How experts think — the open, MIT-licensed collection of SOUL.md files: structured portraits of how experts in every field reason, decide, and work. Human- and AI-readable.
soul-atlas/soul-atlas.github.io
Skill Claude CodeCodex
Dial in an espresso shot by steering the dose–yield–time triangle from taste. Use when an espresso tastes sour, bitter, or hollow, when switching beans or roast, or when a shot runs too fast or too slow and you need a concrete grind/dose/yield adjustment.
soul-atlas/soul-atlas.github.io
Skill Claude CodeCodex
Profile a CSV or tabular file before analysis — row and column counts, inferred types, missing-value rates, cardinality, and basic numeric stats. Use when handed an unfamiliar dataset and you need to understand its shape, spot data-quality problems, and decide what to clean before drawing any conclusions.
soul-atlas/soul-atlas.github.io
Skill Claude CodeCodex
Review a code change (a diff, pull request, or commit) for correctness, risk, and clarity before it merges. Use when asked to review a diff or PR, when deciding whether a change is safe to ship, or when you need to turn a raw diff into concrete, prioritized review feedback.