Codex Knowledge Base
Working with Images in Codex CLI: Attaching, Inspecting and Generating Visual Assets
Codex CLI began life as a terminal coding agent focused entirely on text: source files, shell commands, test output. The releases shipped across March 2026.
Codex CLI Feature Flags and TUI Tuning: The Hidden Configuration Layer
Most Codex CLI users configure the obvious knobs — model, approval policy, MCP servers — and leave the rest at defaults.
Codex CLI for dbt and Data Engineering Workflows
Data engineering is one of the fastest-growing segments of software development, yet the Codex CLI ecosystem has produced almost no content targeted at data.
Codex CLI Cost Management: Token Strategy, Model Routing and Quota Control
The biggest surprise in Codex deployments isn't the cost of output tokens — it's the accumulated cost of conversation history.
Codex CLI Commit Attribution: Tagging Agent Work with commit_attribution
When Codex writes code and you commit it, who gets credited? Until early 2026, the answer was: nobody notable.
Background Terminal: Running Dev Servers Alongside Codex
The Background Terminal is one of those features that sounds minor but fundamentally changes how you work with Codex.
Codex App-Server Remote Deployment: WebSocket Transport, Bearer Auth and Health Checks
The Codex app-server is the JSON-RPC layer that powers every Codex surface — the desktop app, the VS Code extension, Xcode 26.3.
The Codex App-Server: Building Custom Integrations with the JSON-RPC Protocol
Every surface where Codex runs — the web app, the macOS desktop app, the VS Code extension, the CLI itself — is powered by the same underlying harness.
Inside the Codex Agent Loop: How Your Agent Actually Works
*Based on Michael Bolins Unrolling the Codex Agent Loop series (January 2026). Source:
The Agentic Pod in Practice: Running Multiple Agent Roles in Your Team
There is a tempting shortcut when you first discover Codex subagents: drop one very large prompt into the orchestrator and hope it handles planning.