AI Coding Research

We publish practical research on Codex CLI, AI code review, coding agents, MCP workflows, team adoption, and the habits that hold up in production.

Editorial illustration for MCP training for engineering teams.
AI-Assisted Coding·6 min read

MCP training for engineering teams

Practical mcp training for engineering teams using agentic coding, review guardrails, and connector boundaries.

May 21, 2026·Rogier Muller
Editorial illustration for Codex CLI 0.132.0: workflows and integrations. Teams do not stall because an agent can’t write code.
AI-Assisted Coding·7 min read

Codex CLI 0.132.0: workflows and integrations

Codex CLI 0.132.0 tightens AGENTS.md, MCP, and verification loops for reviewable diffs.

May 20, 2026·Rogier Muller
Editorial illustration for Fast mode is not the default with a team review board, source cards, and verification checkpoints.
AI-Assisted Coding·4 min read

Fast mode is not the default

Fast mode is not the default reframed as an operating guide for MCP-connected AI coding teams that need connector ownership, scopes, and review logs.

May 13, 2026·Rogier Muller
Editorial illustration for Codex Auto-review for CLI Workflows showing a scoped agent workflow, review gates, and documented decisions.
AI-Assisted Coding·3 min read

Codex Auto-review for CLI Workflows

Codex Auto-review for CLI Workflows for engineering teams standardizing Codex without losing ownership, context, or review quality.

May 13, 2026·Rogier Muller
Editorial illustration showing Codex CLI 0.129.0: MCP and reviewable diffs as a repo-centered workflow with source notes and approval checkpoints.
AI-Assisted Coding·3 min read

Codex CLI 0.129.0: MCP and reviewable diffs

An operational memo for Codex CLI 0.129.0, MCP boundaries, reviewable diffs, AGENTS.md instructions, and verification notes.

May 11, 2026·Rogier Muller
Editorial illustration of Recursive agents, guardrails that hold as an engineering handoff with rules, owners, and proof commands.
AI-Assisted Coding·4 min read

Recursive agents, guardrails that hold

A field guide for MCP-connected AI coding adoption, using Recursive agents, guardrails that hold to connect connector ownership, scopes, and review.

May 10, 2026·Rogier Muller
Editorial illustration showing Codex for Chrome workflows as a review workflow with scoped tasks, approval gates, and verification notes.
AI-Assisted Coding·4 min read

Codex for Chrome workflows

A practical Codex workflow note on Codex for Chrome workflows, focused on AGENTS.md, CLI runs, and verification notes for engineering teams.

May 10, 2026·Rogier Muller
Editorial illustration showing Agentic PR Review Workflow as a review workflow with scoped tasks, approval gates, and verification notes.
AI-Assisted Coding·4 min read

Agentic PR Review Workflow

A PR review workflow for agentic coding teams, with connector ownership, scoped tasks, review logs, and human approval lanes.

May 9, 2026·Rogier Muller
Editorial illustration showing Codex CLI 0.130.0: repo loops as a repo-centered workflow with source notes and approval checkpoints.
AI-Assisted Coding·4 min read

Codex CLI 0.130.0: repo loops

An operational memo for Codex teams using Codex CLI 0.130.0: repo loops to make AGENTS.md, CLI runs, and verification notes visible in the repo.

May 9, 2026·Rogier Muller
Editorial illustration showing Agentic Coding Governance for Teams as a repo-centered workflow with source notes and approval checkpoints.
AI-Assisted Coding·4 min read

Agentic Coding Governance for Teams

An operational memo for MCP-connected AI coding teams using Agentic Coding Governance for Teams to make connector ownership, scopes, and review logs.

May 7, 2026·Rogier Muller
Editorial illustration for Codex CLI 0.121.0 for repo workflows showing a scoped agent workflow, review gates, and documented decisions.
Open Source·4 min read

Codex CLI 0.121.0 for repo workflows

Codex CLI 0.121.0 for repo workflows for engineering teams standardizing Codex without losing ownership, context, or review quality.

May 7, 2026·Rogier Muller
Editorial illustration of CI Fixes with Agent Governance as an engineering handoff with rules, owners, and proof commands.
AI-Assisted Coding·4 min read

CI Fixes with Agent Governance

A CI governance guide for agentic coding teams that connects connector ownership, scoped fixes, review logs, and release evidence.

May 6, 2026·Rogier Muller
Editorial illustration of Codex CLI workspace tools as an engineering handoff with rules, owners, and proof commands.
AI-Assisted Coding·4 min read

Codex CLI workspace tools

A field guide for Codex adoption, using Codex CLI workspace tools to connect AGENTS.md, CLI runs, and verification notes to reviewable delivery.

May 6, 2026·Rogier Muller
Editorial illustration for Agentic Coding Governance with a team review board, source cards, and verification checkpoints.
AI-Assisted Coding·4 min read

Agentic Coding Governance

Agentic Coding Governance reframed as an operating guide for MCP-connected AI coding teams that need connector ownership, scopes, and review logs.

May 5, 2026·Rogier Muller
Editorial illustration showing Codex CLI 0.122.0: workflows, permissions, MCP as a review workflow with scoped tasks, approval gates, and verification.
AI-Assisted Coding·4 min read

Codex CLI 0.122.0: workflows, permissions, MCP

A Codex CLI 0.122.0 workflow guide for AGENTS.md instructions, permissions, MCP boundaries, CLI runs, and verification notes.

May 5, 2026·Rogier Muller
Editorial illustration for Agent harnesses need guardrails showing a scoped agent workflow, review gates, and documented decisions.
AI-Assisted Coding·4 min read

Agent harnesses need guardrails

Agent harnesses need guardrails for engineering teams standardizing Codex without losing ownership, context, or review quality.

May 4, 2026·Rogier Muller
Editorial illustration for Codex CLI 0.123.0: workflows that hold up showing a scoped agent workflow, review gates, and documented decisions.
AI-Assisted Coding·4 min read

Codex CLI 0.123.0: workflows that hold up

Codex CLI 0.123.0: workflows that hold up for engineering teams standardizing Codex without losing ownership, context, or review quality.

May 4, 2026·Rogier Muller
Editorial illustration for Guardrails for agentic coding showing a scoped agent workflow, review gates, and documented decisions.
AI-Assisted Coding·4 min read

Guardrails for agentic coding

Guardrails for agentic coding for engineering teams standardizing Codex without losing ownership, context, or review quality.

May 3, 2026·Rogier Muller
Editorial illustration for Codex CLI 0.124.0: tighter loops with a team review board, source cards, and verification checkpoints.
AI-Assisted Coding·4 min read

Codex CLI 0.124.0: tighter loops

Codex CLI 0.124.0: tighter loops reframed as an operating guide for Codex teams that need AGENTS.md, CLI runs, and verification notes.

May 3, 2026·Rogier Muller
Editorial illustration for Always-on review governance showing a scoped agent workflow, review gates, and documented decisions.
AI-Assisted Coding·4 min read

Always-on review governance

Always-on review governance for engineering teams standardizing MCP-connected AI coding without losing ownership, context, or review quality.

May 2, 2026·Rogier Muller
Editorial illustration for Codex GPT-5.5 and browser checks with a team review board, source cards, and verification checkpoints.
AI-Assisted Coding·4 min read

Codex GPT-5.5 and browser checks

Codex GPT-5.5 and browser checks reframed as an operating guide for Codex teams that need AGENTS.md, CLI runs, and verification notes.

May 2, 2026·Rogier Muller
Editorial illustration showing Agent Boundaries That Hold as a review workflow with scoped tasks, approval gates, and verification notes.
Methodology·4 min read

Agent Boundaries That Hold

A boundary-setting guide for agentic coding teams, covering connector ownership, scoped permissions, review logs, and approval checkpoints.

May 1, 2026·Rogier Muller
Editorial illustration for Codex CLI 0.128.0: workflows that hold up showing a scoped agent workflow, review gates, and documented decisions.
AI-Assisted Coding·4 min read

Codex CLI 0.128.0: workflows that hold up

Codex CLI 0.128.0: workflows that hold up for engineering teams standardizing Codex without losing ownership, context, or review quality.

May 1, 2026·Rogier Muller
Editorial illustration showing Eval platforms need governance as a review workflow with scoped tasks, approval gates, and verification notes.
Methodology·4 min read

Eval platforms need governance

A governance memo for AI coding eval platforms, focused on connector ownership, scoped access, review logs, and escalation rules.

April 29, 2026·Rogier Muller
Editorial illustration showing Codex CLI 0.125.0 for reviewable agent loops as a repo-centered workflow with source notes and approval checkpoints.
AI-Assisted Coding·3 min read

Codex CLI 0.125.0 for reviewable agent loops

An operational memo for Codex teams using Codex CLI 0.125.0 for reviewable agent loops to make AGENTS.md, CLI runs, and verification notes visible.

April 29, 2026·Rogier Muller
Editorial illustration showing Agent Boundaries for Teams as a repo-centered workflow with source notes and approval checkpoints.
Methodology·4 min read

Agent Boundaries for Teams

An operational memo for MCP-connected AI coding teams using Agent Boundaries for Teams to make connector ownership, scopes, and review logs visible.

April 28, 2026·Rogier Muller