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.
git clone --depth 1 https://github.com/jameywarren/shopify-claude-quickstartWrote 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/commands/jameywarren/shopify-claude-quickstart/add-metafield-to-pdp)<a href="https://agentmods.dev/commands/jameywarren/shopify-claude-quickstart/add-metafield-to-pdp"><img src="https://agentmods.dev/badge/commands/jameywarren/shopify-claude-quickstart/add-metafield-to-pdp/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/commands/jameywarren/shopify-claude-quickstart/add-metafield-to-pdp"><img src="https://agentmods.dev/badge/commands/jameywarren/shopify-claude-quickstart/add-metafield-to-pdp.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 | $0.00009 | $0.00184 |
| Opus 5 | $0.00005 | $0.00092 |
| Sonnet 5 | $0.00002 | $0.00037 |
| Haiku 4.5 | $0.00001 | $0.00018 |
Grade A, and why
add-metafield-to-pdp 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 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.
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.
What it actually says
I want to display the metafield $ARGUMENTS on the product page.
Steps:
- Locate the product detail section in
store-data/theme/sections/(typicallymain-product.liquid) - Determine the best place to render this metafield based on its type and what the brief says about PDP priority
- Show me the exact Liquid code to insert and the line where it goes
- If the section schema needs an addition (toggle to show/hide, label override), include that
- Validate the Liquid via
shopify-plugin:shopify-liquidbefore showing me
Then output the themeFilesUpsert mutation that writes the modified section, validated by shopify-plugin:shopify-admin. Do not execute until I confirm.
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 · 16 lines · 9 tokens per session scan A 03df7fd7093e
add-metafield-to-pdp is a command published in the GitHub repository jameywarren/shopify-claude-quickstart (2 stars, last pushed 4mo ago), licensed MIT. It adds 9 tokens to every session and 184 once invoked, about $0.0000 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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