Integrations & APIs

dykyi-roman Skill

Resolves HTTP routes (GET /api/orders) and console commands (app:process-payments) to their handler files. Detects framework, searches route/command definitions, extracts handler class and method, locates file via PSR-4 mapping.

dykyi-roman Skill

Detects synchronous operations that should be async. Identifies blocking email sends, in-request API calls, heavy processing in request cycle, and missing queue offloading.

dykyi-roman Bundle

Generates feature flag implementations for PHP projects. Creates flag services, configuration, percentage rollouts, user targeting, and integration with deployment pipelines.

dykyi-roman Bundle

Generates API Versioning pattern for PHP 8.4. Creates version resolution strategies (URI prefix, Accept header, query parameter), middleware, and deprecation support. Includes unit tests.

dykyi-roman Skill

Analyzes PHP code for batch processing issues. Detects single-item vs bulk operations, missing batch inserts, individual API calls in loops, transaction overhead.

jscraik Bundle

Build safe Oak Curriculum API learning flows. Use this skill when Oak endpoints, curriculum maps, or child-facing Apps SDK guidance are needed.

fusengine Bundle

Use when working with database schema, migrations, queries, or relations via Prisma 7 (Rust-free client, TypedSQL, Omit API).

dykyi-roman Skill

Generates PHPUnit integration tests for PHP 8.4. Creates tests with real dependencies, database transactions, HTTP mocking. Supports repositories, API clients, message handlers.

dykyi-roman Skill

Regression prevention checklist for bug fixes. Ensures API compatibility, behavior preservation, and no unintended side effects.

jscraik Bundle

Plan, implement, and validate backend service changes. Use when patching or adding backend features in an existing API, data, auth, worker, or service codebase.

jacob-balslev Skill

Use when designing or reviewing test doubles — the stand-in objects that replace real collaborators in a test: the five-kind taxonomy (dummy, stub, spy, fake, mock) from Meszaros's xUnit Test Patterns, the difference between state verification (Detroit-school, classicist) and interaction verification (London-school, mockist) and how it determines which doubles fit, the cost of doubles (fragility, false confidence, divergence from real behavior), the role of fakes as the under-used middle ground, the verify_with relationship to test-driven-development, and the heuristics for when to use a real collaborator instead of any double. Do NOT use for choosing test levels or what to test (use testing-strategy), the design discipline of writing tests first (use test-driven-development), specific mocking-library API choice (library docs), or general production stubs and feature flags (use feature-gating or domain-specific skills). Do NOT use for set up a production feature flag (use feature-gating).

coderabbitai Skill

Headless CMS integration guidance — Sanity (native Vercel Marketplace), Contentful, DatoCMS, Storyblok, and Builder.io. Covers studio setup, content modeling, preview mode, revalidation webhooks, and Visual Editing. Use when building content-driven sites with a headless CMS on Vercel.

coderabbitai Bundle

Read Slack context, route to the right Slack workflow, and prepare or perform Slack writes that match the user's intent.

coderabbitai Skill

Expert guidance for micro — asynchronous HTTP microservices framework by Vercel. Use when building lightweight HTTP servers, API endpoints, or microservices using the micro library.

jacob-balslev Skill

Use when designing tests that verify the interaction between two or more units of a system — modules, services, layers, processes: the scope-and-boundary primitives that distinguish integration from unit and e2e tests, the test-pyramid (Cohn 2009) and test-trophy (Dodds) frameworks for how much integration testing belongs in the suite, the real-vs-faked-collaborator decision per dependency, the test-data lifecycle (per-test setup, transaction rollback, container reset), the difference between sociable-unit tests, integration tests, and contract tests, and the failure modes (over-broad scope that mimics e2e, over-narrow scope that mimics unit, shared mutable state that produces flakes). Do NOT use for testing one unit in isolation (use testing-strategy + test-doubles-design), full user-journey testing (use e2e-test-design), consumer-driven contract verification (use contract-testing), or test-suite quality measurement (use mutation-testing).

coderabbitai Skill

v0 by Vercel expert guidance. Use when discussing AI code generation, generating UI components from prompts, v0 CLI usage, v0 SDK/API integration, or integrating v0 into development workflows with GitHub and Vercel deployment.

coderabbitai Skill

Vercel Chat SDK expert guidance. Use when building multi-platform chat bots — Slack, Telegram, Microsoft Teams, Discord, Google Chat, GitHub, Linear — with a single codebase. Covers the Chat class, adapters, threads, messages, cards, modals, streaming, state management, and webhook setup.

coderabbitai Skill

Stripe payments integration guidance — native Vercel Marketplace setup, checkout sessions, webhook handling, subscription billing, and the Stripe SDK. Use when implementing payments, subscriptions, or processing transactions.

coderabbitai Bundle

Vercel Workflow DevKit (WDK) expert guidance. Use when building durable workflows, long-running tasks, API routes or agents that need pause/resume, retries, step-based execution, or crash-safe orchestration with Vercel Workflow.

jacob-balslev Skill

Use when defining or reviewing contracts between systems, modules, services, agents, jobs, events, APIs, or teams: ownership, inputs, outputs, invariants, compatibility, errors, idempotency, and versioning. Do NOT use for REST resource design alone (use `api-design`), async event contract detail (use `event-contract-design`), database schemas (use `entity-relationship-modeling`), or post-failure debugging (use `debugging`). Do NOT use for design the REST endpoints, status codes, and pagination. Do NOT use for create database tables and constraints. Do NOT use for investigate why this existing integration is failing in production. Do NOT use for write an ADR after the interface decision has already been accepted.

coderabbitai Skill

Vercel Marketplace expert guidance — discovering, installing, and building integrations, auto-provisioned environment variables, unified billing, and the vercel integration CLI. Use when consuming third-party services, building custom integrations, or managing marketplace resources on Vercel.

coderabbitai Skill

Full-story verification — infers what the user is building, then verifies the complete flow end-to-end: browser → API → data → response. Triggers on dev server start and 'why isn't this working' signals.

coderabbitai Skill

Guide for upgrading Stripe API versions and SDKs

coderabbitai Skill

Sign in with Vercel guidance — OAuth 2.0/OIDC identity provider for user authentication via Vercel accounts. Use when implementing user login with Vercel as the identity provider.

jacob-balslev Bundle

Use when running migration 0004 that normalizes the orders table from a Stripe-specific shape (stripe_session_id, stripe_customer_id as top-level columns) to a canonical provider-agnostic shape (provider, provider_order_id, provider_customer_id). Covers the four-phase safe migration procedure — add nullable columns, backfill from existing data, validate, drop legacy columns — and the RLS policy update that must accompany the column rename. Do NOT use for unrelated schema migrations (write a fresh skill anchored to that migration's number), for designing a new canonical schema from scratch, or for the ongoing orgQuery access pattern (use postgres-rls-pattern).

coderabbitai Bundle

Implement, review, or improve SwiftUI features using the iOS 26+ Liquid Glass API. Use when asked to adopt Liquid Glass in new SwiftUI UI, refactor an existing feature to Liquid Glass, or review Liquid Glass usage for correctness, performance, and design alignment.

jamie-bitflight Bundle

Sync a skill's content against the upstream library it covers — check whether the API descriptions, version references, and SOURCE: citations inside SKILL.md and its reference files still reflect what the library actually does today. Use when a library has released updates that may have changed the APIs the skill covers, when a skill references an old library version, when asked to sync, refresh, update, or check a skill against upstream docs, when the skill's content may have drifted from current library behavior, or when SOURCE: citations are stale. Accepts a SKILL.md path, skill directory, or plugin directory.

harshahosur81 Skill

You are an API mocking expert specializing in creating realistic mock services for development, testing, and demonstration purposes. Design comprehensive mocking solutions that simulate real API behav

jamie-bitflight Skill

Hook JSON input/output API reference — what data hooks receive via stdin and what JSON they can return to control Claude Code behavior. Use when writing hook scripts, checking exit code behavior, building JSON output for PreToolUse permissions, or understanding event-specific input schemas.

harshahosur81 Skill

Master enterprise-grade Scala development with functional programming, distributed systems, and big data processing. Expert in Apache Pekko, Akka, Spark, ZIO/Cats Effect, and reactive architectures. Use PROACTIVELY for Scala system design, performance optimization, or enterprise integration.

harshahosur81 Skill

Develop native iOS applications with Swift/SwiftUI. Masters iOS 18, SwiftUI, UIKit integration, Core Data, networking, and App Store optimization. Use PROACTIVELY for iOS-specific features, App Store optimization, or native iOS development.

jamie-bitflight Skill

Python web and API development enforcing strict route/domain/data layer separation, Pydantic v2 strict request-response models, edge-resolved auth, and async-safe HTTP clients. Use when working with FastAPI, Starlette, Django, Flask, HTTP endpoints, request models, authentication flows, async handlers, or any Python web framework task.

jamie-bitflight Skill

Executes the implementation phase of the python-engineering stinkysnake modernization workflow. Use when stinkysnake phases 1-8 are complete — modernization plan reviewed, interfaces designed, and failing tests written. Implements functions in dependency order (types, data structures, utilities, core logic, integration, entry points) applying modern Python patterns (Protocol, dataclass, Pydantic, modern type annotations, httpx, orjson). Runs iterative pytest loops until all tests pass, then verifies with static analysis via prek or ruff. Success criteria — all tests pass, no type errors, no lint errors, coverage meets project threshold.

harshahosur81 Skill

You are an **expert onboarding specialist and knowledge transfer architect** with deep experience in remote-first organizations, technical team integration, and accelerated learning methodologies. You

harshahosur81 Skill

Build high-performance async APIs with FastAPI, SQLAlchemy 2.0, and Pydantic V2. Master microservices, WebSockets, and modern Python async patterns. Use PROACTIVELY for FastAPI development, async optimization, or API architecture.

jackspace Bundle

Production-ready authentication framework for TypeScript with first-class Cloudflare D1 support. Use this skill when building auth systems as a self-hosted alternative to Clerk or Auth.js, particularly for Cloudflare Workers projects. Supports social providers (Google, GitHub, Microsoft, Apple), email/password, magic links, 2FA, passkeys, organizations, and RBAC. Prevents 10+ common authentication errors including session serialization issues, CORS misconfigurations, D1 adapter setup, social provider OAuth flows, and JWT token handling. Keywords: better-auth, authentication, cloudflare d1 auth, self-hosted auth, typescript auth, clerk alternative, auth.js alternative, social login, oauth providers, session management, jwt tokens, 2fa, two-factor, passkeys, webauthn, multi-tenant auth, organizations, teams, rbac, role-based access, google auth, github auth, microsoft auth, apple auth, magic links, email password, better-auth setup, session serialization error, cors auth, d1 adapter