Meta Open-Sources Astryx — Agent-Ready React Design System, 150+ Components, MCP CLI Support
Meta open-sources Astryx—its internal React design system with 150+ components and an MCP CLI designed for AI coding agents and human developers alike.
How-Tos
525 piecesOneCLI v1.42.0 — Open-Source Credential Gateway Keeps Secrets Out of AI Agents
OneCLI v1.42.0 ships a Rust-based HTTPS proxy that keeps real secrets out of AI agent context—inject credentials at runtime, never at rest in prompts or logs.
Why Software Factories Fail — Advanced Context Engineering for Coding Agents
HumanLayer's Dex Horthy explains why AI software factories fail and how context engineering—structured artifacts and staged workflows—fixes the gap harness engineering misses.
Getting Started with Microsoft Agent Framework Harness
A conceptual guide to Microsoft Agent Framework Harness: what it does, how to think about it, and where to go to build your first autonomous agent.
How to Configure Claude Code v2.1.217 Subagent Concurrency, Nesting Depth, and Budget Limits
Claude Code v2.1.217 caps concurrent subagents at 20 by default and disables nesting — here's what changes and how to reconfigure.
Getting Started with Plasma AI Fractal: Hierarchical Recursive Multi-Agent Systems
Plasma AI open-sources Fractal — a hierarchical recursive multi-agent framework that debugged its own codebase with a 187-node agent tree.
The Operational Risk of AI Coding Agents in B2B SaaS — And What to Do About It
Jim Grey warns that AI coding agents' real risk in B2B SaaS isn't hallucinations — it's plausible-but-wrong changes that pass review silently.
Claude Mythos Preview Retires July 21 — Migrate to Claude Mythos 5 Today
Anthropic retires claude-mythos-preview today — developers using the April 2026 gated research model must migrate to Claude Mythos 5 immediately.
Cursor: Agent Swarms and the New Model Economics
Cursor's engineering blog reveals planner-worker agent swarm architecture cutting SQLite benchmark costs from $10K to $1.3K via model tiering.
Haystack 3.0 Launches with Agentic-First Architecture
deepset's Haystack 3.0 launches with agent-first architecture, lifecycle hooks, and built-in observability — direct challenger to LangGraph and CrewAI.