shopify-theme-builder AGENTS.md

shopify-theme-builder AGENTS.md is an instructions file for Codex, OpenCode from moVictor99/shopify-theme-builder. It costs 1,564 tokens per session, scanned A, original, MIT.

A shared instruction file for building Shopify Online Store 2.0 themes, the current format for editable Shopify storefront designs. It describes a staged workflow and rules for themes that merchants can manage in Shopify’s theme editor.

In plain words
What is it for?
Use it when creating or changing a Shopify theme. It guides the agent through the required phases, validation with Shopify’s theme checker, and supporting reliability checks.
Why use it?
It helps an agent avoid incomplete themes and common synchronization, link, color, and cart problems that may pass basic checks.

Instructions file for CodexOpenCode

Install

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.

agentmods
npx agentmods add instructions/movictor99/shopify-theme-builder/agents-md
Clone the repo
git clone --depth 1 https://github.com/moVictor99/shopify-theme-builder

Made for: Codex, OpenCode.

Wrote 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.

agentmods badge for shopify-theme-builder AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/movictor99/shopify-theme-builder/agents-md.svg)](https://agentmods.dev/instructions/movictor99/shopify-theme-builder/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/movictor99/shopify-theme-builder/agents-md"><img src="https://agentmods.dev/badge/instructions/movictor99/shopify-theme-builder/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,564 This file is loaded in full into every session.
When invoked 1,564 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.01564 $0.01564
Opus 5 $0.00782 $0.00782
Sonnet 5 $0.00313 $0.00313
Haiku 4.5 $0.00156 $0.00156

Measured 4d ago against content hash 2d97aa6a602f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

shopify-theme-builder AGENTS.md 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.

AGENTS.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — shopify-theme-builder

Cross-agent entry point (the agents.md convention, read automatically by OpenAI Codex, Cursor, Zed, Gemini CLI, and others). If you are a coding agent asked to build, generate, scaffold, or design a Shopify theme, follow the instructions here. They mirror SKILL.md (the native format for Claude Code / Claude apps) — both describe the same workflow.

You build production-grade, Online Store 2.0 (OS 2.0) Shopify themes that a non-technical merchant can run entirely from the theme editor, that pass shopify theme check with zero errors, and that meet Shopify Theme Store requirements. Do not generate the whole theme in one pass — move through the gated phases below and checkpoint with the user.

Read these when the relevant phase needs them (progressive disclosure)

  • SKILL.md — the full workflow, phase gates, and token vocabulary (start here).
  • references/reliability-and-sync.mdread this first. The import/sync landmines that pass theme-check but break the store (silently dropped sections, 404s, dead color schemes, broken add-to-cart). Enforced by scripts/validate_theme.py.
  • references/shopify-standards.md — official standards + Theme Store rules.
  • references/settings-control.md — the "100% theme-editor controllable" rulebook.
  • references/os2-architecture.md — JSON templates, sections, blocks, section groups.
  • references/design-tokens.md — settings_schema ↔ CSS custom properties.
  • references/liquid-patterns.md, references/i18n-rtl.md, references/accessibility.md, references/performance.md, references/seo-structured-data.md — the quality references.
  • references/interview.md — the Phase 0 question bank.
  • references/qa-checklist.md — the Phase 6 pass/fail checklist.
  • assets/theme-skeleton/ — the scaffold base to copy.
  • examples/section-hero.liquid — the reference section every new section copies.

Three hard constraints (never trade these away)

Read the full file on GitHub · 106 lines

Changes

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.

  1. 4d ago First seen · 106 lines · 1,564 tokens per session scan A 2d97aa6a602f

Subscribe to this mod's changes

shopify-theme-builder AGENTS.md is an instructions file published in the GitHub repository moVictor99/shopify-theme-builder (4 stars, last pushed 1mo ago), licensed MIT. It adds 1,564 tokens to every session, about $0.0078 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.