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.
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.
Integration patterns for bare React Native CLI projects — pod install, Info.plist + AndroidManifest permissions, Apple privacy manifest, native module linking, Metro config.
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.
Integration patterns for Expo managed workflow — app.json config, permissions, gesture handler setup, env vars, Expo Router file-based routing subsection.
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.
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.
Entry-point for CometChat integration. Guides a multi-step interactive conversation to understand the project, gather requirements, and write production-quality integration code.
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.
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.
Accessibility (a11y) for CometChat UI Kit integrations across all families — React, React Native, Angular, Android (V5/V6), iOS, Flutter. Covers WCAG 2.1 AA targets, keyboard navigation in chat, screen reader announcements (live regions for new messages), color contrast, focus management on call screens, motion-reduction support, and the cross-family checks that catch the common production a11y bugs. Cross-family — applies wherever the agent is checking accessibility.
CometChat Calls SDK v5 integration for native Android (V5 stable, Java + Kotlin Views). Covers SDK setup (Cloudsmith Maven, CallAppSettings, init), the dual-SDK ringing pattern (Chat SDK initiateCall + Calls SDK joinSession), session settings, event listeners, call logs, recording, screen sharing, picture-in-picture, foreground service for ongoing calls, VoIP push via FCM + ConnectionService, audio/video/participant controls, custom UI, and in-call chat. Use in standalone mode (calls is the product) or additive mode (calls layered on top of an existing CometChat Android v5 chat integration).
Complete catalog of CometChat Android UI Kit v5 components. Reference before writing integration code — never invent component names.
Extension architecture for CometChat Android — ExtensionsDataSource, decorators, built-in extensions, and how to create custom extensions.
Customize CometChat components beyond theming — custom message templates, DataSource decorators, event listeners, and custom view slots.
Add features (calls, reactions, polls, file sharing, AI, etc.) to an already-integrated CometChat project. Routes to the right sub-flow based on feature type.
Foundational rules for CometChat Android UI Kit v5. Initialization, login, UIKitSettings builder, dependency setup, and anti-patterns. Read this first.
Production readiness for CometChat Android — server-side token auth, user management CRUD, ProGuard rules, and security checklist.
Testing patterns for CometChat Android — JUnit + Mockito setup, mocking the SDK, Espresso UI tests, E2E with Maestro, and CI integration.
Where to put CometChat in your Android app — Activity, Fragment, BottomSheet, Dialog, Tab, or embedded patterns.
Push notifications for CometChat Android — FCM setup, CometChatNotifications API, token registration with PushPlatforms, foreground/background handling, notification channels, reply-from-notification, and tap-to-deep-link.
Customize CometChat UI to match your app's design system. Covers CometChatTheme, XML attributes, style classes, dark mode, and color system.
Entry-point dispatcher for CometChat Android UI Kit v5. Detects project setup, understands what the dev is building, and routes to the right sub-skills.
Diagnose and fix problems with a CometChat Android integration. Gradle errors, runtime crashes, rendering issues, and version compatibility.
CometChat Calls v6 integration for native Android (V6 stable, GA 2026-05-25 — Compose + Kotlin Views). Works end-to-end on chatuikit-compose-android:6.0.0 (validated 2026-05-12 against web peer) — but only with FIVE non-obvious workarounds the kit itself doesn't ship — (1) explicit calls-sdk-android:5.0.+ peer dep, (2) annotations-java5 exclude, (3) stub classes for legacy com.cometchat.calls.{CometChatRTCView, model.RTCUser, model.RTCReceiver, model.RTCCallback} to satisfy chat-sdk's CallManager bytecode, (4) AVOID CometChatCallButtons (broken — captures first-rendered user globally; ignores per-row prop) — instead wire your own button to CometChat.initiateCall then CometChatCallActivity.Companion.launchOutgoingCallScreen(context, call, null), (5) Call constructor arg order CHANGED in chat-sdk 5.x — (receiverUid, receiverType, type) not (receiverUid, type, receiverType). Covers UIKitSettings calling configuration, surface-aware Compose+Views routing, foreground service correctness on Android 14+, ConnectionService + FCM VoIP push.
CometChat Android UIKit v6 Compose placement — setContent, Compose Navigation, Dialog, BottomSheet, and Tab patterns
CometChat Android UIKit v6 Compose customization — BubbleFactory interface, slot lambdas, @Immutable style classes, and per-slot overrides
CometChat Android UIKit v6 UIKitSettings configuration — all builder options for SDK init, presence, calling, and host overrides
CometChat Android UIKit v6 Jetpack Compose component catalog — all @Composable chat UI components, their parameters, styles, and usage
CometChat Android UIKit v6 Jetpack Compose theming — CometChatTheme, CompositionLocal color schemes, typography, shapes, and dark mode
CometChat Android UIKit v6 core setup — Gradle dependencies, SDK initialization, login/logout, and message sending
CometChat Android UIKit v6 feature catalog — AI features, reactions, polls, stickers, moderation, collaborative, and media features
CometChat Android UIKit v6 event system — SharedFlow-based reactive event bus for messages, calls, users, groups, conversations, and UI events
CometChat Android UIKit v6 extension architecture — DataSource/Repository pattern, custom message types, and data-layer overrides
CometChat Android UIKit v6 Kotlin Views placement — Activity, Fragment, BottomSheet, Tab, and Intent navigation patterns
CometChat Android UIKit v6 Kotlin Views customization — BubbleFactory abstract class, BubbleViewProvider, style classes, and per-slot overrides
CometChat Android UIKit v6 Kotlin Views component catalog — all custom View chat UI components, their properties, styles, and usage
CometChat Android UIKit v6 Kotlin Views theming — CometChatTheme singleton, XML attributes, programmatic overrides, typography, and dark mode
V5→V6 migration recipes for native Android. CometChat ships V5 (chat-uikit-android:5.x — Java + Kotlin Views) and V6 (chatuikit-{compose,kotlin}-android:6.x — GA 2026-05-25 — Compose surface OR Kotlin Views, calls bundled) side-by-side. Covers when to migrate vs stay, the cohort-selection decision (Compose vs Kotlin Views on V6), gradle dependency rewrites, builder API changes (UIKitSettings replaces UIKitSettingsBuilder), theme system rewrite (CometChatTheme.DayNight), calls integration delta (calling UI bundled, but calls-sdk-android:5.0.+ is still a required peer dep), Activity theme rules, side-by-side cohort selection during migration, and a verification checklist.
CometChat Android UIKit v6 push notifications — FCM setup, chat/call notification handling, VoIP integration, and deep-linking
CometChat Android UIKit v6 production readiness — token auth, ProGuard/R8, security checklist, release configuration
CometChat Android UIKit v6 testing — unit testing ViewModels, Compose UI testing, Espresso, Maestro, and CI configuration
CometChat Android UIKit v6 troubleshooting — diagnostic table, common issues, and fixes for both Kotlin Views and Compose stacks
Entry-point dispatcher for CometChat Android UIKit v6 — routes to the correct skill based on project stack and task
CometChat Calls integration for Angular UI Kit v5 (@cometchat/chat-uikit-angular@5). Covers enabling calling via UIKitSettingsBuilder().setCallingEnabled(true), the kit's standalone call components (<cometchat-call-buttons>, <cometchat-incoming-call>, <cometchat-outgoing-call>, <cometchat-ongoing-call>, <cometchat-call-logs>), the @Input-callback-vs-@Output binding split, app-wide incoming-call mounting, the @cometchat/calls-sdk-javascript@^5 peer dep, NgZone correctness, getUserMedia handling, and additive-vs-standalone modes.
Foundational rules for CometChat Angular UI Kit v5 (@cometchat/chat-uikit-angular@5) — standalone-component setup, UIKitSettingsBuilder init, Promise-based login (bare uid string), loggedInUser$ observable, environment config, CSS-variable theming, and the anti-patterns that break real Angular apps. Read this first.
Component catalog for the CometChat Angular UI Kit v5 (@cometchat/chat-uikit-angular@5) — standalone <cometchat-*> selectors, verified @Input bindings, @Output events, @Input callback props, and template slot views. Always loaded before writing any <cometchat-*> HTML. Never invent selectors or bindings — look them up here.
Feature catalog for CometChat Angular UI Kit v5 (@cometchat/chat-uikit-angular@5) — how to enable/configure calls, reactions, mentions, AI (smart replies / conversation starter / summary), polls, stickers, collaborative doc/whiteboard, message translation, link preview. Five-bucket taxonomy: auto-enabled / component-prop / dashboard-extension / AI-with-OpenAI-key / package-install (calls). Verified @Input names against the v5 .d.ts.
Customize the CometChat Angular UI Kit v5 (@cometchat/chat-uikit-angular@5) without forking — four-tier model: Angular @Input slot views → request builders → text formatters + message-action options + per-type bubble views → event bus. Standalone components, ng-template slots, no NgModule, no DataSource.
Angular-specific integration patterns for CometChat UI Kit v5 (@cometchat/chat-uikit-angular@5) — standalone bootstrap with main.ts init-before-bootstrap, functional route guards (CanActivateFn), lazy standalone routes (loadComponent), NgZone correctness for SDK callbacks, OnPush change detection, and SSR/Angular-Universal considerations.
Where to put chat in an Angular UI Kit v5 app — Route-based, Sidebar, Modal/Dialog, Tab-based, and Embedded placements. Each maps to standalone-component composition (no composites, no NgModule) with Angular Router / Material wiring.
Production-readiness for CometChat Angular UI Kit v5 (@cometchat/chat-uikit-angular@5) — server-minted auth tokens via CometChatUIKit.loginWithAuthToken(authToken), user management CRUD, environment.prod.ts hardening (no authKey, no REST API Key), external-backend recipes (Express / Hono / Firebase Functions / Vercel), and the security checklist. Angular ships src/ to the client, so the REST API Key is always server-only.
Push notifications for CometChat Angular UI Kit v5 (@cometchat/chat-uikit-angular@5) — web push via Firebase Cloud Messaging (FCM) + the CometChat Notifications API. Covers dashboard FCM provider setup, the firebase-messaging-sw.js service worker, Notification permission, getting the FCM token, registering it with CometChatNotifications.registerPushToken + PushPlatforms.FCM_WEB AFTER login, an Angular PushService, environment config, foreground vs background handling, click-through routing, and logout cleanup.
CSS-variable theming for the CometChat Angular UI Kit v5 (@cometchat/chat-uikit-angular@5) — the --cometchat-* token reference, brand color overrides, light/dark mode via CometChatUIKit.themeMode and the kit's ThemeService, global styles.css placement, and the ::ng-deep / ViewEncapsulation.None nuance Angular needs. NO theme service palette API (that was v4).
Diagnose CometChat Angular UI Kit v5 (@cometchat/chat-uikit-angular@5) integration failures — peer-dep / Angular-version mismatch, standalone-import 'is not a known element', init-before-render race, assets config, height/layout, NgZone change-detection, CSS-variable theming, SSR 'window is not defined', and production auth-token errors.
Entry-point for adding CometChat Voice & Video Calling to any React, React Native, Angular, native Android, native iOS, or Flutter project. Detects the framework, picks standalone (calls-only) vs additive (calls on top of existing chat) mode, and routes to the per-family calls skill. Invoked by the top-level `cometchat` dispatcher when `product === "voice-video"` or `chat-messaging+voice-video`, and directly when the user asks for calls explicitly.
Testing patterns for CometChat Angular UI Kit v5 (@cometchat/chat-uikit-angular@5) in Angular 17–21 projects. Covers Jasmine/Karma (default) and Jest, Angular TestBed for STANDALONE components (imports[] not declarations[]), mocking the static CometChatUIKit kit API (init/login/getLoggedInUser/getLoggedinUser/loginWithAuthToken/logout) and the loggedInUser$ observable, fakeAsync/tick for Promise-based login, stubbing the kit's standalone <cometchat-*> components, Playwright/Cypress e2e, and CI. Mirrors cometchat-react-testing for the mocking philosophy.
Framework-specific patterns for integrating CometChat React UI Kit v6 into Astro projects using React islands. Covers client:only rendering, island communication, CSS handling, and common pitfalls.
Complete catalog of CometChat React UI Kit v6 components. Reference before writing integration code -- never invent component names.
Customize a CometChat React UI Kit integration beyond what `cometchat init` and `cometchat apply-feature` produce — custom message bubbles, custom header views, custom subtitle views, custom empty/loading states, custom action menus, request builder filters, event listeners, and component composition. Picks up where the framework skills end (after Phase A init succeeds).
Shared rules for CometChat React UI Kit v6. Always loaded alongside framework + placement skills. Read this first.
Claude Skills — questions
Answers built from the skills we actually parsed.