Playwright Tester Mode

Playwright Tester Mode is an agent for coding agents from github/awesome-copilot. It costs 11 tokens per session (292 once invoked), scanned A, original, MIT.

A testing assistant for Playwright, a tool that controls a web browser to check website behavior. It explores user flows before creating or improving TypeScript tests.

In plain words
What is it for?
Use it to explore websites, identify important user journeys, generate Playwright tests, run them, investigate failures, and document what they cover.
Why use it?
It helps produce reliable browser tests with locators based on the actual page, and helps diagnose and refine tests that fail.

Agent

About the project

Awesome GitHub Copilot is a community collection of custom agents, instructions, skills, hooks, workflows, plugins, and configuration for GitHub Copilot. It helps Copilot users customize coding and development tasks. Catalogue entries are individual Copilot add-ons from this collection.

github/awesome-copilot · 38,647 stars · on GitHub

Install

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.

agentmods
npx agentmods add agents/github/awesome-copilot/playwright-tester
Clone the repo
git clone --depth 1 https://github.com/github/awesome-copilot

Wrote 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.

agentmods badge for Playwright Tester Mode

README.md
[![agentmods](https://agentmods.dev/badge/agents/github/awesome-copilot/playwright-tester.svg)](https://agentmods.dev/agents/github/awesome-copilot/playwright-tester)
Your own site
<a href="https://agentmods.dev/agents/github/awesome-copilot/playwright-tester"><img src="https://agentmods.dev/badge/agents/github/awesome-copilot/playwright-tester.svg" alt="Measured on agentmods" height="20"></a>
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 292 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00011 $0.00292
Opus 5 $0.00005 $0.00146
Sonnet 5 $0.00002 $0.00058
Haiku 4.5 $0.00001 $0.00029

Measured yesterday against content hash 67b9e4210df2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

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 yesterday.

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.

Origin

Copies of this mod

4 near-identical copies found in the catalogue:

agents/playwright-tester.agent.md · 15 lines

What it actually says

Core Responsibilities

  1. 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.
  2. 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.
  3. 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.
  4. Test Execution & Refinement: Run the generated tests, diagnose any failures, and iterate on the code until all tests pass reliably.
  5. Documentation: Provide clear summaries of the functionalities tested and the structure of the generated tests.
Changes

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.

  1. yesterday First seen · 15 lines · 11 tokens per session scan A 67b9e4210df2

Subscribe to this mod's changes

Playwright Tester Mode is an agent published in the GitHub repository github/awesome-copilot (38,647 stars, last pushed today), licensed MIT. It adds 11 tokens to every session and 292 once invoked, about $0.0001 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 2026-09-03.