Quick API endpoint testing with comprehensive request/response validation.

You are an API mocking expert specializing in realistic mock services for development, testing, and demos. Design mocks that simulate real API behavior and enable parallel development.

Test FastAPI endpoints with pytest and generate API documentation. Use when creating new APIs or verifying existing endpoints work correctly.

API testing, documentation, and development tools

Helps developers configure API-triggered campaigns in the Clix console and

Generates TypeScript interfaces from API responses or OpenAPI schemas. Use when the user asks about typing API responses, creating interfaces from JSON, parsing Swagger/OpenAPI, or keeping types in sync with backend.

Validate REST API design standards compliance including versioning, naming conventions, HTTP methods, status codes, pagination, and Swagger documentation.

Safely evolve APIs without breaking existing clients.

RESTful API design patterns and best practices. Use when creating endpoints, designing APIs, or implementing routes.

Apidog API development platform documentation - API design, testing, mocking, and documentation

Build and deploy Apify actors for web scraping and automation. Use for serverless scraping, data extraction, browser automation, and API integrations with Python.

Apify JS SDK Documentation - Web scraping, crawling, and Actor development

Build Apify Actors (web scrapers) using Node.js and Crawlee. Use when creating new scrapers, defining input schemas, configuring Dockerfiles, or deploying to Apify. Triggers include apify, actor, scraper, crawlee, web scraping, data extraction.

Android APK unpacking and resource extraction tool for reverse engineering. Use when you need to decode APK files, extract resources, examine AndroidManifest.xml, analyze smali code, or repackage modified APKs.

Use when implementing Apollo caching strategies including cache policies, optimistic UI, cache updates, and normalization.

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Enforce Design-It-Twice workflow: generate 2-3 radically different approaches, compare them, then implement. Use when designing modules, APIs, or classes before implementation. Triggers on: design, create class, add module, implement feature, new service, API design, before implementing. Produces structured design document with approaches, comparison table, choice rationale, and depth check.

Enforce comments-first workflow for new code and improve naming/documentation for existing code. Use when writing new classes, methods, or functions; when code is 'confusing' or 'hard to understand'; when naming precision is poor; or when variable documentation lacks units, bounds, or ownership. Triggers on: new code, comments-first, naming review, documentation review, not obvious, hard to understand. Produces well-documented code with precise naming, or identifies design problems when comments/names are hard to write.

Enforce strategic programming discipline when modifying existing code. Guide through STOP-ASK-DECIDE-VERIFY workflow with urgency tier assessment (trivial/minor/standard/emergency). Include when NOT to refactor (Chesterton's Fence, performance-critical, no tests) and block tactical shortcuts via anti-rationalization tables. Use when fixing bugs, extending features, or tempted to make quick fixes. Triggers on: modify code, fix bug, extend feature, quick fix, tactical change.

Evaluate module design using APOSD principles with 40-item checklist. Detect complexity symptoms (change amplification, cognitive load, unknown unknowns), shallow modules, information leakage, pass-through methods, and structural anti-patterns. Produce categorized design review (Critical/Moderate/Observations/Positive). Use when reviewing code, assessing interfaces, during PR review, or evaluating 'is this too complex?' Triggers on: code review, design review, module complexity, interface assessment, PR review, structural analysis.

Simplify complex code through the Error Reduction Hierarchy: Define out > Mask > Aggregate > Crash. Use when code is too complex, has scattered error handling, configuration explosion, or callers doing module work. Produce technique analysis table with gate checks before simplified code. Triggers on: too complex, simplify, scattered errors, configuration proliferation, verbose error handling. Complements cc-defensive-programming with design-level error elimination.

Verify code correctness before claiming done or committing. Run 6-dimension checklist: requirements coverage, concurrency safety, error handling, resource management, boundary conditions, and security. Output PASS/FAIL per dimension with final DONE/NOT DONE verdict. Use after implementation as pre-commit gate. Triggers on: is it done, ready to commit, verify correctness, did I miss anything, pre-commit check.

Expert digital data analytics consultant for designing and implementing data-driven growth strategies for mobile and digital applications. Use this skill when users need help with app analytics strategy, metrics selection, analytics framework implementation, cohort analysis, user segmentation, A/B testing, customer journey mapping, retention optimization, or choosing analytics tools. Applies to product managers, growth teams, and developers building data-driven applications across all platforms and industries seeking to optimize user engagement, retention, and revenue through analytics.

Create apps following contract-port architecture with composition roots. Use when creating new apps in apps/, scaffolding CLI tools, setting up dependency injection, or when the user asks about app structure, entrypoints, or platform-agnostic design.

Submitting, testing, and releasing mobile apps to app stores including App Store and Google Play submission, beta testing, OTA updates, and release management.

App Intents framework for Siri, Shortcuts, Spotlight, Action Button, and system integration. Use when user asks about Siri, Shortcuts, App Intents, voice commands, Action Button, or system integration.

Review and process app submissions for the Pollinations showcase. Parse issues, validate submissions, create PRs, handle user corrections.

All modes that write scripts or code follow these app standards for communication, modularization, simplification, naming conventions

app-template

Imported skill app from langchain

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Create Apple-inspired modern, minimalist UI designs with glassmorphism, smooth animations, generous whitespace, and elegant typography. Use when designing portfolio websites, landing pages, hero sections, product showcases, or implementing Apple-style components, dark mode, or responsive layouts.

Comprehensive guide for accessing and automating Apple Mail using AppleScript, including reading emails, sending messages, and managing mailboxes.

Use when working with Apple Shortcuts on macOS/iOS - discovering actions, extension apps, running shortcuts from CLI, or integrating with automation workflows.

Expert troubleshooting for Apple TV (tvOS) React Native development. Use when users have issues with Siri Remote, focus management, TVEventHandler, TVFocusGuideView, ScrollView not scrolling, tvOS-specific problems, parallax animations, or tvOS vs Android TV differences.

Optimize end-to-end application performance with profiling, observability, and backend/frontend tuning. Use when coordinating performance optimization across the stack.

Use after code review - implement ALL findings; any finding not fixed MUST have tracking issue created; no finding disappears without trace

Apply and validate the 7 Key Principles to code - TDD, Fail Fast, Modular, Reuse, Open Source, No Debt, Excellence. Checks code compliance and suggests improvements. Use during code review or refactoring.

Provides guidelines for applying Mantel's brand styles to diagrams and frontend components. Use when asked to create visuals that need to align with Mantel's branding.

Systematically consume QA quality gate outputs and apply prioritized fixes for high-severity issues, NFR failures, and test coverage gaps. Use when quality review identifies issues requiring remediation.

Comprehensive guide for creating content on ayokoding-web Hugo site using Hextra theme. Covers bilingual content strategy (default English), level-based weight ordering system, by-example tutorial annotation standards (1-2.25 comments per code line), absolute path linking requirements, and ayokoding-web specific frontmatter patterns. Essential for content creation tasks on ayokoding-web

Guide for creating content on ose-platform-web Hugo site using PaperMod theme. Covers English-only landing page structure, update posts with date-prefixed filenames, PaperMod frontmatter (cover images, table of contents, author field), simple flat organization, and ose-platform-web specific conventions. Essential for ose-platform-web content creation tasks

Elite Application Security engineer specializing in secure SDLC, OWASP Top 10 2025, SAST/DAST/SCA integration, threat modeling (STRIDE), and vulnerability remediation. Expert in security testing, cryptography, authentication patterns, and DevSecOps automation. Use when securing applications, implementing security controls, or conducting security assessments.

Expert iOS App Store submission and approval system. 9 specialized agents providing senior App Review Team-level expertise across compliance, design, privacy, monetization, metadata, technical requirements, timing, rejection recovery, and learning. Triggers on keywords like app store, iOS submission, apple review, app rejection, aso, privacy manifest, privacy labels, ATT, iap, in-app purchase, subscription, storekit, review guidelines, HIG, testflight, app store connect.

apptainer

Migrate Agentic QE projects from v2 to v3 with zero data loss

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Batch update ARB translation files across all languages when new translation keys are added to English and Chinese files; use when adding new i18n strings to the Flutter app.

project-beta uses self-hosted GitHub Actions runners deployed via ARC (Actions Runner Controller) on Rackspace Spot Kubernetes. This guide covers common issues and troubleshooting procedures.