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.
npx agentmods add rules/lawofall/agentcore/desktop-layoutgit clone --depth 1 https://github.com/Lawofall/AgentCoreWhat 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 | $0.00000 | $0.00519 |
| Opus 5 | $0.00000 | $0.00260 |
| Sonnet 5 | $0.00000 | $0.00104 |
| Haiku 4.5 | $0.00000 | $0.00052 |
Grade A, and why
desktop-layout 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 yesterday.
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.
What it actually says
桌面端布局规范
完整规格（宽度梯度、padding、字体、圆角、按钮、图标） → UI-Pattern索引.md §桌面端布局规格。
速查
| 梯度 | Tailwind | 适用 |
|---|---|---|
| content | max-w-4xl mx-auto |
详情、表单 |
| canvas | max-w-[1200px] mx-auto |
列表、文件管理 |
| 对话页 | max-w-3xl mx-auto |
消息区 + 输入区（768px） |
| IM 会话列 | max-w-[52rem] mx-auto |
消息页右栏：消息区 + 输入区（832px；≠ 对话页 768px） |
自有布局豁免：对话页、文件页、设置页、全屏页、消息页两栏壳不走 content/canvas 梯度。消息页右栏内走 IM 会话列。
窄屏（<768px）：AppShell 收成底栏 4-tab + 对话 ☰ 抽屉 + 右坞全屏 sheet，不要把侧栏和 ≥280px 坞挤进主列。权威 → 前端技术 §五。字号仍 4 级：sm 14→16、base 16→17，xs/xl 不动（底栏、按钮、工具行保持密度）；.markdown-body 必须走 token。实现 → globals.css。
禁止
- 字号：禁
text-[10px]/text-[11px]/text-[13px]/text-lg及自定义像素值（4 级：xs/sm/base/xl）。 - 圆角：禁
rounded-sm/rounded-md/rounded-2xl/rounded-3xl（3 级：lg/xl/full）。
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.
- yesterday First seen · 29 lines · 0 tokens per session scan A 50cf50bd87ca
desktop-layout is a cursor rule published in the GitHub repository Lawofall/AgentCore (78 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 519 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 2026-08-30.
Other cursor rules, from other repositories
code-patterns
Python code style and recurring patterns (config, logging, errors, paths).
project-overview
Core project architecture, patterns, and conventions for the AI Documentation Generator.
cursorrules
You are an AI agent building the module: {{MODULENAME}} This module is part of the Mnemosyne Neural OS ecosystem by XPACEGEMS LLC.
backend-python
Python and FastAPI standards for the backend.
core-project-context
Canonical project context and ownership rules.
dashboard-typescript
React and TypeScript standards for the operator dashboard.