Cash & Cache
Where Strategy Meets Execution
What you get with Cash & Cache
Practical resources built for people who implement AI strategically and want to stay ahead of the curve.
AI Frameworks
Agent scaffolds, skill files, RAG pipelines, and Cursor rules — ready to use in production.
Prompt Engineering
Structured prompts for competitive research, decision-making, and AI product building.
Strategy Templates
Implementation playbooks, evaluation scorecards, and decision frameworks for AI leaders.
Weekly Insights
Curated breakdowns of AI breakthroughs and tech trends that actually matter to builders.
Free resources & a taste of premium
Build Transferable AI Prompting Skills
A 10-minute interview prompt that generates a personalised 5-prompt framework built around your work, audience, and specific frustrations — reusable across any AI tool without starting from scratch every session.
AutoResearch for Claude Skills
Two slash commands — /eval-suite-wizard and /auto-research — that auto-generate a binary eval suite for any SKILL.md file, then run a self-improving loop: test → score → patch → retest until your skill hits a target pass rate or iteration cap.
Build a Custom AI Pipeline in 10 Minutes
The /build-my-pipeline wizard interviews you about your workflow, then auto-generates a complete chained multi-skill orchestrator — all stage skill files included — so you go from idea to running AI pipeline in one session.
Free vs Premium
See exactly what you unlock when you go premium.
- Regular public posts
Full access to the library, kits, and every tool we build.
Upgrade to Premium- Deeper implementation guides on AI workflows
- Ready-to-download templates to improve how you strategize with AI
- Get full access to all our tools, resource library and start community chat threads
- Partnership discounts on premium tiers of our favourite Substack channels
Flexible — pay what you choose above $70/yr
For those who want to go deeper and support the mission.
Become a Founding Member- Deeper implementation guides on AI workflows
- Ready-to-download templates to improve how you strategize with AI
- Get full access to all our tools, resource library and start community chat threads
- Partnership discounts on premium tiers of our favourite Substack channels
- ExclusiveMonthly 1:1 AI Workflow Session
Who we are
Two practitioners obsessed with making AI work in the real world.
Raghav Mehra
AI Strategy & Consulting
Capital markets fintech professional turned tech consultant. Writes about how business and product leaders can build practical working relationships with AI — without reinventing how they operate.
Ashwin Francis
AI Implementation & Automation
Financial services consultant who automates the parts of work nobody enjoys. Writes about what works, what breaks, and when AI genuinely needs a human in the loop.
What creators are saying
Recommended by Substack creators and AI practitioners.
“Cash & Cache is one of the few AI newsletters that goes beyond hype and actually explains how the technology, economics, and implementation work in the real world. If you care about AI strategy, market shifts, and hands-on workflows.”
Joshua Davis
AI & No-Code Exits
“Cash & Cache goes past the hype and shows you how AI actually works under the hood, from the economics to the implementation. Ashwin and Raghav bring finance and tech expertise, with case studies and workflows you can deploy in your own work.”
Frank Andrade
Artificial Corner
“There are few creators on Substack that are able to talk about AI business and introduce tools and workflows at the level of Ashwin and Raghav. This is a must read.”
Joel Salinas
Leadership in Change
“Cash & Cache by Raghav Mehra and Ashwin Francis is a sharp weekly newsletter blending cutting-edge AI breakthroughs with practical implementation strategies for tech leaders and practitioners. Perfect for busy professionals who want frontier insights, real case studies, and deployable workflows — from prompt engineering to enterprise AI — without the hype or fluff.”
Petar Dimov
22nd Century Frontier®
“Cash & Cache is one of the most well-researched and genuinely useful Substacks about AI across the whole platform. Raghav and Ashwin bring technical expertise and lived experience to create work and case studies that actually work. One of the first newsletters I look for.”
Sam Illingworth
Slow AI
“Cash & Cache is a weekly gem packed with insights on AI and finance. What I love most is their focus on the backend complexities — how things actually work under the hood. Raghav and Ashwin teach me something new every single week.”
Mia Kiraki
ROBOTS ATE MY HOMEWORK
“Raghav and Ashwin offer wildly original takes on AI grounded in their combined expertise in finance and tech. A must read!”
Karen Spinner
Wondering About AI
“Stay updated with what's happening with AI.”
Dheeraj Sharma
GenAI Unplugged
“If you want to learn about AI and finance, this is your blog.”
Marcela Distefano
Ethics, Life and AI
“Cash & Cache is one of my favorite publications on Substack. I learn so much about AI & money every single article Raghav & Ashwin put out. Hands-down one of the best publications on Substack!”
Jessica Drapluk
Unstuck to Published
“Cash & Cache is one of the few AI newsletters that goes beyond hype and actually explains how the technology, economics, and implementation work in the real world. If you care about AI strategy, market shifts, and hands-on workflows.”
Joshua Davis
AI & No-Code Exits
“Cash & Cache goes past the hype and shows you how AI actually works under the hood, from the economics to the implementation. Ashwin and Raghav bring finance and tech expertise, with case studies and workflows you can deploy in your own work.”
Frank Andrade
Artificial Corner
“There are few creators on Substack that are able to talk about AI business and introduce tools and workflows at the level of Ashwin and Raghav. This is a must read.”
Joel Salinas
Leadership in Change
“Cash & Cache by Raghav Mehra and Ashwin Francis is a sharp weekly newsletter blending cutting-edge AI breakthroughs with practical implementation strategies for tech leaders and practitioners. Perfect for busy professionals who want frontier insights, real case studies, and deployable workflows — from prompt engineering to enterprise AI — without the hype or fluff.”
Petar Dimov
22nd Century Frontier®
“Cash & Cache is one of the most well-researched and genuinely useful Substacks about AI across the whole platform. Raghav and Ashwin bring technical expertise and lived experience to create work and case studies that actually work. One of the first newsletters I look for.”
Sam Illingworth
Slow AI
“Cash & Cache is a weekly gem packed with insights on AI and finance. What I love most is their focus on the backend complexities — how things actually work under the hood. Raghav and Ashwin teach me something new every single week.”
Mia Kiraki
ROBOTS ATE MY HOMEWORK
“Raghav and Ashwin offer wildly original takes on AI grounded in their combined expertise in finance and tech. A must read!”
Karen Spinner
Wondering About AI
“Stay updated with what's happening with AI.”
Dheeraj Sharma
GenAI Unplugged
“If you want to learn about AI and finance, this is your blog.”
Marcela Distefano
Ethics, Life and AI
“Cash & Cache is one of my favorite publications on Substack. I learn so much about AI & money every single article Raghav & Ashwin put out. Hands-down one of the best publications on Substack!”
Jessica Drapluk
Unstuck to Published
Recent issues
I Gave Claude My Notion Database and Built a Research Assistant That Actually Thinks.
Here’s the exact Skill file, every prompt template, and the debugging guide for the five things that will break.
Stop Building AI That Forgets
A framework for AI systems that get better over time, not just perform on demand.
Research Said Yes. Users Said No.
What a decade of fixing AI failures teaches you about building your own product — and what it doesn't.
Hand Claude Code a Clean Spec, Not a Hope: The Skill That Interviews Your Idea Like a Product Manager
Ship an app that works the way you imagined. Stress-test your build idea, capture intricacies your prompt skipped, and get engineering ready user stories pushed
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