The Engineer's Stack
Ten minds that shaped how software is actually built.
Grace Hopper and Margaret Hamilton did something harder than write good code: they defined what good code means when lives or missions depend on it. Andrej Karpathy and Rich Hickey represent the two poles of current engineering philosophy — one building toward systems that learn, the other insisting that complexity itself is the enemy. Donald Knuth and Brian Kernighan are here not for nostalgia but because their standards of rigour and tool-composability remain unmatched. Tim Berners-Lee rounds the set as a reminder that the most consequential engineering decisions are often architectural and irreversible.
10 .md files + 10 Claude Skill .zip files, delivered by email within ~60 seconds of payment.
- ✓10 persona frameworks (Andrej Karpathy, Grace Hopper + 8 more)
- ✓Native Claude Skill .zip per persona
- ✓Plain .md for ChatGPT, Gemini, any LLM
- ✓Same $29.99 ten-pack rate as building your own
- ✓No subscription, no account
Delivered by email · Stripe · Instant
I already own some of these frameworks. Can I get a partial price?
Not currently. The bundle is sold as a set at the $29.99 ten-pack rate — there is no system to detect or credit prior purchases. If you own four or more of the ten already, it may make more sense to buy the remaining ones individually at $4.99 each. We may add deduplication logic in future; for now, the honest answer is: do the maths yourself.
Do these work with ChatGPT, Gemini, and other LLMs?
Yes. Every purchase includes both a native Claude Skill (.zip, for Claude.ai and Claude Code) and a plain .md file that works in ChatGPT Custom GPTs, Gemini, API system prompts, or anywhere you can give your LLM context. The .md is the universal format.
What is the refund policy?
Reply to the delivery email and ask for a refund — no questions. We process it within 24 hours. The cost to us is trivial; the cost to you of a dud purchase is $29.99 and we would rather refund than leave you feeling burnt.