Codex

Codex

Planting specs and unit tests together into legacy functions without tests — a workflow with Codex CLI, AGENTS.md, and a dry-run verification loop

A concrete workflow for building a real safety net around untested legacy functions by combining Codex CLI's Spec-First approach, AGENTS.md boundary setting, and dry-run validation loops. The core is a two-phase spec-then-test generation strategy that achieves coverage without locking in bugs.

August 22, 202623 min read

How to Eliminate TypeScript API Drift with a Single OpenAPI Spec File — Codex CLI + AGENTS.md

Dismantling 300 `any`-typed codebases step by step with Codex CLI and AGENTS.md

How to Not Fail When Delegating Refactoring to AI — Dependency Analysis, Scope Limiting, and Incremental Commits with Codex CLI

Automatically generating Playwright E2E specs with Codex CLI and feeding failure logs back to let it self-correct

The moment a single PR comment turns into a commit — Codex Cloud Agent × GitHub Actions automation flow

Planting specs and unit tests together into legacy functions without tests — a workflow with Codex CLI, AGENTS.md, and a dry-run verification loop

Building a safety net with AGENTS.md and a diff loop when migrating callback code to async/await using Codex CLI

Understanding the Codex CLI Sandbox Through nsjail Architecture: Isolation Boundaries, Designing AGENTS.md, and Wiring Autonomous Refactoring via codex exec in CI

OpenAI Codex and AGENTS.md — Hierarchical Loading, Sandbox Isolation, and Multi-Repo Delegation

OpenAI Codex 2025 Practical Guide for Frontend Developers — From Terminal to PR

Codex

How to Eliminate TypeScript API Drift with a Single OpenAPI Spec File — Codex CLI + AGENTS.md

Dismantling 300 `any`-typed codebases step by step with Codex CLI and AGENTS.md

How to Not Fail When Delegating Refactoring to AI — Dependency Analysis, Scope Limiting, and Incremental Commits with Codex CLI

Automatically generating Playwright E2E specs with Codex CLI and feeding failure logs back to let it self-correct

The moment a single PR comment turns into a commit — Codex Cloud Agent × GitHub Actions automation flow

Planting specs and unit tests together into legacy functions without tests — a workflow with Codex CLI, AGENTS.md, and a dry-run verification loop

Building a safety net with AGENTS.md and a diff loop when migrating callback code to async/await using Codex CLI

Understanding the Codex CLI Sandbox Through nsjail Architecture: Isolation Boundaries, Designing AGENTS.md, and Wiring Autonomous Refactoring via codex exec in CI

OpenAI Codex and AGENTS.md — Hierarchical Loading, Sandbox Isolation, and Multi-Repo Delegation

OpenAI Codex 2025 Practical Guide for Frontend Developers — From Terminal to PR