This week in the notebook
Can I still board the old Cursor? IDE ➕Coding ➕Reading is something I've been thinking about for a long time. CC, Codex made me ten times more efficient and produced a lot...
Harness Engineering
The operating layer around models: context policy, constraints, evals, memory, approval boundaries, and cleanup loops.
Long-Running Agents
Delegation, orchestration, recovery, and what breaks when multi-step intelligence is treated as magic.
AI-Native Workbenches
Composable skills, local workflows, agent utilities, and the product surfaces that make AI work repeatable.
Retrieval / Skill-RAG
Persistence, compression, retrieval, and the editorial judgment behind what a system should keep.
What really limits the Agent is the same model of Harness. If you change the set of Har...
What really limits the Agent is the same model of Harness. If you change the set of Harness, the range of tasks that can be completed may be completely different. This 5…
Tibo came to deliver welfare again. This time, he sent charcoal in the real snow, and the quota was almost at
Tibo came to deliver welfare again. This time, he sent charcoal in the real snow, and the quota was almost at the bottom. After four days, it was really like every three…
ok, let me announce the video I just completed to promote fireworks-tech-graph. Both styles were completed by
ok, let me announce the video I just completed to promote fireworks-tech-graph. Both styles were completed by K3, and both are one-sentence prompts. The first one is mad…
Standing thesis
The next AI engineering frontier is the harness around the model. Read the argument