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 jxoesneon/Ciel --skill swiftui-patternsgit clone --depth 1 https://github.com/jxoesneon/CielWrote 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/jxoesneon/ciel/swiftui-patterns)<a href="https://agentmods.dev/skills/jxoesneon/ciel/swiftui-patterns"><img src="https://agentmods.dev/badge/skills/jxoesneon/ciel/swiftui-patterns/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/jxoesneon/ciel/swiftui-patterns"><img src="https://agentmods.dev/badge/skills/jxoesneon/ciel/swiftui-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00022 | $0.00521 |
| Opus 5 | $0.00011 | $0.00260 |
| Sonnet 5 | $0.00004 | $0.00104 |
| Haiku 4.5 | $0.00002 | $0.00052 |
Grade A, and why
swiftui-patterns 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 9d 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.
What it actually says
CIEL ADAPTATION: SwiftUI Patterns (Declarative UI)
This skill formalizes the use of the Observation framework and type-safe navigation in modern SwiftUI.
State Management (The Modern Way)
- Shared Model: Use
@Observableclasses. ReplaceObservableObjectand@Published. - ViewModel: Create view models as
@Statein the parent view that owns the data. - Binding: Use
@Bindablefor two-way bindings to@Observableproperties. - Environment: Use
.environment(object)to inject shared dependencies.
View Composition
- Fine-Grained Invalidation: Break views into small structs. SwiftUI only re-renders the subview reading the changed property.
- ViewModifier: Encapsulate reusable styling (e.g.,
.cardStyle()) in modifiers. - Type-Safe Navigation: Use
NavigationStackwith aHashabledestination enum andNavigationPath.
Performance Mandates
- Lazy Containers: Use
LazyVStackandLazyHStackfor large collections. - Stable IDs: Always use stable, unique IDs in
ForEach(avoid array indices). - No I/O in Body: Never perform heavy computation or network calls inside the
bodyproperty. Use.task {}.
Anti-Patterns
- AnyView Abuse: Using
AnyViewinstead of@ViewBuilderorGroup. - Async Drift: Putting async work in
init()instead of.task {}. - ObservableObject Legacy: Using
ObservableObjectin new iOS 17+ codebases.
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.
- 9d ago First seen · 51 lines · 22 tokens per session scan A 09400f06c524
swiftui-patterns is a skill published in the GitHub repository jxoesneon/Ciel (1 stars, last pushed 5d ago), licensed Apache-2.0. It adds 22 tokens to every session and 521 once invoked, about $0.0001 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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