Codex Knowledge Base
Codex CLI for Frontend Performance Optimisation: Lighthouse MCP, Core Web Vitals Skills, and Agent-Driven Performance Budgets
Only 47% of websites reach Googles good Core Web Vitals thresholds in 2026. INP remains the most commonly failed metric.
Codex CLI for Flutter and Dart Teams: MCP Server, DCM, and Agent-Driven Cross-Platform Development
Flutters widget-based architecture, Darts strong type system, and the frameworks rapid feedback loop (hot reload.
Codex CLI Enterprise Managed Configuration: requirements.toml, managed_config.toml, and Admin-Enforced Policies
Deploying Codex CLI to a team of five developers is straightforward — everyone edits their own config.toml and moves on.
Database Schema Migrations with Codex CLI: Atlas Skills, ORM Workflows, and Agent-Driven Migration Pipelines
Database schema migrations sit at an uncomfortable intersection: they demand precision (a wrong column drop is irreversible), context awareness (what does.
Codex CLI Custom Agent Definitions: Building Specialised Subagents with TOML Configuration
Codex CLI ships with three built-in agent types — default, worker, and explorer — but the real power emerges when you define your own . Custom agent.
Codebase Onboarding with Codex CLI: Using AI Agents to Ramp Up on Unfamiliar Projects
Every developer knows the feeling: you join a new team, clone a repository with 800 files across 40 directories, and spend the next fortnight piecing.
Codex CLI with Azure OpenAI and Microsoft Foundry: Enterprise Agent Deployment on Azure Infrastructure
Codex CLI's first-party GitHub integration makes it trivially easy to start coding with agents — but many enterprise engineering teams run on Azure.
Codex CLI for Vue and Nuxt Teams: Composition API, Pinia, Vitest, and Agent-Driven Component Workflows
Vue 3.6 and Nuxt 4.4 represent the current state of the art for the Vue ecosystem . Combined with Codex CLI v0.125, Vue teams now have a mature.
JavaScript-to-TypeScript Migration with Codex CLI: Gradual Typing Strategies for Large Codebases
Migrating a JavaScript codebase to TypeScript remains one of the most requested — and most dreaded — modernisation tasks in 2026.
Test-Driven Development with Codex CLI: Agent-Driven Red-Green-Refactor Workflows
The single most reliable technique for getting consistently correct output from a coding agent is also one of the oldest ideas in software engineering.