dependency-analysis
When you're not sure what depends on what — builds dependency graphs, detects cycles, audits for staleness and CVEs.
20-planning — Planning
4 skills in this category.
estimation
When "how long will this take?" needs a real answer — PERT estimation, relative sizing, confidence intervals.
risk-assessment
Before you ship something that keeps you up at night — identifies risks, scores probability/impact, plans mitigations.
task-decomposition
When a task feels too big to start — breaks it into dependency-ordered subtasks with T-shirt sizing.