Lightsprint(YC P26)

YC office hours changed how we think about building. Office Hours by Gstack gives you that. A CEO to pressure-test your product idea and a CTO to break it into something buildable. Start in 2 minutes. lightsprint.ai/office-hours

We’ll be sponsoring credits for the gstack x gbrain hackathon happening at @ycombinator ! Come join us and get a custom sticker for your company from our sticker printer 🔥 events.ycombinator.com/GStack

Lightsprint.ai has created hosted GStack, so it's the fastest way to get going on creating new things

@garrytan Product development with Gstack is going to change the entire SDLC 🔥🫡

Lightsprint now supports Gstack! Go to lightsprint.ai/gstack to try out our design shotgun and implement the plan in one-shot

@clairevo @stripe @ow This is super cool! We’re building a codebase aware product development platform that helps PMs ship production-ready code in a sandbox. It takes the design style guide from the codebase and comes up with a few visual plans for PMs to choose. Try us out! 🙂

While your team is just getting started vibe coding prototypes, the team at @stripe is vibe coding a full vibe coding platform. @ow is a design manager at Stripe who built Protodash - an internal AI prototyping tool that lets designers and PMs spin up real, clickable prototypes in minutes. In this ep he walks through: - why generic AI tools produce "blurple slop" that doesn't match your design system - how he built a full prototyping studio on top of dev boxes with cursor + cc - why more PMs than designers now use Protodash - the design review mode that lets teams ship feedback direct in the app Plus, we talk about getting to the ultimate dream: demos, not memos. ty to our sponsors! 🧠 @Celigo - Intelligent automation built for AI 💻 @cursor_ai - The best way to code with AI Full episode on yt: youtu.be/hQFEAZK__q0

Our planning engine is now live! We've been pretty blown away by how it's able to let agents one-shot an entire feature 🤯. Follow, like and repost and DM us and we will send you free credits to try it out!

Our non-technical intern shipped new features to LightSprint yesterday. She described what she wanted in plain English. LightSprint made the change on our live codebase, gave her a preview URL to click through, and opened a PR. Our engineer reviewed it and merged. Whole thing took 15 minutes. This isn't a prototype tool. It works on your real product, with your real code, shipping to your real users. Try it: lightsprint.ai

Lightsprint is now integrated with managed agents from @AnthropicAI ! Like and repost and we'll send you free credits for lightsprint.ai

@ryancarson Would love for you to try out lightsprint.ai !

Everyone is building their own internal version of Ramp’s Inspect.

LightSprint is the product version of what Harvey built internally. A collaborative platform where AI coding agents run in the cloud, tied to a shared task board, with preview environments for every PR and real-time visibility for the entire team lightsprint.substack.com/p/harvey-built…

@claudeai This is great for our coding agents orchestration!

Introducing Claude Managed Agents: everything you need to build and deploy agents at scale. It pairs an agent harness tuned for performance with production infrastructure, so you can go from prototype to launch in days. Now in public beta on the Claude Platform.

@geoffreywoo Build CLIs!

every saas founder who doesnt convert to api-first architecture in the next 6 months will get obliterated by agents your beautiful dashboard means nothing when codex and claude can call your endpoints directly stop building interfaces, start building infrastructure

Lightsprint is now part of YC26! The energy in the room is unreal. 🚀

We've just launched codebase health! As teams increasingly approve code written by coding agents, we want to help repos stay clean by looking at issues for - Duplication - Separation of Concerns - Code Quality - Testability - Schema Health - State Management - Abstraction Quality - Security - Performance You can simply click on the suggestion, add to our task list and our coding agents will begin work to clean up the codebase.

@snowmaker We're seeing this firsthand. When devs orchestrate AI agents instead of writing every line, the whole PM workflow breaks. Built Lightsprint from scratch for this—codebase-aware tasks, agent orchestration, auto-tracking from commits. New paradigm needs new tools.

Software engineering changed more in the last 3 months than the preceeding 30 years. Everything about running a software company needs to be rethought from first principles.