Our review
This skill enables programmatic Clerk sign-in for e2e testing, using the signInClerkUser function without interacting with the Clerk UI.
Strengths
- Avoids flaky tests caused by manual interaction with the sign-in UI.
- Handles multi-user scenarios easily via independent browser contexts.
- Allows configuration of session TTL and redirect path after sign-in.
Limitations
- Works only with Replit's Clerk Authentication support, not generic Clerk.
- Does not cover sign-up or other Clerk flows.
- Requires navigating to the returned URL to inject the session.
Use this skill when e2e testing a Replit app authenticated with Clerk and you need to sign in users without going through the UI.
Do not use it for non-Clerk authentication, or when the test intends to verify the Clerk UI itself.
Security analysis
SafeThe skill documents a helper for programmatic Clerk sign-in during e2e tests. It does not instruct destructive, exfiltrating, or obfuscated actions; it only uses a scoped function within the Playwright test environment. No dangerous shell commands or secret handling are present.
No concerns found
Examples
Sign in testuser@example.com with firstName Test and lastName User via Clerk programmatically, navigate to the sign-in URL, and verify the admin dashboard appears.Sign in two Clerk users (alice@example.com and bob@example.com) in separate browser contexts and verify each user sees only their own data.Sign in testuser@example.com via Clerk with basePath '/my-app/' and confirm the session redirects to the correct artifact preview page.name: clerk-auth-e2e-testing-only description: Programmatic Clerk sign-in for e2e testing. Use when the application authenticates with Clerk and you need to sign in test users (including multi-user scenarios) without interacting with the Clerk UI. Note this only works for applications built with Replit's Clerk Authentication support.
Clerk Auth E2E Testing Only
Sign in Clerk users programmatically for e2e tests. Use the signInClerkUser function only — do not interact with the Clerk UI directly.
Available Functions (from ExecutePlaywrightAction)
async function signInClerkUser(
signInOptions: {
firstName: string;
lastName?: string;
email: string;
ttl?: number; // TTL in seconds (default: 3600)
basePath?: string; // Relative URL path appended to the dev domain for the post-sign-in redirect
}
): Promise<string>
This function is in scope of the code for ExecutePlaywrightAction and can be used directly without any registration.
It returns a sign-in URL; navigate a page to that URL to inject the sign-in session.
Usage
Sign in a single user
const signInUrl = await signInClerkUser({
firstName: "Test",
lastName: "User",
email: "testuser@example.com",
});
// Navigate to the returned sign-in URL to inject the sign-in session.
await page.goto(signInUrl);
Sign in for an artifact in a pnpm workspace
When testing an artifact served under its own preview path (e.g. in a multi-artifact or pnpm workspace repl), set basePath to the artifact's preview URL so the sign-in session redirects to the correct artifact.
// Set basePath to the artifact's preview path so Clerk redirects there after sign-in
const signInUrl = await signInClerkUser({
firstName: "Test",
lastName: "User",
email: "testuser@example.com",
basePath: "/my-app/",
});
await page.goto(signInUrl);
Sign in multiple users in independent browser contexts
const context = await newBrowserContext({ /* context options */ });
context.setDefaultTimeout(3000);
const newPage = await context.newPage();
const signInUrl = await signInClerkUser({
firstName: "Bob",
lastName: "Test",
email: "bobtest@example.com",
});
await newPage.goto(signInUrl);
Test Plan Examples
- [Clerk] Sign in
admin@example.comprogrammatically and navigate to the returned sign-in URL - [Browser] Verify the admin dashboard appears
- [Clerk] Sign in a second user in a new browser context
- [Browser] Verify both users see their own data
Notes
- Sessions are scoped to the browser context whose page navigates to the sign-in URL
- Do not interact with the Clerk UI (sign-in forms, modals) — only use
signInClerkUser - The default session TTL is 3600 seconds; pass
ttlto change it
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