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Every resource founders actually use, in one library.

The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.

What founders use most, ranked by how many answers lean on it.

  1. Actionable moves for capturing data your competitors structurally cannot get. thestrategystack.substack.com Article · How Founders Use AI How to Build a Proprietary Data Moat in AI (7 Practical Moves) The Strategy Stack
  2. A crisp synthesis of the Gil and Tavel schools applied to today's AI stack. ntkris.substack.com Article · How Founders Use AI Defensibility in AI Krishna's Newsletter
  3. The contrarian 2026 update: distribution, not technology, decides who wins. forbes.com Article · How Founders Use AI Every Company Is Now An AI Wrapper So GTM Is The New Moat Josipa Majic (Forbes)
  4. A taxonomy of AI-era moats with named startup examples for each. eoncodes.substack.com Article · How Founders Use AI The Startup Moats Defining the AI Era Andre J (Substack)
  5. How systems design makes usage data inseparable from the product, the subtlest moat. latitudemedia.com Article · How Founders Use AI In the age of AI, can startups still build a moat? Latitude Media
  6. Practitioners on building with LLMs without getting outmaneuvered by the labs. oreilly.com Article · How Founders Use AI What We Learned from a Year of Building with LLMs (Part III): Strategy Eugene Yan, Hamel Husain, et al.
  7. The manifesto that successful agents are mostly well-engineered software with LLM sprinkled at key points. github.com Guide · How Founders Use AI 12-Factor Agents: principles for production LLM software Dex Horthy (HumanLayer)
  8. A working engineer's decision criteria with cost and reliability tradeoffs spelled out. towardsdatascience.com Article · How Founders Use AI A Developer's Guide to Building Scalable AI: Workflows vs Agents Towards Data Science
  9. Short and sharp: if the steps are known in advance, a workflow wins on every axis. redis.io Article · How Founders Use AI AI Agents vs Workflows: When to Use Each Redis
  10. A neutral reference explainer to align your team on terminology before the build debate. promptingguide.ai Guide · How Founders Use AI AI Workflows vs AI Agents Prompt Engineering Guide (DAIR.AI)
  11. How a regulated enterprise makes the call, useful discipline for any founder. medium.com Article · How Founders Use AI AI agents vs. predefined workflows: practical decision guide Capital One Tech
  12. Brings the production data: only 23% of orgs have scaled an agent anywhere. intuitionlabs.ai Article · How Founders Use AI AI Agents vs. AI Workflows: Why Pipelines Dominate IntuitionLabs
  13. The founder-flavoured argument against reaching for the harder, smarter-sounding option. buildmvpfast.com Article · How Founders Use AI AI Workflows vs Agents: Why Workflows Win BuildMVPFast
  14. The next interaction pattern: agents that act on events, with humans approving at checkpoints. inferencebysequoia.substack.com Article · How Founders Use AI Ambient Agents and the New Agent Inbox Sequoia Capital
  15. The developer-facing detail on what is stored, for how long, and how to reduce it. developers.openai.com Guide · How Founders Use AI Data controls in the OpenAI platform OpenAI
  16. The policy to quote when a customer asks whether their data trains the model. openai.com Guide · How Founders Use AI How your data is used to improve model performance OpenAI
  17. Anthropic's own account of what its API keeps: your prompts and Claude's outputs are not retained by default, with zero data... platform.claude.com Guide · How Founders Use AI API and data retention (Claude docs) Anthropic
  18. Where to pull compliance artifacts when an enterprise customer sends a security questionnaire. anthropic.com Guide · How Founders Use AI Anthropic's Transparency Hub Anthropic
  19. The ten security risks unique to LLM apps, with prompt injection at number one. aembit.io Article · How Founders Use AI OWASP Top 10 for LLM Applications, explained Aembit
  20. Concrete examples of each attack and the layered defences OWASP recommends. oligo.security Guide · How Founders Use AI OWASP Top 10 LLM: Examples and Mitigation Strategies Oligo Security
  21. A practitioner's walkthrough of how injections actually happen in RAG and agent apps. paulmduvall.com Article · How Founders Use AI Deep Dive into OWASP LLM Top 10 and Prompt Injection Paul Duvall
  22. One of India's top tech law firms translating DPDP obligations for AI builders specifically. ikigailaw.com Guide · How Founders Use AI DPDP Handbook for AI Developers Ikigai Law (India)
  23. The 2025 final rules applied to AI products, including the significant data fiduciary trap. protecto.ai Article · How Founders Use AI How To Comply With Final DPDP Rules For Agentic AI Protecto
  24. A global law firm's view for founders serving both Indian and international customers. reedsmith.com Article · How Founders Use AI India in focus: Data protection and AI in India Reed Smith

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The hubs

Starting Up Find an idea, validate it, build, and land your first customers. 1046 questions GTM Go-to-market, from breaking in to how the best teams do it. 352 questions D2C Building a direct-to-consumer brand, India-first. 482 questions Wealth Paying yourself, ESOPs, secondaries, and de-risking founder wealth. 154 questions How Founders Use AI How founders actually put AI to work, mapped topic by topic. 278 questions Glossary Plain-language definitions of the startup and VC terms you'll hit. 390 terms
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