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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. A concrete path from pilot purgatory to production. dataiku.com Article · How Founders Use AI MIT Says 95% of GenAI Pilots Fail: How to Beat the Odds Dataiku
  2. Pattern-matches the survivors: workflow integration and adaptability. multimodal.dev Article · How Founders Use AI Why AI Pilots Fail and How to Succeed Like the 5% Multimodal
  3. 1,340 practitioners on what blocks agents: quality first, latency second. langchain.com Article · How Founders Use AI State of Agent Engineering LangChain
  4. The baseline survey to compare how fast the field is maturing. langchain.com Article · How Founders Use AI LangChain State of AI Agents Report LangChain
  5. Top use cases and blockers in one thread. x.com Thread · How Founders Use AI State of AI Agents: we surveyed 1300+ professionals LangChain
  6. The full downloadable data if you want to cite it to your board. langchain.com Guide · How Founders Use AI State of AI Agents Survey & Report LangChain
  7. Stitches the three big failure studies into one narrative. medium.com Article · How Founders Use AI MIT Says 95% Fail. McKinsey Explains Why. Agentic Engineering Shows the Fix. Yi Zhou
  8. Independent analysis of the adoption data, minus vendor spin. infoq.com Article · How Founders Use AI New LangChain Report Reveals Growing Adoption of AI Agents InfoQ
  9. A blunt pre-mortem checklist to run before you start. medium.com Article · How Founders Use AI Why Your AI Agent Pilot Will Join the 95% That Fail Ali El-Shayeb
  10. A useful antidote to demo-day expectations of agent competence. theconversation.com Article · How Founders Use AI OpenAI's deep research agent is still just a fallible tool The Conversation
  11. The post that coined the framing, with the LLM-as-CPU analogy. rlancemartin.github.io Article · How Founders Use AI Context Engineering for Agents (original essay) Lance Martin
  12. An expert's teardown of how Manus applies the theory in production. rlancemartin.github.io Article · How Founders Use AI Context Engineering in Manus Lance Martin
  13. Advanced patterns once the basics stop being enough. philschmid.de Article · How Founders Use AI Context Engineering for AI Agents: Part 2 Philipp Schmid (Google DeepMind)
  14. The implementation reference when you actually build it. docs.langchain.com Guide · How Founders Use AI Context engineering in agents (docs) LangChain
  15. Explains why agents get dumber as conversations get longer, and what to do. inkeep.com Article · How Founders Use AI Fighting Context Rot Inkeep
  16. The research evidence that performance degrades with input length. arxiv.org Article · How Founders Use AI Diagnosing and Mitigating Context Rot in Long-horizon Search arXiv researchers
  17. Reverse-engineers how Claude's own products manage context. 01.me Article · How Founders Use AI Claude's Context Engineering Secrets: Best Practices from Anthropic Bojie Li
  18. How a code-intelligence company feeds agents exactly the right slice of a codebase. sourcegraph.com Guide · How Founders Use AI Context Engineering: A Practical Guide for AI Agents Sourcegraph
  19. Connects context engineering to harness design in three principles. hugobowne.substack.com Article · How Founders Use AI AI Agent Harness, 3 Principles for Context Engineering, and the Bitter Lesson Revisited Hugo Bowne-Anderson
  20. Notes from the two leading teams comparing approaches live. medium.com Article · How Founders Use AI Inside the LangChain x Manus Webinar on Context Engineering Duarte Caldas Cardoso
  21. Where memory and context management are heading next. eu.36kr.com Article · How Founders Use AI Harrison Chase: 2026 ushers in long-horizon agents 36Kr (Harrison Chase interview)
  22. Turns scattered AI experiments into a repeatable prototyping workflow, with template prompts included. lennysnewsletter.com Guide · How Founders Use AI How to get your entire team prototyping with AI Colin Matthews (Lenny's Newsletter)
  23. A serious operator's framework for where AI prototypes fit in the build-measure-learn loop. reforge.com Article · How Founders Use AI How to implement AI prototyping in your product development cycle Reforge
  24. Names the exact bottleneck this question is about and shows how solo founders route around it. venturebeat.com Article · How Founders Use AI The design bottleneck for solo founders? AI has solved it VentureBeat

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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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