IDEAS, DECISIONS & LESSONS
Notes on AI, architecture and building useful products.
878 articles
09 Sep 2026 · 5 min read
ai
HydraFusion picks a per-task execution plan across model providers — cascade, critique, or single-shot — and reportedly beats Claude Opus 5 quality on TerminalBench 2.1 at 36-67% lower cost. A Tech Lead's read on whether this replaces your model-routing logic or just moves it.
Read more09 Sep 2026 · 4 min read
architecture
Daily English practice for tech professionals. Morning session covering resilience and fault-tolerance vocabulary with pronunciation guide, exercises, and real-world examples.
Read more09 Sep 2026 · 5 min read
ai
Anthropic's Claude produced a 13M-line, fully machine-verified Lean proof of Fermat's Last Theorem in 11 days via the open-source Prove2Me orchestrator. A Tech Lead's read on what the multi-agent coordination pattern behind it means for any team building long-horizon autonomous agents.
Read more09 Sep 2026 · 9 min read
build in public
How the companion app connects a child's own accounts: injected scripts, a localStorage state machine, a message protocol to native, and hot-fixable capture code.
Read more08 Sep 2026 · 4 min read
ai-ml
Daily English practice for tech professionals. Morning session covering AI agent orchestration vocabulary with pronunciation guide, exercises, and real-world examples.
Read more07 Sep 2026 · 5 min read
ai
NVIDIA and Hugging Face published Open-SWE-Traces, SWE-Zero, and SWE-Hero — half a million open agent trajectories with tool calls, patches, and failure cases. A Tech Lead's guide to reusing this format for internal agent evals, not just model fine-tuning.
Read more07 Sep 2026 · 6 min read
ai-agents
A single Git performance setting, core.fsmonitor, lets a malicious repository run arbitrary code the moment an AI coding agent looks at it — before you've typed a prompt or clicked 'trust this folder.' A Tech Lead's breakdown of the exploit and the fix.
Read more07 Sep 2026 · 5 min read
ai
Nemotron 3 Ultra pairs Mamba state-space layers with transformer attention and a mixture-of-experts router to hit a 1M-token context at 5x the inference throughput of comparable dense models. A Tech Lead's read on the architecture and where it changes agent deployment math.
Read more07 Sep 2026 · 5 min read
adoption
OpenAI's internal per-researcher AI spend sat near zero through February 2026, then rocketed to roughly $600/day by late August — not from a mandate, but from a model that finally cleared the adoption bar. A Tech Lead's read on what the curve shape means for your own rollout.
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