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 Aetheria-Labs1/storefront-skills --skill cartgit clone --depth 1 https://github.com/Aetheria-Labs1/storefront-skillsWrote 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/aetheria-labs1/storefront-skills/cart)<a href="https://agentmods.dev/skills/aetheria-labs1/storefront-skills/cart"><img src="https://agentmods.dev/badge/skills/aetheria-labs1/storefront-skills/cart/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/aetheria-labs1/storefront-skills/cart"><img src="https://agentmods.dev/badge/skills/aetheria-labs1/storefront-skills/cart.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 | $0.00033 | $0.00511 |
| Opus 5 | $0.00016 | $0.00255 |
| Sonnet 5 | $0.00007 | $0.00102 |
| Haiku 4.5 | $0.00003 | $0.00051 |
Grade A, and why
cart 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 7d 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 — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Configure a Cart
Cart profiles are managed separately from page section HTML.
Use lexsis_cart.get and, when requested,
lexsis_drafts.cart_set and lexsis_drafts.cart_edit. Resolve unfamiliar
argument schemas with exact router/action discovery. An empty discovery result
is not a cart outage; the actual cart call determines availability. Do not
infer the effective cart profile from page HTML.
Resolve the target store from a page binding, an explicit saved choice, or the
unambiguous default in work/storefront/setup/setup.json. If it is not saved,
stop and ask the user to run /setup; never invoke setup automatically.
Rules
- A page enables the cart through its supported page configuration; do not add DrawerShell or cart-line markup to page sections.
- Effective profile order is page assignment, campaign assignment, store default, then legacy fallback.
- Draft profile edits are not live until published in the Lexsis app.
- Do not invent products, prices, currencies, offers, or selling plans.
Workflow
- Call
lexsis_cart.get.- Use
page_idto inspect the effective profile and resolution source. - Use
cart_profile_idto inspect an editable profile. - Use
store_idto list profiles.
- Use
- When requested, assign a published profile with
lexsis_draftsactioncart_set. Passing a null profile removes the page assignment. - Edit a draft with
lexsis_draftsactioncart_editand a partial patch. Supported areas include mode, layout, rules, commerce settings, offers, responsive presentation, and scoped custom CSS. - Re-read the page with
lexsis_cart.get. - Preview add-to-cart and header cart triggers on desktop and mobile.
Use Shopify product GIDs for offers. Show subscriptions only when real selling
plans exist. Cart triggers dispatch cart:open; they do not need a profile ID.
Custom CSS must remain scoped to the cart. External imports, remote URLs, script escapes, and unbalanced rules are not allowed.
Return
What ships with it
1 file 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.
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.
- 7d ago Changed · +7 lines 1ebf8d7bf879
- 8d ago Changed · -107 lines · +6 tokens per session 49a41de8e349
- 12d ago First seen · 155 lines · 27 tokens per session scan A c250aa1047d6
cart is a skill published in the GitHub repository Aetheria-Labs1/storefront-skills (8 stars, last pushed today), licensed MIT. It adds 33 tokens to every session and 511 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 2026-08-31.
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