prompt engineering 2 readings

#prompt engineering

Articles and guides about prompt engineering by Florian Bruniaux.

2/2 · Claude selected my output style. Then ignored it

Claude Code selected flow-lean but skipped its footer. A casing fix showed why installation, selection, and behavior need separate evidence.

Sep 10, 2026 · 19 min read

1/2 · Why I combined three Claude Code skills

Article

Flow Lean fused three response skills. Its historical eval beat each comparator and caught a candidate offering a migration against an inferred target.

Sep 9, 2026 · 14 min read