Methodology·6 min read
Stop Using CSS Selectors in E2E Tests
CSS selectors make agent-written E2E tests brittle. Use stable, user-facing hooks instead.
April 6, 2026·Rogier Muller
Research
We publish practical research on agentic coding, team adoption, multi-agent workflows, and the habits that hold up in production.
AI Coding·5 min read
A Better Bug-Finding Prompt
A practical prompt pattern for surfacing more bugs in agentic coding workflows.
April 5, 2026·Rogier Muller
Methodology·6 min read
Agentic Team Workflows
Practical workflow patterns for teams using coding agents on real engineering tasks.
April 4, 2026·Rogier Muller
AI Coding·5 min read
Tools That Keep Working
A practical look at AI coding tools that stay useful after the demo.
April 3, 2026·Rogier Muller
AI Coding·5 min read
Composer Layers in Agentic Coding
How composer layers turn intent into edits, and where the workflow still breaks.
April 2, 2026·Rogier Muller
AI Coding·5 min read
Headless Agent Runs for Scripts and CI
Run coding agents in scripts, CI, and automation with checks that keep output reviewable.
April 1, 2026·Rogier Muller
AI Coding·5 min read
Long-Running Agent Loops
Why long-running coding agents help on iterative, verification-heavy tasks.
March 31, 2026·Rogier Muller
AI Coding·6 min read
Agent Loops for Messy Code
Practical patterns for keeping coding agents useful on messy tasks.
March 30, 2026·Rogier Muller
AI Coding·5 min read
AI Coding Tools That Last
A practical look at which AI coding tools stay useful after the first demo.
March 29, 2026·Rogier Muller
AI Coding·5 min read
Agent Teams Skip Prompt Tuning
Agentic teams get better results from workflow design than from manual prompt tuning.
March 28, 2026·Rogier Muller
Methodology·6 min read
Docs That Return Markdown
Why docs return markdown for agents, and how to do it without hurting human readers.
March 27, 2026·Rogier Muller
AI Coding·5 min read
Browser Checks for Coding Agents
Let coding agents verify UI changes in a real browser, then patch based on what they see.
March 26, 2026·Rogier Muller
AI Coding·4 min read
Keep the Stack Current, Keep Agents in Bounds
A practical look at refreshed dependencies and short rules that make AI coding easier to review.
March 25, 2026·Rogier Muller
AI Coding·5 min read
Defensive Code from Agentic Tools
Why some coding agents add extra checks, where that helps, and where it slows reviews.
March 24, 2026·Rogier Muller
AI Coding·5 min read
Browser Choice Shapes Agent Loops
Browser backend choice can change agent speed, retries, and recovery.
March 23, 2026·Rogier Muller
AI Coding·5 min read
AI Coding Wrappers That Hold Up
When wrappers help, where they fail, and how to test them on real coding work.
March 22, 2026·Rogier Muller
AI Coding·5 min read
Subagents Need Separate Prompts
Give each subagent one job, one output, and one stop rule.
March 20, 2026·Rogier Muller
AI Coding·5 min read
Global Rollout for AI Coding Tools
A practical look at rollout patterns for AI coding tools across regions and teams.
March 18, 2026·Rogier Muller
AI Coding·3 min read
Maintaining Reliable AI Coding Workflows
Practical steps and tradeoffs for keeping AI coding workflows effective with agent orchestration.
March 16, 2026·Rogier Muller
AI Coding·4 min read
Patterns for Reliable AI Coding Workflows
Workflow patterns that help engineering teams get consistent results from AI coding tools.
March 15, 2026·Rogier Muller
AI Coding·3 min read
Using Async Subagents to Speed Up AI Coding Workflows
Background async subagents run tasks in parallel, improving AI coding workflow efficiency.
March 14, 2026·Rogier Muller
AI Coding·5 min read
How Returning Markdown from Docs Shapes Agentic Coding Workflows
A practical examination of how engineering teams adapt documentation to return markdown for coding agents, focusing on token efficiency, implementation steps, tradeoffs, and limitations.
March 13, 2026·Rogier Muller
AI Coding·5 min read
MCP for Faster Iteration
A practical examination of how integrating Playwright MCP into agentic coding workflows affects iteration speed, implementation steps, tradeoffs, and limitations for engineering teams working with coding agents.
March 12, 2026·Rogier Muller
AI Coding·6 min read
Agent-Readable Docs in Markdown
A practical look at returning markdown from internal docs for coding agents: why teams do it, how to implement it, and what it actually changes in agentic workflows.
March 11, 2026·Rogier Muller
Codex Features·5 min read
Faster Loops With Playwright MCP
A concrete look at how to wire Playwright MCP into agentic coding workflows, what it actually changes for teams, and where the limits are.
March 9, 2026·Rogier Muller
AI Coding·5 min read
When AI Coding Tools Regress
A practical look at how AI coding agents change workflows, quality bars, and expectations for engineering teams—and what to do when a core model quietly gets worse.
March 7, 2026·Rogier Muller
AI Coding·12 min read
Running Multi-Agent Teams
A practical look at how an "Opus 4.6" style orchestrator could coordinate a fleet of "Codex 5.3" coding agents, what this changes for engineering teams, and how to implement it without breaking your workflow.
March 1, 2026·Rogier Muller