Engineering

by anthropics · Engineering

Guides creation of MCP servers (Python/TS)

by anthropics · Engineering

Tests local webapps with Playwright + screenshots

by anthropics · Engineering

React + Tailwind + shadcn artifacts

by anthropics · Engineering

Creates/edits/evaluates skills

by Microsoft · Engineering

Skills, MCP servers, custom agents, and Agents.md files that ground coding agents in Microsoft SDKs

by obra · Engineering

RED-GREEN-REFACTOR enforcement

by obra · Engineering

Isolated git worktrees with safety verification

by obra · Engineering

Fresh subagent per task with two-stage review

by obra · Engineering

Task-by-task plan execution with checkpoints

by obra · Engineering

Skill for writing new Agent Skills properly

by obra · Engineering

Verifies tests, merge/PR/discard options

by obra · Engineering

Systematic debugging methodology: reproduce, isolate, trace to root cause

by mattpocock · Engineering

Rescues ball-of-mud codebases

by anthropics · Engineering

Code-review workflow

by anthropics · Engineering

Architecture/system design workflow

by anthropics · Engineering

Incident management workflow

by anthropics · Engineering

Engineering plugin: architecture, code review, debugging, testing strategy, system design, tech debt, deploy checklists and incident response.

by anthropics · Engineering

Cowork plugin management: create new Claude plugins from scratch and customize existing ones for an organization.

by anthropics · Engineering

Partner-built Zoom developer plugin: 40+ skills for Meeting/Video SDKs, OAuth, webhooks, RTMS, Team Chat, Contact Center and Zoom Apps.

by stripe · Engineering

Stripe: Checkout vs PaymentIntents, Connect, billing

by stripe · Engineering

Stripe SDK and API version upgrade

by hookdeck · Engineering

Stripe webhook receivers with verification

by hookdeck · Engineering

GitHub webhook receiver with HMAC verification

by hookdeck · Engineering

Shopify webhooks with HMAC verification

by cloudflare · Engineering

Workers CLI: KV, R2, D1, Queues, Workflows

by cloudflare · Engineering

Stateful coordinated apps on Workers edge

by cloudflare · Engineering

AI agents on Workers using Agents SDK

by cloudflare · Engineering

Workers production patterns

by getsentry · Engineering

Sentry SDK skills per language

by trailofbits · Engineering

CodeQL, Semgrep, SARIF parsing toolkit

by trailofbits · Engineering

Architectural context for security audits

by trailofbits · Engineering

Security testing handbook as skills

by browserbase · Engineering

Sessions, contexts, debug failing automations

by vercel-labs · Engineering

Next.js, React Best Practices, Web Design, AccessLint

by dbt-labs · Engineering

Analytics engineering, MetricFlow, dbt Mesh

by github · Engineering

GitHub-official agent skills/instructions/hooks

by Shopify · Engineering

15 skills covering Admin/Storefront/Customer/Partner GraphQL APIs, Functions, Hydrogen, Liquid themes, Polaris UI extensions, and POS UI

by Twilio · Engineering

Official Twilio skills and MCP: account/IAM setup, verification and promo advisors, OTP/SMS/SendGrid sending, and security/compliance guardrails

by AWS (awslabs) · Engineering

Generate documentation for codebases that run on AWS.

by Shopify · Engineering

The Admin GraphQL API lets you build apps and integrations that extend and enhance the Shopify admin.

by Shopify · Engineering

MUST be used first when prompts mention Metafields or Metaobjects.

by Shopify · Engineering

The Customer Account API allows customers to access their own data including orders, payment methods, and addresses.

by Shopify · Engineering

Search Shopify developer documentation across all APIs.

by Shopify · Engineering

Shopify Functions allow developers to customize the backend logic that powers parts of Shopify.

by Shopify · Engineering

The Partner API lets you programmatically access data about your Partner Dashboard, including your apps, themes, and affiliate referrals.

by Shopify · Engineering

The Payments Apps API enables payment providers to integrate their payment solutions with Shopify's checkout.

by Shopify · Engineering

Use for custom storefronts requiring direct GraphQL queries/mutations for data fetching and cart operations.

by Twilio · Engineering

Build AI-powered voice agents using Twilio ConversationRelay.

by Twilio · Engineering

Planning skill for AI-powered conversational agents.

by Twilio · Engineering

Twilio Messaging channel overview and onboarding guide.

by Twilio · Engineering

Look up phone number intelligence via Twilio Lookup v2 API.

by Twilio · Engineering

Build and deploy Twilio Studio flows — visual IVR, SMS/WhatsApp, and conversation automation — by authoring the flow definition JSON and managing it through the Studio REST API.

by Twilio · Engineering

WhatsApp messaging deep-dive reference.

by Twilio · Engineering

Send RCS Business Messages via Twilio.

by Twilio · Engineering

Design, secure, and operate Twilio webhook endpoints.

by Twilio · Engineering

Send transactional and bulk email via the SendGrid v3 Mail Send API.

by lackeyjb · Engineering

Model-invoked Playwright automation

by netresearch · Engineering

PHP 8.x: types, enums, PHPStan, Rector

by netresearch · Engineering

OWASP audit patterns for PHP

by netresearch · Engineering

Dockerfile, compose, multi-stage builds

by netresearch · Engineering

Production Go: testing, Docker, resilience

by netresearch · Engineering

Branching, Conventional Commits, PR workflows

by netresearch · Engineering

SLSA, OpenSSF scorecards, SBOMs

by zxkane · Engineering

AWS CDK, cost-opt MCP, serverless patterns

by obra · Engineering

Use when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies

by obra · Engineering

Use when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires technical rigor and verification, not performative agreement or blind implementation

by obra · Engineering

Use when completing tasks, implementing major features, or before merging to verify work meets requirements

by obra · Engineering

Use when starting any conversation - establishes how to find and use skills, requiring skill invocation before ANY response including clarifying questions

by obra · Engineering

Use when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output before making any success claims; evidence before assertions always