How much can it reduce test count?

Examples show reductions from thousands of exhaustive cases down to a few dozen while still covering all pairs.

Can I share the skill with teammates?

Yes, the repository supports git submodule, marketplace, or direct folder sharing methods.

What output does it produce?

It returns a PICT model file plus a table of test cases that include expected results derived from the rules.

omkamal/pypict-skill

Claude skill for efficient pairwise test design with PICT.

SkillsAgent Skills 84Open source

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Updated 2026-06-16

What is omkamal/pypict-skill?

PICT Test Designer is an open-source Claude skill that applies pairwise independent combinatorial testing to software validation tasks. It models inputs, values, and rules to produce minimal yet thorough test suites.

The skill parses natural-language requirements into PICT model files, enforces constraints to drop invalid combinations, and returns ready-to-run cases with predicted outcomes. It supports domains from API endpoints to configuration matrices.

Intended for QA engineers, developers, and test architects who need high coverage without the explosion of exhaustive testing in multi-parameter systems.

Capabilities

generate pairwise test cases

apply constraints to models

automate test design

produce expected outputs

support multiple domains

What you can build with omkamal/pypict-skill

Web form validation

Model field combinations and browser settings to generate compact test sets that still hit every pairwise interaction.

API parameter testing

Define endpoint parameters and constraints so the skill produces a small number of calls that cover critical value pairs.

Configuration matrix checks

Handle software settings across OS versions, hardware options, and feature flags while keeping the test count low.

Install omkamal/pypict-skill

Quick start

# Add the marketplace
/plugin marketplace add omkamal/pypict-claude-skill

# Install the plugin
/plugin install pict-test-designer@pypict-claude-skill

1Add the marketplace with /plugin marketplace add omkamal/pypict-claude-skill.
2Install via /plugin install pict-test-designer@pypict-claude-skill.
3Alternatively clone the repo into ~/.claude/skills/pict-test-designer and restart Claude Code.
4Describe your parameters and rules in a new conversation to start modeling.
5Review the generated PICT model and resulting test cases with expected outputs.

Works with

Claude Code CLIClaude Code DesktopPython