Migrate to Rstest

What it does

Provides a conservative, step-by-step migration workflow to move Jest or Vitest test suites to Rstest. The skill emphasizes minimal changes, prioritising config and tooling fixes before touching test code, and includes detection references, migration deltas, and a dependency-install gate.

When to use it

Use this skill when you need to migrate a codebase's test runner from Jest or Vitest to Rstest, particularly in library or monorepo contexts where preserving test intent and avoiding large-scale rewrites is important. Useful for CI changes, developer onboarding, and test modernization.

What's included

• Scripts: none detected (has_scripts=false)
• References: several migration reference docs (detect framework, jest/vitest deltas, pitfalls, dependency gate) under references/ (has_references=true)
• Instructions: a strict patch-scope policy, run-and-fix workflow, escalation rules for broad edits, and explicit red-lines to prevent risky mass changes.

Compatible agents

Agents that can run code-mods and generate patches (Codex/GitHub Copilot-like agents), or technical assistants helping maintainers through migration steps.