Cloudflare Workers

Gadgets: Personal app vibe coding that is actually safe — Kenton Varda, Cloudflare

Aug 5, 2026 · 18:54

Kenton Varda, creator of Cloudflare Workers, argues personal AI codegen breaks traditional cloud infrastructure and needs a different platform: his side project Gadgets, an office suite of user-vibecoded apps on Workers. Feature requests die in Jira; the plugin-rewrite trap stalls; Gadgets answers with per-instance apps where the platform, not the app, handles sharing, and a null-origin iframe talks over Cap'n Web RPC to a dynamic worker sandbox, so XSS doesn't matter. He shows Claude adding strikethrough, centering, and an SVG box to a slide builder to fulfill a deck request. It all runs locally on workerd, the open-source Workers runtime, no containers, no database, only durable objects. He apologizes that Cloudflare's CTO stopped him from open-sourcing it today; a careful release comes soon.

Make your own event-sourced agent harness using stream processors — Jonas Templestein, Iterate

May 14, 2026 · 1:04:27

Jonas Templestein and Misha from Iterate introduce an event-sourced agent harness built on stream processors, arguing that agents should be modeled as an append-only event log with a synchronous reducer for state and an after-append hook for side effects. They demonstrate how every action—streaming chunks, tool calls, errors—becomes an event, enabling full debuggability and replay without re-running LLM calls. The key innovation is a "dynamic worker configured" event whose payload is a JavaScript processor; appending it to any stream instantly turns that stream into an AI agent with no server or dependencies. This allows processors from different authors and languages to compose on the same stream, and a safety checker can inject context within 200ms without blocking the agent. The hosts emphasize eventual consistency over before-hooks, and show deployment via Cloudflare Workers or by simply subscribing from any HTTP client.