Another Wednesday with my newsletter, and I decided to make a shift.
Sharing less industry news (hype) and less people screaming how "they take away our tokens" and "why it's getting slower / more expensive", and sharing more PRACTICAL ADVICE. So yeah, you'll see many tweets with just people sharing how to use AI better for coding.
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Codex CLI: My Favorite 10 Tips and Tricks
Many people are switching to Codex from Claude Code in April/May, so I thought to compile some features of Codex CLI that you may not know.
My YouTube videos
I Tested GPT-5.5 Medium/High/xHigh Reasoning Levels: CLEAR Difference
Is it worth using xhigh reasoning level, and how much more expensive it is in practice? I've tried it out.
I Tested Three GPT-5.x: Worth Using Older "Cheaper" Models?
Experiment inspired by comments on my YouTube channel.
I Tried NEW Codex In-App Browser: No Need for Playwright Tests?
New feature in the Codex App that will help you to stay in the same app and not leave elsewhere for testing the prompt results.
I Tried NEW /goal in Codex CLI: Ralph Loop by OpenAI?
With the new /goal experimental command, I've made two experiments: shorter and longer task. What happens when LLMs reaches the context/usage limits?
AI Coding Community
Nate Herk on X: "I Tried 100+ Claude Code Skills. These 6 Are The Best"
x.com
OpenRouter on X: "We analyzed GPT 5.5 vs GPT 5.4 and found that costs increased between 49-92%."
x.com
The 2x price hike of GPT 5.5 is mitigated by the model generating 19-34% fewer completion tokens for longer prompts.
Team shipped a Codex Security plugin with 5 AppSec workflows.
x.com
Security Scan Scans PRs, commits, branches, patches, folders, or full repos. Runs the full pipeline end-to-end Threat Model Maps the repo: assets, trust boundaries, attacker inputs, invariants, and failure
Darkzodchi on X: "The CLAUDE.md File That 10x'd My Output (Full File Included)"
x.com
Ronin on X: "I cut my Claude Code bill ~80% with one move: I actually read the docs."
x.com
Article full of tips.
shmidt on X: "The Three Repos That Quietly Fix Claude Code "
x.com
By 4 PM you've spent more time re-aligning Claude with the plan than executing on it. By 6 PM you're debugging a 400-line implementation it wrote in fifteen minutes, half of which wasn't needed in the first place...
Ali on X: "I hated how bad agents are at design. So I created Lazyweb."
x.com
- 257k+ screens (apps/web) - 6 opinionated design research skills - 1 MCP (Claude/Codex) - 100% Free
Tibo from Codex/OpenAI team commented and asked to make it into a skill, so here it is.
Codex getting very expensive this week!
reddit.com
Is it just me, or has Codex become noticeably more expensive this week? I’ve been using it heavily for serious coding work, but the cost/token...
API revenue is growing more than 2x faster than any prior release, while Codex doubled revenue in under seven days as enterprise demand for agentic coding tools keeps climbing.
Dominik on X: "The Most Fun I’ve Had Building Apps: GPT-5.5 + GPT-Image-2"
x.com
Long article. Combining GPT-5.5’s attention to detail with GPT-Image-2’s capability of rendering high quality UIs lets you create more creative high fidelity apps.
Peter Yang on X: "How to keep your agents running even when your macbook lid is closed."
x.com
Practical tip. 1. Go to Mac App Store and download Amphetamine. 2. Go to Settings → Session Defaults → uncheck everything below. You're welcome :)
That's it for this week, see you in the next newsletter issue.
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