What Peter Steinberger thinks about developer tools

@peter-steinberger · 58 positions · On ppll ↗

Founded PSPDFKit in 2011 and ran it for a decade. Came back from a break to work on AI agents — the OpenClaw project, and OpenAI, joined in February 2026. Writes at steipete.me.

Peter Steinberger did not write this page.

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1 dated position, 2026, in their own words. Our reading of what Peter Steinberger has said — not written or endorsed by them.

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1. 12 Feb 2026

   Our readingEvery tool is better as a CLI than as an MCP server: models are good at Unix commands, a CLI composes with jq, and MCP output clutters the context.

   MCP

   Their wordsI think the main beauty is, is that models are really good at calling Unix commands. So if you just add another CLI, that's just another Unix command in the end. And MCP is… That has to be added in training. That's not a very natural thing for the model. It requires a very specific syntax. And the biggest thing, it's not composable.

   ↗OpenClaw: The Viral AI Agent that Broke the Internet - Peter Steinberger | Lex Fridman Podcast #491youtube.com 19th of 30 in this recording