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 skills add pproenca/dot-skills --skill ios-animationsgit clone --depth 1 https://github.com/pproenca/dot-skillsWrote 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.
[](https://agentmods.dev/skills/pproenca/dot-skills/ios-animations)<a href="https://agentmods.dev/skills/pproenca/dot-skills/ios-animations"><img src="https://agentmods.dev/badge/skills/pproenca/dot-skills/ios-animations/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.
<a href="https://agentmods.dev/skills/pproenca/dot-skills/ios-animations"><img src="https://agentmods.dev/badge/skills/pproenca/dot-skills/ios-animations.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00090 | $0.02494 |
| Opus 5 | $0.00045 | $0.01247 |
| Sonnet 5 | $0.00018 | $0.00499 |
| Haiku 4.5 | $0.00009 | $0.00249 |
Grade A, and why
ios-animations 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.
dot-skills — Airbnb iOS SwiftUI Animations Best Practices
Opinionated, strict animation craft guide for SwiftUI iOS 26 / Swift 6.2 apps. Contains 50 rules across 8 categories, prioritized by impact. Derived from Airbnb Engineering motion patterns, Apple WWDC sessions, and Apple Human Interface Guidelines. Mandates @Equatable on every animated view, motion tokens for all spring/timing values, and design system tokens for layout.
Mandated Architecture Alignment
This skill is designed to work alongside swift-ui-architect and ios-design-system. All code examples follow the same non-negotiable constraints:
@Equatablemacro on every view (Airbnb measured 15% scroll hitch reduction)@Observablefor complex animation state that involves business logic triggers@Statefor view-owned animation state (toggle booleans, drag offsets)- Design system tokens:
Spacing.xs/sm/md/lg,Radius.sm/md/lg— zero hardcoded layout numbers - Motion tokens:
Motion.standard/responsive/playful— zero scattered spring literals - Semantic colors:
.backgroundSurface,.accentPrimary— no raw Color literals in views - Feature animations remain presentation-only; data/network concerns stay in Data package
Scope & Relationship to Sibling Skills
This skill is the motion layer — it teaches how to BUILD fluid, performant animations. When loaded alongside sibling skills:
| Sibling Skill | Its Focus | This Skill's Focus |
|---|---|---|
swift-ui-architect |
Architecture (modular MVVM-C, route shells, protocol boundaries) | Animation architecture (motion tokens, spring selection, orchestration) |
ios-design-system |
Design system infrastructure (tokens, styles, governance) | Motion tokens and animated component patterns |
ios-hig |
HIG compliance patterns | Motion-specific HIG (reduce motion, spatial continuity) |
Out of scope: Designer-authored vector animations (use Lottie for After Effects exports). Complex UIKit transition controllers (see Airbnb's declarative transition framework). This skill covers programmatic SwiftUI animations only.
What ships with it
51 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- assets/templates/_template.md 1.1 KB
- metadata.json 1.9 KB
- references/_sections.md 2.7 KB
- references/content-numeric-text.md 4.5 KB
- references/content-scroll-transition.md 6.2 KB
- references/content-symbol-replace.md 6.4 KB
- references/content-text-renderer.md 6.1 KB
- references/content-visual-effect.md 6.0 KB
- references/craft-blur-bridge.md 6.8 KB
- references/craft-drawing-group.md 6.3 KB
- references/craft-geometry-group.md 7.6 KB
- references/craft-reduce-motion.md 7.7 KB
- references/craft-transaction-debug.md 8.5 KB
- references/feel-250ms-max.md 5.2 KB
- references/feel-asymmetric-enter-exit.md 6.0 KB
- references/feel-distance-proportional.md 6.1 KB
- references/feel-faster-better.md 6.4 KB
- references/feel-haptic-sync.md 7.2 KB
- references/feel-stagger-timing.md 8.0 KB
- references/gesture-interruptible.md 5.3 KB
- references/gesture-momentum-dismiss.md 6.9 KB
- references/gesture-projected-landing.md 6.1 KB
- references/gesture-rubber-band.md 4.3 KB
- references/gesture-scroll-drag-conflict.md 6.5 KB
- references/gesture-snap-points.md 6.3 KB
- references/gesture-state-transient.md 5.9 KB
- references/micro-button-press-scale.md 4.4 KB
- references/micro-haptic-pairing.md 5.5 KB
- references/micro-loading-phase.md 6.3 KB
- references/micro-long-press-fill.md 6.1 KB
- references/micro-symbol-effect.md 5.2 KB
- references/micro-toggle-bounce.md 5.8 KB
- references/orch-coordinated-entrance.md 6.3 KB
- references/orch-keyframe-animator.md 7.3 KB
- references/orch-phase-animator.md 6.8 KB
- references/orch-stagger-children.md 7.5 KB
- references/orch-timeline-view.md 6.4 KB
- references/spatial-hero-shared-element.md 11 KB
- references/spatial-matched-geometry.md 5.9 KB
- references/spatial-sheet-morph.md 9.1 KB
- references/spatial-tab-continuity.md 8.7 KB
- references/spatial-transition-origin.md 8.0 KB
- references/spatial-zoom-navigation.md 5.8 KB
- references/spring-bouncy-celebration.md 5.4 KB
- references/spring-completion-chaining.md 8.7 KB
- references/spring-custom-parameters.md 5.7 KB
- references/spring-motion-tokens.md 5.4 KB
- references/spring-never-linear.md 7.3 KB
- references/spring-smooth-default.md 4.3 KB
- references/spring-snappy-responsive.md 4.8 KB
- references/spring-velocity-preservation.md 6.5 KB
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.
- 5d ago First seen · 159 lines · 90 tokens per session scan A f95e3b603f94
ios-animations is a skill published in the GitHub repository pproenca/dot-skills (205 stars, last pushed 24d ago), licensed MIT. It adds 90 tokens to every session and 2,494 once invoked, about $0.0005 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 2026-09-03.
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