gatsby-config

gatsby-config is a cursor rule for Cursor from AdobeDocs/ff-services-docs. It costs 13 tokens per session (2,615 once invoked), scanned A, original, Apache-2.0.

A set of instructions for configuring navigation in Gatsby, a tool for building websites from files and data. It explains how to define top-level links and dropdown menus in `gatsby-config.js`.

In plain words
What is it for?
Use it when adding or changing main navigation links, API reference versions, or dropdown menus in a Gatsby site.
Why use it?
It reduces guesswork when changing a site's menus and helps keep navigation entries in the format expected by the site's theme.

Cursor rule for Cursor

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/adobedocs/ff-services-docs/gatsby-config
Clone the repo
git clone --depth 1 https://github.com/AdobeDocs/ff-services-docs

Made for: Cursor.

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 gatsby-config

README.md
[![agentmods](https://agentmods.dev/badge/rules/adobedocs/ff-services-docs/gatsby-config.svg)](https://agentmods.dev/rules/adobedocs/ff-services-docs/gatsby-config)
Your own site
<a href="https://agentmods.dev/rules/adobedocs/ff-services-docs/gatsby-config"><img src="https://agentmods.dev/badge/rules/adobedocs/ff-services-docs/gatsby-config.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,615 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00013 $0.02615
Opus 5 $0.00006 $0.01307
Sonnet 5 $0.00003 $0.00523
Haiku 4.5 $0.00001 $0.00262

Measured 5d ago against content hash 48fcaafca752, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

gatsby-config 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 5d 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.

.cursor/rules/gatsby-config.mdc · 474 lines

How it starts

The opening of the file, as written. The whole thing — 474 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Gatsby Configuration Navigation Rules

Overview

This rule documents the navigation patterns and best practices for the @adobe/gatsby-theme-aio theme in Gatsby configuration. Use these patterns to create and modify navigation structures in gatsby-config.js.

1. Top Navigation (pages array)

pages: [
  {
    title: "Page Title",    // Required: Display name in top nav
    path: "/path/",        // Required: URL path
  }
]
  • Used for main navigation bar items
  • Limited to 5-7 items for clean UX
  • Each item requires both title and path
  • No nesting allowed by default (but see Menus below)
Top Navigation Dropdown Menus

You can create dropdown menus in the Global Navigation (header bar) by using the menu field instead of path:

pages: [
  {
    title: 'Adobe Analytics',
    path: 'index.md'
  },
  {
    title: 'Guides',
    path: 'guides.md'
  },
  {
    title: 'API Reference',
    menu: [{
      title: 'v2.0',
      description: 'Version 2.0 of API', // optional
      path: '2.0/api.index'
    }, {
      title: 'v1.4',
      description: 'Version 1.4 of API', // optional
      path: '1.4/api.index'
    }]
  }
]

Key Points:

  • Use menu field instead of path to create a Global navigation dropdown
  • Each menu item requires title and path
  • description is optional but helpful for differentiating items
  • Common use cases:
    • Multiple API versions
    • Language or framework variations
    • Related products or services
    • Documentation sets

2. Side Navigation (subPages array)

subPages: [
  {
    title: "Section Title",    // Required: Main section name
    path: "/section-path/",    // Required: Base URL for section
    header: true,             // Required: Makes it a main section
    pages: [                  // Required: Array of section items
      // Pattern A: Regular page
      {
        title: "Page Title",
        path: "/section-path/page/"
      },
      // Pattern B: Subsection with dropdown
      {
        title: "Subsection Title",
        path: "/section-path/subsection/",
        header: true,         // Creates subsection
        pages: [             // Creates dropdown
          {
            title: "Dropdown Item",
            path: "/section-path/subsection/item/"
          }
        ]
      }
    ]
  }
]

Read the full file on GitHub · 474 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. 5d ago First seen · 474 lines · 13 tokens per session scan A 48fcaafca752

Subscribe to this mod's changes

gatsby-config is a cursor rule published in the GitHub repository AdobeDocs/ff-services-docs (4 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 13 tokens to every session and 2,615 once invoked, about $0.0001 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.