fundamental-ngx: Instructions file for Claude Code

CLAUDE.md

fundamental-ngx CLAUDE.md is an instructions file for Claude Code from SAP/fundamental-ngx. It costs 2,765 tokens per session, scanned A, original, Apache-2.0.

A set of development rules for Fundamental NGX, an Angular component library, in an Nx monorepo—a single repository containing multiple related projects. It describes the library areas, naming conventions, dependencies, and validation commands.

In plain words
What is it for?
Use it when developing or validating Fundamental NGX components, utilities, forms, documentation, or generated UI5 wrappers. It is also useful for changes spanning the repository’s core, platform, business, customer-experience, or internationalization libraries.
Why use it?
It helps an agent place changes in the correct library and respect the allowed dependency direction. It also gives project-specific guidance for building, linting, testing, and checking only affected code.

Instructions file for Claude Code ✓ vendor

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths.

This is SAP/fundamental-ngx's own configuration. It tells Claude Code how to work on fundamental-ngx itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything fundamental-ngx configures →

About the project

Fundamental Library for Angular is an SAP-maintained Angular component library implementing SAP's design system and wrapping UI5 Web Components. Angular developers use its typed UI components and higher-level composites to build SAP-style web interfaces. Catalogue entries provide skills, agents, instructions, and a rule for working with the library.

SAP/fundamental-ngx · 294 stars · on GitHub · sap.github.io

Reuse

Borrowing it

Nothing to install: this file belongs to SAP/fundamental-ngx. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/SAP/fundamental-ngx/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/SAP/fundamental-ngx

Made for: Claude Code.

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README.md
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Per session 2,765 This file is loaded in full into every session.
When invoked 2,765 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.02765 $0.02765
Opus 5 $0.01383 $0.01383
Sonnet 5 $0.00553 $0.00553
Haiku 4.5 $0.00277 $0.00277

Measured 8d ago against content hash 0b9101f29911, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

fundamental-ngx CLAUDE.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 8d 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.

CLAUDE.md · 171 lines

How it starts

The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Fundamental NGX

Angular component library (Angular 22+, NX monorepo, Yarn 4). All components standalone by default.

Architecture

NX monorepo with publishable libraries:

Library Scope tag Prefix Purpose
libs/core scope:fd fd- Base UI components (button, dialog, card, calendar, etc.)
libs/platform scope:fdp fdp- Higher-level composites built on core
libs/cdk scope:cdk fdk- Utilities, forms, data-source abstractions
libs/btp scope:fdb fdb- Business Technology Platform components
libs/cx scope:cx cx- Customer Experience components
libs/i18n scope:i18n Internationalization (signal-based)
libs/datetime-adapter scope:datetime-adapter Date/time adapters
libs/ui5-webcomponents* scope:ui5 ui5- Generated Angular wrappers for UI5 Web Components
apps/docs scope:docs Documentation / showcase app

Dependency rules (enforced by nx-enforce-module-boundaries):

  • cdk has no library deps (base layer)
  • core depends on cdk, i18n
  • platform depends on core, cdk, i18n
  • btp, cx depend on core, platform, cdk
  • ui5-* depends on ui5-webcomponents-base only
  • docs can import everything

Commands

# Build / lint / test a library
nx run <library>:build
nx run <library>:lint
nx run <library>:test --testfile=<filename>.spec.ts

# Affected only (prefer this for validation)
nx affected:build
nx affected:lint
nx affected:test

# Format code (run after finishing code changes)
yarn format

# Serve docs app
yarn start

# Clear NX cache if stale
nx reset

# E2E / integration tests (see docs/e2e-testing.md)
npx playwright test                    # Run all
npx playwright test --grep "core/button"    # Run specific
npx playwright show-report             # View results

Read the full file on GitHub · 171 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. 8d ago First seen · 171 lines · 2,765 tokens per session scan A 0b9101f29911

Subscribe to this mod's changes

fundamental-ngx CLAUDE.md is an instructions file published in the GitHub repository SAP/fundamental-ngx (294 stars, last pushed 2d ago), licensed Apache-2.0. It adds 2,765 tokens to every session, about $0.0138 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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