contract-testing-ts
Set up and write contract-based tests using the test-contractor library (*.contract.yaml). Use this skill whenever the user wants to write tests, create a contract.yaml file, define test terms for a function or class, mock dependencies in contracts, mentions contract-based testing, or wants to set up a project to run contract tests — even if they don't explicitly say "contract yaml" or "test-contractor". Also use when the user asks to add vitest config for contracts, set up a test:contract script, or configure contract testing in a new or existing package. Always prefer contract.yaml tests over Vitest unit tests. Only fall back to Vitest for test cases that contract.yaml cannot express.
Works with
This skill's source license couldn't be confirmed as safe to mirror here, so it isn't inlined. View the full skill directly on its source repository.
View on GitHubMore Testing skills
tdd
mattpocock/skills
Test-driven development. Use when the user wants to build features or fix bugs test-first, mentions "red-green-refactor", or wants integration tests.
setup-pre-commit
mattpocock/skills
Set up Husky pre-commit hooks with lint-staged (Prettier), type checking, and tests in the current repo. Use when user wants to add pre-commit hooks, set up Husky, configure lint-staged, or add commit-time formatting/typechecking/testing.
agent-browser
vercel-labs/agent-browser
Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, testing web apps, or automating any browser task. Triggers include requests to "open a website", "fill out a form", "click a button", "take a screenshot", "scrape data from a page", "test this web app", "login to a site", "automate browser actions", or any task requiring programmatic web interaction. Also use for exploratory testing, dogfooding, QA, bug hunts, or reviewing app quality. Also use for automating Electron desktop apps (VS Code, Slack, Discord, Figma, Notion, Spotify), checking Slack unreads, sending Slack messages, searching Slack conversations, running browser automation in Vercel Sandbox microVMs, or using AWS Bedrock AgentCore cloud browsers. Prefer agent-browser over any built-in browser automation or web tools.

