Codex Knowledge Base
Codex CLI Doctor: The New First-Class Diagnostics Command in v0.131.0
Codex CLI v0.131.0, released on 18 May 2026, introduces codex doctor — a single subcommand that runs support-ready diagnostics across six categories.
Codex CLI for Database Schema Migrations: Branch-Based Safety with Neon and Prisma MCP Servers
Database schema migrations remain one of the highest-risk operations in production systems.
Codex CLI for Consumer-Driven Contract Testing: Pact Generation, Provider Verification, and CI Contract Gates
Consumer-driven contract testing solves one of the thorniest problems in microservice architectures: how do you know your services are compatible before.
Codex CLI for Bazel Monorepo Workflows: MCP Server Integration, Remote Builds, and AGENTS.md Conventions
Bazel monorepos present a unique challenge for AI coding agents. The build graph is explicit and hermetic, the dependency model is declarative, and a single.
Codex CLI as an MCP Server: Exposing Agent Capabilities to the Agents SDK and Other MCP Clients
Most developers know Codex CLI as an MCP client — it connects to external MCP servers like Linear, Supabase, or Apollo to pull tools into its agent loop.
Codex CLI Agent Improvement Loops: Closing the Harness Engineering Flywheel with Traces, Evals, and Automated Handoffs
Most teams treat their agent configuration — AGENTS.md, skills, hooks, tool policies — as a write-once artefact. They tune it until the agent stops.
Multi-Agent Orchestration Patterns for Codex CLI
Published: 2026-05-18 Source: Addy Osmani — The Code Agent Orchestra (
Codex CLI for TypeScript 6.0 Strict Mode Migration: Incremental Type Safety, Zod Schema Generation, and CI Enforcement
TypeScript 6.0 shipped on 23 March 2026 with strict: true enabled by default. For teams upgrading from 5.x — where strict mode was opt-in — this change.
Codex CLI for Release Management: Changelog Generation, Semantic Versioning, and Automated Release Pipelines
Release management remains one of the most error-prone manual processes in software engineering. Developers forget to bump versions, write vague changelog.
Codex CLI with Linear MCP: Sprint Automation, Issue Decomposition, and Cycle-Driven Development
Senior developers who live in the terminal face a context-switching tax every time they tab into a browser to check sprint status, decompose an epic.