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Meet The DevTool Founders Building For AI Agents

In this episode of Founder FAQ, we asked a dozen DevTool founders from companies like Greptile, Firecrawl, Recall.ai, about the state of AI agents and the future of software engineering. We covered everything from agents as customers and the end of coding, to advice for founders starting out and what they're most excited about going forward. Their answers might surprise you. Chapters: 00:00 – Meet the Founders 03:00 – Building for Agents First 04:22 – Biggest Early Mistakes 07:15 – Do Founders Still Write Code? 09:22 – Most Unexpected AI Discoveries 12:09 – What's Underrated Right Now 14:38 – Predictions & What's Next Apply to Y Combinator: https://www.ycombinator.com/apply Work at a startup: https://www.ycombinator.com/jobs Thanks to the following startups for participating: Infisical (W23) Ollama (W21) Resend (W23) Recall.ai (W20) Greptile (W24) Firecrawl (S22) Porter (S20) Mintlify (W22) Unsloth (S24) RevenueCat (S18)[2:18 PM]

May 13, 202620mWatch on YouTube ↗

At a glance

WHAT IT’S REALLY ABOUT

Devtool founders rethink products for AI agents as primary users

  1. Multiple devtool founders describe a rapid shift from “developer-first” to “agent-first” product decisions, including CLIs, exportable data, and interfaces optimized for autonomous tool use.
  2. They report engineering throughput jumping via parallelized agent-driven development, with humans moving toward review, verification, and higher-level direction rather than writing most code.
  3. Early mistakes centered on misunderstanding developer experience (over-indexing on UI polish), drifting from developer-centric clarity (pricing, directness), and failing to delete product cruft fast enough.
  4. Unexpected discoveries include agents acting as a new distribution channel (models recommending products), agents providing strong product-planning critiques when given broad context, and highly effective custom security/vulnerability agents.
  5. The group predicts continued volatility: tool choice won’t be winner-take-all, non-engineers will increasingly ship code through agents, and competitive advantage will hinge on context, strategy, and being “chosen by agents.”

IDEAS WORTH REMEMBERING

5 ideas

Treat agent experience as a first-class interface.

Several founders say they’d redesign earlier for agent accessibility: robust CLIs, agent-friendly “skills,” and data that’s easy to export/use in tools like Claude Code. The product must be operable by an LLM reliably, not just navigable by a human.

Documentation should be written for context windows, not web pages.

One team rebuilt docs to fit cleanly inside an agent’s context window, improving integration accuracy and reducing mistakes. Agent-optimized docs prioritize compactness, unambiguous steps, and minimal cross-page wandering.

Humans are shifting from coding to verification and taste.

Founders report 80–90% of code being produced by agents, with humans reviewing PRs, setting direction, and ensuring correctness. The limiting factor becomes re-review, testing, and trust/verification rather than typing speed.

Parallelization is the new productivity lever—and it stresses your process.

Teams report going from shipping one feature at a time to many in parallel, but note the bottleneck moves to QA, code review, and deployment safety. Tooling that improves verification (tests, sandboxes, automated review) becomes strategic.

Don’t confuse “developer experience” with “pretty UI.”

A recurring lesson is that DX is speed-to-aha, clarity, and low-friction integration—not merely polished design. Clear pricing, direct workflows, and fast time-to-value are framed as universally good UX.

WORDS WORTH SAVING

5 quotes

Code doesn't matter anymore. What's gonna matter and what's left is context, is understanding problems deeply, building relationships with customers.

Unknown

I would be 100 times more ambitious. The capabilities that models give you today make the impossible possible, and not only that, they make it table stakes. All of a sudden, because the bar has been raised, you have to do whatever you can to get there.

Unknown

No, I don't write code. I write prompts for humans and agents.

Unknown

We're on a path to full autonomy, and people struggle with that. They, they lean away from it 'cause it forces them to ask questions about their identity, w-what it means to do work, what it means to be human. But once you accept that truth, you can adapt to that future.

Unknown

People want better software, more reliable, faster, covering more features, and the AI agents have taken so much toil out of building software, uh, that now we can get a lot better stuff out a lot faster, a lot higher quality. It's going to make, uh, engineers more valuable, not less valuable.

Unknown

Agent-first product interfaces (CLI, skills, context-window docs)Agents as customers vs developers as users/distributionParallel feature development and verification bottlenecksFounder coding roles shifting to prompting, reviewing, and toolingDeveloper experience fundamentals: speed-to-aha, clarity, pricingOpen models and local AI assistants (hardware-driven shift)Agents as distribution and autonomous purchasing/operations

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