Claude Skills
The open format is called Agent Skills and works in Claude Code, Codex, Cursor and other agents — most people know it as Claude Skills.
Every Agent Skill we could find on GitHub, deduplicated by content. 79 566 files from 1 758 authors, of which 61 913 are unique — the rest is the same skill repackaged into someone else's repository. For each one: what it weighs in tokens, whether it ships runnable scripts, and which MCP servers it needs.
Add features (calls, reactions, polls, file sharing, presence, etc.) to an already-integrated CometChat project. Routes to the right sub-flow based on feature type — default (already enabled), extension (API toggle), ai-feature (API toggle + OpenAI key), dashboard-only (third-party config), package-install (calls), or component-swap (rich text).
CometChat Calls integration for Flutter UIKit v5 (GetX-based chat kit) on the v5 Calls SDK (cometchat_calls_sdk ^5.0.2, added as a DIRECT dependency — raw SDK + custom call surface). Covers the 5.x lifecycle (CometChatCalls.init/login/loginWithAuthToken/generateToken/joinSession/getLoggedInUser), the CallSession.getInstance() in-call controls (mute/pauseVideo/switchCamera/raiseHand/setLayout/setAudioModeType/recording/leaveSession), SessionSettingsBuilder, the 5 split listeners (SessionStatus/ParticipantEvent/MediaEvent/ButtonClick/Layout), Android FCM + ConnectionService for VoIP push, iOS CallKit + PushKit, foreground service correctness on Android 14+, hangup cleanup, and additive-vs-standalone modes. The 4.x-bound cometchat_calls_uikit prebuilt call widgets are documented only as a legacy alternative incompatible with the 5.x calls SDK.
Use when customizing CometChat Flutter UIKit v5 beyond props — custom bubbles, templates, DataSource decorators, slot views, formatters.
Use when writing any code that uses CometChat Flutter UIKit v5 (cometchat_chat_uikit v5.2.14, cometchat_calls_uikit v5.0.15, cometchat_uikit_shared v5.2.3). Contains hard rules that prevent silent failures.
Use when working with CometChat Flutter UIKit v5 event system. Triggers on CometChatMessageEvents, CometChatUserEvents, CometChatGroupEvents, CometChatCallEvents, CometChatUIEvents, listeners.
Use when working with CometChat Flutter UIKit v5 conversation list component. Triggers on CometChatConversations, conversation list, recent chats.
Use when working with CometChat Flutter UIKit v5 message components. Triggers on CometChatMessageList, CometChatMessageComposer, CometChatCompactMessageComposer, CometChatMessageHeader, threads.
Use when preparing a CometChat Flutter UIKit v5 app for production. Covers auth tokens, ProGuard, environment config, security hardening.
Use when customizing the visual appearance of CometChat Flutter UIKit v5 components. Triggers on CometChatThemeHelper, CometChatColorPalette, CometChatSpacing, CometChatTypography, Style classes, merge().
Use when debugging CometChat Flutter UIKit v5 issues. Symptom-to-cause lookup, verify checks, common errors, drift detection.
Use when building chat with CometChat Flutter UIKit v5 (cometchat_chat_uikit v5.2.14, cometchat_calls_uikit v5.0.15). Orchestrator skill that routes to feature-specific skills.
Testing patterns for CometChat Flutter UIKit v5 (GetX-based). Covers flutter_test (built-in), mocktail for SDK mocking, widget tests around CometChat widgets, integration_test for real-device flows, golden tests for theming, and CI on GitHub Actions / Codemagic. Sister skill of cometchat-flutter-v6-testing — the cohorts have different state-management primitives (GetX vs Bloc) so test patterns differ.
Use when implementing push notifications with CometChat Flutter UIKit v5. Covers FCM (Android), APNs (iOS), VoIP calls, token lifecycle, local notifications, and tap-to-navigate.
Use when working with CometChat Flutter UIKit v5 user and group list components. Triggers on CometChatUsers, CometChatGroups, CometChatGroupMembers, CometChatChangeScope.
> Complete catalog of CometChat Flutter UI Kit v6 widgets. Reference before writing integration code — never invent widget names. Covers all chat components (conversations, messages, users, groups), call components (buttons, incoming, outgoing, ongoing, call logs), and shared views (avatar, badge, receipt, reactions, bubbles, list base, search, status indicator).
CometChat Calls integration for Flutter UIKit v6 (Bloc-based, stable). Production-ready at v6.0.1 GA (validated 2026-05-27 on Pixel 3) with ONE explicit MaterialApp wiring requirement still active from v6.0.0-beta2 — MaterialApp MUST wire navigatorKey to CallNavigationContext.navigatorKey or the outgoing-call screen never renders. (Vendor's own 6.0.1 sample is missing this line and broken out-of-the-box — file a vendor ticket if you find that sample first.) The earlier outgoing-to-in-call BLoC transition bug from beta2 is FIXED in 6.0.1 GA per the v6.0.0 changelog's 'Refreshed BLoC implementations across ongoing call flows' entry. Customers can now use V6 for calls. Covers UIKitSettings calling block, CometChatUIKitCalls.init() after CometChatUIKit.init() (CALLS_INIT_AFTER_CHAT_INIT), the kit's Bloc-driven CometChatCallButtons / CometChatIncomingCall / CometChatOutgoingCall / CometChatOngoingCall / CometChatCallLogs / CometChatCallBubble widgets, CallingConfiguration, CallOperationsServiceLocator lifecycle, VoIP push via external packages (FCM + PushKit + flutter_callkit_incoming — there is NO bundled native_call_kit module in the kit), and additive-vs-standalone modes.
> Use when implementing the conversations list with CometChat Flutter UIKit v6. Triggers on mentions of CometChatConversations, ConversationsBloc, ConversationsState, ConversationsLoaded, ConversationsServiceLocator, conversation list, recent chats, unread count, typing indicator in conversations, conversation item, last message, delete conversation, swipe actions, ConversationsRequestBuilder, onItemTap, subtitleView, trailingView, listItemView, or customizing the conversations screen. Also use when the user asks about showing a list of chats or recent conversations.
> Use when writing any code that uses cometchat_chat_uikit. Contains hard rules that prevent silent failures, crashes, and subtle bugs. Covers CometChatUIKit.init, login, logout, UIKitSettings, UIKitSettingsBuilder, listener lifecycle, theme caching, Scaffold resizeToAvoidBottomInset, subscriptionType, region, muid preservation, and the Clean Architecture + BLoC component pattern. Also use when seeing errors like "Authentication null", "APP ID null", ERR_ALREADY_LOGGED_IN, or StateError from uninitialized ServiceLocator. Make sure to use this skill for any CometChat Flutter UIKit code, even simple widget usage.
> request builders, text formatters + message templates, and BubbleFactory/DataSource. Use when the user wants custom bubbles, custom headers, custom list items, custom message actions, or custom message types.
> Use when working with real-time events, SDK listeners, or UI event streams in CometChat Flutter UIKit v6. Triggers on mentions of CometChatMessageEvents, CometChatUserEvents, CometChatGroupEvents, CometChatCallEvents, CometChatConversationEvents, MessageListener, UserListener, GroupListener, CallListener, ConnectionListener, ccMessageSent, ccMessageEdited, ccMessageDeleted, ccUserBlocked, ccUserUnblocked, ccGroupMemberKicked, ccGroupMemberBanned, onMessageReceived, onTypingStarted, onTypingEnded, onUserOnline, onUserOffline, onMessageDelivered, onMessageRead, addMessageListener, removeMessageListener, ChatSDKEventInitializer, or any real-time update handling in CometChat.
> Use when implementing the messages screen with CometChat Flutter UIKit v6. Covers CometChatMessageList, CometChatMessageComposer, CometChatMessageHeader, MessageListBloc, MessageComposerBloc, SliverSpacing, keyboard-aware spacing, rich text toolbar, CometChatTextBubble, CometChatImageBubble, CometChatVideoBubble, CometChatAudioBubble, CometChatFileBubble, CometChatMessageBubble, bubble factories, message templates, send message, edit message, delete message, reply, thread, reactions, receipts, typing indicators, mentions, markdown formatting, text formatters, scroll to bottom, unread messages, mark as read, goToMessageId, message options, swipe to reply, smart replies, conversation starters, or resizeToAvoidBottomInset. Also use when the user asks about building a chat screen, message input, or message display.
> Enable and configure features in CometChat Flutter UIKit v6 — calls, reactions, smart replies, conversation starters, stickers, mentions, rich text formatting, message translation, link preview, and AI features. Covers what's auto-enabled, what needs UIKitSettings flags, what's enabled by `cometchat apply-feature <id>`, and what needs manual dashboard configuration (third-party API keys).
> tab-based home (IndexedStack), Navigator.push messages screen, modal/bottom sheet chat, thread overlay, embedded panel, and floating widget. Includes Scaffold configuration, resizeToAvoidBottomInset, SafeArea, and keyboard-aware spacing patterns. Triggers on "add chat to my app", "where to put chat", "messages screen layout", "tab bar with chat", "chat in modal", "chat in drawer", "embedded chat", "Scaffold layout", or "keyboard handling".
> Use when migrating a CometChat Flutter app from UIKit v5 (cometchat_calls_uikit + GetX) to UIKit v6 (cometchat_chat_uikit unified package, no GetX). Covers import changes, dependency cleanup, GetX removal, init/login pattern changes, navigation rewrites, screen structure flattening, notification service updates, and BuilderSettings removal. Also use when seeing imports from cometchat_calls_uikit, get/get.dart, or v5-era patterns like GetBuilder, Get.put, Get.find, PageManager, BuilderSettings, or CometChatCallingExtension.
> Production readiness for CometChat Flutter UIKit v6 — server-side auth tokens, user management, Android ProGuard/R8, iOS Info.plist, minSdk, release build checklist, environment configuration, and security hardening. Use when preparing a CometChat Flutter app for production deployment.
Testing patterns for CometChat Flutter UIKit v6 (stable, Bloc-based). Covers flutter_test + bloc_test for Bloc unit tests, mocktail for SDK mocking, widget tests around the Bloc-driven CometChat widgets, integration_test for real-device flows, golden tests for theming, and CI on GitHub Actions / Codemagic. Sister skill of cometchat-flutter-v5-testing — the cohorts have different state-management primitives (GetX vs Bloc) so the patterns differ.
Push notifications for CometChat Flutter UIKit v6 (stable, Bloc-based). Covers firebase_messaging setup for FCM (Android) + APNs (iOS via Firebase), CometChat dashboard PushPlatform configuration, token registration via the Notifications SDK, background isolate handler (Dart entry-point rule), foreground vs background message routing, notification tap deep-link to chat threads, and the Bloc patterns for surfacing push state. Sister skill of cometchat-flutter-v5-push — same FCM stack, Bloc-flavored client integration.
> Use when customizing the visual appearance of CometChat Flutter UIKit v6 components. Triggers on mentions of CometChatThemeHelper, CometChatColorPalette, CometChatSpacing, CometChatTypography, CometChatThemeMode, dark mode, light mode, theme, colors, styling, custom theme, Style class, merge(), getColorPalette, getSpacing, getTypography, ThemeExtension, primary color, neutral colors, background colors, text colors, icon colors, button colors, border colors, or any CometChat{Component}Style class. Also use when the user asks about changing colors, fonts, spacing, or appearance of chat components.
> Diagnose and fix CometChat Flutter UIKit v6 integration problems. Covers init failures, login errors, UI rendering issues, keyboard problems, call failures, listener leaks, theme jank, and platform-specific build errors. Use when seeing errors, crashes, or unexpected behavior with CometChat components.
> Use when implementing user lists, group lists, or group member management with CometChat Flutter UIKit v6. Triggers on mentions of CometChatUsers, CometChatGroups, CometChatGroupMembers, UsersBloc, GroupsBloc, UsersServiceLocator, GroupsServiceLocator, user list, group list, contacts, members, group info, add members, ban members, transfer ownership, change scope, UsersRequestBuilder, GroupsRequestBuilder, GroupMembersRequestBuilder, or customizing user/group list items.
> Use when building chat with CometChat Flutter UIKit v6 (cometchat_chat_uikit). Triggers on CometChatUIKit, CometChatConversations, CometChatMessageList, CometChatMessageComposer, CometChatMessageHeader, CometChatUsers, CometChatGroups, UIKitSettings, CometChatThemeHelper, CometChatColorPalette, ConversationsBloc, MessageListBloc, CometChatTextBubble, CometChatImageBubble, CometChatMessageBubble, CometChatMentionsFormatter, SliverSpacing, ERR_ALREADY_LOGGED_IN, ERR_INVALID_REGION, authentication null. Also for adding chat to Flutter, customizing bubbles, theming, real-time messages. Use whenever user mentions CometChat or says "chat UI".
Localization (i18n) across all CometChat UI Kit families — React, React Native, Angular, Android (V5/V6), iOS, Flutter (V5/V6). Covers CometChatLocalize.init signature differences (positional vs object), bundled languages, custom-language registration, RTL support, fallback to English, and cross-family drift risks. Cross-family — applies wherever the agent is configuring CometChat localization.
CometChat Calls SDK v5 integration for native iOS (Swift; SwiftUI + UIKit hosting). Covers SDK install (SPM + CocoaPods), CometChatCalls init, dual-SDK ringing (Chat SDK initiateCall + Calls SDK generateToken/startSession), CallKit + PushKit VoIP push, AVAudioSession routing, mixed-stack hosting (UIViewControllerRepresentable for SwiftUI), Info.plist permissions + Background Modes, and additive-vs-standalone modes.
Complete catalog of CometChat iOS UI Kit v5 components with correct usage patterns from official documentation.
Customize CometChat iOS UI Kit beyond theming — custom views, message templates, text formatters, and event handling.
WHERE to put CometChat in your iOS app — navigation patterns, tab bars, modals, and embedded views.
Shared rules for CometChat iOS UI Kit v5. Always loaded alongside placement skills. Read this first.
Feature catalog for CometChat iOS UI Kit — calls, reactions, polls, stickers, AI features, and extensions.
Production-ready CometChat iOS setup — server-side auth tokens, security best practices, and deployment checklist.
Set up push notifications for CometChat iOS apps — APNs configuration, token registration, and notification handling.
Customize the look and feel of CometChat iOS UI Kit — colors, fonts, styles, and dark mode support.
Testing patterns for CometChat iOS UI Kit v5 in Swift / SwiftUI / UIKit projects. Covers XCTest setup, mocking CometChatSDK + CometChatUIKitSwift via protocols, snapshot testing with iOSSnapshotTestCase, async/await test helpers, UI testing for full chat flows on simulators, and CI on Xcode Cloud / GitHub Actions.
Entry-point for CometChat iOS UI Kit integration in any Swift/iOS project. Detects the project type, gathers requirements through an interactive conversation, and writes production-quality integration code for UIKit and SwiftUI applications.
Diagnose and fix common CometChat iOS integration issues — build errors, runtime errors, and debugging techniques.
Integration patterns for bare React Native CLI projects — pod install, Info.plist + AndroidManifest permissions, Apple privacy manifest, native module linking, Metro config.
CometChat Calls SDK integration for React Native (Expo managed + bare CLI). Covers @cometchat/calls-sdk-react-native install, dual-SDK init, native module linking (iOS pods, Android Gradle), VoIP push via react-native-callkeep + react-native-voip-push-notification + @react-native-firebase/messaging, CallKit on iOS / ConnectionService on Android, foreground service correctness on Android 14+, gesture handler + reanimated peer deps, Expo-specific config plugins, and additive-vs-standalone modes.
Component catalog for the CometChat React Native UI Kit v5 — names, props, slot views, request builders, hide flags, style shape. Always loaded before writing CometChat* JSX.
Shared rules for CometChat React Native UI Kit v5. Always loaded alongside framework (expo/bare) and placement skills. Read this first.
Customize the CometChat React Native UI Kit without forking — four-tier model: props → request builders → text formatters + message templates → DataSource decorators + event bus.
Integration patterns for Expo managed workflow — app.json config, permissions, gesture handler setup, env vars, Expo Router file-based routing subsection.
Where to put chat in a React Native app — Stack screen, BottomTab, Modal, BottomSheet, Embedded. Maps each to CometChat component composition with ASCII layout references.
Production-readiness for React Native — server-minted auth tokens, user management CRUD, external-backend recipes (Express / Hono / Firebase Functions / Vercel Serverless). RN has no API routes, so the backend is always external.
Feature catalog for React Native — calls (separate SDK + WebRTC), extensions (polls / stickers / translation / link preview / collaborative doc / whiteboard / smart replies), AI agent, in-call chat. When to toggle, install, or swap.
Push notifications for React Native CometChat — APNs + FCM setup, dashboard provider configuration, client registration, token lifecycle, foreground display, background wake, tap-to-deep-link, and the Expo Go / APNs-environment traps that silently break production.
Testing patterns for CometChat React Native — Jest + React Native Testing Library setup, mocking the UI Kit + SDK, testing custom bubbles / headers / composer actions, snapshot pitfalls, E2E with Detox vs Maestro, and CI integration. Covers what to test vs what to skip.
CometChatThemeProvider + CometChatI18nProvider — color tokens, typography, dark mode, per-component style overrides, and localization (18 built-in languages + custom translations). The JS theme object replaces CSS variables.
Diagnose CometChat React Native UI Kit integration failures — init/login, gesture handler, pod install, iOS privacy manifest, Android Maven, Metro cache, permissions, calls, extensions, v4-to-v5 upgrade. For push-specific symptoms see cometchat-native-push § 12.
Production integration patterns -- how to add CometChat as a route, modal, drawer, embedded panel, or widget in an existing project. Teaches Claude WHERE to put chat.
Framework-specific patterns for integrating CometChat React UI Kit v6 into Next.js projects (App Router and Pages Router). Covers SSR prevention, provider setup, route placement, API routes, and common pitfalls.
Production readiness for CometChat — server-side token auth, user management CRUD, environment hardening, and security checklist. Replaces dev-mode authKey with server-side tokens.
Claude Skills — questions
Answers built from the skills we actually parsed.