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Dan Siemon

@coverfire.com
288 followers 663 following 310 posts

Networking geek, product manager, start-up founder. www.coverfire.com Please take a look at bsky.app/profile/coverfire.com/feed… feed if you are interested in computer networking.

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Reposted by Dan Siemon
Software Engineering Daily @softwaredaily.bsky.social · 29/09/2026
Cory Doctorow is a science fiction author, journalist, and technology activist. He joins @joshuakgoldberg.com to discuss the dynamics between AI, work, and power. @doctorow.pluralistic.net softwareengineeringdaily.com/podcasts/cor...
softwareengineeringdaily.com
Cory Doctorow on AI, Work, and Power - Software Engineering Daily
Cory Doctorow is a science fiction author, journalist, and technology activist. He joins Joshua Goldberg to discuss the dynamics between AI, work, and power.
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Dan Siemon @coverfire.com · 28/09/2026
youtube.com/watch?v=3EUs...
youtube.com
The End of Understanding: Why Good Abstractions Matter
YouTube video by Convex
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Jules Sherred (he/him) @geekyjules.julessherred.com · 15/07/2026
Kid1, who is both an conductor and engineer for CN and has driven trains through SK wildfires himself, just sent me this video from Ontario. When I tell you they arent paid enough!!! vt.tiktok.com/ZSXkuEadE/
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Dan Siemon @coverfire.com · 23/06/2026
lucumr.pocoo.org/2026/6/23/th...
lucumr.pocoo.org
The Coming Loop
Loops, harnesses, and why even loop skeptics may end up with them.
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Dan Siemon @coverfire.com · 16/06/2026
Discussion of algorithms for longest prefix matching for IP routing. Great article. #networknook blog.nlnetlabs.nl/donkeys-mule...
blog.nlnetlabs.nl
Of Donkeys, Mules & Horses
A quest for the perfect data-structure to store and retrieve a full table of IP Prefixes, while maintaining the hierarchical relations.
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Reposted by Dan Siemon
SurrealDB @surrealdb.com · 03/06/2026
Agents are getting good at acting. They're still bad at remembering. Spectron, the memory and knowledge layer for AI agents built on SurrealDB, addresses this. Early access opens today. Learn more. 👉 sdb.li/4o7FbT9
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Reposted by Dan Siemon
Andy Craig @andycraig.bsky.social · 06/06/2026
Thinking of X as the comments section on Elon Musk's personal blog is a reasonably accurate model.
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DuckDB @duckdb.org · 12/05/2026
Today we are revealing the Next Big Thing for DuckDB: Quack, a protocol that turns DuckDB into a client-server database. True to DuckDB's philosophy, Quack is simple and fast. Setting it up takes seconds, and it works for both bulk operations and small write transactions. 🔗 duckdb.org/quack
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Dan Siemon @coverfire.com · 06/05/2026
We're into day 2 of the Proactive ISP Virtual Summit. You can still join! The recordings will be posted later. proactiveispsummit.com
proactiveispsummit.com
Proactive ISP Virtual Summit | Powered by Preseem
Register for the first-ever Proactive ISP Virtual Summit, running May 5-6, 2026 from 11 a.m. to 2 p.m. Eastern., and powered by Preseem.
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Reposted by Dan Siemon
Adam Jacob @adamhjk.me · 15/04/2026
The future is not pumping out slop until our software breaks under its own weight. Instead I think we use AI Agents to define a new SDLC. Larry Wall's virtues of a Perl programmer: laziness, impatience, and hubris compel us to. /cc @bcantrill.bsky.social www.adamhjk.com/blog/lazines...
adamhjk.com
Laziness, Impatience, and Hubris · Adam Jacob
How Larry Wall's virtues of a Perl programmer inspire me in this era of engineering
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Dan Siemon @coverfire.com · 09/04/2026
Wow youtu.be/IxFcNOmND00?... #canada
youtu.be
Why Canada Blasted a Huge Hole Outside its Parliament
YouTube video by The B1M
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Reposted by Dan Siemon
Lalit Maganti @lalitm.com · 05/04/2026
I just published a deep-dive into the 250-hour build behind syntaqlite, a SQLite formatter and LSP I built using AI agents. AI agents were the only reason built this after 8 years of wanting but there's a psychological toll to AI-assisted engineering. The post-mortem: lalitm.com/post/buildin...
lalitm.com
Eight years of wanting, three months of building with AI
For eight years, I’ve wanted a high-quality set of devtools for working with SQLite. Given how important SQLite is to the industry1, I’ve long been puzzled that no one has invested in building a reall...
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Dan Siemon @coverfire.com · 05/04/2026
"The failure mode isn't malice. It's convenience." ergosphere.blog/posts/the-ma...
ergosphere.blog
The machines are fine. I'm worried about us.
On AI agents, grunt work, and the part of science that isn't replaceable.
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Dan Siemon @coverfire.com · 30/03/2026
[2603.20639] Agentic AI and the next intelligence explosion share.google/Fbbak2LPf0I7...
share.google
Agentic AI and the next intelligence explosion
The "AI singularity" is often miscast as a monolithic, godlike mind. Evolution suggests a different path: intelligence is fundamentally plural, social, and relational. Recent advances in agentic AI re...
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Dan Siemon @coverfire.com · 29/03/2026
www.anthropic.com/engineering/...
anthropic.com
Harness design for long-running application development
Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.
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Dan Siemon @coverfire.com · 24/03/2026
Gemini CLI has plan mode now. I don't know how good it is but this was the main barrier to me using it other than as a reviewer for Claude Code work.
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Dan Siemon @coverfire.com · 22/03/2026
Read “Datadog, Block, and Cloudflare All Abandoned the Default MCP Pattern. Here’s What They Use Instead“ by Tanmay Deshpande on Medium: medium.com/data-science...
medium.com
Datadog, Block, and Cloudflare All Abandoned the Default MCP Pattern. Here’s What They Use Instead
Comparing traditional, code mode, and layered query patterns — with real benchmarks on the HackerNews API
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Dan Siemon @coverfire.com · 22/03/2026
Read “LangChain Open-Sourced the Architecture Behind Coding Agents. Here's What It Actually Reveals.“ by Ari Vance on Medium: ai.gopubby.com/langchain-op...
ai.gopubby.com
LangChain Open-Sourced the Architecture Behind Coding Agents. Here's What It Actually Reveals.
The same four components that power Claude Code are now open source, inspectable, and model-agnostic by design.
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Dan Siemon @coverfire.com · 10/03/2026
100% - Shipping poor llm code is a choice
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Reposted by Dan Siemon
Alex Panetta @alexpanetta.bsky.social · 05/03/2026
Very disturbing implications for a couple of places where I’ve lived, and encouraging ones for the place where I’m from. From Pew: “We asked people around the world to rate the morality and ethics of others in their country.”
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Dan Siemon @coverfire.com · 05/03/2026
Closing session at another great ISPAmerica. Great war stories. share.google/oaY4TdJMHB4r...
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Reposted by Dan Siemon
Rodney 🚧🚇 @chanface.bsky.social · 28/02/2026
Congrats University of Waterloo for leaving X! Make sure to follow them here @uwaterloo.ca
University of Waterloo
@UWaterloo
x.com
This account is no longer active.
Looking to stay connected with the University of Waterloo?
• News: uwaterloo.ca/news/
• Bluesky: uwaterloo
• IG: uofwaterloo
• FB: university.waterloo
• LI: uwaterloo
Thank you
9:41 AM • 2026-02-27 • 1.5M Views
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Dan Siemon @coverfire.com · 27/02/2026
From @vercel.com: An agent performing support duties for a specific customer should receive a tool scoped to that customer's data, not a tool that accepts a customer ID parameter, since that parameter is subject to prompt injection. vercel.com/blog/securit...
vercel.com
Security boundaries in agentic architectures - Vercel
A framework for drawing security boundaries in agentic architectures. Most agents run with zero isolation between the agent and the code it generates. Learn where to draw the boundaries, from secret i...
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Dan Siemon @coverfire.com · 27/02/2026
technoyoda.github.io/agent-search... Worth reading #ai #agent
technoyoda.github.io
Agents are not thinking, they are searching
Prologue
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Dan Siemon @coverfire.com · 24/02/2026
Read “Google’s A2UI Protocol Just Changed How AI Agents Build User Interfaces — Here’s My First Project…“ by Pawel on Medium: medium.com/@meshuggah22...
medium.com
Google’s A2UI Protocol Just Changed How AI Agents Build User Interfaces — Here’s My First Project…
Two weeks ago, Google open-sourced something that might reshape how we think about AI-generated interfaces: A2UI (Agent-to-User Interface).
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Dan Siemon @coverfire.com · 23/02/2026
www.modular.com/blog/the-cla...
modular.com
Modular: The Claude C Compiler: What It Reveals About the Future of Software
Compilers occupy a special place in computer science. They're a canonical course in computer science education. Building one is a rite of passage. It forces you to confront how software actually works...
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Dan Siemon @coverfire.com · 22/02/2026
This is interesting, a 'safe' Python interpreter for use by AI agents. I guess because the LLMs know Python better than Rune or RHAI? github.com/pydantic/monty
github.com
GitHub - pydantic/monty: A minimal, secure Python interpreter written in Rust for use by AI
A minimal, secure Python interpreter written in Rust for use by AI - pydantic/monty
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Ryan Mac 🙃 @rmac.bsky.social · 02/02/2026
In the last 48 hours, Musk's reactions to the Epstein release show exactly why he bought Twitter. He's used the platform to call coverage of his emails with Epstein as "lies," elevated his fans who have defended him, and gotten positive reinforcement from his AI chatbot.
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Dan Siemon @coverfire.com · 23/01/2026
At what point does Poilievre look at how Carney handles things and think, crap, I'm really not the person the country needs now?
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Reposted by Dan Siemon
Carl Quintanilla @carlquintanilla.bsky.social · 20/01/2026
CARNEY: “.. You cannot live within the lie of mutual benefit through integration when integration becomes the source of your subordination.” 🔥
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Reposted by Dan Siemon
Chris Hayes @chrislhayes.bsky.social · 20/01/2026
This is the best speech, just from a pure rhetoric perspective - its sophistication and persuasiveness - that I've seen a politician deliver in a good long while. Really recommend watching or reading the whole thing.
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Dan Siemon @coverfire.com · 18/01/2026
networkgames.fyi/the-year-eve...
networkgames.fyi
The year everything changed
Far from my best years being behind me, it feels as though everything in my life has been leading to this moment: building a completely new category of product where the most useful lessons come not f...
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Reposted by Dan Siemon
Jason Gorman @jasongorman.bsky.social · 10/01/2026
If a restaurant served you a perfectly-cooked steal with a cockroach on it, would your feedback be "It was perfectly cooked, but there was a cockroach on it"? Or would you just see the cockroach and conclude the steak's inedible? In case you're wondering what impact bugs have on user feedback.
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Reposted by Dan Siemon
gabby @fullmoon.id · 09/01/2026
I've published a post on better prompting for LLMs: "Prompting 101: Show, don't tell" This is inspired by a similar post from an internal prompt engineering training series I wrote for Mercury: www.haskellforall.com/2026/01/prom...
haskellforall.com
Prompting 101: Show, don’t tell
Prompting 101: Show, don’t tell A really common mistake I see people make when writing prompts is starting t...
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Reposted by Dan Siemon
Simon Willison @simonwillison.net · 08/01/2026
I joined the Oxide and Friends annual predictions podcast episode this week - here are my 1, 3 and 6 year predictions for AI and LLMs (and Kākāpō parrots) simonwillison.net/2026/Jan/8/l...

    1 year: It will become undeniable that LLMs write good code
    1 year: We’re finally going to solve sandboxing
    1 year: A “Challenger disaster” for coding agent security
    1 year: Kākāpō parrots will have an outstanding breeding season
    3 years: the coding agents Jevons paradox for software engineering will resolve, one way or the other
    3 years: Someone will build a new browser using mainly AI-assisted coding and it won’t even be a surprise
    6 years: Typing code by hand will go the way of punch cards
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Reposted by Dan Siemon
Google Open Source @opensource.google · 06/01/2026
New year's resolution, engage with open source developers on our new Bluesky account. ✨
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Dan Siemon @coverfire.com · 06/01/2026
loggingsucks.com
loggingsucks.com
Logging Sucks - Your Logs Are Lying To You
Why traditional logging fails and how wide events can fix your observability
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Dan Siemon @coverfire.com · 31/12/2025
aicoding.leaflet.pub/3mbaguyrjek2g
aicoding.leaflet.pub
Immutable Infrastructure, Immutable Code - The Phoenix Architecture
Why "Never Upgrade in Place" Now Applies to Software
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Dan Siemon @coverfire.com · 26/12/2025
youtube.com/watch?v=7Dtu... Good talk. Their Vibe Coding book is a bit long but worth reading too.
youtube.com
2026: The Year The IDE Died — Steve Yegge & Gene Kim, Authors, Vibe Coding
YouTube video by AI Engineer
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Dan Siemon @coverfire.com · 26/12/2025
youtube.com/watch?v=eIoo...
youtube.com
The Infinite Software Crisis – Jake Nations, Netflix
YouTube video by AI Engineer
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Reposted by Dan Siemon
Aricie | 아리시 🏳️‍⚧️ 🇨🇦 @parisien.cc · 25/12/2025
The only true way is the Canadian way (As much as I wish it was a joke, it is in fact not one and this is exactly how it works here)
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Dan Siemon @coverfire.com · 20/12/2025
karpathy.bearblog.dev/year-in-revi...
karpathy.bearblog.dev
2025 LLM Year in Review
2025 Year in Review of LLM paradigm changes
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Reposted by Dan Siemon
Max Fawcett @maxfawcett.bsky.social · 20/12/2025
TSX year-to-date: ⬆️ 27.5% S&P500 year-to-date: ⬆️ 16.5%
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Dan Siemon @coverfire.com · 18/12/2025
martinalderson.com/posts/ai-age...
martinalderson.com
AI agents are starting to eat SaaS
Software ate the world. Agents are going to eat SaaS.
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Dan Siemon @coverfire.com · 18/12/2025
www.msuiche.com/posts/when-m...
msuiche.com
When Machines Pay Machines: The Economics of Agentic AI | Matt Suiche
The internet was built with a missing piece. In 1994, when the HTTP specification reserved status code 402 for “Payment Required,” the architects knew money would eventually flow as freely as data. Th...
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Reposted by Dan Siemon
Signal @signal.org · 17/12/2025
If you’ve felt safer sending a message because you sent it on Signal, please support our work. As a nonprofit, Signal exists because of your donations. In the app: Settings > Donate On the web: Signal.org/donate
signal.org
Donate to Signal Private Messenger
Your donation helps pay for the development, servers, and bandwidth of an app used by millions around the world for private and instantaneous communication. Please make a donation today.
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Dan Siemon @coverfire.com · 17/12/2025
Read “What Actually Happened When We Turned On HTTP/3“ by The Speed Engineer on Medium: medium.com/@chopra.kant... #networknook
medium.com
What Actually Happened When We Turned On HTTP/3
We dropped mobile p99 latency by 40%. Then our CDN stopped talking to half our users.
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Robin Berjon @robin.berjon.com · 09/12/2025
2025 is coming to end and some people who claim not to be fascists are still associating themselves with fascist outlets like X. I claim, perhaps charitably, that it's because they don't understand how the internet works. Either way, this needs to change. berjon.com/fascintern-m...
berjon.com
Fascintern Media
We are facing a coordinated international fascist movement that works with explicit backing from Moscow, Washington, and tech monopolies, and is propagating itself through its own media apparatus. Yet...
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Dan Siemon @coverfire.com · 18/11/2025
I'm at Broadband Nation this week. Anyone around and want to chat? www.broadbandnationexpo.com
broadbandnationexpo.com
Broadband Nation Expo
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