…” Donald Ervin Knuth 

Innocent looking Ruby can be dangerous

Originally appeared on Greg Molnar.RubyLLM 2 is in the final stages of being released and when I learned about this, I went to check the documentation to see if there is anything n...

YAGNI in the Age of AI Coding

When I work with Claude or Codex, I often discuss software architecture with them. I’ve noticed a recurring pattern: both are quick to suggest designs that are more complex than th...

Rust is the answer to the wrong question

Originally appeared on Sam Ruby.The below was 100% written by a human. TL;DR: porting an app to another language is merely an anecdote. One shoting an application from scratch opti...

Secure Coding Practices Using AI Tools

Secure Coding Practices Using AI Tools Anonymous (not verified) Wed, 10/14/2026 - 17:46 SDC315 315 SDC SDC315 Secure Coding Practices Using AI...

Confidence Procedures Are Production Code

A clean sample can sound stronger than it is. Someone checks a handful of items, finds no exceptions, and the sentence wants to become broader than the evidence: the process worked...

The Warning That Never Stops the Agent

I went looking for a flag that could cap the amount spent on a session on DeepAgents. The kind of hard spending cap that stops an agent loop before it burns through a budget. What...

You Cannot Trust the AI Code Generator

Originally appeared on naildrivin5.com - David Bryant Copeland's Website.Allowing an AI to write code that you then ship without considerate review causes some anxiety. How do you...

Pre-Action Checks for AI Coding Agents: Tools and Patterns

Pre-action checks for AI coding agents compared: permission modes, PreToolUse hooks, sandboxes, and branch rules, plus where each control fails in practice.

A Security Collection for the Security Chapter

Swift 6 turned working code into a compile error and iOS devs are furious

Everything was working perfectly fine in your application for multiple years. Then one day a simple configuration change of a flag resulted in over 20,000 warnings for you to handl...