January 2026

IndyDevDan

The Claude Code Feature Senior Engineers KEEP MISSING

Claude's latest Code feature allows engineers to build hooks into their prompts, sub-agents, and skills, enabling specialized self-validating agents that automatically check their own work. This...

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Simon Willison's Weblog

Scaling long-running autonomous coding

Cursor successfully ran hundreds of autonomous AI coding agents for a week to build a functional web browser from scratch, generating over 1 million lines of code. This demonstrates AI agents can now...

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Simon Willison's Weblog

FLUX.2-klein-4B Pure C Implementation

Black Forest Labs released FLUX.2-klein-4B, an Apache 2.0 licensed 4B parameter text-to-image model. Salvatore Sanfilippo created a pure C implementation that runs without dependencies, demonstrating...

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Universe of AI

Claude Cowork: The AI Agent for Everyday Work! Plus LEAKED Features

Anthropic is fundamentally shifting Claude from a chat-first product to a productivity-focused system through Claude Cowork, which gives the AI direct file access and autonomous task execution...

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Simon Willison's Weblog

Quoting Jeremy Daer

Jeremy Daer from 37signals explains why AI agents should use CLI tools instead of REST APIs. CLI interfaces enable cheaper, faster models to handle complex tasks that would otherwise require...

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