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Top 5 · 2026-02-28 · source-backed
The most detailed, practical "how I actually use agents" guide published this month. Woolf documents building six Rust projects: UMAP 2-10x faster than existing implementations, HDBSCAN 23-100x faster, GBDT 24-42x faster. His breakthrough: AGENTS.md files in project roots with style preferences, tool selections, and performance constraints. Multi-model optimization: Codex for raw implementation, then Opus for polish, yielding cumulative 6x improvements. What to do: Create an AGENTS.md file in your project roots today. Write prompts as versioned markdown files. Try the two-model optimization pass pattern. (minimaxir.com, Simon Willison)
Each link below shares sources, entities, or timing with this story.
Shared entities / Same source / Shared topic / Earlier coverage
Both cover GBDT, HDBSCAN, Max Woolf, Opus; cite the same source (minimaxir.com, Simon Willison); overlapping topics (agent, codex, coding, faster, woolf).
Simon Willison uses Claude Code / Shared entities / Same source domain / Shared topic / What happened next
Linked by a graph relationship (Simon Willison uses Claude Code); both cover Codex, Rust, Simon Willison; reported by the same outlet (simonwillison.net).
Simon Willison uses OpenAI Codex / Shared entities / Same source / Shared topic / What happened next
Linked by a graph relationship (Simon Willison uses OpenAI Codex); both cover Max Woolf, Rust, UMAP, Woolf; cite the same source (minimaxir.com).
Simon Willison uses Claude Code / Shared entities / Same source domain / Shared topic / What happened next
Linked by a graph relationship (Simon Willison uses Claude Code); both cover Codex, Opus, Simon Willison; reported by the same outlet (simonwillison.net).
Shared entities / Same source / Shared topic
Both cover Codex, GBDT, HDBSCAN, Max Woolf; cite the same source (minimaxir.com); overlapping topics (agent, codex, coding, faster).
OpenAI released Codex / Shared entities / Same source domain / What happened next / Tension
Linked by a graph relationship (OpenAI released Codex); both cover Codex, Opus, Simon Willison; reported by the same outlet (simonwillison.net).
Simon Willison uses Claude Code / Shared entities / Same source domain / Shared topic / What happened next
Linked by a graph relationship (Simon Willison uses Claude Code); both cover Codex, Simon Willison; reported by the same outlet (simonwillison.net).
Simon Willison uses Claude Code / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Simon Willison uses Claude Code); both cover Codex, Rust; reported by the same outlet (simonwillison.net).