[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill:01M6JVE19BMNH18SVMS54JZ6P7":3,"skill-same:01M6JVE19BMNH18SVMS54JZ6P7":67},{"skillNo":4,"name":5,"nameZh":6,"description":7,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":16,"categories":17,"keywords":23,"publishedAt":37,"linkOnly":38,"markdownContent":39,"markdownBody":40,"frontMatter":41,"refName":43,"commitSha":44,"skillDirectory":45,"forksCount":46,"repositoryHtmlUrl":47,"repositoryHomepageUrl":48,"ownerHtmlUrl":49,"ownerBlogUrl":50,"ownerDescription":51,"updatedAt":52,"install":53,"resources":66},"01M6JVE19BMNH18SVMS54JZ6P7","swift-actor-persistence",null,"Thread-safe data persistence in Swift using actors — in-memory cache with file-backed storage, eliminating data races by design.","hashgraph-online\u002Fawesome-codex-plugins","hashgraph-online","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F160371962?v=4","01M6CNB6NRJVNNGN14TR01Q6D3","HOL (Hashgraph Online)","01M6JT1HSKKG9V68KQAQGBA7XP",1575,"Apache-2.0","https:\u002F\u002Fgithub.com\u002Fhashgraph-online\u002Fawesome-codex-plugins\u002Fblob\u002Fmain\u002Fplugins\u002FColin4k1024\u002Ftsp\u002Fskills\u002Fswift-actor-persistence\u002FSKILL.md",[18],{"categoryNo":19,"categoryName":20,"taxonomyType":21,"taxonomyTypeDesc":22},"01JBSEEDCAT000000000000015","视觉设计","SCENARIO","使用场景",[24,25,26,27,28,29,30,31,32,33,34,35,36],"swift","persistence","swift actor persistence","design","safe","memory","storage","file","cache","data","with","thread","in-memory","2026-11-10 10:12:30",false,"---\nname: swift-actor-persistence\ndescription: Thread-safe data persistence in Swift using actors — in-memory cache with file-backed storage, eliminating data races by design.\norigin: ECC\n---\n\n# Swift Actors for Thread-Safe Persistence\n\nPatterns for building thread-safe data persistence layers using Swift actors. Combines in-memory caching with file-backed storage, leveraging the actor model to eliminate data races at compile time.\n\n## When to Activate\n\n- Building a data persistence layer in Swift 5.5+\n- Need thread-safe access to shared mutable state\n- Want to eliminate manual synchronization (locks, DispatchQueues)\n- Building offline-first apps with local storage\n\n## Core Pattern\n\n### Actor-Based Repository\n\nThe actor model guarantees serialized access — no data races, enforced by the compiler.\n\n```swift\npublic actor LocalRepository\u003CT: Codable & Identifiable> where T.ID == String {\n    private var cache: [String: T] = [:]\n    private let fileURL: URL\n\n    public init(directory: URL = .documentsDirectory, filename: String = \"data.json\") {\n        self.fileURL = directory.appendingPathComponent(filename)\n        \u002F\u002F Synchronous load during init (actor isolation not yet active)\n        self.cache = Self.loadSynchronously(from: fileURL)\n    }\n\n    \u002F\u002F MARK: - Public API\n\n    public func save(_ item: T) throws {\n        cache[item.id] = item\n        try persistToFile()\n    }\n\n    public func delete(_ id: String) throws {\n        cache[id] = nil\n        try persistToFile()\n    }\n\n    public func find(by id: String) -> T? {\n        cache[id]\n    }\n\n    public func loadAll() -> [T] {\n        Array(cache.values)\n    }\n\n    \u002F\u002F MARK: - Private\n\n    private func persistToFile() throws {\n        let data = try JSONEncoder().encode(Array(cache.values))\n        try data.write(to: fileURL, options: .atomic)\n    }\n\n    private static func loadSynchronously(from url: URL) -> [String: T] {\n        guard let data = try? Data(contentsOf: url),\n              let items = try? JSONDecoder().decode([T].self, from: data) else {\n            return [:]\n        }\n        return Dictionary(uniqueKeysWithValues: items.map { ($0.id, $0) })\n    }\n}\n```\n\n### Usage\n\nAll calls are automatically async due to actor isolation:\n\n```swift\nlet repository = LocalRepository\u003CQuestion>()\n\n\u002F\u002F Read — fast O(1) lookup from in-memory cache\nlet question = await repository.find(by: \"q-001\")\nlet allQuestions = await repository.loadAll()\n\n\u002F\u002F Write — updates cache and persists to file atomically\ntry await repository.save(newQuestion)\ntry await repository.delete(\"q-001\")\n```\n\n### Combining with @Observable ViewModel\n\n```swift\n@Observable\nfinal class QuestionListViewModel {\n    private(set) var questions: [Question] = []\n    private let repository: LocalRepository\u003CQuestion>\n\n    init(repository: LocalRepository\u003CQuestion> = LocalRepository()) {\n        self.repository = repository\n    }\n\n    func load() async {\n        questions = await repository.loadAll()\n    }\n\n    func add(_ question: Question) async throws {\n        try await repository.save(question)\n        questions = await repository.loadAll()\n    }\n}\n```\n\n## Key Design Decisions\n\n| Decision | Rationale |\n|----------|-----------|\n| Actor (not class + lock) | Compiler-enforced thread safety, no manual synchronization |\n| In-memory cache + file persistence | Fast reads from cache, durable writes to disk |\n| Synchronous init loading | Avoids async initialization complexity |\n| Dictionary keyed by ID | O(1) lookups by identifier |\n| Generic over `Codable & Identifiable` | Reusable across any model type |\n| Atomic file writes (`.atomic`) | Prevents partial writes on crash |\n\n## Best Practices\n\n- **Use `Sendable` types** for all data crossing actor boundaries\n- **Keep the actor's public API minimal** — only expose domain operations, not persistence details\n- **Use `.atomic` writes** to prevent data corruption if the app crashes mid-write\n- **Load synchronously in `init`** — async initializers add complexity with minimal benefit for local files\n- **Combine with `@Observable`** ViewModels for reactive UI updates\n\n## Anti-Patterns to Avoid\n\n- Using `DispatchQueue` or `NSLock` instead of actors for new Swift concurrency code\n- Exposing the internal cache dictionary to external callers\n- Making the file URL configurable without validation\n- Forgetting that all actor method calls are `await` — callers must handle async context\n- Using `nonisolated` to bypass actor isolation (defeats the purpose)\n\n## When to Use\n\n- Local data storage in iOS\u002FmacOS apps (user data, settings, cached content)\n- Offline-first architectures that sync to a server later\n- Any shared mutable state that multiple parts of the app access concurrently\n- Replacing legacy `DispatchQueue`-based thread safety with modern Swift concurrency\n","# Swift Actors for Thread-Safe Persistence\n\nPatterns for building thread-safe data persistence layers using Swift actors. Combines in-memory caching with file-backed storage, leveraging the actor model to eliminate data races at compile time.\n\n## When to Activate\n\n- Building a data persistence layer in Swift 5.5+\n- Need thread-safe access to shared mutable state\n- Want to eliminate manual synchronization (locks, DispatchQueues)\n- Building offline-first apps with local storage\n\n## Core Pattern\n\n### Actor-Based Repository\n\nThe actor model guarantees serialized access — no data races, enforced by the compiler.\n\n```swift\npublic actor LocalRepository\u003CT: Codable & Identifiable> where T.ID == String {\n    private var cache: [String: T] = [:]\n    private let fileURL: URL\n\n    public init(directory: URL = .documentsDirectory, filename: String = \"data.json\") {\n        self.fileURL = directory.appendingPathComponent(filename)\n        \u002F\u002F Synchronous load during init (actor isolation not yet active)\n        self.cache = Self.loadSynchronously(from: fileURL)\n    }\n\n    \u002F\u002F MARK: - Public API\n\n    public func save(_ item: T) throws {\n        cache[item.id] = item\n        try persistToFile()\n    }\n\n    public func delete(_ id: String) throws {\n        cache[id] = nil\n        try persistToFile()\n    }\n\n    public func find(by id: String) -> T? {\n        cache[id]\n    }\n\n    public func loadAll() -> [T] {\n        Array(cache.values)\n    }\n\n    \u002F\u002F MARK: - Private\n\n    private func persistToFile() throws {\n        let data = try JSONEncoder().encode(Array(cache.values))\n        try data.write(to: fileURL, options: .atomic)\n    }\n\n    private static func loadSynchronously(from url: URL) -> [String: T] {\n        guard let data = try? Data(contentsOf: url),\n              let items = try? JSONDecoder().decode([T].self, from: data) else {\n            return [:]\n        }\n        return Dictionary(uniqueKeysWithValues: items.map { ($0.id, $0) })\n    }\n}\n```\n\n### Usage\n\nAll calls are automatically async due to actor isolation:\n\n```swift\nlet repository = LocalRepository\u003CQuestion>()\n\n\u002F\u002F Read — fast O(1) lookup from in-memory cache\nlet question = await repository.find(by: \"q-001\")\nlet allQuestions = await repository.loadAll()\n\n\u002F\u002F Write — updates cache and persists to file atomically\ntry await repository.save(newQuestion)\ntry await repository.delete(\"q-001\")\n```\n\n### Combining with @Observable ViewModel\n\n```swift\n@Observable\nfinal class QuestionListViewModel {\n    private(set) var questions: [Question] = []\n    private let repository: LocalRepository\u003CQuestion>\n\n    init(repository: LocalRepository\u003CQuestion> = LocalRepository()) {\n        self.repository = repository\n    }\n\n    func load() async {\n        questions = await repository.loadAll()\n    }\n\n    func add(_ question: Question) async throws {\n        try await repository.save(question)\n        questions = await repository.loadAll()\n    }\n}\n```\n\n## Key Design Decisions\n\n| Decision | Rationale |\n|----------|-----------|\n| Actor (not class + lock) | Compiler-enforced thread safety, no manual synchronization |\n| In-memory cache + file persistence | Fast reads from cache, durable writes to disk |\n| Synchronous init loading | Avoids async initialization complexity |\n| Dictionary keyed by ID | O(1) lookups by identifier |\n| Generic over `Codable & Identifiable` | Reusable across any model type |\n| Atomic file writes (`.atomic`) | Prevents partial writes on crash |\n\n## Best Practices\n\n- **Use `Sendable` types** for all data crossing actor boundaries\n- **Keep the actor's public API minimal** — only expose domain operations, not persistence details\n- **Use `.atomic` writes** to prevent data corruption if the app crashes mid-write\n- **Load synchronously in `init`** — async initializers add complexity with minimal benefit for local files\n- **Combine with `@Observable`** ViewModels for reactive UI updates\n\n## Anti-Patterns to Avoid\n\n- Using `DispatchQueue` or `NSLock` instead of actors for new Swift concurrency code\n- Exposing the internal cache dictionary to external callers\n- Making the file URL configurable without validation\n- Forgetting that all actor method calls are `await` — callers must handle async context\n- Using `nonisolated` to bypass actor isolation (defeats the purpose)\n\n## When to Use\n\n- Local data storage in iOS\u002FmacOS apps (user data, settings, cached content)\n- Offline-first architectures that sync to a server later\n- Any shared mutable state that multiple parts of the app access concurrently\n- Replacing legacy `DispatchQueue`-based thread safety with modern Swift concurrency\n",{"name":5,"origin":42,"description":7},"ECC","main","b0f0a87593c578a7898eccaf1b363f7f87c1f99b","plugins\u002FColin4k1024\u002Ftsp\u002Fskills\u002Fswift-actor-persistence",491,"https:\u002F\u002Fgithub.com\u002Fhashgraph-online\u002Fawesome-codex-plugins","https:\u002F\u002Fhol.org\u002Fplugins\u002Fbest-codex-plugins","https:\u002F\u002Fgithub.com\u002Fhashgraph-online","https:\u002F\u002Fhol.org","Open-source standards and developer tools for interoperable AI agents: discovery, identity, communication, payments, privacy and security.","2026-11-14 14:06:13",{"source":8,"skillName":5,"commands":54,"prompt":64,"zipAvailable":65},[55,58,61],{"tool":56,"command":57},"npx","npx skills add hashgraph-online\u002Fawesome-codex-plugins --skill swift-actor-persistence",{"tool":59,"command":60},"bunx","bunx skills add hashgraph-online\u002Fawesome-codex-plugins --skill swift-actor-persistence",{"tool":62,"command":63},"pnpm","pnpm dlx skills add hashgraph-online\u002Fawesome-codex-plugins --skill swift-actor-persistence","安装技能，技能地址：https:\u002F\u002Fgithub.com\u002Fhashgraph-online\u002Fawesome-codex-plugins\u002Fblob\u002Fmain\u002Fplugins\u002FColin4k1024\u002Ftsp\u002Fskills\u002Fswift-actor-persistence\u002FSKILL.md",true,[],[68,76,83,90,115,139],{"skillNo":69,"name":70,"nameZh":6,"description":71,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":72,"categories":73,"keywords":74,"publishedAt":75},"01M746ZWACVKMZ1BJXJZHYJSSX","migrate-to-e2e","Moves an existing Playwright, Cypress, Selenium, Appium, Detox, Maestro, or TesterArmy suite to e2e one slice at a time, with the old suite running beside the new one until each ported test is proven. Keeps a MIGRATION.md progress file so any later session resumes where the last stopped. Optionally plants a defect to show both suites catch it. Use for \u002Fmigrate-to-e2e, \"migrate our tests to e2e\", \"port these Maestro flows\", \"move our TesterArmy tests\", or when a project has an e2e config and an older suite still running.","https:\u002F\u002Fgithub.com\u002Fhashgraph-online\u002Fawesome-codex-plugins\u002Fblob\u002Fmain\u002Fplugins\u002Ftester-army\u002Fe2e\u002Fskills\u002Fmigrate-to-e2e\u002FSKILL.md",[],[],"2026-11-11 15:11:14",{"skillNo":77,"name":78,"nameZh":6,"description":79,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":80,"categories":81,"keywords":82,"publishedAt":75},"01M746ZPTAX1Q0FBKAB1CYND7E","e2e","Writes, runs, and debugs end-to-end tests for web and mobile apps with e2e, the agentic test runner, which mixes agent.act goals with exact locator assertions on a Playwright browser or an iOS or Android device. Also drives a project's running app live over the e2e MCP server to look at a screen, check a UI change, take a screenshot or record a video, and try a locator; and runs bug bashes, parallel e2e explore runs with each bug proven by a repro test. Use when a project depends on e2e or has an e2e.config.ts, when asked for end-to-end, browser, mobile, or agentic UI tests, to check a change in the running app, to QA or bug bash an app or branch, or when an e2e run fails.","https:\u002F\u002Fgithub.com\u002Fhashgraph-online\u002Fawesome-codex-plugins\u002Fblob\u002Fmain\u002Fplugins\u002Ftester-army\u002Fe2e\u002Fskills\u002Fe2e\u002FSKILL.md",[],[],{"skillNo":84,"name":85,"nameZh":6,"description":86,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":87,"categories":88,"keywords":89,"publishedAt":75},"01M746ZJN784HVHMDP9MQGCSGG","create-verification-skill","Generate a project-local verify-\u003Capp> skill on top of e2e, so any coding agent can launch the app, check it is worth driving, exercise a feature the way a user does, keep evidence, and bug bash it. Writes the skill, a feature map with one explore charter per feature, and proves it once. Use for \u002Fcreate-verification-skill, \"make a verification skill for this repo\", or when a project has no scripted way to prove UI behavior.","https:\u002F\u002Fgithub.com\u002Fhashgraph-online\u002Fawesome-codex-plugins\u002Fblob\u002Fmain\u002Fplugins\u002Ftester-army\u002Fe2e\u002Fskills\u002Fcreate-verification-skill\u002FSKILL.md",[],[],{"skillNo":91,"name":92,"nameZh":6,"description":93,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":94,"categories":95,"keywords":96,"publishedAt":37},"01M716A6ETNB9B1SQ3GXZC75VR","deja-search","deja-vu memory — search the user's past AI coding sessions with the deja CLI. Holds what they already settled and never wrote into the repo (naming rules, banned or already-tried tools, required checks before merge, preferred values, who owns what). Use before your first edit in a task, before you call a change done or ready to merge, before you recommend a tool, library, design or reviewer, before re-debugging an error that may already be solved, when they say 'didn't we fix this before', 'what did we decide about X' or 'I already have that', and before telling them something on this machine does not exist.","https:\u002F\u002Fgithub.com\u002Fhashgraph-online\u002Fawesome-codex-plugins\u002Fblob\u002Fmain\u002Fplugins\u002Fvshulcz\u002Fdeja-vu\u002Fskills\u002Fdeja-search\u002FSKILL.md",[],[97,98,99,100,101,29,102,103,104,27,105,106,107,108,109,110,111,112,113,114],"search","deja search","never","error","ready","re","decide","fix","debugging","when","you","done","reviewer","io","change","cli","merge","past",{"skillNo":116,"name":117,"nameZh":6,"description":118,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":119,"categories":120,"keywords":121,"publishedAt":37},"01M716A3J2W5SENSE9VGMXB375","deja-reflect","End-of-session reflection and memory curation with deja-vu. Review what was decided, what commands broke and what repaired them, and record durable project rules or decisions with deja remember so the next session starts with them.","https:\u002F\u002Fgithub.com\u002Fhashgraph-online\u002Fawesome-codex-plugins\u002Fblob\u002Fmain\u002Fplugins\u002Fvshulcz\u002Fdeja-vu\u002Fskills\u002Fdeja-reflect\u002FSKILL.md",[],[122,123,124,110,34,125,126,127,128,129,130,131,132,133,29,134,135,136,137,138],"deja reflect","reflect","review","record","github","next","https","node","Rules","decisions","brew","remember","project rules","project","session","end","reflection",{"skillNo":140,"name":141,"nameZh":6,"description":142,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":143,"categories":144,"keywords":154,"publishedAt":37},"01M715T3RR4BAYSR57HPPTJ0PF","revid","Make, edit, export and post AI videos with Revid (revid.ai) through the Revid MCP server. Use whenever the user wants a short-form or long-form video made (from an idea, a script, a URL, an article, a PDF, a tweet, a product page, their own clips, or a song), wants to find what is going viral on TikTok, YouTube, Instagram or X before making something, wants to edit or re-export an existing Revid project, generate a standalone AI image or clip, make a series episode, or publish and schedule a finished video to connected social accounts. Covers setup (hosted MCP with OAuth, or an API key), the 36 tools, credits, polling and the rules for publishing. Routes to the more specific revid-* skills when one fits.","https:\u002F\u002Fgithub.com\u002Fhashgraph-online\u002Fawesome-codex-plugins\u002Fblob\u002Fmain\u002Fplugins\u002Ftmakersas\u002Frevid-skills\u002Fskills\u002Frevid\u002FSKILL.md",[145,148,151],{"categoryNo":146,"categoryName":147,"taxonomyType":21,"taxonomyTypeDesc":22},"01JBSEEDCAT000000000000016","图像与多媒体",{"categoryNo":149,"categoryName":150,"taxonomyType":21,"taxonomyTypeDesc":22},"01JBSEEDCAT000000000000023","Skill与智能体开发",{"categoryNo":152,"categoryName":153,"taxonomyType":21,"taxonomyTypeDesc":22},"01JBSEEDCAT000000000000010","后端与接口",[141,155,156,157,158,159,160,135,161,102,162,163,164,165,106,166,167,168,169,170],"URL","Video","short-form","standalone","PDF","viral","tiktok","short","social","MCP","song","image","mcp server","schedule","api","publish"]