# Tester

> Run end-to-end web quality audits with Playwright and Lighthouse using existing project scripts first. Use when the user says /tester, e2e test, smoke test, Playwright audit, Lighthouse audit, performance audit, accessibility audit, dark mode audit, mobile audit, or asks for 100/100 Lighthouse improvement guidance.

- **Type:** Skill
- **Install:** `agentstack add skill-erikfiala-e2e-tester-tester`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [erikfiala](https://agentstack.voostack.com/s/erikfiala)
- **Installs:** 0
- **Category:** [Web & Browser](https://agentstack.voostack.com/c/web-and-browser)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [erikfiala](https://github.com/erikfiala)
- **Source:** https://github.com/erikfiala/e2e-tester/tree/master/.cursor/skills/tester

## Install

```sh
agentstack add skill-erikfiala-e2e-tester-tester
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# E2E Playwright + Lighthouse Tester

Use this skill to run reproducible e2e and Lighthouse checks across a target web repo, with discovery-first command selection and clear reporting.

## Workflow

1. **Discover first**
   - Run:
     - `python3 .cursor/skills/tester/scripts/discover_audit_targets.py .`
     - Optional JSON output: `python3 .cursor/skills/tester/scripts/discover_audit_targets.py . --json`
   - Read discovered package scripts, runner files, and PWA signals before deciding what to run.

2. **Runner selection priority**
   - Prefer existing `npm` / `pnpm` / `yarn` scripts that already run Playwright and Lighthouse.
   - Otherwise use checked-in runner files in common locations (`perf/`, `scripts/`, `e2e/`, `tests/`).
   - Only use ad-hoc `npx playwright` / `npx lighthouse` commands if no native runner exists.

3. **Execution matrix**
   - For Lighthouse, target all slices when technically possible:
     - `light-desktop`
     - `light-mobile`
     - `dark-desktop`
     - `dark-mobile`
   - Attempt categories:
     - `performance`
     - `accessibility`
     - `best-practices`
     - `seo`
     - `pwa` (when supported by installed Lighthouse and app signals)
   - Prefer preview or production-like mode instead of noisy local dev mode when the repo supports it.

4. **100/100 objective**
   - Always optimize toward 100/100 in Lighthouse categories and Web Vitals-related audits.
   - Do not claim false success; explicitly list blockers and remaining deltas to 100.

## Reporting contract

Always report by package/surface:

- Commands run, including whether native or adapted.
- Playwright findings: failing flows, flaky clues, console/page errors, failed requests, auth blockers.
- Lighthouse findings per matrix slice (`light-desktop`, `light-mobile`, `dark-desktop`, `dark-mobile`).
- A dedicated **100/100 gap analysis** section with highest impact opportunities.
- Explicit coverage gaps (skipped routes, no dark mode, no mobile emulation, missing credentials, unsupported PWA category).

## Guardrails

- Keep commands non-interactive whenever possible.
- Never silently skip a matrix slice; report why it was skipped.
- If the repository is not a web app, stop quickly and state that no web target was detected.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [erikfiala](https://github.com/erikfiala)
- **Source:** [erikfiala/e2e-tester](https://github.com/erikfiala/e2e-tester)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-erikfiala-e2e-tester-tester
- Seller: https://agentstack.voostack.com/s/erikfiala
- Browse the marketplace: https://agentstack.voostack.com/browse

---
Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.