Development

Programming, frameworks, implementation, frontend, backend, and app development

skills in category: 66,452
pages available: 2,769

Security grades appear on each card once the skill has been scanned. Newly imported skills may briefly show without a grade until the backfill job runs.

Open in full browser

Browse development skills

Showing 14,497–14,520 of 66,452 skills

Allocation ProfilingAAttribute Java heap allocation to code and validate reductions in bytes per operation. Use when allocation or GC frequency regresses, JFR allocation events are empty or disagree with counters, large buffers trigger G1 humongous collections or ZGC stalls, or pooling, TLAB tuning, or assumed JIT elimination is proposed without measurements. Covers sampling semantics and allocation-specific triage; general capture selection belongs to jfr-and-async-profiler, retention diagnosis to heap-dump-anal...developmentgojavaVotes: 0GitHub stars: 2
Adapter Sidecar PatternAChoose and review Kubernetes telemetry adapters when a legacy or vendor process emits incompatible metrics, logs or health signals, when deciding between per-pod translation and a node agent, or when an application upgrade silently changes parsed telemetry. Covers translation contracts, evidence-backed enrichment and failure behavior. Excludes in-process interface adaptation (gof-adapter), container mechanics (sidecar-pattern), probe configuration (kubernetes-service-lifecycle) and telemetry ...developmentgonodeVotes: 0GitHub stars: 2
BraveAUSE FOR web search. Returns ranked results with snippets, URLs, thumbnails. Supports freshness filters, SafeSearch, Goggles for custom ranking, pagination. Primary search endpoint.developmentpythonrustVotes: 0GitHub stars: 3
Subagent Conflict DetectionAUse before dispatching a subagent with `isolation:"worktree"`, or while another subagent is in flight, to avoid three dispatch hazards — file-scope overlap with an in-flight subagent, a stale dispatch base, and collisions with another live agent/session editing the same checkout or git-submodule path. Invoke when about to call the Agent tool with `isolation:"worktree"`; when another subagent is running; right after a merge or branch switch; or when another Claude session is editing a shared r...developmentrustgoVotes: 0GitHub stars: 18
Spec Phase OrchestrationARun the spec-first document phase of a project and gate implementation on it. Use when starting a project that needs a spec before code, deciding which documents the spec phase produces and in what order, choosing whether a section may advance while a prerequisite is unconfirmed, judging whether implementation code may start yet, or when asked "design or foundations first", "which documents go in the spec phase", "can we code before plan.md is approved". Does NOT own where stray ideas are par...developmentgoswiftVotes: 0GitHub stars: 18
Skill Authoring PatternsAThe Apple/Swift-and-this-catalog layer for authoring or reviewing a SKILL.md, on top of superpowers:writing-skills. Use when writing or CR-ing a skill for this repo, wording a description so it routes precisely, splitting a skill into references/, or choosing granularity and naming. Adds: precision-router descriptions with framework API names, the Common-Mistakes + Review-Checklist bookends, two-tier references/, the Rationale/Deviation convention, evidence-based multi-reviewer CR. Does NOT c...developmentgoswiftVotes: 0GitHub stars: 18
Skills DirectorySkills Directory 3 slots · $399/mo · one ad per page · sponsors can never buy grades.See placements
Pr Diff VerificationACheck that a branch's actual diff matches what its commit messages and any subagent report claim, before the commits leave the machine. Use before `git push` of a feature branch, before `gh pr create` or `gh pr merge`, after a subagent reports "committed N files", after an amend / rebase / force-push, or when a verification report's headline count looks off. Catches "commit log wrote but code didn't make it" accidents. Does NOT read the diff for correctness (that is a Code Reviewer's job) nor...developmentrustgoVotes: 0GitHub stars: 18
Leader Developer Handoff ContractAShape the prompt a Leader sends when dispatching a sub-agent (Developer, Designer, Code Reviewer, drafting agent) so the result comes back verifiable and integrable. Use when about to call the Agent tool, writing or reviewing a dispatch prompt, deciding what a sub-agent must read or which skills it must invoke, or when asked "what should the sub-agent prompt include" / "which element am I missing". Does NOT own how many review rounds to run or how findings are adjudicated (subagent-review-cyc...developmentgoswiftVotes: 0GitHub stars: 18
Claude Skill Plugin PackagingAPackage Claude Code skills as a plugin plus marketplace and install them into other repos — globally, pinned per project via committed settings, or as a skills-dir plugin. Use when sharing skills across repos, wiring an existing skill plugin into a project, choosing flat project skills versus a plugin, aggregating other people's skill repos by reference, or when a submodule or nested folder of skills is not being discovered. Does not cover PR/issue mechanics (github-contribution-workflow) or ...developmentrustgoVotes: 0GitHub stars: 18
Xcode Cloud Single Track CiAUse when setting up or changing CI for an Apple-platform project on Xcode Cloud — choosing Xcode Cloud vs GitHub Actions, splitting PR / Main / Release / scheduled workflows, writing `ci_scripts/ci_post_clone.sh` / `ci_pre_xcodebuild.sh` / `ci_post_xcodebuild.sh`, or wiring `CI_BUILD_NUMBER`, `MARKETING_VERSION`, `agvtool` numbering. Or asked "do I need dual-track CI", "main failed after the PR passed", "Xcode Cloud build number collides". Does NOT cover shipping a build by hand when Xcode Cl...developmentrustgoVotes: 0GitHub stars: 18
Telemetry Facade PatternADesign the app-side event pipeline that fans one `telemetry.observe(event)` call out to logging, tracking, MetricKit and Game Center sinks. Use when deciding whether Logger and analytics tracking share one interface; when adding a `TelemetrySink` / `MetricKitSink` / `GameCenterSink`; when a wired-looking sink never fires (score not submitted, achievement not unlocked, `GKLeaderboard.submitScore` unreached); when sink order or UI-blocking sink I/O matters. Does NOT choose the Logger API (oslog...developmentswiftapiVotes: 0GitHub stars: 18
Swiftui Navigation ArchitectureAWire SwiftUI navigation as data on the iOS 26 / macOS 26, Swift 6 baseline: one `@Observable @MainActor` Router in `.environment`, `NavigationStack(path:)` over a typed `Route` enum, `navigationDestination(for:)` at the stack root, `item:`-driven sheets and covers, `.onOpenURL` deep links, `NavigationSplitView`, per-tab paths, `Codable` restoration. Use when wiring an App''s navigation, choosing push vs sheet vs `fullScreenCover`, adding deep links or restoration, migrating off `NavigationVie...developmentgoswiftVotes: 0GitHub stars: 18
Swiftui Interaction FootgunsAChecklist of SwiftUI interaction bugs that pass code review but break at runtime: tap-target shrink under `.buttonStyle(.plain)`, inert sidebar `Label`s, `horizontalSizeClass` on Mac, `.task` re-fire, blank `fullScreenCover(isPresented:)` race, stale `dynamicTypeSize` in modals, `.tint` not propagating, `NSHostingView` environment. Use when reviewing a SwiftUI View for runtime interaction bugs (taps, navigation, lifecycle re-fire, presentation races) — a PR adding Button / NavigationLink / Ta...developmentrustgoVotes: 0GitHub stars: 18
Swiftpm ModularizationADefault module shape for Apple-platform Swift Apps — one Swift Package, multiple targets, a thin App target (`@main` + DI root), CloudKit / GameKit / StoreKit imports confined to service targets, one test target per production target. Use when laying out targets in Package.swift, deciding where a new module or framework import lives, planning core portability (Swift on Android), when `.xcassets` go missing in a package target, or when asked "single package or multi-package". Does NOT own `pla...developmentgoswiftVotes: 0GitHub stars: 18
Swift6 ConcurrencyASwift 6 language mode with complete concurrency checking from the first line of a new Apple-platform project; `MainActor` default isolation per the Xcode 26 template, `Sendable` only where a value crosses an isolation boundary; `@preconcurrency import` for lagging deps. Use when setting `swiftLanguageModes` / `swiftSettings` in Package.swift or SWIFT_STRICT_CONCURRENCY / default actor isolation in Xcode build settings, when a build setting or new dependency raises Sendable / isolation errors ...developmentgoswiftVotes: 0GitHub stars: 18
Swift Testing BaselineADefault test stack for new Apple-platform Swift projects — Swift Testing (`@Test` / `#expect`, no XCTest), pointfreeco/swift-snapshot-testing with baselines in git, CI policy for fakes (no live CKContainer / GKLocalPlayer / network in tests). Use when creating the first test target, choosing a snapshot framework or precision policy, deciding whether CI may touch iCloud / Game Center, when a SwiftPM test run hangs on a live CKContainer / GKLocalPlayer, when `swift build` passes but `swift test...developmentrustgoVotes: 0GitHub stars: 18
Swift Dependency InjectionADesign injectable seams so Swift services can be swapped for fakes in tests. Use when a type reaches for `URLSession.shared`, `Date()`, `UUID()`, `random(in:)` or a singleton; when asked "how do I inject CloudKit / network / clock" or "should this be a singleton"; when choosing constructor vs `@Environment` / `EnvironmentKey` vs `@TaskLocal` injection; when writing the `makeApp()` composition root; when evaluating swift-dependencies or Factory. Does NOT choose the test framework or snapshot t...developmentgoswiftVotes: 0GitHub stars: 18
Storekit2 Iap DefaultsADefault StoreKit 2 architecture for a single non-consumable IAP (Remove Ads, Pro Unlock): `StoreKitBridge` isolates `import StoreKit` to one Live file; launch-time `Transaction.updates`; `Transaction.currentEntitlements` for unlock state; `finish()` timing; `AppStore.sync()` restore; `.storekit` + Fake-bridge test seam. Invoke when adding IAP, wiring StoreKit 2, or asked "how do I unlock a purchase / restore purchases / test IAP". Does NOT cover subscriptions → apple-skills:storekit, or ad SD...developmentswifttestingVotes: 0GitHub stars: 18
Oslog Logger DefaultsASet up logging for an Apple-platform Swift app with `os.Logger` and decide its `subsystem` / `category` naming and `privacy:` interpolation. Use when choosing a logging library (`os.Logger` vs swift-log `import Logging` vs CocoaLumberjack); when writing the first `Logger(subsystem:category:)`; when deciding `.private` vs `.public` for a value; when asked what `.private` hides in Console.app, sysdiagnose, or `OSLogStore`. Does NOT cover `os_signpost` / Instruments profiling (ios-performance-en...developmentgoswiftVotes: 0GitHub stars: 18
Monetization Sdk IntegrationAUse when adding, upgrading, or auditing a third-party monetization SDK (AdMob / Google Mobile Ads incl. UMP consent; the same contract applies to any other ad or subscription SDK), or when a PR adds `import GoogleMobileAds` outside the single live-bridge file, breaks `canImport` / `.when(platforms: [.iOS])` gating, or lands without a Fake bridge. Owns the break-glass admission test, single-import-site isolation contract, and test seam. Does not cover native StoreKit 2 IAP (storekit2-iap-defau...developmentgoswiftVotes: 0GitHub stars: 18
Mise Tool ManagementAUse when pinning binary CLI / build tools (swiftlint, xcbeautify, gitleaks, lefthook) with mise so dev machines and CI share one `.mise.toml` — choosing mise vs asdf / Homebrew / manual, writing `.mise.toml` (`aqua:` / `github:` backends, `os = ["macos"]` guards), running `mise trust` / `mise install` / `mise exec` from `ci_post_clone.sh` or a fresh git worktree, or debugging "mise exec ignores .mise.toml in a new worktree", `unsupported env: linux/amd64`. Does NOT cover Xcode Cloud workflow ...developmentrustgoVotes: 0GitHub stars: 18
Local Archive Export UploadAUse when a build must reach TestFlight without Xcode Cloud (quota, outage, CI not wired yet), or when a local `xcodebuild archive` / `-exportArchive -exportOptionsPlist` / `xcrun altool --upload-package` command fails — `ExportOptions.plist` keys (`method`, `destination`, `teamID`, `manageAppVersionAndBuildNumber`), `-authenticationKeyPath` vs `-allowProvisioningUpdates`, `CFBundleVersion` colliding with Xcode Cloud''s counter. Temporary fallback for xcode-cloud-single-track-ci; does NOT cove...developmentgobashVotes: 0GitHub stars: 18
Ios Performance EngineeringAMeasure and fix iOS/macOS performance with Instruments (Time Profiler, Allocations, Hangs, App Launch), `xctrace` in CI, `OSSignposter`, MetricKit field telemetry (`MXMetricManager`, `MXHangDiagnostic`), `XCTMetric` baselines, launch time, memory footprint, binary size, and crash triage / symbolication (`MXCrashDiagnostic`, dSYM, `atos`). Use when diagnosing hangs or hitches measured with Instruments or MetricKit, high memory, slow launch, or a large binary, reading or symbolicating a crash r...developmentgoswiftVotes: 0GitHub stars: 18
Ios Design MockupAGenerate a single-file HTML iOS design mockup from a written spec (PRD / requirements / user stories) — a designer-style user-flow canvas: iPhone frames, SVG navigation arrows, a design-tokens panel. Use when asked to "turn this spec into a mockup", "show me the screens", "visualize this app", "make a Figma-like flow", or to communicate iOS designs to PMs/stakeholders without a working prototype. Not a clickable prototype, not Figma files, not SwiftUI/production code. Do NOT fire when merely ...developmentjavascriptjavaVotes: 0GitHub stars: 18