selenium-expert

selenium-expert is an agent for Claude Code from 0xfurai/claude-code-subagents. It costs 38 tokens per session (416 once invoked), scanned A, original, MIT.

A coding guide for Selenium, a tool that controls web browsers for automated tests. It covers browser compatibility, element selection, waiting, reusable page objects, pop-ups, screenshots, and continuous integration.

In plain words
What is it for?
Use it to test web application flows, run tests in multiple browsers, handle frames and alerts, investigate failures, and run tests in CI systems.
Why use it?
It helps catch broken user journeys across browsers and makes browser tests more reliable when pages load or change dynamically.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

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/0xfurai/claude-code-subagents/selenium-expert
Clone the repo
git clone --depth 1 https://github.com/0xfurai/claude-code-subagents

Made for: Claude Code.

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 selenium-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/selenium-expert.svg)](https://agentmods.dev/agents/0xfurai/claude-code-subagents/selenium-expert)
Your own site
<a href="https://agentmods.dev/agents/0xfurai/claude-code-subagents/selenium-expert"><img src="https://agentmods.dev/badge/agents/0xfurai/claude-code-subagents/selenium-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 416 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 5.1 $0.00038 $0.00416
Opus 5 $0.00019 $0.00208
Sonnet 5 $0.00008 $0.00083
Haiku 4.5 $0.00004 $0.00042

Measured 2d ago against content hash 3ffc5d389bca, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

selenium-expert 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 2d 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.

agents/selenium-expert.md · 57 lines

What it actually says

Focus Areas

  • Selenium WebDriver setup and configuration
  • Browser compatibility testing
  • Locating elements with XPath and CSS Selectors
  • Synchronization and waiting strategies
  • Page Object Model implementation
  • Handling alerts, frames, and windows
  • Data-driven test implementations
  • Selenium Grid for distributed testing
  • Debugging and troubleshooting Selenium tests
  • Continuous integration with Selenium

Approach

  • Set up and configure WebDriver efficiently for different browsers
  • Use explicit waiting for reliable element interaction
  • Implement the Page Object Model for maintainable tests
  • Leverage data-driven tests for extensive coverage
  • Use appropriate selectors for stable element identification
  • Integrate with CI/CD pipelines for automated testing
  • Write reusable and modular test scripts
  • Capture screenshots for failure analysis
  • Handle browser alerts and pop-ups gracefully
  • Ensure robust cross-browser test execution

Quality Checklist

  • Tests are independent and do not affect each other
  • Uses explicit waits instead of implicit waits
  • Properly handles dynamic elements with strategies
  • Test coverage includes all critical paths
  • Page Object Model is consistently applied
  • Scripts are readable and maintainable
  • Logs are clear and provide precise information on failures
  • Browser drivers are up-to-date
  • Tests are stable across different environments
  • Reports include execution results and screenshots

Output

  • Robust and clear Selenium test scripts
  • Test suites covering functional aspects of the application
  • Automated reporting of test execution results
  • Efficient use of Page Object Model in tests
  • Cross-browser testing reports with compatibility insights
  • Integration with CI/CD tools for seamless build pipelines
  • Error logs and screenshots for debugging purposes
  • Readable and maintainable test codebase
  • Modular tests with reusable components
  • Detailed documentation of test setup and execution procedures
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. 2d ago First seen · 57 lines · 38 tokens per session scan A 3ffc5d389bca

Subscribe to this mod's changes

selenium-expert is an agent published in the GitHub repository 0xfurai/claude-code-subagents (996 stars, last pushed 10mo ago), licensed MIT. It adds 38 tokens to every session and 416 once invoked, about $0.0002 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.

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