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 sfc-gh-dflippo/snowflake-dbt-demo --skill playwright-mcpgit clone --depth 1 https://github.com/sfc-gh-dflippo/snowflake-dbt-demoWrote 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/sfc-gh-dflippo/snowflake-dbt-demo/playwright-mcp)<a href="https://agentmods.dev/skills/sfc-gh-dflippo/snowflake-dbt-demo/playwright-mcp"><img src="https://agentmods.dev/badge/skills/sfc-gh-dflippo/snowflake-dbt-demo/playwright-mcp/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/sfc-gh-dflippo/snowflake-dbt-demo/playwright-mcp"><img src="https://agentmods.dev/badge/skills/sfc-gh-dflippo/snowflake-dbt-demo/playwright-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 170 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00050 | $0.00968 |
| Opus 5 | $0.00025 | $0.00484 |
| Sonnet 5 | $0.00010 | $0.00194 |
| Haiku 4.5 | $0.00005 | $0.00097 |
Grade A, and why
playwright-mcp 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 11d 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 — 186 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Playwright MCP Testing
Automate browser testing, web scraping, and UI validation using Playwright MCP server for comprehensive browser automation.
Quick Start
Core Testing Workflow:
- Navigate to application
- Take snapshot (accessibility tree)
- Interact with elements
- Verify expected behavior
- Take screenshots for documentation
Key Tools
Navigation & Waiting
browser_navigate- Load URLbrowser_wait_for- Wait for time, text, or element
Interaction
browser_click- Click buttons and elementsbrowser_fill_form- Batch fill multiple form fieldsbrowser_type- Type into inputsbrowser_select_option- Select dropdown options
Validation
browser_snapshot- Accessibility tree (for AI analysis)browser_take_screenshot- Visual capturebrowser_console_messages- Check for JavaScript errors
Testing Patterns
Page Load Verification
Navigate to http://localhost:8501
Wait 5 seconds
Take snapshot
Verify expected elements present
Form Testing
Fill form fields (use browser_fill_form for speed)
Click Submit button
Wait for "Success" text to appear
Take screenshot
Responsive Design
Resize to 375x667 (mobile)
Take screenshot
Resize to 1920x1080 (desktop)
Take screenshot
Multi-Page Navigation
Navigate to homepage
Click navigation link
Verify URL changed
Verify new page content
Best Practices
✅ DO:
- Use
browser_snapshotfor AI analysis - Wait for content (3-5 seconds)
- Batch form fields with
browser_fill_form - Use element refs from snapshots for reliable clicks
- Check console for errors
❌ AVOID:
- Using screenshots when you need to interact
- Typing each field individually
- Skipping waits for dynamic content
- Ignoring console errors
Common Workflows
Pre-Deployment Testing
- Test all pages load without errors
- Verify navigation works
- Test forms submit successfully
- Check data displays correctly
- Validate responsive design (375, 768, 1920px)
- Check console for JavaScript errors
What ships with it
1 file 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.
- 11d ago First seen · 186 lines · 50 tokens per session scan A a45171560615
playwright-mcp is a skill published in the GitHub repository sfc-gh-dflippo/snowflake-dbt-demo (33 stars, last pushed 2d ago), licensed Apache-2.0. It adds 50 tokens to every session and 968 once invoked, about $0.0003 per session on Opus 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
browse
Drive a real browser through Aside: open a page, read it, click through a flow, take screenshots, check console errors. (gstack).
playwright-cli
A command-line tool for controlling Chromium, Firefox, and WebKit browsers, including navigation, page interaction, screenshots, PDFs, and recorded actions.
webapp-testing
Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
create-verification-skill
Create a repo-local verification skill and exhaustive feature map for driving a real app through its UI, CLI, or API. Use for "create a verification skill", "make a verify skill for this repo", or "document how agents can verify this app".
browser-qa
A browser-based quality check for deployed web pages and user flows. It uses browser automation to test rendering, navigation, forms, interactions, responsive behaviour, and accessibility-related issues.
test-electron-app
Drive the real running PostHog Electron app (live tRPC, workspace-server, real data) over CDP with agent-browser. Connect to the running app on port 9222, test desktop changes against a local Django stack, snapshot the accessibility tree, inspect network requests, and screenshot only when explicitly asked. Use when…