---
id: "nutlope-hallmark"
title: "hallmark"
creator: "Hassan El Mghari"
creator_url: "https://github.com/Nutlope"
url: "https://github.com/Nutlope/hallmark"
level: "intermediate"
level_max: "advanced"
category: "agents-ai-engineering"
subcategory: "agent-skills-protocols"
region: "US"
access: "free"
date_added: "2026-10-19"
resource_kind: "learning_resource"
verification_basis: "supplier-inventory-v2.4"
access_evidence: "Supplier-approved free inventory; not independently verified by this site."
domain_top: "Agents & AI engineering"
domain_sub: "agent skills & protocols"
source_type: "skill-library"
last_verified: "2026-10-19"
---

[Agents & AI engineering](/agents-ai-engineering/index.md)

# hallmark

by [Hassan El Mghari](https://github.com/Nutlope)

[Read the original →](https://github.com/Nutlope/hallmark)

Design skill for Claude Code, Cursor and Codex that tells the agent which visual and layout habits of AI-generated interfaces to avoid.

Level: [Intermediate–Advanced](/levels/index.md)
Category: [Agents & AI engineering](/agents-ai-engineering/index.md)
Tags: [agent-skills-protocols](/tags/agent-skills-protocols/index.md), [agents-ai-engineering](/tags/agents-ai-engineering/index.md)
Added: 2026-10-19
Last verified: 2026-10-19
Status: ok
Prerequisites: inferred: technical documentation default
Resource kind: learning_resource
Type: skill-library
Region: US
Original language: en
Access: free
Subcategory: [agent skills & protocols](/agents-ai-engineering/agent-skills-protocols/index.md)
Verification basis: Supplier-reported live check; no independent HTTP verification by this site.
Access evidence: Supplier-approved free inventory; not independently verified by this site.
Source domain: Agents & AI engineering
Source subdomain: agent skills & protocols
Supplier region label: US

Summary in our own words. Rights remain with the original creator. [Credit and correction policy](/about/index.md#credit-policy).

[Plain-text Markdown copy](/e/nutlope-hallmark/index.md)