Codex Knowledge Base
Codex CLI v0.128: Goal Workflows, Configurable Keymaps, and Built-In Self-Update
Version 0.128.0, released on 30 April 2026, is a feature-dense release that finally delivers three capabilities the community has requested for months.
Codex CLI Service Tiers Explained: Flex, Standard, and Fast Mode for Cost and Speed Optimisation
Every codex exec invocation and every interactive session burns tokens. Whether you are running a quick lint fix or a six-hour codebase migration.
Codex CLI and OpenAI Privacy Filter: Preventing PII Leakage in Agent Workflows with Local On-Device Scanning
When a coding agent reads your codebase, it ingests everything in its context window — configuration files, test fixtures, log samples, database seeds.
Codex CLI Named Profiles: A Cookbook of Ready-to-Use Configuration Templates
Named profiles are one of the most underused features in Codex CLI. Instead of juggling CLI flags or maintaining separate config files.
Codex CLI exec Recipes: Practical One-Liners and Shell Patterns for Daily Development
The interactive TUI gets most of the attention, but codex exec is where Codex CLI earns its keep in professional workflows. It runs Codex non-interactively.
Documentation MCP Servers for Codex CLI: Context7, Repomix, and Live Library Lookups
Every coding agent hallucinates API calls eventually. The model's training data has a cutoff, libraries ship breaking changes quarterly, and the agent.
Codex CLI Cyber Safety: Understanding Model Rerouting, Trusted Access, and the False Positive Problem
If your Codex CLI sessions have suddenly slowed down or you have spotted the banner Your conversations have multiple flags for possible cybersecurity.
CSV Batch Processing with spawn_agents_on_csv: Map-Reduce Workflows for Codex CLI
Codex CLI's subagent system handles ad-hoc parallelism well — spawn a few workers, fan out, collect results.
Bedrock Managed Agents Powered by OpenAI: What Server-Side Codex Means for Enterprise Automation
On 28 April 2026, Amazon Web Services and OpenAI jointly announced Bedrock Managed Agents powered by OpenAI — a new capability that runs the OpenAI agent.
From Code Generation to Delegated Execution: The Agentic SDLC and What It Means for Your Codex CLI Workflow
Three papers published between 16 and 29 April 2026 converge on the same thesis: coding agents have moved beyond generating code and into executing work.