Skills directory · page 5

API design principles and decision-making. REST vs GraphQL vs tRPC selection, response formats, versioning, pagination.

Implement secure API design patterns including authentication, authorization, input validation, rate limiting, and protection against common API vulnerabilities

API security testing workflow for REST and GraphQL APIs covering authentication, authorization, rate limiting, input validation, and security best practices.

Use when asked to write API, integration or contract tests for REST endpoints. Builds the suite from the routes: happy paths, auth, validation errors and edge cases per endpoint.

Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.

Use for any App Store or Google Play listing, keyword, ranking or review question, before writing metadata. Scores the listing with aso_scorer.py and checks keywords, competitors, title and subtitle limits and reviews with its 8 ASO scripts.

Complete App Store Optimization (ASO) toolkit for researching, optimizing, and tracking mobile app performance on Apple App Store and Google Play Store

Instrument a webapp to send useful telemetry data to Azure App Insights

Guidance for instrumenting webapps with Azure Application Insights. Provides telemetry patterns, SDK setup, and configuration references. WHEN: how to instrument app, App Insights SDK, telemetry patterns, what is App Insights, Application Insights guidance, instrumentation examples, APM best practices.

Use for device or simulator UI verification through Apple's Xcode MCP after UI changes or an explicit device check. Inspect screenshots and UI hierarchies, exercise controls, and report functional or visual defects.

Use when designing or reviewing iOS, macOS, watchOS or visionOS UI against Apple's Human Interface Guidelines, including Liquid Glass, contrast and tap targets. Checks it with hig_checker.py.

Instrument browser/web apps with the Application Insights JavaScript SDK (@microsoft/applicationinsights-web). Use for Real User Monitoring (RUM) — page views, clicks, AJAX/fetch dependencies, exceptions, custom events, and browser-side GenAI agent traces correlated to backend OpenTelemetry traces. Covers SDK Loader Script and npm setup, framework extensions (React, React Native, Angular), Click Analytics, telemetry initializers, and OTel GenAI semantic conventions for agent/tool/model spans emitted from the browser.

Use for /ar-loop, or to run an autoresearch experiment on a schedule (10 min to monthly) with CronCreate.

Use for /ar-resume, or to continue a paused autoresearch experiment from its branch and results history.

Use for /ar-run, or to run one manual autoresearch iteration: edit, evaluate, keep or discard.

Show autoresearch results and progress. Use when asked how an experiment runs, or /ar-status.

Creates correct Arabic subtitles and burned-in captions. Covers SRT/ASS files, right-to-left punctuation fixes, Arabic font rendering in ffmpeg, line breaking, word-by-word highlight captions for Reels, and export for CapCut, Premiere, and YouTube. Use when the user wants "ترجمة", "كابشن", "سب تايتل", "حط الكلام على الفيديو", Arabic subtitles, or captions that show broken or reversed Arabic.

Writes scroll-stopping Arabic hooks and video openings (first 1–15 seconds) in the creator's own dialect, using formulas proven on Arabic Reels, TikTok, Shorts and YouTube. Use when the user asks for "هوك", "بداية الفيديو", "أول جملة", "مقدمة تشد", an Arabic hook, or wants hook options for an Arabic script.

Researches the Arabic content market for a niche (what's working on Arabic YouTube, TikTok and Instagram, competitor channels, audience questions, seasonal moments like Ramadan, and gaps between English and Arabic content) and turns it into video angles. Use when the user asks "إيه اللي شغال في المجال ده", "حلل المنافسين", "أفكار فيديوهات", "إيه الناقص في المحتوى العربي", or wants research before making Arabic content.

Animates Arabic text correctly and beautifully in Remotion, HTML/CSS/GSAP and After Effects-style workflows. Covers right-to-left layout, word-level (never letter-level) animation, Arabic fonts, mixed Arabic/English, digits, diacritics clipping, and kinetic typography synced to speech. Use when making Arabic titles, kinetic text, lower thirds, animated captions or any motion graphic with Arabic text, or when Arabic letters appear disconnected, reversed, or cut off in an animation.

Writes complete Arabic video scripts (YouTube long-form, explainers, tutorials, talking-head, faceless) that keep viewers watching, in the creator's dialect, with timing based on Arabic speech rate and a visual cue for every beat. Use when the user wants "سكريبت", "اكتبلي فيديو", "سيناريو يوتيوب", an Arabic YouTube script, or to turn an article/idea into an Arabic video.

Plans and writes Arabic short-form videos (Reels, TikTok, YouTube Shorts, Snapchat Spotlight) end-to-end in one pass, covering hook, 20–60 s script, shot list, on-screen text, caption and hashtags, tuned for Arab audiences and RTL screens. Use when the user asks for "ريل", "ريلز", "تيك توك", "شورتس", "فيديو قصير", or a quick vertical video in Arabic.

Creates Arabic YouTube titles and thumbnail text as a matched pair, handling right-to-left layout, mixed Arabic/English, digit style, length limits, and readability at phone size. Use when the user asks for "عنوان", "عناوين يوتيوب", "نص الثمبنيل", "تصميم الصورة المصغرة", or Arabic titles/thumbnails for a video.

Cleans Arabic speech transcripts from Whisper, YouTube auto-captions or other tools. It fixes dialect words the AI turned into فصحى, restores English terms written in Arabic letters, marks filler words (يعني، بص، إممم) with timestamps for cutting, and produces a clean transcript plus a cut list. Use when the user has an Arabic transcript, wants to remove fillers, "نضّف التفريغ", "شيل يعني وإممم", or prepares Arabic footage for editing or captions.

Captures an Arab creator's real speaking voice (dialect, rhythm, signature phrases, code-switching) into a reusable Voice Card, and rewrites stiff or AI-sounding Arabic into natural spoken Arabic. Use before writing any Arabic script, caption, or post; when the user says "اكتب بأسلوبي", "خليه بالمصري/بالخليجي", "الكلام ده شكله AI", "عايزه طبيعي", or shares past videos/captions as a voice reference.

Optimizes Arabic YouTube videos for search (keywords across dialects and فصحى, spelling variants, Arabizi, bilingual descriptions, tags, chapters, and hashtags) so videos are found from every Arab country. Use when the user asks for "سيو يوتيوب", "وصف الفيديو", "تاجات", "كلمات مفتاحية", "chapters بالعربي", or Arabic YouTube metadata.

Infer gene regulatory networks (GRNs) from gene expression data using scalable algorithms (GRNBoost2, GENIE3). Use when analyzing transcriptomics data (bulk RNA-seq, single-cell RNA-seq) to identify transcription factor-target gene relationships and regulatory interactions. Supports distributed computation for large-scale datasets.

AI Agent Architect: Design agent systems: single vs multi-agent, tools and MCP, memory, guardrails, evals.

AI Automation Strategist: Decide what to automate: opportunity mapping, ROI, build vs buy, rollout and change management.

AI x Web3 Architect: Autonomous agents that hold wallets: smart accounts, spend limits, intents, agent payments.

Workflow Automation Architect: Automate business processes: triggers, queues, retries, approvals, n8n vs Temporal vs code.

Use to carve or tighten ONE architecture boundary in a repo with the living-architecture setup — take a coherent batch of grandfathered `#legacy` arrows (or extract a new node), refactor them away with verified moves (deterministic-refactor), and shrink the legacy-arrow baseline monotonically. Behaviour-preserving by definition; one slice = one branch/PR.

Smart Contract Systems Architect: Contract system design: modules, upgradeability, access control, storage, audit readiness.

Cross-chain & L2 Architect: Chain selection, rollups, bridges and cross-chain messaging with their trust assumptions.

DeFi Protocol Architect: Mechanism design for AMMs, lending, vaults and derivatives: oracles, liquidations, attack surfaces.

Build a repo's first living-architecture model — write the language sections of architecture/index.yaml, scaffold the as-is model from the measured imports (la-arch-scaffold), choose the wedge with the user, draft the principles from the repo's own instructions, map the specs, and get la-arch-check green. Syntax and maintenance are in the la:living-architecture reference.

LLMOps Architect: Run LLM features in production: model routing, evals, observability, caching, cost, safety.

RAG & Knowledge Architect: Retrieval systems: ingestion, chunking, embeddings, hybrid search, reranking, evals.

Tokenomics Designer: Token supply, utility, emissions, vesting, governance and incentive alignment.

Web3 Infrastructure Architect: Indexers, RPC, wallets, account abstraction, key management and off-chain services.

Architectural decision-making framework. Requirements analysis, trade-off evaluation, ADR documentation. Use when making architecture decisions or analyzing system design.

Comprehensive project architecture blueprint generator that analyzes codebases to create detailed architectural documentation. Automatically detects technology stacks and architectural patterns, generates visual diagrams, documents implementation patterns, and provides extensible blueprints for maintaining architectural consistency and guiding new development.

Write and maintain Architecture Decision Records (ADRs) following best practices for technical decision documentation. Use when documenting significant technical decisions, reviewing past architectural choices, or establishing decision processes.

コーディングセッション中にアーキテクチャ決定を構造化ADRとして記録し、自動的に決定の瞬間を検出し、コンテキスト、検討された代替案、根拠を記録します。今後の開発者がコードベースの形成理由を理解するためのADRログを維持します。

Capture architectural decisions as numbered ADR markdown files in docs/adr/ with context, alternatives considered, consequences, and an index README. Use when the user says 'record this decision' or 'ADR this', chooses between frameworks or databases, discusses trade-offs, or asks why the codebase is shaped this way.

Comprehensive patterns for creating, maintaining, and managing Architecture Decision Records (ADRs) that capture the context and rationale behind significant technical decisions.

Write and maintain Architecture Decision Records (ADRs) following best practices for technical decision documentation. Use when documenting significant technical decisions, reviewing past architectural choices, or establishing decision processes.

在Claude Code会话期间，将做出的架构决策捕获为结构化的架构决策记录（ADR）。自动检测决策时刻，记录上下文、考虑的替代方案和理由。维护一个ADR日志，以便未来的开发人员理解代码库为何以当前方式构建。

Master proven backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design to build maintainable, testable, and scalable systems.

Use when a founder wants to document or design a whole company as version-controlled markdown (company as code, a company wiki agents can read, an OKF bundle). Runs a 12-phase interview, scaffolds with scaffold_bundle.py and checks it with okf_linter.py.