v1.3.0 - Testing Essentials

What's New

New testing-essentials skill providing proactive testing guidance for all Elixir/Phoenix test files.

Added

• testing-essentials skill — invoked before any _test.exs file:
  • 8 non-negotiable RULES covering setup, coverage, and assertion patterns
  • TDD workflow guidance (write failing test first)
  • DataCase/ConnCase setup, fixture, LiveView, context, and changeset test skeletons
  • Pointer to testing-guide.md for comprehensive examples

Changed

• testing-guide.md refactored into a deep reference companion (no duplication with skill)
• All 4 existing skills now include a ## Testing pointer to testing-essentials

Updating

/plugin
# Select "Marketplaces" → "elixir-phoenix-guide" → "Update"