Building & Product
How founders use AI for AI Agents
The resources behind 15 questions founders actually ask, then the questions themselves, each with a straight answer.
On the AI map, 29 October 2026 Decision models Coding agents Agents that do tasks for you AI browsers No-code automation with AI steps
What founders use for ai agents, ranked by how many answers lean on it.
- Top use cases and blockers in one thread. x.com Thread State of AI Agents: we surveyed 1300+ professionals LangChain
- The full downloadable data if you want to cite it to your board. langchain.com Guide State of AI Agents Survey & Report LangChain
- Kills the 'wait for GPT-next' excuse; harness engineering is the work. venturebeat.com Article LangChain's CEO: better models alone won't get your agent to production VentureBeat (Harrison Chase)
- Stitches the three big failure studies into one narrative. medium.com Article MIT Says 95% Fail. McKinsey Explains Why. Agentic Engineering Shows the Fix. Yi Zhou
- Independent analysis of the adoption data, minus vendor spin. infoq.com Article New LangChain Report Reveals Growing Adoption of AI Agents InfoQ
- A blunt pre-mortem checklist to run before you start. medium.com Article Why Your AI Agent Pilot Will Join the 95% That Fail Ali El-Shayeb
- A founder who beat the failure rate explains what enterprise-grade actually took. podcasts.apple.com Podcast How Decagon Built Human-Level AI Support | Ashwin Sreenivas Startup Project (Ashwin Sreenivas)
- A useful antidote to demo-day expectations of agent competence. theconversation.com Article OpenAI's deep research agent is still just a fallible tool The Conversation
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Video
Simon Willison and swyx: The State of AI
Simon Willison & swyx
- Where agents genuinely are on the automation timeline, hype removed. lennysnewsletter.com Podcast An AI state of the union | Simon Willison Lenny's Podcast (Simon Willison)
- The canonical guide: curation beats clever prompting for agents. anthropic.com Guide Effective context engineering for AI agents Anthropic
- The write, select, compress, isolate framework every team now uses. langchain.com Article Context Engineering for Agents LangChain
- The post that coined the framing, with the LLM-as-CPU analogy. rlancemartin.github.io Article Context Engineering for Agents (original essay) Lance Martin
- An expert's teardown of how Manus applies the theory in production. rlancemartin.github.io Article Context Engineering in Manus Lance Martin
- The full conversation, including memory across sessions. latent.space Podcast Context Engineering for Agents | Lance Martin, LangChain Latent Space (Lance Martin)
- Same episode, playable on your commute. open.spotify.com Podcast Context Engineering for Agents (audio) Latent Space
- Advanced patterns once the basics stop being enough. philschmid.de Article Context Engineering for AI Agents: Part 2 Philipp Schmid (Google DeepMind)
- Why context, not model size, unlocks agents that work for hours. sequoiacap.com Podcast Context Engineering Long-Horizon Agents | Harrison Chase Sequoia Training Data (Harrison Chase)
- The implementation reference when you actually build it. docs.langchain.com Guide Context engineering in agents (docs) LangChain
- Explains why agents get dumber as conversations get longer, and what to do. inkeep.com Article Fighting Context Rot Inkeep
- The research evidence that performance degrades with input length. arxiv.org Article Diagnosing and Mitigating Context Rot in Long-horizon Search arXiv researchers
- Reverse-engineers how Claude's own products manage context. 01.me Article Claude's Context Engineering Secrets: Best Practices from Anthropic Bojie Li
- How a code-intelligence company feeds agents exactly the right slice of a codebase. sourcegraph.com Guide Context Engineering: A Practical Guide for AI Agents Sourcegraph
- Connects context engineering to harness design in three principles. hugobowne.substack.com Article AI Agent Harness, 3 Principles for Context Engineering, and the Bitter Lesson Revisited Hugo Bowne-Anderson
The questions
What actually is an AI agent, in plain language?
An AI agent is an AI model that works toward a goal by deciding its own steps and using tools, where a chatbot answers one message and waits for the next. An...
Why would a founder use agents instead of a chatbot or automation?
Chatbots answer questions and classic automation follows fixed if-this-then-that rules; both break the moment a task needs judgment. Agents sit in between: t...
What real tasks are founders delegating to agents today?
Founders are handing agents inbound sales and lead qualification, customer support, competitor and market research, meeting prep and follow-ups, content draf...
How do I build my first agent without being technical?
Start inside the assistant you already pay for, and reach for a builder only when the job has to run across several apps. On Claude Pro ($20 a month) you can...
Which platform or framework should I build my agents on?
Match the tool to who is building. Non-technical founders should start no-code (Zapier Agents, Lindy, n8n) and only graduate when they hit a wall. If you hav...
How much do AI agents cost to run, and how do I keep the bill under control?
Token prices for equivalent quality fall roughly 10x a year, yet agent bills keep rising because agents burn about 50 times the tokens of a chat: every step ...
How do I test an AI agent and know when it's reliable enough to trust?
You test agents with evals: a set of real tasks plus grading logic, run repeatedly because the same input can produce different outputs. Start embarrassingly...
What can go wrong when an agent acts on my behalf, and how do I keep it safe?
The core risk is Simon Willison's lethal trifecta: an agent that reads your private data, sees untrusted content (any email or web page) and can communicate ...
What is MCP, and why does it matter for my agents?
MCP (Model Context Protocol) is an open-source standard for connecting AI applications to outside tools and data, which its own documentation compares to a U...
Should I build one agent or a team of agents working together?
Start with one. The famous industry debate (Cognition's "Don't Build Multi-Agents" vs Anthropic's multi-agent research system) actually agrees on the fundame...
Can coding agents like Claude Code actually build my product?
Yes, further than most founders expect: teams like Every ship multiple products with engineers writing almost zero code by hand, and 80-90% of Claude Code it...
Is there a real startup opportunity in building vertical AI agents?
Yes, and it may be the biggest one of this cycle: YC's partners argue vertical AI agents could be 10x bigger than SaaS because they tap labor budgets, not so...
How should I price a product built on AI agents?
Per-seat pricing breaks when your product replaces labor instead of assisting it: agents don't have seats. The market is converging on usage and outcome pric...
Why do most AI agent projects fail, and what do the winners do differently?
MIT's much-cited finding is that 95% of enterprise AI pilots deliver no measurable ROI, and the cause is rarely the model: it's missing context, no workflow ...
How do I give my agent the right context and memory so it stops forgetting?
Agents fail less because the model is dumb and more because its context window is stuffed with the wrong things: performance measurably degrades as context g...
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