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 instructions/dev-lou/pixelpilot/uiux-motiongit clone --depth 1 https://github.com/dev-lou/PixelPilotWhat 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 | $0.05965 | $0.05965 |
| Opus 5 | $0.02982 | $0.02982 |
| Sonnet 5 | $0.01193 | $0.01193 |
| Haiku 4.5 | $0.00596 | $0.00596 |
Grade A, and why
PixelPilot uiux-motion.instructions.md 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.
How it starts
The opening of the file, as written. The whole thing — 570 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI/UX Motion, Animation & Loading States 2026
Per-language animation systems, GSAP vs CSS decision rules, spring physics, kinetic typography, skeleton UX, loading states, view transitions, performance tiers.
THE GOLDEN RULE — Performance First
Only ever animate transform and opacity. These are GPU-composited — zero layout
reflow, zero paint, zero jank. Everything else causes dropped frames.
S-Tier (GPU, 60fps): transform, opacity
C-Tier (use sparingly): filter, clip-path, border-radius
D-Tier (NEVER animate): width, height, top, left, padding, margin, background-color*
*background-color is fine for micro-interactions but not continuous/looping animations
DECISION TREE — CSS vs GSAP vs Motion
Need animation?
├─ Simple state (hover, focus, show/hide, toggle)?
│ └─ CSS transition — always. Zero overhead.
├─ Entrance on scroll?
│ ├─ Vanilla → AOS (in CDN) or CSS scroll-timeline
│ └─ React → Motion whileInView
├─ Complex sequence / stagger / timeline?
│ └─ GSAP timeline
├─ height:auto expand/collapse (accordion)?
│ └─ GSAP — CSS literally cannot do height:auto
├─ Scroll cinematic (parallax, pin, scrub)?
│ └─ GSAP + ScrollTrigger
├─ React page/route transition?
│ └─ View Transitions API or Motion AnimatePresence
└─ Physics spring (bouncy, drag)?
└─ CSS spring easing or Motion (React)
PER-LANGUAGE ANIMATION SYSTEM
Token Values by Language
| Token | Luxury | Premium | Minimalist | Expressive | Warm | Technical |
|---|---|---|---|---|---|---|
--dur-micro |
150ms | 100ms | 80ms | 60ms | 120ms | 60ms |
--dur-base |
500ms | 300ms | 250ms | 180ms | 350ms | 150ms |
--dur-slow |
900ms | 600ms | 500ms | 300ms | 700ms | 250ms |
| Spring/bounce? | Never | Subtle | Never | Strong | Medium | Never |
| Stagger delay | 120ms | 60ms | 80ms | 40ms | 80ms | 20ms |
| Entrance travel | 32px | 20px | 12px | 16px | 20px | 8px |
| Entrance blur | 0px | 0px | 0px | 8px | 0px | 0px |
| Kinetic type? | Slow reveal | Subtle | No | Fast scramble | No | No |
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 · 570 lines · 5,965 tokens per session scan A 67f7be8283a1
PixelPilot uiux-motion.instructions.md is an instructions file published in the GitHub repository dev-lou/PixelPilot (2 stars, last pushed 4mo ago), licensed MIT. It adds 5,965 tokens to every session, about $0.0298 per session on Opus 5. 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 2026-08-31.
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