integration-testing When to use Load this skill whenever tasks include: - authoring or debugging pipeline test fixtures ( / inputs, output, config files) - setting up or debugging system tests ( , , mock APIs, 0-hits failures) - writing script tests for failure paths, API error handling, or package upgrades When not to use Do not use this skill as the primary guide for: - ingest pipeline processor design and architecture ( ) - CEL program development ( ) - broad elastic-package command selection and stack lifecycle ( ) Reference files — load the one that matches your test type | Test type | L…