Local-first memory for AI coding agents (PMB)
by Shippers
Developers waste time re-explaining their project to AI agents every session.
Free
Works with the AI tools you already use
See it in action
You say
Framework: Playwright. Flow: User logs in, goes to settings, and changes their display name. Base URL: https://app.test. Auth: storageState. Route map: /login, /settings.
Your agent does
// tests/settings.spec.ts import { test, expect } from '@playwright/test';
test('user changes display name', async ({ page }) => { await page.goto('/settings'); await page.getByLabel('Display Name').fill('New Name'); await page.getByRole('button', { name: /save/i }).click(); await expect(page.getByText('Settings saved')).toBeVisible(); });
About this skill
The problem
Writing end-to-end tests feels like a chore, leading to skipped coverage or brittle test suites full of nth-child selectors. Developers often waste hours debugging flaky tests that fail because of race conditions or poor selector priority.
What it does
- Converts plain-English user flows into production-ready test scripts.
- Enforces a strict selector hierarchy, prioritizing
data-testidand ARIA roles over brittle CSS classes. - Generates framework-specific code for Playwright, Cypress, or Detox.
- Builds in flake-proofing measures like network idle waits, animation disabling, and automatic retries.
- Handles setup and teardown logic, including API-based authentication and data cleanup.
Frameworks & tools
Supports Playwright, Cypress, and Detox. Compatible with any web or mobile project using standardized testing selectors.
Why this beats prompting it yourself
Generic LLM prompts often hallucinate selectors or use sleep commands that cause CI flakiness. This skill strictly follows industry best practices for test stability, implements deterministic data handling, and ensures every UI action is paired with a verifiable assertion.
Use cases
- Generating a full Playwright suite from a product requirements document.
- Converting a manual QA bug report into a reproducible Cypress test.
- Creating Detox integration tests for complex mobile onboarding flows.
- Building idempotent tests that clean up their own state via API.
Known limitations
Requires a basic route map and component map to avoid TODO placeholders for selectors and endpoints.
How to install
Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.
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