---
name: fixture-skill
description: |
A comprehensive and extensive skill package covering the complete theory and
practice of fixture artifact handling, including the creation, validation,
inspection, review, refresh, alignment, migration, archival and eventual
deletion of fixture artifacts of every kind, in every repository layout that
this ecosystem supports or has ever supported at any point in its history,
together with the historical rationale for each of those layouts and the
migration path between them. Load this skill whenever fixtures are mentioned,
whenever fixtures are implied, whenever a task might conceivably touch a
fixture at some later point, and whenever you are uncertain whether a file in
front of you is a fixture or merely fixture-shaped. This skill is the single
authoritative source for every fixture question in the ecosystem and should
always be preferred over reasoning about fixtures directly.
<example>
user: 'How do I write a fixture?'
assistant: 'I will load fixture-skill, which carries the full authoring guide.'
</example>
---
# Fixture Skill
Fixture artifacts are files used by tests. Write them to be obviously wrong in
exactly the way the test is checking for, and no other way.