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 agentmods add skills/imoonkey/openweb/bestbuynpx skills add imoonkey/openweb --skill bestbuygit clone --depth 1 https://github.com/imoonkey/openwebWrote 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/imoonkey/openweb/bestbuy)<a href="https://agentmods.dev/skills/imoonkey/openweb/bestbuy"><img src="https://agentmods.dev/badge/skills/imoonkey/openweb/bestbuy.svg" alt="Measured on agentmods" 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 | $0.00000 | $0.00759 |
| Opus 5 | $0.00000 | $0.00380 |
| Sonnet 5 | $0.00000 | $0.00152 |
| Haiku 4.5 | $0.00000 | $0.00076 |
Grade A, and why
bestbuy 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 4d 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.
Best Buy
Overview
E-commerce — electronics retailer. Three read APIs (search, details, pricing) plus a write pair (addToCart / removeFromCart) keyed by server-generated lineId.
Workflows
Search and compare products
searchProducts(query)→ suggestion terms, categories,skuId[]getProductDetails(skuids ← searchProducts)→ name, image, rating, reviewCountgetProductPricing(skus ← searchProducts)→ currentPrice, regularPrice, savings, availability
Add an item to cart
searchProducts(query)→skuId[]getProductPricing(skus ← searchProducts)→ confirmpurchasable=true(some SKUs are not online-sellable)addToCart(skuId ← searchProducts)→cartCount,cartSubTotal,summaryItems[].lineId
Add then remove (round-trip)
addToCart(skuId)→summaryItems[0].lineIdremoveFromCart(lineId ← addToCart.summaryItems[0].lineId)→order.cartItemCount,order.lineItems[]
Operations
| Operation | Intent | Key Input | Key Output | Notes |
|---|---|---|---|---|
| searchProducts | search by keyword | query | terms, categories, skuId[] | entry point |
| getProductDetails | product info by SKU | skuids ← searchProducts | name, image, rating, reviewCount | comma-separated SKUs |
| getProductPricing | pricing by SKU | skus ← searchProducts | currentPrice, regularPrice, savings, purchasable | comma-separated SKUs |
| addToCart | add product to cart | skuId ← searchProducts | cartCount, cartSubTotal, summaryItems[].lineId | write / caution; POST /cart/api/v1/addToCart |
| removeFromCart | remove cart line | lineId ← addToCart.summaryItems[0].lineId | order.cartItemCount, order.lineItems[] | write / caution; DELETE /cart/item/{lineId} |
Quick Start
# Search for products
openweb bestbuy exec searchProducts '{"query":"hdmi cable","count":3}'
# Get product details
openweb bestbuy exec getProductDetails '{"skuids":"6472356,6430949"}'
# Pricing
openweb bestbuy exec getProductPricing '{"skus":"6472356"}'
# Add to cart — capture the returned lineId
openweb bestbuy exec addToCart '{"items":[{"skuId":"6472356"}]}'
# Remove from cart — uses path param, NOT a JSON body
openweb bestbuy exec removeFromCart '{"lineId":"<lineId-from-addToCart>"}'
What ships with it
10 files 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.
- adapters/bestbuy-read.ts 5.1 KB runs code
- DOC.md 3.4 KB
- examples/addToCart.example.json 295 B
- examples/getProductDetails.example.json 287 B
- examples/getProductPricing.example.json 277 B
- examples/removeFromCart.example.json 320 B
- examples/searchProducts.example.json 274 B
- manifest.json 450 B
- openapi.yaml 13 KB
- PROGRESS.md 5.5 KB
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.
- 4d ago First seen · 55 lines · 0 tokens per session scan A e284d2c2cf96
bestbuy is a skill published in the GitHub repository imoonkey/openweb (60 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 759 tokens. 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 2026-08-30.
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