ui-data-edge-cases

ui-data-edge-cases is a cursor rule for Cursor from zerx-lab/FluxDown. It costs 0 tokens per session (204 once invoked), scanned A, original, AGPL-3.0.

A set of interface rules for displaying real user and device data, such as paths, filenames, URLs, and numbers, across four platforms.

In plain words
What is it for?
It is for checking UI edge cases involving user, host, and device information.
Why use it?
It helps catch layout and formatting problems caused by unusual values or differences between operating systems.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit It is for checking UI edge cases involving user, host, and device information.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/zerx-lab/fluxdown/ui-data-edge-cases
About the project

FluxDown is a free, open-source download manager built with Rust that handles web downloads, FTP, BitTorrent, eD2K, and HLS or DASH streams. It is for people who want resumable, browser-integrated downloads with a local desktop interface, and its built-in MCP server lets AI clients manage those downloads.

zerx-lab/FluxDown · 5,385 stars · on GitHub · fluxdown.com

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.

Clone the repo
git clone --depth 1 https://github.com/zerx-lab/FluxDown

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 ui-data-edge-cases

README.md
[![agentmods](https://agentmods.dev/badge/rules/zerx-lab/fluxdown/ui-data-edge-cases/github.svg)](https://agentmods.dev/rules/zerx-lab/fluxdown/ui-data-edge-cases)
Your own site
<a href="https://agentmods.dev/rules/zerx-lab/fluxdown/ui-data-edge-cases"><img src="https://agentmods.dev/badge/rules/zerx-lab/fluxdown/ui-data-edge-cases/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.

agentmods 80×15 button for ui-data-edge-cases

Your own site · 80×15
<a href="https://agentmods.dev/rules/zerx-lab/fluxdown/ui-data-edge-cases"><img src="https://agentmods.dev/badge/rules/zerx-lab/fluxdown/ui-data-edge-cases.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 204 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00000 $0.00204
Opus 5.5 $0.00000 $0.00082
Sonnet 5.5 $0.00000 $0.00041
Haiku 4.5 $0.00000 $0.00020

Measured 4d ago against content hash a6a8c1555034, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ui-data-edge-cases 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.

.cursor/rules/ui-data-edge-cases.mdc · 12 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 4d ago First seen · 12 lines · 0 tokens per session scan A a6a8c1555034

Subscribe to this mod's changes

ui-data-edge-cases is a cursor rule published in the GitHub repository zerx-lab/FluxDown (5,385 stars, last pushed today), licensed AGPL-3.0. It costs nothing until one of its globs matches a file; then it loads 204 tokens. 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 2026-11-02.

Related

ui-data-edge-cases compared with cursor rules from other repositories

ui-data-edge-cases next to 6 cursor rules from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
ui-data-edge-caseszerx-lab/FluxDownCursor rule5.4ktodayAGPL-3.0A0Cursor
ponytailDietrichGebert/ponytailCursor rule185k8d agoMITA604Cursor
angular-20angular/angularCursor rule101kyesterdayMITA0Cursor
dev-standardapache/supersetCursor rule75ktodayApache-2.0A1,147Cursor
prefer-direct-imports-over-module-mocksprisma/ormCursor rule48kyesterdayApache-2.0A0Cursor
config-validation-and-normalizationprisma/ormCursor rule48kyesterdayApache-2.0A0Cursor
control-plane-descriptorsprisma/ormCursor rule48kyesterdayApache-2.0A0Cursor