IDEAS, DECISIONS & LESSONS
Notes on AI, architecture and building useful products.
878 articles
14 Sep 2026 · 4 min read
api-design
Daily English practice for tech professionals. Morning session covering API design and idempotency with pronunciation guide, exercises, and real-world examples.
Read more13 Sep 2026 · 5 min read
agentic coding
Claude Code v2.1.269 adds claude plugin eval — six grader types, a no-plugin baseline, and CI flags like --threshold and --max-cost-usd. A Tech Lead's walkthrough of what it fixes and how to wire it into a release gate.
Read more13 Sep 2026 · 5 min read
agentic coding
SWE-2 matches Fable 5.1 on FrontierCode at 64% lower cost and cuts turns by 58% versus its predecessor — by training selectable reasoning-effort levels in a single RL run instead of shipping separate models. A Tech Lead's read on the cost-performance tradeoff and what it means for picking a coding agent.
Read more13 Sep 2026 · 7 min read
ai
It's not about which model scores higher. It's about which one still gets the job done when you're not sitting next to it. Notes from a year of switching, paying, and betting real client work on Claude.
Read more13 Sep 2026 · 4 min read
english-lesson
Daily English practice for tech professionals. Morning session reviewing the top 5 words and idioms from this week (orchestrate, resilient, clarify, pivot, spontaneous) with pronunciation guide, exercises, and real-world examples.
Read more13 Sep 2026 · 9 min read
ci-cd
How a single Proxmox container builds, tests, deploys and serves KidsLen — private CI runners, a smoke-test gate, a Cloudflare Tunnel, and the honest cost.
Read more12 Sep 2026 · 4 min read
english-lesson
Daily English practice for tech professionals. Morning session covering casual plans, invitations, and flexible scheduling with pronunciation guide, exercises, and real-world examples.
Read more12 Sep 2026 · 5 min read
ai
Datasette 1.0a39 and 0.65.4, released September 11, 2026, fix permission bugs found through a week-long audit using Claude Fable 5.1, GPT-5.6 Sol, and GPT-6 Astra. A technical lead's breakdown of the two-person-plus-three-models workflow, and why it's a better template than 'just ask the AI to find bugs.'
Read more12 Sep 2026 · 5 min read
ai
Starting September 15, 2026, Cloudflare blocks Training and Agent crawlers by default on ad-monetized pages for every new domain. A technical lead's walkthrough of the Content Signals model, the Googlebot collateral-damage problem, and the opt-out checklist you need before the deadline.
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