Show HN: Lightski – Cursor for Technical Design Docs, Peer Reviews, and PRDs
Hey everyone! My name’s Hansen and I’m the founder of Lightski. We're building an AI-powered text-editor to help engineers write technical design docs, RFCs, peer reviews, onboarding docs, PRDs (basically anything that’s not code). You can sign up and try it at https://www.lightski.com/
Previously as a tech lead and engineering manager, I wrote TDDs and RFCs almost once a week. I spent more time writing in our knowledgebase (Slab/Notion) than writing code! AI has revolutionized how we write code (Cursor, Windsurf) and prose (Type.ai, Lex, Jenni, Gemini), but there hasn’t been any tool tailored to the types of documents an engineer needs to write, until now.
Lightski is a collaborative Markdown text-editor that indexes and references your company’s Github repository. This allows Lightski to find relevant files and schemas, and format them appropriately for a document. For example, you can:
* Ask Lightski to automatically convert a DB schema into a more readable table: https://www.lightski.com/videos/2025-02-13-schema-transforma...
* Create a first draft with citations to code: https://www.lightski.com/videos/2025-02-13-new-document-1.mp...
* Explain complex code logic in pseudocode
* Fetch recent commits to draft a self or peer review, etc!
Long-term, we’re aiming to build an intelligent knowledgebase for technical information: one connected to your codebase, documentation, and ticketing system, in order to speed up how teams collaborate. We believe that written communication will never go away and aim to build the fastest possible way for engineers to write down what’s in their brain to help with collaboration.
I’ll be in the comments, or feel free to email me at founders@lightski.com! I'm a PM so the PRD callout caught my attention, but I don't feel like there's really anything in the product that's well ... product focused. I'm not sure how Github integration really helps me for this use case. Google Drive would, but Claude has that and I'm not sure I see any benefits for my use case over just using Claude. If I'm missing something please let me know. > In a world of AI slop, we believe in a human-curated touch. Lightski is not hands-off document generation; instead, we make written technical communication faster and easier. I also think this sounds exactly like AI slop, which undercuts your point. If you're trying to be cheeky, I don't think it comes across well. Just my opinion. Thanks for the feedback! The term "PRD" is pretty overloaded in that it's often used interchangeably by engineers to refer to technical design docs/requests for comments/spikes/etc (people really need to align on a single term for these), so I used it here to capture everything. Agreed that we didn't build the product as it currently stands for PMs--working on integrating other sources like GDrive, Notion, Coda, etc in the future though! On your second point, are you saying that the quoted text sound like AI slop? Interesting feedback...I hand wrote that without AI so perhaps our prose style is different. Will give it more thought.