Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add HoangNguyen0403/agent-skills-standard --skill quality-engineering-playwright-cligit clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standardWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/hoangnguyen0403/agent-skills-standard/quality-engineering-playwright-cli)<a href="https://agentmods.dev/skills/hoangnguyen0403/agent-skills-standard/quality-engineering-playwright-cli"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/quality-engineering-playwright-cli/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/hoangnguyen0403/agent-skills-standard/quality-engineering-playwright-cli"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/quality-engineering-playwright-cli.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00062 | $0.01172 |
| Opus 5.5 | $0.00025 | $0.00469 |
| Sonnet 5.5 | $0.00012 | $0.00234 |
| Haiku 4.5 | $0.00006 | $0.00117 |
Grade A, and why
quality-engineering-playwright-cli scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 26d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.
🎭 Playwright CLI (Web Automation)
Priority: P1 (HIGH)
[!IMPORTANT] Tier 0 (Infrastructure): Browser process management, named sessions, network/console logs. Tier 1 (Core Interactions): Clicks, fills, and navigation (
openvsgoto). Tier 2 (Verification): Snapshot-based assertions and auth state persistence.
🔌 Activation
Triggers: playwright-cli, playwright mcp, browser_snapshot, browser automation, web verify, snapshot, auth-state.json.
🪜 Driver Ladder
sh scripts/preflight.sh— exit 0 found, 2 missing, 1 broken.PLAYWRIGHT_CLI_BINoverrides lookup.playwright-cli -s={ID}— default when preflight passes and a shell exists.- Playwright MCP (
browser_navigate→browser_snapshot→browser_console_messages→browser_take_screenshot→browser_close), launched--isolated --headless --output-dir .playwright-cli/{ID}. Use when CLI missing or runtime has no shell (Antigravity, Copilot).--extensionopt-in only: not a security boundary. - Neither: ask for exported screenshots + console log; label
human-provided. - Nothing exported: return
BLOCKED (driver: playwright), continue other lanes.
One driver per session. Full table: driver-ladder.
🛠 Core Workflow
| Step | Command | Purpose |
|---|---|---|
| 1 | playwright-cli -s={ID} open <url> |
Start named session. (Mandatory -s=). |
| 2 | playwright-cli -s={ID} snapshot --aria |
Aria Snapshot: YAML-like view for LLM reasoning (Best for assertions). |
| 3 | playwright-cli -s={ID} console |
Check for JS errors/warnings. |
| 4 | playwright-cli -s={ID} screenshot |
Visual evidence. Use --mask <ref> for dynamic content. |
| 5 | playwright-cli -s={ID} close |
MANDATORY Cleanup. |
For a sticky header that appears after scrolling, scroll until the header is visible, use hover on the header (or its stable role/reference) to establish the visible state, then capture the screenshot. Keep the named session open until the evidence is captured.
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 26d ago Changed · -1 lines d7ce8a85e710
- 1mo ago Changed · +19 lines · +32 tokens per session 44f507f020b7
- 1mo ago First seen · 71 lines · 30 tokens per session scan A acdcb51d684c
quality-engineering-playwright-cli is a skill published in the GitHub repository HoangNguyen0403/agent-skills-standard (583 stars, last pushed today), licensed MIT. It adds 62 tokens to every session and 1,172 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
verify
Build/launch/drive recipe for verifying apps/docs changes at runtime (demos, docs pages, llms.txt).
browser-automation
Playwright browser automation via MCP. Covers E2E testing, UI review, web scraping, screenshot capture, and general browser interaction. MCP-first — CLI is fallback only.
nextjs-idioms
Next.js App Router architecture: React Server Components (RSC), Server Actions, nested layouts, route handlers, and streaming. Use when building or refactoring Next.js web applications. Pair with react-idioms and typescript-idioms.
react-idioms
React 19+ patterns: custom hooks, Suspense boundaries, state management, component composition, and web performance. Use when developing or refactoring React components and client applications. Pair with typescript-idioms.
phaser
Build 2D browser games with Phaser 4: scenes, sprites, Arcade/Matter physics, tilemaps, WebGL filters and GPU layers, and Phaser 3 to 4 migration.
threejs
Build and debug 3D browser apps and games with Three.js or React Three Fiber: scene, materials, lighting, GLTF, physics, character controllers, cameras, post-processing, performance.