faststore-all

A combined set of coding guidance for VTEX FastStore, a framework for building online-store frontends with TypeScript and React. It covers components, CMS section overrides, backend-for-frontend code, styling, and workflow.

In plain words
What is it for?
Use it when starting FastStore work, writing React or TypeScript, creating section overrides, extending the backend-for-frontend layer, or styling pages.
Why use it?
It keeps FastStore changes aligned with the project's conventions and safety rules across different parts of a storefront.

Cursor rule

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 rules/vtex/skills/faststore-all
Clone the repo
git clone --depth 1 https://github.com/vtex/skills
Per session 69 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,373 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. Scan, not verified.
Origin unknown 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 $0.00069 $0.03373
Opus 5 $0.00034 $0.01687
Sonnet 5 $0.00014 $0.00675
Haiku 4.5 $0.00007 $0.00337

Measured 2d ago against content hash f3382272cd84, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

faststore-all scanned grade C with 1 finding 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 2d 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

- **If the `.faststore/` directory gets into a broken state** (e.g., after a failed GraphQL optimization), delete it with `rm -rf .faststore` and restart `yarn dev`. The CLI regenerates it from scratch.
exports/cursor/faststore-all.mdc · 176 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2d ago First seen · 176 lines · 69 tokens per session scan C f3382272cd84

Subscribe to this mod's changes

faststore-all is a cursor rule published in the GitHub repository vtex/skills (42 stars, last pushed 13d ago), with no licence file. It adds 69 tokens to every session and 3,373 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.