# The Agentic Engineer

> Weekly newsletter on AI agents, cloud architecture, and the tools reshaping how we build software.

## Issues

- [#1 Mercury 2, Agentic IDEs & The Plumbing Era](https://theagenticengineer.waltsoft.net/archive/mercury-2-agentic-ides-plumbing-era): Diffusion models are coming for LLMs. The agentic IDE war is heating up. Hugging Face bets on open-source agents.
- [#2 Claude Code Is Picking Your Stack](https://theagenticengineer.waltsoft.net/archive/claude-code-picking-your-stack): Researchers analyzed 2,430 Claude Code responses and found it is quietly building a default tech stack.
- [#3 LangChain Just Open-Sourced a Claude Code Replacement](https://theagenticengineer.waltsoft.net/archive/langchain-open-sources-claude-code-replacement): LangChain releases Deep Agents, an MIT-licensed Claude Code alternative built on LangGraph.
- [#4 An Autonomous Agent Hacked McKinsey in 2 Hours](https://theagenticengineer.waltsoft.net/archive/autonomous-agent-hacked-mckinsey-in-2-hours): CodeWall's autonomous agent found SQL injection in McKinsey's Lilli AI platform, gaining read/write access to 46.5M messages.

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