Codex Knowledge Base
AWS Agent Toolkit for AWS: Enterprise MCP, Skills, and Plugins for Codex CLI
On 6 May 2026 AWS launched the Agent Toolkit for AWS, consolidating its scattered agent infrastructure into a single official bundle of MCP servers, skills.
ProgramBench and the Zero-Percent Problem: What a Cleanroom Benchmark Reveals About Architectural Reasoning in Codex CLI
On 5 May 2026, researchers from Meta Superintelligence Labs, Stanford, and Harvard published ProgramBench.
The MCP STDIO Remote Code Execution Flaw: 200,000 Vulnerable Servers and How Codex CLI's Layered Defences Respond
In April 2026, OX Security disclosed an architectural flaw at the heart of Anthropic's Model Context Protocol that enables arbitrary command execution on any.
Vim Modal Editing in the Codex CLI Composer: Configuration, Keymaps, and Terminal-Native Workflows
Codex CLI v0.129.0 shipped a feature that terminal-native developers have been requesting since the project's earliest days.
Codex CLI v0.129 Session Workflow Upgrades: The Redesigned Resume Picker, Raw Scrollback, and Workspace-Aware /diff
Codex CLI v0.129.0, released on 7 May 2026, is a feature-dense release spanning Vim editing, plugin marketplace upgrades, and compaction hooks. Buried.
Codex CLI Behind TLS-Inspecting Proxies: Custom CA Certificates for Enterprise Networks
Enterprise networks rarely let HTTPS traffic pass uninspected. Appliances from Zscaler, Palo Alto Networks, Fortinet, and others terminate TLS connections.
Codex CLI + Snyk MCP Server: Security Scanning for AI-Generated Code and the Agent Supply Chain
AI coding agents generate code at a pace that outstrips traditional review workflows. Codex CLI's sandboxed execution model keeps agent commands contained.
Codex CLI Metaprompting: Using the Agent to Improve Its Own Instructions
Most developers treat their AGENTS.md and skills as write-once configuration. They scaffold an initial file with /init, tweak a few lines, and never touch.
MCP Elicitations in Codex CLI: Human-in-the-Loop Structured Input for Agent Workflows
Until Codex CLI v0.129, MCP servers were strictly one-directional during tool execution: the model called a tool, the server ran it, the result came back.
Codex CLI + JetBrains MCP Server: Giving Your Terminal Agent IDE-Grade Intelligence
Codex CLI is a powerful terminal agent, but it operates blind to the rich static analysis, inspections, and run configurations that JetBrains IDEs.