Tabish
343 posts

Tabish
@0xTab
Founder @ OpenSpec (YC W26)
San Francisco / Sydney Katılım Mayıs 2025
480 Takip Edilen1.4K Takipçiler

Excited to announce that Ricky and I are joining @ycombinator
A year and a half ago, we joined @mintlify, where we overlapped paths. Ricardo went from sales to eng, and I went from eng to sales. The sales org started small with just me and the head of sales, and now we've grown to over 12 reps and 3 solutions engineers. Ricky joined when the engineering team was 3 people, and he's helped scale the team to over 20 engineers.
Ricardo and I didn't want to leave Mintlify because work didn't feel like work. We played ping pong, solved customer pain points, shipped and sunsetted features, and a lot more. We also learned a fuck ton from @handotdev and @hahnbeelee.
Ricardo and I left because we wanted to build a tool that was beyond our internal sales team. As both of us come from sales backgrounds, we noticed a few key problems: the modern GTM stack is fragmented, data in CRMs is missing/incomplete, and reps have limited time to context switch between calls. Perhaps the biggest insight: how do reps increase deal ACV through value selling and not line-item selling?
We'll be launching in the upcoming weeks.
If you're in sales or building a GTM team, check out our GTM audit salesgraph.com/gtm-audit, a cheatsheet on your company's GTM motion to help reps with background research.
Mintlify salesgraph.com/gtm-audit/mint…
Vercel salesgraph.com/gtm-audit/verc…
Browserbase salesgraph.com/gtm-audit/brow…
I would also love to chat about your team's current sales processes, dm me, coffee on me!
As once said by a wise man, "always be selling".
This picture is a screenshot from our YC video 😅 the only pic I have of us two

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@TimHaines Let me know if it works as expected first, I’m looking to add some under the hood skills that teach the model how to navigate these scenarios better, but what’s missing is some concept of staleness that tells the model “things have changed, proceed with caution”
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@0xTab Ahh! This would probably be a good add to the docs - unless I missed it in there somewhere.
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@0xTab what's the best video to watch to get up to speed on the latest openspec, starting from never using openspec before?
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@TimHaines Hmm, in theory yes but usually I’m a bit more cautious and for my sanity I would explicitly say something like:
/opsx:apply we’ve updated the plan and changed the tasks, find the best way to continue
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@0xTab Your docs are pretty decent.
If you start apply, you can pause, edit the artifacts, and apply again, and it’ll do something sensible?
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@TimHaines but honestly the best way to start is to just start using it IMO and learn along the way :))
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@TimHaines I've always found Hari's videos a lot more down to earth, he uses and keeps up to date with OpenSpec a lot.
(compared to others that are like "how I ended vibe coding!!!")
Check out his blog and videos here: intent-driven.dev
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@shiv_kampani One more YC convert! Need to start a slack channel with everyone in the batch using it :))
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OpenSpec is awesome! Just used it to build our new long horizon people search harness. @0xTab is the goat
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@sergeybunas @serafimcloud Extensibility primarily, I just have some kooky ideas I want to test out and it looks more achievable in Pi than cc sdk for now at least. Will report back with something more concrete once it’s built lol.
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@0xTab @serafimcloud Thanks! What do you think the best thing about Pi ?
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@ycombinator @OpenSpec_ Been an amazing journey, keen to keep pushing the space forward!
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.@OpenSpec_ is building the open-source spec framework for coding agents. It helps devs generate software specifications that evolve with their codebase, making their agents reliable enough to take on larger, more complex work.
Congrats on the launch, @0xtab!
ycombinator.com/launches/Pdc-o…
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I used @Remotion to vibe code all of the graphics here, super cool tool. If you’re an OpenSpec fan please like & RT the post below!
Y Combinator@ycombinator
.@OpenSpec_ is building the open-source spec framework for coding agents. It helps devs generate software specifications that evolve with their codebase, making their agents reliable enough to take on larger, more complex work. Congrats on the launch, @0xtab! ycombinator.com/launches/Pdc-o…
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Tabish retweetledi

Still doubting if you need a proper methodology when writing code with AI?
Spoiler: You definitely do.
I highly recommend this excellent practical guide on Spec-Driven Development to get you started: todorovic.dev/blog/spec-driv…
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This is one of the coolest projects I've seen in recent times; it takes building in public to the next level.
An agent that builds itself autonomously and evolves in real time, all while maintaining a public journal that shows what work the agent decides to take on.
The future of software has never been more exciting.


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Tabish retweetledi

This new Symphony project from @OpenAI looks like something from the future.
The project is a spec, and you ask your favorite agent to actually build it for you.
TL;DR: Symphony is a lite project/task orchestrator.
Will try it soon!
github.com/openai/symphony

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@tlberglund @gAmUssA @Claude Engineering isn't dead, it just takes a different form. Let me know if you have any feedback on OpenSpec!
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