Agent skill · data analytics · davila7
root-cause-pareto
Build a decision-grade Pareto for downtime, defects, complaints or delays - with unit-of-measure discipline, category hygiene, exposure normalization and a follow-up metric. Use when the user mentions pareto analysis, kök neden, duruş analizi, downtime, arıza analizi, defect ranking, şikayet analizi, 80/20 analysis. Differentiator - treats the Pareto as the start of a causal investigation, not a bar chart deliverable.
Why this skill is useful
Provides a structured approach to Pareto analysis that includes unit-of-measure discipline and category hygiene, which the AI may not reliably generate on its own.
What it needs
About 2k tokens when loaded. Last updated 2026-08-06. 30,138 stars on the source repository.
What this skill does
Root-Cause Pareto A Pareto chart is easy; a Pareto that survives challenge in a management meeting is not. The difference is four disciplines applied before the chart exists. Workflow 1. Pick the unit of measure deliberately. Occurrences, minutes, or money - choose the one closest to the pain being managed and say why. Ranking breakdowns by count when one category costs 10x more minutes per event points the team at the wrong problem. When in doubt, show count and impact side by side. 2. Enforce category hygiene before counting: Categories must sit at one granularity level (no "Mechanical failure" next to "Sensor S-114 misaligned") "Other/Miscellaneous" must stay under ~15% of the total; if it is bigger, the categorization failed - split it before proceeding Merge synonyms and near-duplicates (free-text logs always contain them; list the merges made) 3. Normalize by exposure before comparing. Line A with 3 shifts will "lead" any raw ranking against Line B with 1 shift. Divide by machine-hours, orders, or units produced when comparing across lines, shifts, or periods - state the exposure base used. 4. Check stability. A Pareto from one bad week is an anecdote. Compare the ranking across at least two comparable periods; only categories that stay on top deserve investment. Note rank changes. 5. Rank, plot, and go one level deeper on the #1 category. Break the top category into its own sub-Pareto or apply 5-why prompts to its most frequent instances. The actionable cause is usually one level below the headline category. 6. Define the counter-metric. Before recommending an action, state which number should move, by roughly how much, and when to re-measure. A Pareto without a follow-up measurement is decoration. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills davila7/root-cause-pareto