Tests are the only fixed point left when the implementation is disposable
Originally published at https://aicoding-guide.com . The more disposable the implementation becomes, the more the spec moves into the tests. That is…
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Claude Code vs Cursor: Terminal Agent or Full IDE?
TL;DR Claude Code wins if you live in the terminal: it plans multi-step refactors, runs its own commands, and works inside any codebase without an e…
I Wrote 238 Specs and Never Read One Again
Nine months ago I started building a VS Code extension in the open, and I ran every change in it through spec-driven development. The tool underneat…
OpenCode Needs Memory, Not Another Background Pipeline
I kept explaining the same project facts to new OpenCode sessions. Not the durable rules that already belonged in AGENTS.md . Those were present. Th…
Pi Coding Agent Review: Minimal, Hackable AI Coding CLI
Pi Coding Agent is a minimal, open-source terminal coding harness that ships with four default tools and leaves most of the behaviour to extensions,…
Best Tools for Managing Parallel AI Coding Agents in 2026
Running one coding agent is easy. Running six is where the workflow problems start showing up. We built one of the tools in this list, Nimbalyst, an…
Claude Code Plan Mode: How I Use It on Real Multi-File Work
The first time I let Claude Code take a serious auth change straight from prompt to patch, it changed nine files. Three of them were subtly wrong. T…
Claude Code MCP Setup: A Practical 2026 Guide
The Model Context Protocol (MCP) is how Claude Code talks to external systems. GitHub, Slack, Linear, your database, your monitoring stack, and your…
The AI Tools I Use Every Day as a Developer (March 2026)
I've been using AI tools professionally for over two years now. In that time, I've tried literally everything — every IDE integration, every API, ev…
My Checklist for Reviewing AI-Generated Code
The agent handed me a function that fetched a Stripe customer, read customer.tax_ids.data[0].value , and used it as the VAT number for an invoice. C…
A Pipeline Where a Second AI Tries to Disprove the First One's Fix
Originally published at blog.whynext.app . Anyone who has had an AI agent do code review knows this. It's pretty good at other people's code. But ha…
Multi-Agent Orchestration Patterns: A Practical Guide
Single-agent AI systems peaked in 2025 — you gave one LLM a prompt, some tools, and a goal, and it did reasonably well on bounded tasks. In 2026, mu…
Best AI Coding Tools in 2026: Full Power Rankings
AI coding tools have changed a lot in 2026. A year ago, GitHub Copilot was the obvious choice. Now you have 7+ serious options — and the right one d…
Google A2A Protocol in 2026: Adoption, Hype, and Reality
Google's Agent2Agent protocol, usually shortened to A2A, had a strange first year. When Google announced A2A in April 2025, the pitch was clear: AI…
Change failure rate is up 30% — here's how to measure yours in an afternoon
A practitioner's guide to calculating your team's CFR without a vendor platform — the DORA formula, the SQL, and the AI-assisted vs human-authored s…
Gemini 3.5 Flash vs Claude Haiku 4.5 vs MAI-Code-1-Flash for Coding
TL;DR Three flash-tier coding models are competing for your API budget right now: Google's Gemini 3.5 Flash (May 19, 2026), Anthropic's Claude Haiku…
Your Team Has 5 CLAUDE.md Files and They All Say Different Things
Your Team Has 5 CLAUDE.md Files and They All Say Different Things You have a team. Everyone uses Claude Code. Everyone wrote their own CLAUDE.md. Al…
5 Developers. 5 Different CLAUDE.md Files. Your AI Agent Has No Consistent Behavior.
5 Developers. 5 Different CLAUDE.md Files. Your AI Agent Behaves Consistently for None of Them. You have a team. Everyone uses Claude Code. Everyone…
Your CLAUDE.md Rules Are Probabilistic: Why Claude Quietly Deprioritizes Some Instructions
The Problem Nobody Warns You About You wrote the rule clearly. You put it in your CLAUDE.md. Never push to production without explicit user confirma…
CLAUDE.md Best Practices: The Complete 2026 Guide
CLAUDE.md Best Practices: What Actually Moves the Needle A CLAUDE.md file is plain markdown that Claude Code reads at the start of every session, an…
LLM Structured Output Validation in Python That Holds Up
Most LLM "structured output" tutorials are unserious. They teach you to ask for JSON politely and then hope the model behaves. That is not validatio…
GitHub Copilot May 2026 Changes: Sign-Ups Paused, Opus Removed, Rate Limits Visible
GitHub Copilot just got a lot more complicated — and not in a good way. If you tried to sign up for Copilot Pro recently and hit a wall, that's not…