From billy-milligan
Test strategy patterns — TDD, BDD, testing pyramid, coverage strategy, test prioritization, test data management, factories, fixtures, mutation testing. Use when defining quality approach, planning test suites, setting coverage targets, structuring test layers, or establishing team testing standards for any project type.
npx claudepluginhub rnavarych/alpha-engineer --plugin billy-milliganThis skill is limited to using the following tools:
- Starting a new project or module and need to define testing approach
Compares coding agents like Claude Code and Aider on custom YAML-defined codebase tasks using git worktrees, measuring pass rate, cost, time, and consistency.
Designs and optimizes AI agent action spaces, tool definitions, observation formats, error recovery, and context for higher task completion rates.
Designs, implements, and audits WCAG 2.2 AA accessible UIs for Web (ARIA/HTML5), iOS (SwiftUI traits), and Android (Compose semantics). Audits code for compliance gaps.
references/testing-pyramid.md — unit/integration/e2e ratios, layer definitions, anti-patternsreferences/test-selection.md — when to write which test type, cost per level, skip decisions, ROI by scenarioreferences/tdd-bdd-patterns.md — red-green-refactor cycle, naming conventions, describe groupingreferences/bdd-gherkin.md — Given-When-Then, Gherkin feature files, Cucumber integration, Scenario Outlinereferences/coverage-strategy.md — coverage metrics, thresholds by code type, CI enforcement, exclusionsreferences/coverage-analysis.md — coverage gap analysis, mutation testing with Stryker, survived mutant patternsreferences/test-data-management.md — Fishery factories, deterministic Faker, static fixtures, when to use eachreferences/test-data-isolation.md — DB cleanup strategies, transaction rollback, per-worker schema isolationscripts/analyze-coverage.sh — parses lcov/json coverage reports and outputs improvement suggestionsassets/test-plan-template.md — fillable test strategy document for project kickoffs