
š¤ Founder @_houseofgiants š» Developer. š Writing - https://xitter.cf/t.co/RxBviKPKKv
Denver | Colorado
Joined June 2010
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SO much has happened in the past week
The Pi Updates are insane ā” Pull Requests are Dead ā” Turso Is Joining Supabase ā Syntax Weekly ā xitter.cf/i/broadcasts/1nGnRBQYMā¦
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available now
npx skills add dmmulroy/anti-slop --skill install-anti-slop
github.com/dmmulroy/anti-sloā¦
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Iām exploring the mental health effects of AI coding. This is a super quick (blazing fast), anonymous survey.
Please fill out and share so that the responses will be well rounded.
forms.gle/EjpPMoubFS9RX6kb7
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This post from builder.io is very well written: "Everyone's Missing the Point of WebMCP"
"Thatās why WebMCP matters. It offers a cleaner path than making assistants reverse-engineer every site through the UI alone. If a site can expose structured actions and context directly, the assistant has less guessing to do. That doesnāt remove every failure mode, but it does move the interaction away from ācomputer-use stuntā territory and closer to something people could trust for repeatable tasks."
Though I don't see browser actuation as the only use case, the article is correct that WebMCP creates/helps with a new type of product experience.
builder.io/blog/webmcp
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I finally got my AI code drawings up on my site:
- Transformers
- MCP
- Vector Databases
- Context windows
Hopefully theyāre helpful to anyone learning
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David K š¹@DavidKPianoJun 13
United States
United StatesConnected via Germany Android AppAccount-level information, not a live location or per-post device.
Wow, the government one-shotted Fable
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twitter's best worst quality is that it forces all takes into an extreme
you're either a tokenmaxxing inferencel looping your agents or you're a promptchud
the truth lies somewhere in between
you absolutely should have agents that can reproduce problems in your products, look for optimizations, automatically open PRs on issues
software has never been perfect, even before AI bugs still made it to production, the more of these you can catch and can fix automatically the better
at the same time, the underlying engineering still does matter - i just spent 3 days fixing some bad product design and architecture that i originally tried to defer to agents to implement
if i wasn't looking at the code, or i was just trusting loops to fix it, my product would be stunted in quality because i would've just kept digging myself into a worse path
anyways, setup your loops but prompting your agents is also fine - get the balance
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I've got an agent in a loop optimizing a renderer with the goal to minimize frame times (and tests to measure). It got times down from 88ms to 2ms and allocations down from ~150K to 500. Sounds good, right? Wrong. This is exactly why agent psychosis is a big fucking problem.
As an experiment, I rewrote the Ghostty core render state in Go, with access to identically laid out data structures as Ghostty and the exact same validation tests. I made a purposely naive renderer (simple, correct, but slow). 88ms per frame with 150,000 allocations (horrendous, lol)!
I then kickstarted a Ralph loop to bring the frame times down. I told it it can't modify input data structures or the public API or tests (they're correct), but it can do anything else it wants. It got to work.
It has worked for about 4 hours. I've spent around $350 on this experiment so far. The results?
88ms => 1.5ms
150K allocs => ~500 allocs
Incredible right? Nope.
My hand-written renderer I ported has frame times (same benchmark) of ~20us (0.020ms) and 0 allocations in the update path.
This is the problem with psychosis and lacking systems understanding. If you don't understand the system, you're going to accept that this is an incredible result. If you understand the system, you'll see better solutions immediately and can do roughly 75x better on throughput.
The people who blindly trust agent output are in the former camp. They're sheeple, overdrinking from a fountain of mediocrity.
Standard disclaimer: I use AI all the time. I like AI. The point I'm making is to not blindly accept results. Think. Analyze. Learn.
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Reply with an essential line from your AGENTS MD and what it does for Codex
Very interested in how you guys instruct 5.5!
Iāll go first š
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Today weāre releasing DeepSWE, a new standard for agentic coding benchmarks.
On public leaderboards, top models often look relatively close in capability. DeepSWE shows where they actually diverge, reflecting the realistic experience of developers in their day-to-day work.
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diffshub[dot]com
Take any public diff from GitHub and virtualize it nearly instantly, no matter how large, with DiffsHub. Built to show off our brand new CodeView component.
To try it out, replace `github` with `diffshub` in your address bar.
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Thrilled this is now out, keeping quiet has been SO HARD! š¤
Iāve had the opportunity to contribute to this project as a domain expert consultant over the past few months, and have seen firsthand the level of thoughtfulness and genuine care for developers and the web platform that has gone into it. ā¤ļø
Itās still very early days, but Iām really proud to have played a small part, and excited for what's next. Looking forward to seeing what folks build with it!
Ensure your coding agents build apps that are modern, fast, & secure by default ā goo.gle/3PcqfGj
We just announced Modern Web Guidance at #GoogleIO. By injecting AI-ready skills and modern featuresācomplete with Baseline Widely Available fallbacksāit ensures your agent keeps up with the latest web featuresš§µ
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Security things from the last few days:
- CopyFail (linux pwn'd)
- CopyFail 2/Dirty Frag
- 13 advisories in Next.js
- Over 70 CVEs addressed in MacOS 26.5
- ~50 CVEs addressed in iOS 26.5
- YellowKey (Windows Bitlocker pwn'd entirely)
- GreenPlasma (Windows privilege escalation)
- CVE-2026-21510 and CVE-2026-21513 confirmed to be used by Russia for Windows RCE
- CVE-2026-32202 separately confirmed to be used by Russia for sensitive document access
- Mini-Shai Hulud (over 300 JS and Python packages compromised via GitHub Action cache poisoning)
- Google confirms they have identified AI-powered exploitation of zero days in an unidentified "open-source, web-based system administration too"
- Canvas (popular LMS used in most schools) pwn'd entirely
- PAN-OS (palo alto networks) pwn'd with a 9.3 severity CVE-2026-0300
Are you scared yet?































