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CODEX
OpenAI Codex - CLI, IDE integration, and how it compares to Claude Code and Cursor.
119 resources - 116 posts, 2 tools, 1 guide
Blog Posts
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Codex CLI 0.169: codex exec Trust, Side Chats and Model Providers
Codex CLI 0.169.0 keeps project config and MCP servers off in untrusted directories under codex exec, adds --trust, side-chat tabs and a model provider picker.
6 min read
Codex Training Setting Re-Enabled? Two Switches to Check
Developers report Codex model training turning itself back on. What OpenAI documents, the second "Include environments" switch most people miss, and a five-minute check.
6 min read
OpenAI Pando: The Git Backend Built for Codex-Scale Pushes
OpenAI built Pando, a Git-compatible backend, after Codex flooded its monorepo with pushes. What it changed, the trade-offs, and what it means for your agent fleet.
7 min read
Android Studio Now Runs Claude and Codex: ACP Setup Guide
Android Studio Rabbit 2 hosts 40+ ACP coding agents, Claude and Codex included, and Android CLI ships as a Claude Code and Codex plugin. Setup and caveats.
7 min read
Codex Could Not Start in VS Code: What the Error Means and How to Fix It
Codex shows "The extension could not start its user interface" in VS Code, Remote SSH, Dev Containers and Cursor. Read the log first, then pick the fix that matches.
7 min read
GPT-6.1 Terra: $1/$5 Pricing, Benchmarks, and When to Pick It
GPT-6.1 Terra is OpenAI's new $1/$5 per million token model: 50.3% on Terminal-Bench 4.0 (vendor-reported), half Sol's price, and who should route to it.
7 min read
Codex CLI 0.164: /presets and Inline /model Flags
Codex CLI 0.164.0 adds ten /presets slots, inline /model and /permissions arguments, and credential masking for remote commands. What to try and what to check.
7 min read
Codex Reset: Banked vs Automatic vs Paid, and When to Use Each
Codex has three kinds of usage reset - banked, automatic and paid - and they move your weekly refresh date in different ways. What OpenAI documents, the 80% rule, and what to do Monday.
8 min read
OpenAI Models on Google Cloud: What Changes for Developers
OpenAI and Google Cloud put GPT-6 Astra, GPT-6.1 Sol and GPT-6 Luna into Model Garden in private preview, with Codex pointed at Gemini inference. What is live, what is "coming soon", and what to do before general availability.
6 min read
Claude Code Now Reads AGENTS.md: Setup, Modes and Gotchas
Claude Code v2.1.277+ reads AGENTS.md when a repo has no CLAUDE.md. How the four Project instructions modes work, the settings key, and the gotchas.
9 min read
Codex CLI 0.163: Instant Steering Is Now the Default
Codex CLI 0.163.0 makes mid-response steering the default and adds searchable /config and a leader key. What changed and what to check before upgrading.
7 min read
Codex with GitLab: @codex Reviews and Tasks in Codex Cloud (Beta)
Codex cloud now reviews GitLab merge requests and runs @codex tasks in beta on all ChatGPT plans. Setup for GitLab.com and Self-Managed 19.0+.
12 min read
How to Use Codex Cloud Reusable Environments (2026 Guide)
Codex Cloud reusable environments: publish once, then start isolated tasks from web, desktop or mobile. Setup, secrets, CLI, limits and 8-16 GiB VMs.
13 min read
Codex Code Review Plugin: How to Review Pull Requests in Codex
Codex's Code Review plugin opens GitHub PRs in the desktop and web app, runs a private Codex review, and lets you choose which findings to post.
13 min read
Codex MCP Server Removed: How to Migrate to the App Server
codex mcp-server is gone as of Codex CLI 0.154.0. Here is how to move an integration to the experimental app server and its JSON-RPC protocol.
13 min read
Codex 'gpt-5.5 Model Is Not Supported' Error: The Fix
Codex says gpt-5.5 is not supported with a ChatGPT account because OpenAI retired it from ChatGPT sign-in on October 14. The fix and what still works.
6 min read
Agent Harness Lessons From a 500B-Token Decompile: Give Agents a PASS/FAIL Oracle
Agent harness lessons from a 500B+ token decompile: a byte-matching PASS/FAIL oracle beat the reviewer agent. How agents cheated it and what to copy.
7 min read
Codex CLI Background Daemon: How to Turn It Off
Codex CLI starts a self-updating background daemon since 0.157.0. How to turn it off, the per-session --no-daemon flag, and what Codex CLI 0.167.0 changed.
7 min read
Codex CLI 0.162: Managed Worktrees and Pinned Tasks
Codex CLI 0.162 lets the agent create and list its own Git worktrees, adds pinned tasks and custom provider capability overrides. What to change this week.
7 min read
ChatGPT Free vs Go vs Plus After GPT-6: Which Model You Get
Free and Go ($8) both get GPT-6 Luna in Chat. Plus ($20) is the cheapest plan with GPT-6 Sol and full Codex. What each ChatGPT plan buys now.
10 min read
ChatGPT Plus vs Claude Pro for Developers (October 2026)
Both cost $20 a month. Plus meters Codex apart from chat and includes GPT-6 Astra; Claude Pro shares one pool with Claude Code. Which to pick.
10 min read
Do Your Agent Hooks Fail Open? Claude Code vs Codex vs Cursor vs Gemini CLI
A guard hook that crashes, times out or points at a missing script lets the tool call through by default in Claude Code. v2.1.295 adds onFailure: block. Here is what each coding agent does when your policy hook breaks, with real test runs.
13 min read
Claude Code vs Codex vs Copilot CLI: Local Sandboxes Compared
Copilot CLI local sandboxing is GA. How it compares with Claude Code and Codex on defaults, network, credentials, Windows, and what still runs outside.
11 min read
How to Keep API Keys Away From Your AI Coding Agent: Claude Code vs Codex vs Cursor vs Gemini CLI
A deny rule on .env stops cat but not a Python one-liner. Here are the three layers that actually keep secrets out of a coding agent's context - file rules, environment scrubbing and credential masking - and what Claude Code, Codex, Cursor and Gemini CLI give you for each, with real test runs.
12 min read
Melty Game Mashups: How Claude Code Builds Them
Melty is a free Windows launcher for AI-built game mashups. How the Claude Code and Codex workflow works, the open skill pack, and the modder backlash.
7 min read
Sign in with ChatGPT: Run Coding Agents on Your Plan (2026)
Sign in with ChatGPT lets coding agents spend your Plus or Pro plan allowance instead of an API key. How the OAuth flow works and the per-app cap to set first.
8 min read
Turn a Bug Report Into a Repro Video with Codex, Playwright, and Screen Studio
Turn a bug report into a repro video: a coding agent writes a failing Playwright test, Screen Studio records the headed run, and both land in the issue.
9 min read
OpenAI DevDay 2026 Recap: What Shipped and What to Test
Everything OpenAI announced at DevDay 2026: GPT-6.1 Sol at $2/$10, Ultrafast, Decisions API, Agents API, cloud Codex, and what to test first.
8 min read
GPT-6.1 Sol Release Guide: Near-Astra Agentic Work at $2/$10 and $0.10 Cache Reads
GPT-6.1 Sol release guide: near-Astra scores at a fifth of Astra's price, $0.10 cache reads, verified pricing, the Astra 6.1 safety hold, and how to run it.
7 min read
CC Switch Guide: Manage Claude Code and Codex Providers From One App (2026)
CC Switch is a free open-source app that switches API providers for Claude Code and Codex in one click and syncs MCP servers and skills. How to use it safely.
9 min read
Codex Usage Limits and Pricing in 2026: Pro 100, Pro 200, Pro 500, Resets, and 'Model at Capacity' Errors
Codex usage limits and pricing per ChatGPT plan: what Plus, Pro $200 and Pro $500 buy, how resets work, and what to do about 'Selected model is at capacity'.
14 min read
GPT-6 Astra Release Guide: Benchmarks, $10/$50 Pricing, and How to Run It in Codex and OpenCode
GPT-6 Astra release guide: OpenAI's max-capability model, its $10/$50 pricing and 1.05M context, what the benchmarks do and do not say, and commands to try it.
8 min read
GPT-6 in 7 Minutes: Astra, Sol, and Luna Explained for Developers
GPT-6 in 7 minutes: what Astra, Sol and Luna are, what each tier costs per million tokens, the new API features, and how to try each one in Codex and the API.
7 min read
HeyGen CLI in Claude Code and Codex: Generate AI Avatar Videos From Your Terminal
The HeyGen CLI lets Claude Code and Codex create and download AI avatar videos from the terminal. Verified setup for both agents, skills, and key commands.
8 min read
How to Use Claude Code and Codex With Meta Muse: Every Setup That Actually Works
Claude Code and Codex with Meta Muse: run both agents on Muse Spark 1.3 via the Meta Model API, use OpenCode Go, or import your setup into Muse Code.
10 min read
OpenAI DevDay 2026: What to Expect - Confirmed, Reported, and Rumored
OpenAI DevDay 2026 runs September 29 at Fort Mason in San Francisco. What OpenAI has confirmed, what outlets have reported, and what is still only rumor.
8 min read
GPT-6 World Building: One HTML File to an Interactive Three.js World
GPT-6 drives Codex to build a walkable, single-file Three.js world with AI-generated wall assets. The verified toolchain and when this web-native 3D path wins.
7 min read
GPT-6 and Blender: Build a Playable 3D Game With Codex and AI Video
GPT-6 Astra and Codex script a playable Mars car game in Blender, then Higgsfield's plugin and Seedance turn the assets into trailers. The toolchain and setup.
8 min read
How GPT-6 Astra Builds a Real E-Commerce Site: Product Shots, Pages, and an AI Video Hero
GPT-6 Astra builds a yoga clothing store from one prompt, with generated product shots, product pages and an AI video hero via Codex and the Higgsfield CLI.
8 min read
Codex CLI Worktrees Turn Agent Runs Into Durable Sessions
Codex CLI 0.154.0 adds experimental worktrees, inline answers and approval hardening. Why durable agent workspace control matters more than the model picker.
7 min read
Make Your Coding Agents Talk: Voice Summaries with the Rime CLI
The Rime CLI streams text-to-speech from your terminal so Claude Code, Codex, Devin and OpenCode can speak a summary after each step. Install, flags and prompt.
8 min read
Codex Computer History Turns Repeated Work Into Reusable Skills
Codex Computer History gives agents a rolling local view of your work across apps. How it works, how to turn observed workflows into skills, and privacy limits.
8 min read
pi vs Claude Code vs OpenCode: Picking Your Agentic CLI
pi vs Claude Code vs OpenCode vs Codex CLI: a verified capability matrix and pick-X-if verdicts for choosing your main agentic coding harness.
10 min read
How to Make Claude Code 10x Better at Design: Image and Video Assets From the Agent Loop
Make Claude Code better at design by putting image and video generation in the agent loop with Higgsfield MCP and CLI, so sites ship with real assets.
8 min read
OpenAI Enterprise Signals: The Agentic Gap Is Now Measurable, and It Is Not About Models
OpenAI Enterprise Signals data: Codex drives 64% of enterprise output tokens and frontier firms generate 8.3x the tokens per user of typical firms.
7 min read
Self-Improving Applications Are Now Cheaper Than Hiring: The Claude Code and Codex Closed Loop
Self-improving applications with Claude Code and Codex: the loop from user feedback to GitHub issue to reviewed PR, paying per closed issue, not per token.
12 min read
Antigravity CLI vs Claude Code vs Codex: The Terminal Agent Field Guide (July 2026)
Antigravity CLI vs Claude Code vs Codex: how Google's Gemini CLI replacement compares on architecture, pricing, multi-agent workflows, and daily coding.
9 min read
Agent-Manager: A Tmux TUI for Running Claude Code, Codex, and OpenCode Side by Side
Agent-Manager wraps tmux into a Go TUI that groups AI coding agents by project, shows live status for each, and lets you answer blocked agents or review their changes without attaching to their terminal.
7 min read
Multi-Agent CLI Orchestration Tools Compared: Agent-Manager, Pane, and Golutra in 2026
Agent-Manager, Pane, and Golutra compared: three tools for running multiple CLI coding agents in parallel, by architecture, agent support, and workflow fit.
10 min read
OpenAI Open-Sourced Codex Security: What HN Thinks
Codex Security CLI and TypeScript SDK are now open source. What the repo contains and what HN says about scan cost, guardrails and local model support.
7 min read
AI Coding Agent Security Models Compared 2026: Permissions, Sandboxing, and Threat Models for Every Major Tool
AI coding agent security models compared: how Claude Code, Cursor, Codex, Copilot, Aider and Windsurf handle permissions, sandboxing and prompt injection.
10 min read
Codex and Claude Code in July 2026: Agent Controls Are the Feature
Codex and Claude Code July 2026 updates compared: why approval modes, resumable work, MCP auth, artifacts and review surfaces now matter as much as models.
8 min read
Securing AI Coding Agents: A Practical Threat Model for 2026
Securing AI coding agents: a practical threat model for prompt injection, sandbox escapes, and hallucinated dependencies, with defenses ranked by effort.
13 min read
Harness Handbook Shows the Missing Map for Coding Agents
Harness Handbook maps coding-agent behavior to code evidence. Why code search falls short when one behavior spans prompts, tools, state and permissions.
8 min read
Codex Hits 8 Million Users: What the GPT-5.6 Surge Means for Developers
Codex and ChatGPT Work hit 8 million active users after GPT-5.6 launched. What drove the surge, what changed for developers, and what to watch next.
7 min read
Codex Now Encrypts Multi-Agent Prompts, Breaking Local Auditability
OpenAI's Codex CLI now encrypts inter-agent communications for Sol and Terra models, leaving users unable to inspect what their agents are actually doing.
5 min read
Vera Shows Agent Safety Needs Test Oracles, Not Vibes
A new Vera paper tests Codex, Claude Code, OpenClaw, and Hermes with executable safety cases. The useful lesson is not panic. It is evidence-grounded agent QA.
8 min read
ChatGPT Work and Codex Now Share One Desktop App: What Actually Changed
OpenAI is consolidating its desktop apps, not merging ChatGPT and Codex into one indistinguishable product. Here is how ChatGPT Work, Codex, and GPT-5.6 fit together.
8 min read
Headless AI Coding Agents in CI: Claude Code, Codex CLI, Gemini CLI, and opencode Compared
Headless AI coding agents in CI compared: Claude Code, Codex CLI, Gemini CLI, and opencode on invocation flags, sandboxing, auth, and output formats.
9 min read
GPT-5.6 Sol Ultra Coming to Codex with Cooperative Subagents
GPT-5.6 Sol Ultra is coming to Codex with trained subagents that communicate during tasks, reportedly hitting 91.9% on Terminal-Bench 2.1. What HN thinks.
5 min read
AgentCanvas is a visual adapter for Claude Code and Codex
AgentCanvas is a visual adapter for Claude Code and Codex that puts artifacts, decisions and handoffs on one board, so the next agent or human can see them.
6 min read
Nimbalyst: A Visual Workspace That Unifies Codex and Claude Code
Nimbalyst is an open-source visual workspace that runs Codex and Claude Code on your existing subscriptions, with a Kanban board, planning flow and AI commits.
6 min read
Codex Record & Replay: Turn Screen Recordings Into Reusable Automation Skills
Codex Record & Replay companion guide: record a recurring computer task once in OpenAI Codex and replay it as a reusable automation skill, plus where it fits.
6 min read
GPT-5.5 in 7 Minutes: Benchmarks, Codex Agents, Context Window, and Pricing
GPT-5.5 in 7 minutes: a companion guide to the video review of the new OpenAI model in ChatGPT and Codex - benchmarks, Codex agents, context window and pricing.
6 min read
OpenAI Codex in 7 Minutes: The Desktop App, Plan Modes, and Multi-Agent Workflows
OpenAI Codex in 7 minutes: a companion guide to the video tour of the Codex desktop app, plan and goal modes, plugins, multi-agent workflows and UI annotation.
6 min read
Grok Build Developer Guide: xAI's Terminal Coding Agent (June 2026)
Grok Build, xAI's terminal coding agent, runs up to 8 parallel subagents with a plan-first workflow. Install, pricing, commands and a Claude Code comparison.
9 min read
Agent Workflows as Code: Why State Machines Beat Prompt Checklists
Agent workflows as code: why finite state machines with typed gates, validated evidence and controlled transitions beat prompt checklists for coding agents.
8 min read
Codex-Maxxing: How to Run Long-Running Codex Workflows Without Losing the Plot
Codex-Maxxing done right is bounded autonomy: AGENTS.md, small worktrees, explicit stop conditions and review checkpoints for long-running Codex workflows.
8 min read
Local Coding Agent Workspaces Are the New IDE Surface
Local coding agent workspaces wrap Claude Code, Codex and Copilot CLI with memory, diff gates and rollback. Why the workspace is becoming the product.
8 min read
OpenAI Daybreak Shows the AppSec Bottleneck Is Patching, Not Finding
OpenAI Daybreak and Patch the Planet show the agentic AppSec bottleneck is patching. Security agents matter when they ship validated fixes maintainers merge.
8 min read
OpenMontage Shows the Real Future of AI Video: Agents, Not Editors
OpenMontage treats AI video production as a repo-shaped agent workflow - scripts, assets, render pipelines and review loops run by coding agents, not an editor.
7 min read
TikZ Editor Is a WYSIWYG LaTeX Figure Tool Built Almost Entirely by Codex
TikZ Editor is an open-source WYSIWYG editor for LaTeX TikZ figures built almost entirely by Codex. How it works and what HN made of agent-built software.
7 min read
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.
8 min read
Codex Logging Bug Can Write Terabytes to Your SSD
A Codex CLI SQLite logging bug wrote TRACE logs that could wear out SSDs. What caused it, the merged fixes, and what to check if you run Codex heavily.
5 min read
Codex Custom Model Providers: GLM-5.3, Mistral and Ollama
Codex only speaks the Responses API now. Tested config.toml blocks for GLM-5.3, Mistral Large 4 through a gateway, local Ollama and an internal proxy.
14 min read
The Definitive Guide to Loop Engineering in Claude Code and Codex
Loop engineering in Claude Code and Codex - when to use a goal, loop or routine, the real commands, production patterns and two failure modes that burn money.
16 min read
GitHub Copilot Agent Finder: What ARD Means for Third-Party AI Tools in 2026
GitHub Copilot Agent Finder discovers and invokes MCP servers, skills and agents like Claude and Codex. How the open ARD spec changes AI tool integration.
8 min read
Omnigent: Databricks' Meta-Harness for Orchestrating Claude Code, Codex, and Custom Agents
Omnigent is a Databricks meta-harness above Claude Code and Codex that keeps sessions, policies and skills portable. What it does and how to install it.
8 min read
Codex Gets Computer Use in the EU - and a Clean Claude Code Import
Codex Computer Use is now available in the EEA, UK and Switzerland, and Codex CLI 0.140.0 adds a selective Claude Code import. What shipped, per the changelog.
7 min read
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.
8 min read
Codex in June 2026: What Changed Since the Spring Wave
Codex changelog for April to June 2026: GPT-5.5, Goal mode going stable, the Chrome extension, iOS access, Bedrock support and Sites, and what each means.
9 min read
Codex Exec in CI: Practical Guide to Headless OpenAI Agents
codex exec is OpenAI's non-interactive mode to run Codex agents from scripts, CI and GitHub Actions. How to set it up safely with real flags and working YAML.
9 min read
Codex vs Claude Code in 2026: Which AI Coding Agent Should You Use?
Codex vs Claude Code in 2026: pick Claude Code for ambiguous multi-file work with skills and MCP, or Codex for well-scoped tasks and strong defaults.
12 min read
Harness Engineering Makes Tokens a Systems Budget
Harness engineering turns tokens into a systems budget. OpenAI's Codex post and Tokenomics research say agent teams need budgets, receipts, and eval loops.
8 min read
The Model, IDE, CLI, and Agent Framework Changes That Actually Matter
Which AI coding changes matter: a layer-by-layer filter for model, IDE, CLI, background agent, framework, UI, context, security, and pricing updates.
10 min read
The New AI Coding Stack I Would Pick Today
The AI coding stack I would pick today: terminal agent, editor, background agent, Mastra, CopilotKit, MCP, context, security, and cost controls as layers.
11 min read
Taste Skills Are Turning Agent Review Into Infrastructure
Taste skills for AI agents turn subjective review criteria into executable infrastructure. What trending anti-slop and compound-engineering skills signal.
8 min read
Local Code Graphs Are the Agent Context Layer
CodeGraph builds a local, queryable repo map that coding agents reach through MCP. The win is faster orientation, fewer wrong files and better review receipts.
9 min read
AI Code Review Is the New Bottleneck
AI code review is the new bottleneck as coding agents outpace reviewers. Build review systems around reproduction, small diffs, tests and receipts.
8 min read
AgentMemory Is Useful Only If You Audit What It Remembers
AgentMemory gives Claude Code, Codex and Cursor persistent local memory. The real adoption test is whether your team can inspect, prune and govern it.
8 min read
Codex CLI Vim Mode Is an Ergonomics Signal
Codex CLI 0.129.0 added modal Vim editing to the composer. A small feature, but a signal: terminal agents are becoming native engineering workbenches.
6 min read
Skills for Real Engineers Need Governance, Not Fandom
Matt Pocock's skills repo is a signal for AI coding teams: treat skills as governed production controls, not a folder of viral prompts.
7 min read
Agent Memory Benchmarks Are Not Enough
Agent memory benchmarks are not enough. Coding-agent memory has to prove recall, freshness, deletion and rollback under real development pressure.
9 min read
Ruflo Is an Agent Meta-Harness. Treat the Star Count as a Warning Label.
Ruflo is an agent meta-harness for Claude Code and Codex with plugins, memory, swarms and MCP tools. What it adds, and how much harness you actually need.
8 min read
Terminal Agents Are the New Developer Runtime
Terminal agents like Claude Code, Codex CLI and OpenCode are converging on one runtime layer: permissions, sandboxing, rollback, receipts and cost controls.
9 min read
Codex Automations: Where Scheduled AI Agents Actually Help
Codex automations are useful when recurring engineering work has clear inputs, reviewable outputs, and safe boundaries. Here is the practical playbook.
9 min read
Codex Is Becoming a General-Purpose AI Agent, Not Just a Coding Tool
OpenAI is turning Codex from a coding assistant into a broader agent workspace for files, apps, browser QA, images, automations, and repeatable knowledge work.
8 min read
Codex Loops: What Boris Cherny Gets Right About Managing Agent Work
Boris Cherny's loop-heavy Claude Code workflow points at the next Codex content lane: recurring agents that babysit PRs, CI, deploys, and feedback streams.
8 min read
Codex SDK vs CLI vs GitHub Action: Which Surface Should You Build On?
Codex SDK vs Codex CLI vs the Codex GitHub Action: when to use each surface, and how to avoid building the same agent loop three times.
8 min read
Karpathy's Loopy Era Is the Best Way to Understand Codex
Andrej Karpathy's loopy era frame explains why Codex is becoming less like a chatbot and more like an agent loop manager for real software work.
9 min read
OpenAI's Codex Mac Certificate Deadline Is a Runbook Test
OpenAI's May 8 macOS certificate rotation for ChatGPT, Codex, Codex CLI and Atlas, and a runbook for how teams should govern AI developer tool updates.
7 min read
Parallel Coding Agents Need Merge Discipline
Parallel coding agents only speed you up with merge discipline: clean task ownership, review receipts and a single merge owner instead of cleanup work.
7 min read
Codex Changelog April 2026: Goals, Browser Use, GPT-5.5, and Safer Agents
The April 2026 Codex changelog explained: persisted goals, browser verification, automatic approval reviews, plugins, and permission profiles.
9 min read
OpenAI Codex, Managed Agents, and AWS: What Developers Should Watch
OpenAI is moving Codex from a coding assistant into an enterprise agent platform. Here is what changed with Codex, Managed Agents, AWS, and the Responses API.
8 min read
Codex Security Preview: AppSec Agent for Real Repos
OpenAI's Codex Security agent reviews app code for vulns. Here is what it caught and missed on three real production repos.
10 min read
GPT-5.5-Codex in Production: What Actually Changes
GPT-5.5-Codex merges Codex and GPT-5 stacks. Here is what the unified model means for real coding agents - latency, costs, prompt rewrites.
9 min read
Shipping OpenAI Symphony in Prod: A Real-World Guide
What it actually takes to wire OpenAI Symphony into a Linear-driven Codex workflow - auth, runs, sandboxes, costs, and the gotchas nobody warned me about.
12 min read
10 Trending AI Dev Tools, Week of April 28 2026
From Claude Opus 4.7 and GPT-5.5 to Andrej-karpathy-skills and EvoMap - the AI dev tools actually shipping the last 30 days, with commands, links, and pricing.
9 min read
Over-Editing: Why Your AI Coding Agent Rewrites What Isn't Broken
Over-editing is when AI coding agents make huge diffs for tiny fixes. Why models do it, why tests miss it, and how to keep agent edits minimal.
9 min read
What Hacker News Gets Right About AI Coding Agents in 2026
What Hacker News gets right about AI coding agents: workflows beat demos, skills beat prompts, orchestration beats autonomy, and verification is the bottleneck.
11 min read
Why Skills Beat Prompts for Coding Agents in 2026
Skills beat prompts for coding agents because giant prompts do not scale. The 2026 control stack: project rules, reusable skills, bounded sub-agents and tools.
9 min read
Every AI Coding Tool Compared: The 2026 Matrix
Every AI coding tool compared: 15 terminal, IDE, cloud and browser tools side by side on pricing, model surface, strengths, weaknesses and best use cases.
18 min read
Claude Code vs Cursor vs Codex: Which Should You Use?
Terminal agent, IDE agent, local-plus-cloud agent. Three architectures compared - how to decide which fits your workflow, or why you should use all three.
8 min read
Cursor vs Codex: IDE Agent vs Terminal and Cloud Agent for TypeScript
Cursor is editor-first. Codex is terminal, cloud, and PR-first. Here is when to use each for TypeScript projects.
5 min read
OpenAI Codex: Terminal and Cloud AI Coding Agent
Codex works from the terminal, cloud tasks, IDEs, GitHub, Slack, and Linear. Here is how to use it and how it compares to Claude Code.
5 min read
GPT-5 Codex: OpenAI's Agentic Coding Model
GPT-5 Codex is OpenAI's product-optimized coding model, trained on the full software lifecycle and built for long autonomous runs across every Codex surface.
7 min read
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