Tabish
@0xTab
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Founder @ OpenSpec (YC W26)
San Francisco / Sydney
Joined May 2025
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!
.@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!
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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
A practical, in-depth OpenSpec guide for developers using Codex or Claude Code, from first principles to component-level spec-driven delivery.
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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
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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! https://t.co/oHjV6siujr
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SF is crazy, ran into some other YC founders who had renamed their group chat to “use OpenSpec” as a reminder to install the project haha. Whoever pitched them OpenSpec last wed night please get in touch with me 😂
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I can finally update the OpenSpec logo to not look like the minecraft font
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Ok now we HAVE to do OpenSpec x OpenClaw collab
The lobster has molted into its final form 🦞 Clawd → Moltbot → OpenClaw 100k+ GitHub stars. 2M visitors in a week. And finally, a name that'll stick. Your assistant. Your machine. Your rules. https://t.co/d39LXKRE9h
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I should just send this anytime someone asks me about Github's Spec-Kit vs OpenSpec 🫠
@VibeCoderOfek @airesearch12 @karpathy @airesearch12 😉 For MS/GH this is just another side project, for us this is the *only* thing we focus on. We're not perfect by any means, but we are outcompeting a billion dollar org and actually giving a f*ck about our users instead of treating them as just marketing for
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Damn we gotta get @karpathy to try out OpenSpec in 2026 💯
@airesearch12 💯 @ Spec-driven development It's the limit of imperative -> declarative transition, basically being declarative entirely. Relatedly my mind was recently blown by https://t.co/pTfOfWwcW1 , extreme and early but inspiring example.
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Oh I didn't even mention we revamped our entire readme + new docs
We just shipped OpenSpec v1.0! We've taken months of learning and feedback and put it into one release. Completely overhauling the internals to make OpenSpec more fluid and hackable. Here's what's new 👇
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7/8 - Plus lots more • Custom schemas - define your own artifact workflows • Project config - openspec/config.yaml for context + rules • Bulk archive - /opsx:bulk-archive for archiving parallel changes Release notes:
github.com
What's New in v1.0.0 OpenSpec 1.0 marks the transition from experimental to stable. The workflow has been rebuilt around an action-based system where AI understands your project's state—wha...
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6/8 - Onboard Command New to OpenSpec? Guided walkthrough of the full workflow using your actual codebase. ~5 minutes to see it all in action.
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5/8- Dynamic Instructions AI instructions are no longer static. Assembled from 3 layers: • Context - your project background • Rules - artifact-specific constraints • Template - output structure
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4/8 - New Verify Command Checks that what you built matches what you planned. • Completeness - all tasks done? • Correctness - all requirements implemented? • Coherence - code follows the design? Run before you archive.
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