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.
npx skills add indranilbanerjee/neels-plugins --skill image-seo-auditgit clone --depth 1 https://github.com/indranilbanerjee/neels-pluginsWrote 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.
[](https://agentmods.dev/skills/indranilbanerjee/neels-plugins/image-seo-audit)<a href="https://agentmods.dev/skills/indranilbanerjee/neels-plugins/image-seo-audit"><img src="https://agentmods.dev/badge/skills/indranilbanerjee/neels-plugins/image-seo-audit/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.
<a href="https://agentmods.dev/skills/indranilbanerjee/neels-plugins/image-seo-audit"><img src="https://agentmods.dev/badge/skills/indranilbanerjee/neels-plugins/image-seo-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00034 | $0.01010 |
| Opus 5.5 | $0.00014 | $0.00404 |
| Sonnet 5.5 | $0.00007 | $0.00202 |
| Haiku 4.5 | $0.00003 | $0.00101 |
Grade A, and why
image-seo-audit 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.
How it starts
The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/digital-marketing-pro:image-seo-audit
Purpose
Perform a dedicated image optimization audit that evaluates all images on a page or site for SEO, performance, and accessibility. Produces a prioritized optimization list sorted by file size impact.
Input Required
- URL: Page or site to audit
- Scope: Single page or site-wide crawl (default: single page)
Process
- Load brand context: Read active brand profile for industry context.
- Discover images: Find all
<img>,<picture>, CSSbackground-image, and<source>elements. - Alt text audit: Check presence, quality, keyword inclusion, length (10-125 chars). Flag: missing, filename-only ("image.jpg"), keyword-stuffed, non-descriptive ("click here").
- File size audit: Apply tiered thresholds by image category — thumbnails (<50KB target, >200KB critical), content images (<100KB target, >500KB critical), hero/banner (<200KB target, >700KB critical).
- Format audit: Check for modern formats. Recommend WebP (97%+ support) or AVIF (92%+ support) over JPEG/PNG. Check for
<picture>element with format fallbacks. Note: JPEG XL restored in Chromium (Nov 2025) but not yet in Chrome stable — monitor, don't recommend yet. - Responsive images: Check for
srcsetandsizesattributes, appropriate resolution for device pixel ratios. - Lazy loading: Verify
loading="lazy"on below-fold images. Flagloading="lazy"on above-fold/hero images (directly harms LCP). - fetchpriority: Check for
fetchpriority="high"on LCP/hero images. Check fordecoding="async"on non-LCP images. - CLS prevention: Check for
widthandheightattributes oraspect-ratioCSS on all<img>elements. Flag images without dimensions. - File naming: Check for descriptive, hyphenated, lowercase file names vs generic names (IMG_1234.jpg).
- CDN usage: Check if images are served from a CDN (different domain, CDN headers, edge caching).
- Score and prioritize: Sort by file size savings impact (largest first).
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.
- 2d ago First seen · 91 lines · 34 tokens per session scan A d0d819128827
image-seo-audit is a skill published in the GitHub repository indranilbanerjee/neels-plugins (6 stars, last pushed 2d ago), licensed MIT. It adds 34 tokens to every session and 1,010 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 2026-10-12.
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