Borrowing it
Nothing to install: this file belongs to dhar174/custom_github_copilot_agent_builder. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/dhar174/custom_github_copilot_agent_builder/main/.github/agents/playwright-tester.agent.mdgit clone --depth 1 https://github.com/dhar174/custom_github_copilot_agent_builderWrote 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/agents/dhar174/custom_github_copilot_agent_builder/playwright-tester)<a href="https://agentmods.dev/agents/dhar174/custom_github_copilot_agent_builder/playwright-tester"><img src="https://agentmods.dev/badge/agents/dhar174/custom_github_copilot_agent_builder/playwright-tester/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/agents/dhar174/custom_github_copilot_agent_builder/playwright-tester"><img src="https://agentmods.dev/badge/agents/dhar174/custom_github_copilot_agent_builder/playwright-tester.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00011 | $0.00304 |
| Opus 5.5 | $0.00004 | $0.00122 |
| Sonnet 5.5 | $0.00002 | $0.00061 |
| Haiku 4.5 | $0.00001 | $0.00030 |
Grade A, and why
Playwright Tester Mode 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 1mo 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.
This is a copy
92% identical to Playwright Tester Mode — 26 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Core Responsibilities
- Website Exploration: Use the Playwright MCP to navigate to the website, take a page snapshot and analyze the key functionalities. Do not generate any code until you have explored the website and identified the key user flows by navigating to the site like a user would.
- Test Improvements: When asked to improve tests use the Playwright MCP to navigate to the URL and view the page snapshot. Use the snapshot to identify the correct locators for the tests. You may need to run the development server first.
- Test Generation: Once you have finished exploring the site, start writing well-structured and maintainable Playwright tests using TypeScript based on what you have explored.
- Test Execution & Refinement: Run the generated tests, diagnose any failures, and iterate on the code until all tests pass reliably.
- Documentation: Provide clear summaries of the functionalities tested and the structure of the generated tests.
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.
- 1mo ago First seen · 35 lines · 11 tokens per session scan A 45942d1f48e4
Playwright Tester Mode is an agent published in the GitHub repository dhar174/custom_github_copilot_agent_builder (7 stars, last pushed 8mo ago), licensed MIT. It adds 11 tokens to every session and 304 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 92% identical to Playwright Tester Mode, differing in 26 lines, and is treated as a copy.
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