compare

compare is a skill for Claude Code from Crawlio-app/crawlio-browser. It costs 22 tokens per session (949 once invoked), scanned A, original, Apache-2.0.

A tool for comparing two websites across 11 areas, including speed, security, search visibility, accessibility, and mobile support.

In plain words
What is it for?
Use it to compare competitors, staging and production sites, or two technical implementations and identify their strengths, gaps, and missing data.
Why use it?
It creates an evidence-based view of where two sites differ instead of relying on a general impression.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to compare competitors, staging and production sites, or two technical implementations and identify their strengths, gaps, and missing data.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/crawlio-app/crawlio-browser/compare
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 Crawlio-app/crawlio-browser --skill compare
Clone the repo
git clone --depth 1 https://github.com/Crawlio-app/crawlio-browser

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 compare

README.md
[![agentmods](https://agentmods.dev/badge/skills/crawlio-app/crawlio-browser/compare/github.svg)](https://agentmods.dev/skills/crawlio-app/crawlio-browser/compare)
Your own site
<a href="https://agentmods.dev/skills/crawlio-app/crawlio-browser/compare"><img src="https://agentmods.dev/badge/skills/crawlio-app/crawlio-browser/compare/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 compare

Your own site · 80×15
<a href="https://agentmods.dev/skills/crawlio-app/crawlio-browser/compare"><img src="https://agentmods.dev/badge/skills/crawlio-app/crawlio-browser/compare.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 949 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 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 $0.00022 $0.00949
Opus 5.5 $0.00009 $0.00380
Sonnet 5.5 $0.00004 $0.00190
Haiku 4.5 $0.00002 $0.00095

Measured 1mo ago against content hash 2baf461ba4a7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

compare 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.

skills/compare/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Compare

Side-by-side comparison of two websites across 11 typed dimensions. One call captures both sites and returns a scaffold with per-dimension comparability. Produces one finding per dimension.

When to Use

  • Compare two competing sites (framework, performance, security)
  • Audit staging vs production
  • Benchmark a site against a competitor across all 11 dimensions
  • Identify gaps where one site excels and the other falls short

The 11 Dimensions

framework, performance, security, seo, accessibility, error-surface, third-party-load, architecture, content-delivery, mobile-readiness, data-structure.

Protocol

Acquire -> Normalize -> Analyze with Evidence Mode.

1. Connect

connect_tab({ url: "https://site-a.com", background: true })

comparePages handles navigation to both sites internally.

2. Acquire + Normalize

const comparison = await smart.comparePages(
  "https://site-a.com",
  "https://site-b.com"
);
// comparison.siteA / siteB — full PageEvidence (capture, performance, security, etc.)
// comparison.scaffold.dimensions[] — 11 objects: { name, comparable, siteA.type/value, siteB.type/value }
// comparison.scaffold.sharedFields / missingFields
// comparison.siteA.gaps[] / siteB.gaps[] — what failed per site

3. Analyze — produce findings

Walk the scaffold. One finding per dimension.

for (const dim of comparison.scaffold.dimensions) {
  if (!dim.comparable) {
    smart.finding({
      claim: `${dim.name}: not comparable — data missing`,
      evidence: [`siteA: ${dim.siteA.type}`, `siteB: ${dim.siteB.type}`],
      sourceUrl: comparison.siteA.capture?.url || "unknown",
      confidence: "low", method: "comparePages", dimension: dim.name
    });
    continue;
  }
  smart.finding({
    claim: `${dim.name}: both sites present — ready for comparison`,
    evidence: [
      `siteA (${dim.siteA.type}): ${JSON.stringify(dim.siteA.value)}`,
      `siteB (${dim.siteB.type}): ${JSON.stringify(dim.siteB.value)}`
    ],
    sourceUrl: comparison.siteA.capture?.url || "unknown",
    confidence: "high", method: "comparePages", dimension: dim.name
  });
}

Read the full file on GitHub · 110 lines

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. 1mo ago First seen · 110 lines · 22 tokens per session scan A 2baf461ba4a7

Subscribe to this mod's changes

compare is a skill published in the GitHub repository Crawlio-app/crawlio-browser (8 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 22 tokens to every session and 949 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-31.

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