skills-from-the-artificer: Instructions file for GitHub Copilot

swift-agents/.github/copilot-instructions.md

skills-from-the-artificer copilot-instructions.md is an instructions file for GitHub Copilot from The-Artificer-of-Ciphers-LLC/skills-from-the-artificer. It costs 551 tokens per session, scanned A, original, MIT.

A set of project instructions that routes Swift and Apple-platform work through a Swift lead and specialist agents. It also lists review requirements for areas such as security, concurrency, testing, and app submission.

In plain words
What is it for?
Use it as Copilot guidance when working on Swift, SwiftUI, UIKit, Apple platform apps, machine learning, credentials, testing, or App Store submission.
Why use it?
It provides shared rules for a repository so related tasks follow the same delegation and review process.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is The-Artificer-of-Ciphers-LLC/skills-from-the-artificer's own configuration. It tells GitHub Copilot how to work on skills-from-the-artificer itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything skills-from-the-artificer configures →

Reuse

Borrowing it

Nothing to install: this file belongs to The-Artificer-of-Ciphers-LLC/skills-from-the-artificer. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/The-Artificer-of-Ciphers-LLC/skills-from-the-artificer/main/swift-agents/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/The-Artificer-of-Ciphers-LLC/skills-from-the-artificer

Made for: GitHub Copilot.

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Per session 551 This file is loaded in full into every session.
When invoked 551 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00551 $0.00551
Opus 5.5 $0.00220 $0.00220
Sonnet 5.5 $0.00110 $0.00110
Haiku 4.5 $0.00055 $0.00055

Measured today against content hash 51a3cd079ed1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skills-from-the-artificer copilot-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 today.

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.

swift-agents/.github/copilot-instructions.md · 30 lines

How it starts

The opening of the file, as written. The whole thing — 30 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Swift Agents — Copilot Instructions

Before proceeding with any task involving Swift code, SwiftUI views, UIKit views, async/await, actors, Sendable, @MainActor, Foundation Models, MLX, Core ML, coremltools, model conversion, MLXLLM, MLXVLM, MLXLMCommon, LLMModelFactory, ChatSession, GenerateParameters, LoRA, Hugging Face models, Keychain, CryptoKit, biometric auth, App Store submission, testing, SwiftData, @Model, ModelContainer, @Query, persistence, schema migration, visionOS, RealityKit, ARKit, immersive spaces, spatial computing, StoreKit, in-app purchases, subscriptions, Product, Transaction, performance profiling, Instruments, MetricKit, hang detection, launch time, memory optimization, Meta Wearables DAT, or any iOS/macOS/visionOS application code:

  1. Switch to the swift-lead agent
  2. The swift-lead will determine which specialist agents are needed
  3. Do NOT write SwiftUI code without mobile-a11y-specialist review
  4. Do NOT write concurrent code without concurrency-specialist review
  5. Do NOT handle credentials or encryption without swift-security-specialist review
  6. Do NOT submit to App Store without app-review-guardian review
  7. Do NOT convert or optimize ML models without coreml-specialist review
  8. Do NOT use MLX Swift, MLXLLM, or MLXVLM without mlx-specialist review
  9. Do NOT write SwiftData models or queries without swiftdata-specialist review
  10. Do NOT build visionOS or RealityKit features without visionos-specialist review
  11. Do NOT implement in-app purchases without storekit-specialist review
  12. Do NOT optimize performance without performance-specialist review

Critical Rules

  • For NEW projects or features: Enter plan mode FIRST. Design architecture before writing code.
  • NEVER create mock, placeholder, or stub implementations. All code must be real and functional.
  • Use built-in SwiftUI features instead of building custom replacements.
  • Settings screens MUST use Form { Section { Toggle/Picker/Stepper } }. Not custom VStacks.
  • macOS preferences MUST use the Settings { } scene. Not a custom window.
  • Persistence MUST use @AppStorage for UserDefaults. Not manual UserDefaults.standard calls.
  • Use .searchable, .refreshable, PhotosPicker, ShareLink, SubscriptionStoreView, .confirmationDialog.
  • Use Swift compiler synthesis (Codable, Equatable, Hashable) instead of manual implementations.

Read the full file on GitHub · 30 lines

Changes

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.

  1. today First seen · 30 lines · 551 tokens per session scan A 51a3cd079ed1

Subscribe to this mod's changes

skills-from-the-artificer copilot-instructions.md is an instructions file published in the GitHub repository The-Artificer-of-Ciphers-LLC/skills-from-the-artificer (6 stars, last pushed yesterday), licensed MIT. It adds 551 tokens to every session, about $0.0022 per session on Opus 5.5. 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 2026-10-15.

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