1 311 communication skills from 262 authors. They handle mail, chats, messengers and meetings. Half of them fit into 1 949 tokens or less — that is what one costs your context window when the agent loads it. 168 ship runnable scripts rather than instructions alone. 37 of them cannot work without an MCP server, most often rube. We also found 166 copies of these same skills sitting in other people's repositories — counted once here, not 166 times.
1 311 unique 262 authors 2 updated this month 178 from vendors
Quickly capture product ideas, feature requests, or insights from meetings and conversations. Rapid documentation with smart categorization and deduplication.
Test email sending locally using Mailpit with .NET Aspire. Captures all outgoing emails without sending them. View rendered HTML, inspect headers, and verify delivery in integration tests.
Snapshot test email templates using Verify to catch regressions. Validates rendered HTML output matches approved baseline. Works with MJML templates and any email renderer.
Use when push notifications fail to arrive, token registration errors occur, notifications work in development but not production, silent push does not wake app, rich notification media is missing, or Live Activity stops updating via push. Covers APNs errors, environment mismatches, Focus mode filtering, service extension failures, FCM diagnostics.
Use when needing APNs HTTP/2 transport details, JWT authentication setup, payload key reference, UNUserNotificationCenter API, notification category/action registration, service extension lifecycle, local notification triggers, Live Activity push headers, or broadcast push format. Covers complete push notification API surface.
Use when implementing remote or local push notifications, requesting notification permission, managing APNs device tokens, adding notification actions/categories, building service extensions, or debugging push delivery failures. Covers APNs, FCM, Live Activity push transport, broadcast push, communication notifications, Focus interaction.
Automate Benchmark Email tasks via Rube MCP (Composio). Always search tools first for current schemas.
Connect Claude to external apps like Gmail, Slack, GitHub. Use this skill when the user wants to send emails, create issues, post messages, or take actions in external services.
Connect Claude to any app. Send emails, create issues, post messages, update databases - take real actions across Gmail, Slack, GitHub, Notion, and 1000+ services.
Analyzes your recent Claude Code chat history to identify coding patterns, development gaps, and areas for improvement, curates relevant learning resources from HackerNews, and automatically sends a personalized growth report to your Slack DMs.
Automate Hunter.io email intelligence -- search domains for email addresses, find specific contacts, verify email deliverability, manage leads, and monitor account usage -- using natural language through the Composio MCP integration.
Analyzes meeting transcripts and recordings to uncover behavioral patterns, communication insights, and actionable feedback. Identifies when you avoid conflict, use filler words, dominate conversations, or miss opportunities to listen. Perfect for professionals seeking to improve their communication and leadership skills.
Automate OneSignal tasks via Rube MCP (Composio): push notifications, segments, templates, and messaging. Always search tools first for current schemas.
Automate RingCentral tasks via Rube MCP (Composio): calls, messages, meetings, and unified communications. Always search tools first for current schemas.
A skill that creates new Claude skills and automatically shares them on Slack using Rube for seamless team collaboration and skill discovery.
Toolkit for creating animated GIFs optimized for Slack, with validators for size constraints and composable animation primitives. This skill applies when users request animated GIFs or emoji animations for Slack from descriptions like "make me a GIF for Slack of X doing Y".
Automate Cisco Webex messaging, rooms, teams, webhooks, and people management through natural language commands
Automate Zoho Mail tasks via Rube MCP (Composio): email sending, folders, labels, and mailbox management. Always search tools first for current schemas.
CRXJS Chrome extension development — true HMR for popup, options, content scripts, side panels, manifest-driven builds, dynamic content script imports (`?script`, `?script&module`), and `defineManifest` for type-safe manifests. Uses Vite as its build tool. Use when the user mentions CRXJS, crxjs, @crxjs/vite-plugin, 'extension with hot reload', 'HMR for chrome extension', or wants to set up a CRXJS-based Chrome extension project with any framework (React, Vue, Svelte, Solid, Vanilla). Also trigger when the user has an existing CRXJS project and wants to add features, fix HMR issues, or configure content scripts with CRXJS. For general Chrome extension architecture (messaging, CSP, storage, permissions) -> See `samber/cc-skills@chrome-extension` skill.
Push notifications for Android using Firebase Cloud Messaging and NotificationCompat. Use when integrating FCM or local notifications in Android apps. (triggers: **/*Notification*.kt, **/MainActivity.kt, FirebaseMessaging, NotificationCompat, NotificationChannel, FCM)
Push and local notifications for Flutter using FCM and flutter_local_notifications. Use when integrating push or local notifications in Flutter apps. (triggers: **/*notification*.dart, **/main.dart, FirebaseMessaging, FlutterLocalNotificationsPlugin, FCM, notification, push)
Push notifications for iOS using UserNotifications framework and APNS. Use when integrating APNS push notifications in iOS applications. (triggers: **/*Notification*.swift, **/*AppDelegate.swift, UNUserNotificationCenter, APNS, UNNotificationRequest, deviceToken)
Standards for Notification Types, Service Architecture, and FCM Integration. Use when building notification services or integrating FCM in NestJS. (triggers: notification.service.ts, notification.entity.ts, notification, push, fcm, alert, reminder)
gRPC, RabbitMQ standards and Monorepo contracts. Use when implementing gRPC microservices, RabbitMQ messaging, or monorepo transport in NestJS. (triggers: main.ts, **/*.controller.ts, Transport.GRPC, Transport.RMQ, MicroserviceOptions)
Push notifications for React Native using Firebase or Expo Notifications. Use when integrating push notifications with Firebase or Expo in React Native. (triggers: **/*notification*.ts, **/*notification*.tsx, **/App.tsx, Notifications, messaging, FCM, expo-notifications, react-native-firebase)
Standards for Feign clients and asynchronous messaging with Spring Cloud Stream. Use when implementing Feign HTTP clients or async event messaging in Spring Boot microservices. (triggers: **/*Client.java, **/*Consumer.java, feign-client, spring-cloud-stream, rabbitmq, resilience4j)
> Develop Minecraft server plugins using the Paper/Bukkit/Spigot API for Minecraft 1.21.x. Handles creating Paper plugins with JavaPlugin, event listeners with @EventHandler, commands, schedulers (sync/async), Persistent Data Container (PDC), Adventure text components, Vault economy integration, BungeeCord/Velocity messaging, plugin.yml configuration, YAML config management, and Paper-specific enhancement APIs. Always targets Paper API 1.21.x (Java 21) with Gradle (Kotlin DSL). Distinguishes plugin development from mod
Draft cold emails, warm intro blurbs, follow-ups, update emails, and investor communications for fundraising. Use when the user wants outreach to angels, VCs, strategic investors, or accelerators and needs concise, personalized, investor-facing messaging.
Analyzes meeting transcripts and recordings to uncover behavioral patterns, communication insights, and actionable feedback. Identifies when you avoid conflict, use filler words, dominate conversations, or miss opportunities to listen. Perfect for professionals seeking to improve their communication and leadership skills.
A skill that creates new Claude skills and automatically shares them on Slack using Rube for seamless team collaboration and skill discovery.
Create and send transactional emails using React Email. Covers templates, layout integration, and sending logic.
Use when coordinating multiple AI agents in real-time - provides inter-agent messaging via tmux wrapper (sub-5ms latency) or file-based team inbox for async workflows
| Build AI chat interfaces with custom backends, authentication, and context injection. Use when integrating chat UI with AI agents, adding auth to chat, injecting user/page context, or implementing httpOnly cookie proxies. Covers ChatKitServer, useChatKit, and MCP auth patterns. NOT when building simple chatbots without persistence or custom agent integration.
| Build interactive AI chat widgets with buttons, forms, and bidirectional actions. Use when creating agentic UIs with clickable widgets, entity tagging (@mentions), composer tools, or server-handled widget actions. Covers full widget lifecycle. NOT when building simple text-only chat without interactive elements.
Generic Event-Driven Architecture patterns with Kafka, Dapr, and modern messaging systems. Provides reusable patterns for building scalable, resilient event-driven microservices. Framework-agnostic implementation supporting multiple message brokers, state stores, and event patterns. Follows 2025 best practices for distributed systems.
Comprehensive guide for accessing and automating Apple Mail using AppleScript, including reading emails, sending messages, and managing mailboxes.
Send SMTP email notifications after Codex completes a task. Use when one Codex or Claude run is finished, or when you need to notify on task completion with device name, project name, status, and summary via email.