Codex Knowledge Base
Codex CLI Permission Profile Inheritance: Composable Security Policies and List APIs in v0.133
Permission profiles have been part of Codex CLI since early 2026, but they suffered from a composability problem. Every team that wanted a shared base.
Codex CLI for Nix Development: MCP-NixOS, Reproducible Environments, and Flake-Native Agent Workflows
Nix sits at the intersection of package management, environment reproducibility, and system configuration.
Codex CLI for Haskell Development Teams: HLS via LSP-MCP, Type-Driven Agent Workflows, and AGENTS.md for Functional Codebases
Haskell's type system catches entire categories of defects at compile time, but that same rigour makes it an interesting test case for AI coding agents.
Codex CLI in GitHub Actions: Best Practices, Limitations, and Gotchas
The openai/codex-action@v1 GitHub Action transforms Codex CLI from an interactive developer tool into a CI/CD workhorse — reviewing pull requests.
Codex CLI for Embedded and Firmware Development: PlatformIO MCP, Zephyr Workflows, and AGENTS.md for Hardware Teams
Codex CLI articles cover Go, Rust, Python, Swift, Kotlin, Zig — practically every application-level language. Embedded firmware has been conspicuously.
Codex CLI Deployment Verification Patterns: exec Pipelines for Smoke Tests, API Validation, and Infrastructure Drift Detection
Every CI/CD pipeline worth its salt runs pre-merge checks. Far fewer pipelines verify what actually happened after the deployment succeeded. The container.
Codex CLI for Database Schema Migrations: Safe Evolution Patterns with Prisma, Drizzle, and MCP
Database schema migrations sit at the intersection of high consequence and low tolerance for error.
Codex Appshots: Screenshot-Driven Context for Developer Workflows on macOS
Codex has always been strongest when given precise context. The @ mention system, AGENTS.md, and image attachments in the CLI all serve the same purpose.
Intelligence per Token: Why Your Local AI Needs Agentic Loops, Not Bigger Prompts — and What Codex CLI Already Solved
Manolo Remiddis recent video, Your Local AI is Stupid Because Youre Using it Like ChatGPT, articulates a problem that Codex CLIs architecture.
Codex Remote Connections: Mobile Pairing, SSH Hosts, and Enterprise Access Tokens
Codex has quietly evolved from a single-machine terminal tool into a multi-surface development platform. The remote connections system — spanning mobile.