thirdparty-emil-design-eng git:20260923.68c095eA

Immutable. This exact content never changes and is served at /api/v1/blob/436273f4dc86bbac.

---
name: thirdparty-emil-design-eng
description: >
  Third-party skill — Emil Kowalski's design-engineering notes (animation
  craft, Sonner-style components). Use when the user names emil-design-eng or
  asks for that philosophy. Motion pass → enhance-motion.
---

# Design Engineering

> **Third-party skill** (upstream-maintained). See [ATTRIBUTION.md](ATTRIBUTION.md).
> Upstream: [emilkowalski/skills](https://github.com/emilkowalski/skills) · Local name: `thirdparty-emil-design-eng`

Before responding, read
[`references/emil-design-eng.md`](references/emil-design-eng.md) **in full**
and follow it as the authoritative playbook. It contains the required initial
response, review format, animation guidance, accessibility rules, and checklist.

The upstream body is kept in that single canonical reference file so future
syncs remain diff-able without loading 600+ lines into the routing surface.
Only local attribution links are adjusted for the reference location.