Show HN: Lightski – Cursor for Technical Design Docs, Peer Reviews, and PRDs

by Hansenq on 3/19/2025, 11:05:44 PM with 2 comments
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!

  • by redeux on 3/19/2025, 11:15:44 PM

    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.