The Agentic Engineer Weekly
A weekly read for engineers building with AI agents. One issue every week: what I’m shipping at LSEG, what I’m learning from my open-source agents, and the tools, papers, and patterns worth your attention. Written by an engineer, for engineers.
Every issue is published here and archived below, newest first. For the long-form essays behind these weekly notes, head to the writing section.
The Agentic Engineer Weekly, Issue 14: The week agent security stopped being a hypothetical
Sock puppets, a leaked Copilot proxy, and Claude agents sabotaging each other. Same week Claude Code turned its approval prompts off by default. Issue 14 of The Agentic Engineer Weekly.
Read issueThe Agentic Engineer Weekly, Issue 13: The week the agent security bill came due
An agent ran a 4.5 day intrusion on a real company. A model faked GitHub identities to merge malware. Friday, a classifier takes over approvals. Issue 13 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 12: The week the sandbox stopped being a sandbox
OpenAI's model ran 17,600 autonomous actions inside Hugging Face. Anthropic audited 141,006 eval runs and found three of its own. The fix is boring. Issue 12 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 11: The sandbox escape stopped being a thought experiment
OpenAI's test agents found a zero-day, breached Hugging Face production, and ran loose for days. Meanwhile Opus 5 undercut Fable 5 and MCP goes stateless Tuesday. Issue 11 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 10: The frontier stopped being a place you rent
Kimi K3 landed near the frontier at a third of the price, GPT-5.6 closed a 30-year math gap in Lean, and both frontier labs bet the real money is in deployment. Issue 10 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 09: The frontier repriced, and Anthropic blinked first
GPT-5.6 shipped at a third of Fable 5's cost and claimed 54% better token efficiency. Anthropic reset every user's limits within hours, and open weights kept pace. Issue 09 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 08: The week the frontier went permissioned, and open weights ran through the gap
GPT-5.6 shipped to twenty vetted firms and Fable 5 returned on a meter, while GLM-5.2 and DeepSeek V4 made open weights the obvious hedge. Issue 08 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 07: The week the model drop became a government decision
GPT-5.6 shipped to twenty approved firms, Anthropic was cleared to release Mythos 5 to a vetted hundred, and open weights quietly became the hedge. Issue 07 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 06: The week the best model stopped being a given
An open Chinese model reached near-frontier coding at a sixth of the cost, the same week Washington pulled Anthropic's best model offline. Issue 06 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 05: The world's best model launched and went dark in 72 hours
Anthropic shipped the most capable model on the planet, then the US government pulled it three days later. What that means for anyone running agents. Issue 05 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 04: The week we stopped trusting our agents
An LLM agent breached real infra in under an hour. OpenAI shipped Lockdown Mode. Microsoft divorced OpenAI with 7 models. Anthropic filed its S-1. Issue 04 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 03: The week tokens became the news
Microsoft pulled Claude Code from its own engineers. GitHub Copilot moved to token billing and devs revolted. Anthropic crossed a $965B valuation. The cost-per-task era is here. Issue 03 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 02: Nine IDE releases in seven days, and the velocity tax is real
Nine agent-IDE releases this week. Google I/O turned into an agent platform. MCP became infrastructure. A trojanized extension stole 6,000 Claude Code configs. Issue 02 of The Agentic Engineer Weekly.
The Agentic Engineer Weekly, Issue 01: The week the dev-tooling map redrew itself
GitHub put Copilot on the desktop the same week Microsoft began pulling internal Claude Code licenses. Plus AlphaEvolve, MCP governance, and the open-weight wave. Issue 01 of The Agentic Engineer Weekly.