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.
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.
curl -O https://raw.githubusercontent.com/SAP/fundamental-ngx/main/.windsurfrulesgit clone --depth 1 https://github.com/SAP/fundamental-ngxWrote 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/rules/sap/fundamental-ngx/windsurfrules)<a href="https://agentmods.dev/rules/sap/fundamental-ngx/windsurfrules"><img src="https://agentmods.dev/badge/rules/sap/fundamental-ngx/windsurfrules/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/rules/sap/fundamental-ngx/windsurfrules"><img src="https://agentmods.dev/badge/rules/sap/fundamental-ngx/windsurfrules.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00011 | $0.00011 |
| Opus 5.5 | $0.00004 | $0.00004 |
| Sonnet 5.5 | $0.00002 | $0.00002 |
| Haiku 4.5 | $0.00001 | $0.00001 |
Grade A, and why
windsurfrules 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 1mo 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.
This is a copy
100% identical to cursorrules — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Read and follow AGENTS.md for all development conventions.
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.
- 1mo ago First seen · 2 lines · 11 tokens per session scan A a8c60198e38d
windsurfrules is a cursor rule published in the GitHub repository SAP/fundamental-ngx (296 stars, last pushed yesterday), licensed Apache-2.0. It adds 11 tokens to every session, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to cursorrules, differing in 0 lines, and is treated as a copy.
Other cursor rules, from other repositories
windmill-overview
Windmill is an open-source developer platform for building internal tools, API integrations, background jobs, workflows, and user interfaces. It offers a unified system where scripts are automatically turned into sharable UIs and can be composed into flows or embedded in custom applications.
watch-radial-instruments
Source: docs/agents/watch-radial-instruments.md Regenerate: npm run agents:sync -w packages/openbridge-webcomponents -->.
building-blocks
Source: docs/agents/building-blocks.md Regenerate: npm run agents:sync -w packages/openbridge-webcomponents -->.
testing-visual
Source: docs/agents/testing-visual.md Regenerate: npm run agents:sync -w packages/openbridge-webcomponents -->.
figma-refresh
Source: docs/agents/figma-refresh.md Regenerate: npm run agents:sync -w packages/openbridge-webcomponents -->.
circular-charts
Source: docs/agents/circular-charts.md Regenerate: npm run agents:sync -w packages/openbridge-webcomponents -->.