Microsoft Word

How Anthropic Builds: Lessons from Labs — Mike Krieger, Anthropic

Aug 27, 2026 · 26:11

Instagram co-founder Mike Krieger, now an individual contributor at Anthropic's Labs, argues for being 'unreasonable' with Claude—he had it port a few hundred thousand lines of Python to TypeScript over a weekend. He attributes timid asks to first-gen AI's boxed tools; cites Instagram-era habits (pre-measure everything, knobs); and explains tagging Claude in Slack as multiplayer delegation. Labs runs two-week 'persevere or pivot' reviews, bet leads manage nobody, and code review is bottlenecked by comprehension, so 2,000-line PRs travel with artifacts explaining intent and tradeoffs. He also sketches Claude Design's future, urges unship of product complexity, and advises startups to bet on verticals like finance. On burnout: no job is so important you cannot be offline for two days.

What the Best Agents Share — Mardu Swanepoel, Flinn AI

May 26, 2026 · 10:21

Mardu Swanepoel of Flinn AI identifies four patterns shared by top agents like Cursor, Claude, Manus, and Harvey: focus modes, transparent execution, personalization, and reversibility. Focus modes constrain the action space to improve output quality and align user expectations, as Cursor does with planning and debug modes. Transparent execution shows tool calls and reasoning to build trust and enable early intervention, exemplified by Claude's live task list and Manus's progress tracking. Personalization optimizes speed to understanding through playbooks (Harvey) and memory, so agents follow firm-specific methods. Reversibility bounds downside with rollbacks at line, file, or conversation levels (Cursor) and integration with native undo in Harvey's Word add-in, encouraging users to tackle higher-value tasks.