web-validation

web-validation is a skill for Claude Code from bejranonda/LLM-Autonomous-Agent-Plugin-for-Claude. It costs 21 tokens per session (4,792 once invoked), scanned A, original, no licence file.

A set of methods for checking web pages, including signed-in pages, screenshots, mobile layouts, and detected errors.

In plain words
What is it for?
Use it to validate web pages across authentication states and screen sizes, capture screenshots, and find errors.
Why use it?
It helps reveal problems that may only appear for authenticated users, on small screens, or in the page's visual output.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the autonomous-agent plugin — 27 skills, 1 command, 36 agents shipped together

Good fit Use it to validate web pages across authentication states and screen sizes, capture screenshots, and find errors.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/bejranonda/llm-autonomous-agent-plugin-for-claude/web-validation
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 bejranonda/LLM-Autonomous-Agent-Plugin-for-Claude --skill web-validation
Clone the repo
git clone --depth 1 https://github.com/bejranonda/LLM-Autonomous-Agent-Plugin-for-Claude

Made for: Claude Code.

Or install autonomous-agent, the plugin that ships this one along with the rest of its 27 skills, 1 command, 36 agents.

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 web-validation

README.md
[![agentmods](https://agentmods.dev/badge/skills/bejranonda/llm-autonomous-agent-plugin-for-claude/web-validation/github.svg)](https://agentmods.dev/skills/bejranonda/llm-autonomous-agent-plugin-for-claude/web-validation)
Your own site
<a href="https://agentmods.dev/skills/bejranonda/llm-autonomous-agent-plugin-for-claude/web-validation"><img src="https://agentmods.dev/badge/skills/bejranonda/llm-autonomous-agent-plugin-for-claude/web-validation/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 web-validation

Your own site · 80×15
<a href="https://agentmods.dev/skills/bejranonda/llm-autonomous-agent-plugin-for-claude/web-validation"><img src="https://agentmods.dev/badge/skills/bejranonda/llm-autonomous-agent-plugin-for-claude/web-validation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,792 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 2 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 $0.00021 $0.04792
Opus 5 $0.00010 $0.02396
Sonnet 5 $0.00004 $0.00958
Haiku 4.5 $0.00002 $0.00479

Measured 6d ago against content hash 2087b2ded257, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

web-validation scanned grade A with 2 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 6d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

import urllib.request

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

subprocess.Popen(['python', 'lib/dashboard.py', '--no-browser', '--port', '5000'])
skills/web-validation/SKILL.md · 742 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

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. 6d ago First seen · 742 lines · 21 tokens per session scan A 2087b2ded257

Subscribe to this mod's changes

web-validation is a skill published in the GitHub repository bejranonda/LLM-Autonomous-Agent-Plugin-for-Claude (28 stars, last pushed 2mo ago), with no licence file. It adds 21 tokens to every session and 4,792 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

Other skills, from other repositories