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 ciel-swift-and-ios-standardsgit 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/ciel-swift-and-ios-standards)<a href="https://agentmods.dev/skills/jxoesneon/ciel/ciel-swift-and-ios-standards"><img src="https://agentmods.dev/badge/skills/jxoesneon/ciel/ciel-swift-and-ios-standards/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/ciel-swift-and-ios-standards"><img src="https://agentmods.dev/badge/skills/jxoesneon/ciel/ciel-swift-and-ios-standards.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 | $0.00031 | $0.00558 |
| Opus 5 | $0.00015 | $0.00279 |
| Sonnet 5 | $0.00006 | $0.00112 |
| Haiku 4.5 | $0.00003 | $0.00056 |
Grade A, and why
ciel-swift-and-ios-standards 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: Swift & iOS Standards (The Apple Layer)
This skill formalizes modern Swift development. it prioritizes data-race safety and the Liquid Glass design language.
Approachable Concurrency (Swift 6.2+)
- Single-Threaded Default: Start on
MainActor. Async functions stay on the calling actor by default. - Isolated Conformances: Conforming MainActor types to protocols safely without
@Sendableworkarounds. - Explicit Parallelism: Use
@concurrentONLY for CPU-intensive background tasks (e.g., image processing). - Static State: Protect all global/static variables with
MainActoror actor isolation.
Actor-Based Persistence
- Repository: Use
actorfor serialized access to local data. - In-Memory Cache: Maintain a dictionary for O(1) lookups; persist to disk atomically on write.
- Hard Gate: ALWAYS use
.atomicwrites to prevent file corruption. - Initialization: Load cache synchronously in
initto avoid async lifecycle complexity.
Liquid Glass Design (iOS 26+)
- Container First: Wrap multiple glass elements in a
GlassEffectContainerfor performance and morphing. - Interactivity: Use
.interactive()only on touch/pointer targets. - Transitions: Use
@Namespace+glassEffectIDfor smooth morphing on view hierarchy changes.
Anti-Patterns
- Implicit Offloading: Assuming async functions run in the background (they stay on the caller in 6.2).
- DispatchQueue Overuse: Using legacy queues instead of actors for new thread-safe state.
- Opaque Glass: Placing opaque backgrounds behind glass elements (destroys the translucency effect).
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 · 52 lines · 31 tokens per session scan A 0faf3cf5fe52
ciel-swift-and-ios-standards is a skill published in the GitHub repository jxoesneon/Ciel (1 stars, last pushed 5d ago), licensed Apache-2.0. It adds 31 tokens to every session and 558 once invoked, about $0.0002 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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