InfoQ - AI Assisted Coding

Cursor Uses S3 WAL to Scale Git Storage to More than 300 Pushes per Second

Leela Kumili — Wed, 30 Sep 2026 13:47:00 GMT

Cursor has introduced Continuity, a Git storage architecture that uses an S3 backed write ahead log as the source of truth. The design turns local NVMe repositories into warm caches and separates replica coordination from consistency. Cursor reports linear read scaling with up to 100 replicas and more than 300 pushes per second with S3 Express One Zone in synthetic tests.

By Leela Kumili

Article: The Agent Harness: What it is and Two Ways to Build One

Trista Pan — Fri, 25 Sep 2026 09:00:00 GMT

This article explains the development and operational layers of an agent harness through two implementations of a finance assistant: AWS AgentCore Harness and LangChain with Envoy AI Gateway. It compares how each handles tools, memory, model access, cost control, and observability, and examines the trade-offs in operational ownership, portability, and engineering effort.

By Trista Pan

Presentation: The Agent Harness: Control Planes, Invariants, and Approval Boundaries for Production AI Agents

Vinoth Govindarajan — Mon, 21 Sep 2026 11:00:00 GMT

OpenAI’s Vinoth Govindarajan discusses why production AI agents fail beyond model hallucination. Using real-world case studies like OpenClaw, he explains the key principles of reliable agent harnesses: establishing explicit state ownership, serializing concurrent state mutations, scoping execution authority, and validating actions at the user-visible edge.

By Vinoth Govindarajan

Bun Rewrites 535K Lines of Zig into Rust in Four Months, Eliminates Numerous Memory Leaks

Bruno Couriol — Sun, 20 Sep 2026 19:51:00 GMT

Bun creator Jarred Sumner recently announced that Bun, the JavaScript/TypeScript runtime, bundler and package manager has been rewritten from Zig to Rust. The rewrite seeks to eliminate recurrent memory safety vulnerabilities via Rust’s borrow checker. The AI-assisted rewrite was released after 4 months of work instead of the estimated one year.

By Bruno Couriol