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 40RTY-ai/shopify-admin-skills --skill shopify-admin-agentic-llms-txtgit clone --depth 1 https://github.com/40RTY-ai/shopify-admin-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/40rty-ai/shopify-admin-skills/shopify-admin-agentic-llms-txt)<a href="https://agentmods.dev/skills/40rty-ai/shopify-admin-skills/shopify-admin-agentic-llms-txt"><img src="https://agentmods.dev/badge/skills/40rty-ai/shopify-admin-skills/shopify-admin-agentic-llms-txt/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/40rty-ai/shopify-admin-skills/shopify-admin-agentic-llms-txt"><img src="https://agentmods.dev/badge/skills/40rty-ai/shopify-admin-skills/shopify-admin-agentic-llms-txt.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.01890 |
| Opus 5 | $0.00025 | $0.00945 |
| Sonnet 5 | $0.00010 | $0.00378 |
| Haiku 4.5 | $0.00005 | $0.00189 |
Grade A, and why
shopify-admin-agentic-llms-txt 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 12d 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 — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Purpose
llms.txt is the emerging convention for telling AI assistants, in plain text, what a site is and where the important pages live — a curated front door for models. This skill assembles an llms.txt from the store's own data (brand one-liner, top collections, flagship products with URLs, shipping/returns policy links, contact) and publishes it through a theme template so it's served at a stable path. Fixes llms-txt / well-known-llms-txt and the related agents-md discovery signals.
Prerequisites
- Authenticated Shopify CLI session (
shopify auth login --store <domain>) - Required API scopes:
read_products,read_themes,write_themes
Parameters
All skills accept these universal parameters:
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| store | string | yes | — | Store domain (e.g., mystore.myshopify.com) |
| format | string | no | human | Output format: human (default) or json |
| dry_run | bool | no | true | Preview the generated llms.txt without writing (defaults ON — edits the live theme) |
Skill-specific parameters:
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| theme_id | string | no | — | Theme GID (defaults to published MAIN theme) |
| flagship_count | int | no | 12 | How many top products to list |
| flagship_collection_id | string | no | — | Collection to draw the flagship list from (else best-sellers/recent) |
| brand_summary | string | no | — | Override the brand one-liner (else inferred from shop + homepage) |
Safety
⚠️ Step 4 (
themeFilesUpsert) writes a new template to the LIVE theme. The content is additive (a new file/route) and low-risk, but it is published immediately. Defaultsdry_run: trueso you review the generatedllms.txtfirst. Duplicating the theme before writing is recommended.
Workflow Steps
- OPERATION:
shop— query Inputs: none Expected output: Shop name, domain, contact email, policy URLs — the header + contact + policy section of llms.txt.
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.
- 12d ago First seen · 177 lines · 50 tokens per session scan A 6a1b6ade3f21
shopify-admin-agentic-llms-txt is a skill published in the GitHub repository 40RTY-ai/shopify-admin-skills (185 stars, last pushed 28d ago), licensed MIT. It adds 50 tokens to every session and 1,890 once invoked, about $0.0003 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 2026-08-30.
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