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 ajmaluk/site-mirror-skill --skill antigravity-site-mirrorgit clone --depth 1 https://github.com/ajmaluk/site-mirror-skillWrote 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/ajmaluk/site-mirror-skill/antigravity-site-mirror)<a href="https://agentmods.dev/skills/ajmaluk/site-mirror-skill/antigravity-site-mirror"><img src="https://agentmods.dev/badge/skills/ajmaluk/site-mirror-skill/antigravity-site-mirror/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/ajmaluk/site-mirror-skill/antigravity-site-mirror"><img src="https://agentmods.dev/badge/skills/ajmaluk/site-mirror-skill/antigravity-site-mirror.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 | $0.00050 | $0.00682 |
| Opus 5 | $0.00025 | $0.00341 |
| Sonnet 5 | $0.00010 | $0.00136 |
| Haiku 4.5 | $0.00005 | $0.00068 |
Grade A, and why
site-mirror scanned grade A with 1 finding 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 11d 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.
Mirror live websites to your local machine using a combination of `wget` and How it starts
The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
What I do
- Download websites for offline access, including HTML, CSS, JS, images, fonts and media.
- Provide three modes:
- static mode via
wgetfor simple sites. - dynamic single‑page mode via Playwright for JavaScript‑heavy pages.
- dynamic multi‑page mode via Playwright that follows internal links within the same domain.
- static mode via
- Generate one or more
index.htmlfiles and areport.jsonsummarizing captured assets.
When to use me
Use this skill when you need an exact copy of a site for analysis, backup or redesign. Use static mode for server‑rendered pages, dynamic single‑page mode for SPAs and interactive pages, and dynamic multi‑page mode when you need to mirror multiple internal pages.
How to run
Within Antigravity's agent environment, run the appropriate command via the shell tool:
python3 mirror.py <URL> -o <output_dir>
for static sites, or
python3 mirror_dynamic.py <URL> -o <output_dir>
for dynamic single‑page sites.
To mirror multiple pages on a dynamic site, run:
python3 mirror_dynamic_multi.py <URL> -o <output_dir> --depth <N> --concurrency 3 --max-pages 50
Replace <N> with the maximum link depth to follow. Use --concurrency to set how many
pages run in parallel and --max-pages to limit the total pages captured. After running,
open the relevant index.html files to view your mirrored site. A JSON report will
also be saved in the output directory.
Installation
- Copy the
antigravity-site-mirrordirectory into your Antigravity skills folder. On most setups this is located at~/.antigravity/skills/. For project‑specific usage, place it under.antigravity/skills/in your project root. - Make sure
mirror.pyandmirror_dynamic.pyare either in your project root or installed as executable scripts accessible from your PATH. - Restart the Antigravity IDE or CLI to load the new skill. It should appear in the skills list or be auto‑detected.
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.
- 11d ago First seen · 78 lines · 50 tokens per session scan A 278e3f053af7
site-mirror is a skill published in the GitHub repository ajmaluk/site-mirror-skill (2 stars, last pushed 2mo ago), licensed MIT. It adds 50 tokens to every session and 682 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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