agentmods.dev

webapp-testing

webapp-testing is a skill for Claude Code, Codex from dy9759/SpecSkillsForClaudeCode. It costs 35 tokens per session (884 once invoked), scanned A, original, no licence file.

A toolkit for testing local web applications in a real browser with Playwright, including checking behavior, screenshots, and browser logs.

In plain words
What is it for?
Use it to verify web features, investigate interface bugs, capture screenshots, and review browser logs.
Why use it?
It helps find broken user-interface behavior and inspect what happens in the browser during a test.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

not rated 5repo 10mo ago A scan 35 tokens no licence

Good fit Use it to verify web features, investigate interface bugs, capture screenshots, and review browser logs.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dy9759/specskillsforclaudecode/webapp-testing
View source ↗ dy9759/SpecSkillsForClaudeCode
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.

Any agent
npx skills add dy9759/SpecSkillsForClaudeCode --skill webapp-testing
Clone the repo
git clone --depth 1 https://github.com/dy9759/SpecSkillsForClaudeCode

Made for: Claude Code, Codex.

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 webapp-testing

README.md
[![agentmods](https://agentmods.dev/badge/skills/dy9759/specskillsforclaudecode/webapp-testing/github.svg)](https://agentmods.dev/skills/dy9759/specskillsforclaudecode/webapp-testing)
Your own site
<a href="https://agentmods.dev/skills/dy9759/specskillsforclaudecode/webapp-testing"><img src="https://agentmods.dev/badge/skills/dy9759/specskillsforclaudecode/webapp-testing/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.

agentmods 80×15 button for webapp-testing

Your own site · 80×15
<a href="https://agentmods.dev/skills/dy9759/specskillsforclaudecode/webapp-testing"><img src="https://agentmods.dev/badge/skills/dy9759/specskillsforclaudecode/webapp-testing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 884 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00035 $0.00884
Opus 5 $0.00017 $0.00442
Sonnet 5 $0.00007 $0.00177
Haiku 4.5 $0.00003 $0.00088

Measured 9d ago against content hash 51b7349e77ec, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

webapp-testing 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 9d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (examples/console_logging.py, examples/element_discovery.py, examples/static_html_automation.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/anthropic-skills/webapp-testing/SKILL.md · 96 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

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.

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. 9d ago First seen · 96 lines · 35 tokens per session scan A 51b7349e77ec

Subscribe to this mod's changes

webapp-testing is a skill published in the GitHub repository dy9759/SpecSkillsForClaudeCode (5 stars, last pushed 10mo ago), with no licence file. It adds 35 tokens to every session and 884 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.

DebuggingE2E testingTesting
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