pareto-analysis

pareto-analysis is a skill for Claude Code from tupe12334/instinct. It costs 34 tokens per session (2,781 once invoked), scanned A, original, MIT.

A method for finding the small number of causes responsible for most of an outcome, often described as the 80/20 rule. It ranks causes by their contribution and separates the most important ones from the rest.

In plain words
What is it for?
Use it to rank bug types, costs, customer groups, product sales, or other measurable causes and decide where to concentrate effort.
Why use it?
It helps focus limited time on the issues, customers, costs, or failures that matter most instead of treating every item equally.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the instinct plugin — 54 skills, 1 hook shipped together

Good fit Use it to rank bug types, costs, customer groups, product sales, or other measurable causes and decide where to concentrate effort.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tupe12334/instinct/pareto-analysis
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add tupe12334/instinct --skill pareto-analysis
Clone the repo
git clone --depth 1 https://github.com/tupe12334/instinct

Made for: Claude Code.

Or install instinct, the plugin that ships this one along with the rest of its 54 skills, 1 hook.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for pareto-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/tupe12334/instinct/pareto-analysis.svg)](https://agentmods.dev/skills/tupe12334/instinct/pareto-analysis)
Your own site
<a href="https://agentmods.dev/skills/tupe12334/instinct/pareto-analysis"><img src="https://agentmods.dev/badge/skills/tupe12334/instinct/pareto-analysis.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,781 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00034 $0.02781
Opus 5 $0.00017 $0.01391
Sonnet 5 $0.00007 $0.00556
Haiku 4.5 $0.00003 $0.00278

Measured 7d ago against content hash d5d40be8b8db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

pareto-analysis scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/pareto-analysis/SKILL.md · 155 lines

How it starts

The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pareto Analysis

Overview

The Pareto Principle — named after economist Vilfredo Pareto — observes that roughly 80% of effects come from 20% of causes. Pareto Analysis turns this observation into a structured method: quantify contributions, rank them, identify the vital few, and concentrate effort there rather than spreading it thin across the trivial many.

Cumulative %
of effect
  100% |                              ···············
   80% |·············                ·
       |             ·              ·
       |              ·            ·
       |               ·          ·
       |                ··      ··
    0% +──────────────────────────────────────────▶
        20%          50%        80%        100%
                   % of causes

        ◀── vital few ──▶◀────── trivial many ──────▶

The inflection point — where the cumulative curve bends — marks the boundary between your vital few and the rest.

Core Concepts

Causes vs. Effects

A cause is any discrete category: a customer segment, a bug type, a product SKU, a failure mode, a cost center. An effect is the measurable outcome attributed to each cause: revenue, defect count, churn rate, cost. You must pick one effect metric before starting — mixing metrics distorts the ranking.

Cumulative Frequency

Each cause's contribution is expressed as a percentage of the total effect, then accumulated in descending order. The cumulative column reveals the crossover point — the fewest causes that explain the most effect.

Vital Few vs. Trivial Many

The vital few are the top causes that together account for ~80% of the effect. The trivial many account for the remaining ~20% but are far more numerous. Effort belongs on the vital few; the trivial many rarely justify proportional investment.

The 80/20 Ratio Is a Guideline

The real split may be 70/30 or 90/10. Do not force the data to hit 80%. Look for the natural inflection in the cumulative curve — that is your signal, not the number 80.

Read the full file on GitHub · 155 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 155 lines · 34 tokens per session scan A d5d40be8b8db

Subscribe to this mod's changes

pareto-analysis is a skill published in the GitHub repository tupe12334/instinct (1 stars, last pushed 21d ago), licensed MIT. It adds 34 tokens to every session and 2,781 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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