Arvid Kahl

Arvid Kahl

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Sold FeedbackPanda; advises bootstrapped founders (audience-first, exits, growth).

AI Turns Public Transparency Into Competitor Blueprint
SocialApr 3, 2026

AI Turns Public Transparency Into Competitor Blueprint

Building in public has been fundamentally changed by the advent of AI. Pains me to say it, but the transparency playbook that built my career now hands competitors a blueprint. Here's what I still share (and what I never will. Anymore.) https://t.co/dejGIMcP7M

By Arvid Kahl
Anthropic Leaked Claude Code for Covert Community Review
SocialMar 31, 2026

Anthropic Leaked Claude Code for Covert Community Review

Hot take: Anthropic leaked Claude Code intentionally to get a nerdosphere code review it would have never gotten if they had just open-sourced it.

By Arvid Kahl
Payment Fees Are a Business Cost, Not a Complaint
SocialMar 30, 2026

Payment Fees Are a Business Cost, Not a Complaint

The people surprised by this have yet to learn of the cost of doing business and just how much a payment provider does for them. $17k on $600k revenue isn’t something you complain about out. You price it in.

By Arvid Kahl
Avoiding Parallelism: One Task at a Time Improves Focus
SocialMar 30, 2026

Avoiding Parallelism: One Task at a Time Improves Focus

I'm capped at 1. The moment I start juggling, I drop my concentration. An agent is a DIRECT execution tool for me, not a delegate-among-many. Might be a me issue, or a tooling issue. But right now, I'm staying away from...

By Arvid Kahl
Unearthing Hidden Claude Skills Through Random Mentions
SocialMar 29, 2026

Unearthing Hidden Claude Skills Through Random Mentions

The discovery of Claude skills still is an unsolved problem. I learn of the most insane high-impact skills from throwaway mentions in some reply somewhere. My mobile browser is full of links like these. What’s the most impressive Claude skill...

By Arvid Kahl
Expensive Tiers Boast, Real Builders Stay Silent
SocialMar 27, 2026

Expensive Tiers Boast, Real Builders Stay Silent

Yeah, this tracks. A lot of the people I see foaming at their mouths have been using the $200 tier for performative "here are my 10 parallel agents" screenshots and have very little to show for it. Meanwhile, the builders...

By Arvid Kahl
Slow, Low‑heat Onions with Butter Transform Every Dish
SocialMar 27, 2026

Slow, Low‑heat Onions with Butter Transform Every Dish

Biggest culinary upgrade for me in recent years was lowering the cooking temperature for onions and taking lots of time (and, of course, butter). Makes any and all dishes better. Can't rush aromatics.

By Arvid Kahl
Podscan Finally Mentioned Alongside Apple After Two Years
SocialMar 27, 2026

Podscan Finally Mentioned Alongside Apple After Two Years

Obviously, I have set up alerting for "Podscan" on Podscan itself. And I love how podcasters are starting to mention the platform along with the massive incumbents like Apple. This one just came in. Took 2 years to get to this...

By Arvid Kahl
Proactive Code Scanning: Fix Bugs Before They Occur
SocialMar 26, 2026

Proactive Code Scanning: Fix Bugs Before They Occur

Now extrapolate this into the future: instead of just reactively fixing issues when they occur, the next step is to proactively fix them as they are detected by a background agent that scans the codebase 24/7 and simulates error scenarios.

By Arvid Kahl
Need Git Commits to Capture Full Prompt Context
SocialMar 25, 2026

Need Git Commits to Capture Full Prompt Context

I wish Claude Code would automatically include the prompts + the full context in a repo as a git commit "note". The full conversation that led from zero to feature, and I want it in git blame, not just who did...

By Arvid Kahl
Future 10x Engineers Thrive on Code Review, Not Writing
SocialMar 24, 2026

Future 10x Engineers Thrive on Code Review, Not Writing

The 10x engineer of tomorrow will look quite different from what it has been. I was never an outstanding dev. But I have a sense of what performant and good code looks like. Been copying it from SO for years.🤣 And now,...

By Arvid Kahl
AI Speeds up PHP Tests From 20 Minutes to 3
SocialMar 24, 2026

AI Speeds up PHP Tests From 20 Minutes to 3

My full PHP test suite took 20+ minutes. Unbearable. Yesterday, I asked Claude Code to speed up my test suite. I knew that parallel testing would be a massive time saver, but I had set it up so that things immediately...

By Arvid Kahl
Claude's OS Control Makes OpenClaw Mac Minis Indispensable
SocialMar 24, 2026

Claude's OS Control Makes OpenClaw Mac Minis Indispensable

All those OpenClaw Mac Minis are going to be really useful now that Claude has full control of the OS.

By Arvid Kahl
Edge AI Brings Private LLMs to Personal Devices
SocialMar 23, 2026

Edge AI Brings Private LLMs to Personal Devices

AI is moving to the edge. Private, isolated LLMs are coming to our tablets, phones, and laptops. Ownership, privacy, access. All things APIs don't/won't/can't give us now. This is significant. And sure, it's slow right now, but this is the slowest it...

By Arvid Kahl
AI Can Instantly Double Your Test Coverage
SocialMar 21, 2026

AI Can Instantly Double Your Test Coverage

Okay this might be totally obvious but you can just tell Claude Code to double your test coverage and it will actually do it. Will need a lot of review, but if you’re just getting started with adding tests to your...

By Arvid Kahl
Ban on AI Tools Feels Like Losing Your Driver’s License
SocialMar 20, 2026

Ban on AI Tools Feels Like Losing Your Driver’s License

This kind of ban (on Claude, your Google account, or similar) is becoming the digital equivalent of losing your drivers license. And for what? Using some open source agentic harness because you saw someone share a cool screenshot? :/

By Arvid Kahl
90% of Queries Resolved by Knowledge Base Articles
SocialMar 20, 2026

90% of Queries Resolved by Knowledge Base Articles

Opposite experience, from the other side (operating one). The majority of user questions can be answered through surfacing the right knowledge base article or quoting from it. Remaining 10% come through. Nathan likely is a more “resourceful” customer who does actually...

By Arvid Kahl
AI Providers Clamp Down on Agents; Founders Unprepared
SocialMar 20, 2026

AI Providers Clamp Down on Agents; Founders Unprepared

Google is banning accounts. Anthropic is locking down their plans. Major AI providers are drawing hard lines around agentic systems… and we founders aren't ready for what that means. Not just for our agentic coding, but how we deal with liability...

By Arvid Kahl
Never Manually Edit Code When Using AI Agents
SocialMar 19, 2026

Never Manually Edit Code When Using AI Agents

One of my most painful realizations using agentic systems is that they treat all work-in-progress as ephemeral. They’ll gladly reset your branch or dev database to “try something”, because they expect to write working code eventually. Never manually add code while...

By Arvid Kahl
Transparent Ads Preserve Trust; Hidden Sponsorship Harms Credibility
SocialMar 19, 2026

Transparent Ads Preserve Trust; Hidden Sponsorship Harms Credibility

“Native” advertisement, am I right. Ads are fine, as long as it’s clear they’re paid placements. Stuff like this breaks immersion and destroys author trust. Horrible practice.

By Arvid Kahl
Cut AI API Costs by Using Flex Tier First
SocialMar 18, 2026

Cut AI API Costs by Using Flex Tier First

If you do AI inference via OpenAI’s API, you should use the flex tier for half price. My requests always try to use flex tier first, and on 429 / 500 errors, I use the default service tier. 95% of my...

By Arvid Kahl
AI Overpromises: Claude Can't Deliver All in 30 Minutes
SocialMar 17, 2026

AI Overpromises: Claude Can't Deliver All in 30 Minutes

Claude, you'll be done with implementing ALL of these improvements in like 30 minutes, including full test coverage and security analysis. You know it. I know it. Which, as Claude shows pre-AI estimates, is WILD. https://t.co/aB2o472961

By Arvid Kahl
AI Makes Public Building Risky; Founders Turn Silent
SocialMar 16, 2026

AI Makes Public Building Risky; Founders Turn Silent

This is why building in public, as fun and empowering as it is, has severe limits. Competitors have a significantly easier time now than before AI to build functionally critical-mass-escaping clones to swipe the bottom of the barrel. Lots of founders are...

By Arvid Kahl
AI Turns Vague Ideas Into Working Code Instantly
SocialMar 16, 2026

AI Turns Vague Ideas Into Working Code Instantly

People acting like "Hey Claude Code, implement this feature I dreamt of just now and have no idea how to even start building" and then prototyping a fully-fledged working implementation isn't anything short of magic.

By Arvid Kahl
Achieving UI/API Parity Enables Rapid Custom Interfaces for All
SocialMar 16, 2026

Achieving UI/API Parity Enables Rapid Custom Interfaces for All

This is a long-term bet of mine, which is why I’m working on full parity between UI functionality and API affordances. Because ultimately, this opens the door to full custom UIs spun up in a few agentic coding hours on top...

By Arvid Kahl
Prompt Claude Code for Full OWASP Security Sweep
SocialMar 14, 2026

Prompt Claude Code for Full OWASP Security Sweep

What do you use to have Claude Code do a full security sweep of your codebase? My go-to is “Run a deep OWASP security sweep of the full app, all APIs and any internal services. Report in descending severity and suggest...

By Arvid Kahl
AI on CPU Will Become as Routine as JSON.parse
SocialMar 12, 2026

AI on CPU Will Become as Routine as JSON.parse

AI on CPU means AI-as-a-primitive. AI.answerQuestion() will be as normal as JSON.parse() once this becomes baked into either the frameworks, languages, or even on the OS level. And I’m very much here for it. Love to see these steps towards...

By Arvid Kahl
Walmart Urged to Secure Email Relay Against Phishing
SocialMar 10, 2026

Walmart Urged to Secure Email Relay Against Phishing

Hey @walmart (or maybe @Walmarttech), could you kindly configure your email relay domain(!) so it can't send phishing emails? I get these once a week, and it's a pretty bad look. https://t.co/lerflUl2eR

By Arvid Kahl
Chrome Extension Becomes Malicious After Ownership Transfer
SocialMar 10, 2026

Chrome Extension Becomes Malicious After Ownership Transfer

Roses are red. Violets are blue. Chrome Extension Turns Malicious After Ownership Transfer, Enabling Code Injection and Data Theft

By Arvid Kahl
Give SaaS Users an API, Empower Their Agents
SocialMar 8, 2026

Give SaaS Users an API, Empower Their Agents

Every SaaS must offer an API to its data & functionality. If you run a SaaS, consider this: eventually, all your serious users will run some kind of agentic tool to get work done. The question is: will you make it easier...

By Arvid Kahl
Never Let Claude Manage Production Infra without Humans
SocialMar 6, 2026

Never Let Claude Manage Production Infra without Humans

Unless you're Pieter Levels, do NOT RUN CLAUDE on your production system or infrastructure. It's a very charismatic toddler when it comes to understanding business consequences. It WILL do something completely disastrous eventually. Human in the loop for all infra work. ALWAYS.

By Arvid Kahl
Unresolved Technical Debt Undermines Product, Morale, and Business
SocialMar 1, 2026

Unresolved Technical Debt Undermines Product, Morale, and Business

Just like regular 0.8x developers, but this time much faster, unresolved technical debt will kill first any real improvements to the product, then morale, then the business.

By Arvid Kahl
Habit Retention Beats Occasional Relapse to Competitors
SocialMar 1, 2026

Habit Retention Beats Occasional Relapse to Competitors

I wonder which of these is better: having people make using your app a habit or having people relapse into using your app even after they try the competition...

By Arvid Kahl
Tech Adoption Lag: Most People Resist New AI Tools
SocialFeb 27, 2026

Tech Adoption Lag: Most People Resist New AI Tools

The one thing that keeps me from indulging in the AI panic is the sheer reluctance of most people I've met in my life to adjust to new technology. All these wonderful things exist at the fingertips of each human...

By Arvid Kahl
Flawed yet Genius Method to Decode Customer Intent
SocialFeb 26, 2026

Flawed yet Genius Method to Decode Customer Intent

This both genius and massively flawed. And I love it. Depend song on the average communication skill level of your customers, we might finally have found a way to truly understand customer intent. Placeholder should have been “I want X so...

By Arvid Kahl
Ten Years to Profit: Turning Deep Red Into Success
SocialFeb 26, 2026

Ten Years to Profit: Turning Deep Red Into Success

It took “just” ten years for them to be profitable. It’s easy to look at this graph and have vitriolic thoughts. But ultimately, profitability is one of the hardest things to ever reach. Series J or bootstrapped. It’s amazing to have turned...

By Arvid Kahl
Delegation Mastery May Blind Us to Core Fundamentals
SocialFeb 24, 2026

Delegation Mastery May Blind Us to Core Fundamentals

There will be a weird generation of people who are really, really good at delegating, but at some point won't know what they should actually be delegating to all these systems. And then 10 years later, we'll magically rediscover the concept...

By Arvid Kahl
Openclaw's Clever Design Masks Potential Negligence and Hidden ToS Breaches
SocialFeb 24, 2026

Openclaw's Clever Design Masks Potential Negligence and Hidden ToS Breaches

Yikes. If this is true, then it’s both pretty ingenious and supremely negligent. I wonder what percentage of users have done a code audit of Openclaw. And what other fun ToS-voiding surprises lurk in there.

By Arvid Kahl
Virality Doesn't Equal Follower Growth on X
SocialFeb 23, 2026

Virality Doesn't Equal Follower Growth on X

If you're chasing virality on X, it does nothing for your followers. Here are analytics from two days, side by side. One with 30k views, and one with over a million. The 30k day saw a lot more followers. The viral post?...

By Arvid Kahl
Quality Code Costs More than Cheap Code
SocialFeb 23, 2026

Quality Code Costs More than Cheap Code

Agentic coding highlights the age-old truth that "writing code is cheap," while writing good code is extremely expensive. You could always pay someone inexperienced very little to kinda get it done. But real quality had its price. Zero difference when AI is...

By Arvid Kahl
Own Your Email, Don't Rely on Google Accounts
SocialFeb 23, 2026

Own Your Email, Don't Rely on Google Accounts

It’s wild that in a time where Google account are one of the most popular choice for logging into any 3rd-party service, they can be arbitrarily banned like this. Own your email. Own your domain. Don’t delegate. Sucks that this is...

By Arvid Kahl
Hacker News' “Impossible” Products Prove Surprisingly Viable
SocialFeb 23, 2026

Hacker News' “Impossible” Products Prove Surprisingly Viable

This is great. A list of all the products Hacker News thought would never work. Sure, the default to response to ANY project on HN is that it could be copied on a weekend. But this list is _strong_ 🤣 https://t.co/4AiXf2WiXw

By Arvid Kahl
Non‑technical Users Adopt Early; Founders Must Rethink Assumptions
SocialFeb 22, 2026

Non‑technical Users Adopt Early; Founders Must Rethink Assumptions

And this is peak "innovators" phase of adoption. Consider that during the earliest product adoption phase, non-technical folks are already doing the thing many believe "no one will ever do." We, the founders, need to adjust our system of beliefs NOW.

By Arvid Kahl
Seeking Laravel Spark Billing Extensions and Migration Options
SocialFeb 22, 2026

Seeking Laravel Spark Billing Extensions and Migration Options

Question for the @laravelphp Spark users out there, ideally the Paddle version: how have you extended billing for things like credits/optional subscriptions/one-time-payments? Anything more comprehensive out there? Is there a migration path?

By Arvid Kahl
Automated Outreach Drives Growth without Any Ads
SocialFeb 18, 2026

Automated Outreach Drives Growth without Any Ads

The last 25min on Podscan have been pretty exciting :D I have fully automated my customer discovery and outreach process. It's picking up quite a bit. And that's with 0 ads. I'll open that faucet soon, too. https://t.co/BY5051Wnm8

By Arvid Kahl
Brilliant Founders Chase the Next Improvement, Not Accolades
SocialFeb 18, 2026

Brilliant Founders Chase the Next Improvement, Not Accolades

This is what makes Lukas such a brilliant founder. It's not enough for him that an interview with the German Chancellor is using his SaaS. He's looking around for opportunities to make it even better and spots a sticker on...

By Arvid Kahl
Prediction Markets Turn Insiders Into Profit-Driven Actors
SocialFeb 15, 2026

Prediction Markets Turn Insiders Into Profit-Driven Actors

This is the kind of stuff that I don't understand about g̶a̶m̶b̶l̶i̶n̶g̶ prediction markets: doesn't it not only encourage insider betting, but also insider action? This is the wildest conflict-of-interest-as-a-Service platform I've ever seen. For ANY kind of event.

By Arvid Kahl
Switching LLMs Wastes Time; Stick to One
SocialFeb 14, 2026

Switching LLMs Wastes Time; Stick to One

I don't really understand devs who jump back and forth between LLM providers. Claude, Codex, Claude, Gemini, back to Codex, then Claude. What marginal improvement can be worth the massive context shift every single time? Pick one and build. You won't have...

By Arvid Kahl
Choose AI for Purposeful Creation, Not Just Task Automation
SocialFeb 12, 2026

Choose AI for Purposeful Creation, Not Just Task Automation

Reading this essay made me ask myself a question: am I using this to „do the thing“ or just to „do a thing?“ Interesting nuance here. I personally use AI very much as a deliberate tool, both in building & running a...

By Arvid Kahl