IDEAS, DECISIONS & LESSONS
Notes on AI, architecture and building useful products.
905 articles
02 Sep 2026 · 5 min read
ai
Anthropic didn't touch Fable 5.1's per-token price — it cut cache-read cost by 75%. That's not a discount, it's a signal about which architecture pattern the platform now rewards. Here's how I re-cut my prompt structure around it.
Read more01 Sep 2026 · 6 min read
ai-agents
VS Code 1.135 shipped the Agent Host Protocol with an experimental /rubber-duck command — a second AI model critiquing your primary agent's plans and code in real time. Here's what it changes about how teams should structure AI-assisted review.
Read more01 Sep 2026 · 5 min read
ai-agents
Claude Sonnet 5's introductory pricing and GitHub Copilot Studio's promotional credits both expired on the same day. Here's the real math on what changed, why it happened simultaneously, and how to budget for the next one.
Read more01 Sep 2026 · 4 min read
ai-ml
Daily English practice for tech professionals. Morning session covering the words you need to talk about running and shrinking AI models in production — quantize, throughput, checkpoint, overfit, multimodal — with pronunciation guide and real-world exercises.
Read more31 Aug 2026 · 5 min read
ai
OpenAI is offering enterprises two free months of Codex and a one-click Claude Code importer to switch. Anthropic countered by raising Claude Code limits instead of building an exporter. A Tech Lead's honest read on what actually migrates cleanly — and what silently breaks.
Read more31 Aug 2026 · 4 min read
debugging
Daily English practice for tech professionals. Morning session covering debugging and testing vocabulary — breakpoint, stack trace, flaky test, edge case, root cause — with pronunciation guide, exercises, and real-world examples.
Read more31 Aug 2026 · 5 min read
ai
Alibaba's Qwen3.8-Flash-Next, an early preview of Qwen4's architecture, scores 62.5 on SWE-bench Pro against Claude Opus 4.6 Max's 53.4 — while activating just 6B of its 180B parameters. Here's what the routing architecture actually buys you, and where the benchmark story gets more complicated.
Read more30 Aug 2026 · 4 min read
cloudflare
On Aug 27, Cloudflare shipped five memory-layout optimizations to Big Pineapple, their DNS cache, cutting per-entry memory by 56% and freeing ~100TB fleet-wide. A Tech Lead's walkthrough of the actual techniques — struct packing, arena allocation, string interning — and where they pay off in ordinary backend services, not just DNS resolvers at Cloudflare scale.
Read more30 Aug 2026 · 4 min read
english-lesson
Daily English practice for tech professionals. Morning session reviewing the top 5 words and idioms from this week (rebase, hallucinate, decouple, facilitate, pivot) with pronunciation guide, exercises, and real-world examples.
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