Plugin Claude Code
Portable engineering harness: 7 tiered subagents and 19 atomic skills for Swift/Apple-platform development, testing, code review, planning, architecture, security, and Xcode agentic workflows.
Instructions file CodexOpenCode
AGENTS.md instructions for g-cqd/skills, covering purpose, configuration, terms, role and goals.
Instructions file
Claude Code instructions for g-cqd/skills, a project described as: Engineering harness: 7 tiered subagents + 19 atomic Agent Skills (Swift/Apple-platform + language-agnostic) and one portable engineering standard for Claude Code, Codex, and Copilot.
Skill Claude CodeCodex
Language-agnostic algorithmic engineering: complexity analysis (time and space, worst case, average case, and amortized), data-structure selection (dynamic array, hash map and set, balanced BST and B-tree, queue, stack, ring buffer, binary heap, trie, graph adjacency list, rope, gap buffer), the algorithm families and…
Skill Claude CodeCodex
Apple platforms: primary-source lookup of Apple developer documentation through the apple-docs CLI and MCP server — DocC framework reference, Human Interface Guidelines, App Store Review Guidelines, Swift Evolution proposals, the Swift Book, WWDC session transcripts, sample code, SF Symbols, and Apple fonts. Use…
Skill Claude CodeCodex
Apple platforms: adopting platform frameworks and modernizing UIKit apps for multi-window. Framework adoption for the iOS 26 / macOS 26 SDK generation — Liquid Glass across SwiftUI, UIKit, AppKit and WidgetKit, Swift 6.2 features (InlineArray, Span, concurrency updates), Foundation Models and the on-device LLM, Visual…
Skill Claude CodeCodex
Language-agnostic code-review methodology, with platform-calibrated rule sets for iOS (Swift, SwiftUI) and Android (Kotlin, Compose). Generic core: the review priority order (correctness and safety, architecture and scope, naming and API design, idioms, access control and polish), a simplification-first lens that…
Skill Claude CodeCodex
Language-agnostic systematic debugging: reproduce deterministically, observe before theorizing, form falsifiable hypotheses one at a time, minimize the reproduction, bisect by commit or data or code path, identify a root cause you can state in one sentence, fix minimally, and lock it with a regression test. Includes…
Skill Claude CodeCodex
Language-agnostic development practice — how work is produced and delivered, as distinct from how it is judged. Covers disciplined catalog-based refactoring (extract, inline, rename, move, replace conditional with polymorphism) with the rule that structure and behavior never change in one commit, the rule of three for…
Skill Claude CodeCodex
Cross-platform graphics and rendering engineering, with an Apple-platform section covering Metal. Generic core: shader math, optical physics, light transport and the rendering equation, BRDF and BSDF models, Monte Carlo sampling and estimators, physically based rendering (PBR), coordinate systems and handedness…
Skill Claude CodeCodex
Language-agnostic memory safety, with an Apple-platform section covering the Swift unsafe surface and the C -fbounds-safety extension in full. Generic core: spatial and temporal violation classes (buffer overflow, out-of-bounds read/write, use-after-free or UAF, double-free, dangling stack pointers, uninitialized…
Skill Claude CodeCodex
Language-agnostic performance engineering: measurement-first methodology and the hardware substrate it measures. Covers profiling methodology, USE and RED triage, golden signals, latency percentiles and tail latency, coordinated omission, benchmarking discipline, performance budgets and load tests, caching, the…
Skill Claude CodeCodex
Language-agnostic planning, routing, and execution orchestration at any scale. Decomposes tasks, builds project roadmaps, orchestrates multi-phase parallel agent execution with locks and logging, formulates typed XML execution contracts, and dynamically routes requests to the best available skills. Also brokers second…
Skill Claude CodeCodex
Language-agnostic detection of a repository's own conventions, plus a template for encoding a team's: ticket and branch format, commit and PR etiquette, module structure and layering, design tokens and required components, test factory and mock conventions, localization rules, and off-limits areas. Use when starting…
Skill Claude CodeCodex
Language-agnostic secure coding and vulnerability review, with an Apple-platform section covering Keychain, CryptoKit, and ATS. Generic core is grounded in OWASP Top 10:2025, OWASP ASVS 5.0, and CWE Top 25 (2025): threat framing and trust boundaries, input validation and canonicalization, injection (SQL, shell, eval…
Skill Claude CodeCodex
Language-agnostic authoring and management of agent skills for any platform (Codex, Cursor, OpenCode, Gemini CLI, and 30+ others). Create a new skill from scratch or from a conversation, update or optimize an existing one, run evaluations to test it, benchmark its performance, optimize a description for better…
Agent
Analyze blind comparison results to understand WHY the winner won and generate improvement suggestions.
Agent
Compare two outputs WITHOUT knowing which skill produced them.
Agent
Evaluate expectations against an execution transcript and outputs.
Skill Claude CodeCodex
Swift language and concurrency, wherever Swift runs — Apple platforms, Linux, server, embedded. Covers API design and the Swift API Design Guidelines, naming, access control, the type system (struct and enum first, final classes, generics, some versus any, existentials, copy-on-write, property wrappers, making illegal…
Skill Claude CodeCodex
Apple platforms: SwiftUI view construction, idiom, and design engineering — views and view structure, state and data flow (@State, @Binding, @Observable over ObservableObject, @Environment, EnvironmentKey, EnvironmentValues, FocusedValue), ForEach and list identity, view modifiers, navigation and sheets, ScrollView…
Skill Claude CodeCodex
Language-agnostic system architecture and DevOps: infrastructure design, CI/CD pipeline design (GitHub Actions, matrix builds, caching, OIDC, reusable workflows, composite actions, Xcode Cloud), infrastructure as code (Terraform, CloudFormation, module structure), containerization and Kubernetes, progressive delivery…
Skill Claude CodeCodex
Language-agnostic testing methodology across the full lifecycle, with an Apple-platform section covering Swift Testing and XCTest migration. Generic core: test strategy and the testing pyramid, example mapping, ATDD, TDD and the Red-Green-Refactor loop, property-based testing, contract testing, characterization…
Skill Claude CodeCodex
Language-agnostic work documentation for software projects: PR descriptions, work summaries (sprint, release, multi-PR), ticket-system artifacts (user stories, epics, bugs, tasks, spikes), planning-increment artifacts, ADRs, design docs, release notes, and changelogs. Two perspectives: requesting (defining work as a…