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CODEX

91 items

90 posts, 1 guide

Blog
Agent Workflows as Code: Why State Machines Beat Prompt Checklists

Aharness, LangChain's custom harness pattern, and OpenAI's code-first migration all point to the same next step: agent processes need typed gates, validated evidence, and controlled transitions.

Blog
Codex-Maxxing: How to Run Long-Running Codex Workflows Without Losing the Plot

Codex-Maxxing should mean bounded autonomy: AGENTS.md, small worktrees, explicit stop conditions, subagents only when work is separable, and review checkpoints that keep humans in control.

Blog
Local Coding Agent Workspaces Are the New IDE Surface

A new layer is forming around Claude Code, Codex, Copilot CLI, and local memory tools: the local coding agent workspace. It is not the model. It is the bench where agents get supervised.

Blog
OpenAI Daybreak Shows the AppSec Bottleneck Is Patching, Not Finding

OpenAI's Daybreak and Patch the Planet point at the real agentic AppSec shift: security agents only matter when they produce validated, reviewable patches maintainers can actually merge.

Blog
OpenMontage Shows the Real Future of AI Video: Agents, Not Editors

OpenMontage is trending because it treats video production like a repo-shaped agent workflow: scripts, assets, render pipelines, review loops, and coding agents working across the whole process.

Blog
TikZ Editor Is a WYSIWYG LaTeX Figure Tool Built Almost Entirely by Codex

A developer used OpenAI Codex to build a fully open-source WYSIWYG editor for TikZ figures. The technical approach and reception on Hacker News offer a useful case study in what agent-built software looks like when shipped.

Blog
Codex CLI Needs Resource Budgets, Not Just Token Budgets

A trending Codex SQLite WAL bug is a useful warning for every local coding agent: logs, disks, background processes, and telemetry paths need budgets too.

Blog
Codex Logging Bug Can Write Terabytes to Your SSD

A Codex CLI SQLite logging bug showed how global TRACE logs can burn SSD write endurance. OpenAI has now merged fixes, but the incident is a useful local-agent operations lesson.

Blog
How to Use GLM 5.2 and Other Custom Model Providers in Codex

Codex can use GLM 5.2, Mistral, local Ollama, or an internal proxy. Add a model_providers entry to config.toml with a base_url, env_key, and model.

Blog
The Definitive Guide to Loop Engineering in Claude Code and Codex

Goal, loop, routine. Three verbs, two tools, one hard part. A complete field guide to running agentic loops in Claude Code and Codex, the real commands, the patterns people actually run, and the two failure modes that burn money.

Blog
GitHub Copilot Agent Finder: What ARD Means for Third-Party AI Tools in 2026

GitHub's Agent Finder discovers and invokes Claude, Codex, MCP servers, and skills automatically. Here is how the new ARD specification changes AI coding tool integration.

Blog
Omnigent: Databricks' Meta-Harness for Orchestrating Claude Code, Codex, and Custom Agents

Databricks open-sourced Omnigent, a meta-harness that sits above individual agent CLIs so your sessions, policies, and skills are not locked inside any single tool. Here is what it does, how to install it, and where it fits if you already run Claude Code and Codex.

Blog
Codex Gets Computer Use in the EU - and a Clean Claude Code Import

OpenAI's mid-June 2026 Codex drop brings Computer Use to the EEA, UK, and Switzerland and adds selective Claude Code imports plus managed Bedrock auth to the CLI. Here is what actually shipped, verified against the changelog.

Blog
Agent Workspaces Need Filesystem Contracts

GitHub's latest agent workspace trend points at a boring but important primitive: agents need explicit filesystem contracts before they get more tools.

Blog
Codex in June 2026: What Changed Since the Spring Wave

The Codex changelog from April through June 2026 covers GPT-5.5, Goal mode going stable, Sites, a Chrome extension, Amazon Bedrock support, and mobile access from iOS. Here is what actually shipped and what it means in practice.

Blog
Codex Exec in CI: The Practical Guide to Headless OpenAI Agents

codex exec is OpenAI's non-interactive mode for running Codex agents from scripts, CI pipelines, and GitHub Actions - here is how to set it up safely with real flags and working YAML.

Blog
Codex vs Claude Code in 2026: Which AI Coding Agent Should You Use?

Pick Claude Code for ambiguous, multi-file work you want to plan, extend with skills and MCP, and orchestrate across agents. Pick Codex for well-scoped tasks, strong defaults, and one ChatGPT subscription for chat and code. GPT-6, Opus 5.5, and pricing verified September 28, 2026.

Blog
Harness Engineering Makes Tokens a Systems Budget

OpenAI's harness engineering post and new token-use research point to the same lesson: agentic coding teams need token budgets, receipts, and eval loops, not vibes.

Blog
The Model, IDE, CLI, and Agent Framework Changes That Actually Matter

The AI coding market is noisy. The changes that matter are easier to spot when you separate model capability, editor loops, terminal agents, background agents, agent frameworks, UI layers, context, security, and cost.

Blog
The New AI Coding Stack I Would Pick Today

If I were rebuilding my AI coding workflow on May 30, 2026, I would not pick one magic tool. I would pick a layered stack: terminal agent, editor, background agent, Mastra, CopilotKit, MCP, context, security, and cost controls.

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