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Found 915 Skills
Modern authentication implementation for 2026 - passkeys (WebAuthn), OAuth (Google, Apple), magic links, and cross-device sync. Use for passwordless-first authentication, social login setup, Supabase Auth, Next.js auth flows, and multi-factor authentication. Activate on "passkeys", "WebAuthn", "Google Sign-In", "Apple Sign-In", "magic link", "passwordless", "authentication", "login", "OAuth", "social login". NOT for session management without auth (use standard JWT docs), authorization/RBAC (use security-auditor), or API key management (use api-architect).
Perform a non-destructive cross-artifact consistency and quality analysis across spec.md, plan.md, and tasks.md after task generation.
Develops CSS and LESS for Magento 2 with responsive design and performance optimization. Use when styling themes, working with LESS, implementing responsive design, or optimizing CSS performance. Masters modern CSS techniques, LESS preprocessing, and cross-browser compatibility.
Use when working with fundamental CLI tools and utilities that are essential for software development across all languages and platforms. Covers shells, version control, system package managers, containers, remote access, HTTP clients, data processing, and build runners. USE FOR: CLI tools, developer tooling, shell scripting, version control, system package managers, containers, remote access, build automation, text processing, choosing cross-platform dev tools DO NOT USE FOR: language-specific package managers (use language-specific skills like npm/pip/cargo), IDE configuration, language-specific build tools (use language-specific skills)
KMP/CMP shared business logic, Compose Multiplatform, expect/actual, Ktor, SQLDelight, and platform-specific implementations. Use when building cross-platform Kotlin applications for Android, iOS, desktop, or web.
Weekly analytics report combining GA4, Google Search Console, and Microsoft Clarity into a premium HTML email. Use for automated Sunday cron jobs that generate weekly product analytics reports. Tracks users, sessions, pageviews, SEO performance (queries, impressions, CTR, position), UX friction (dead clicks, rage clicks, quickbacks), and week-over-week trends. Includes accountability tracking (did we do what we said?), prioritized recommendations with impact/effort ratings, and actionable checklists. Persona: $15K/month SEO consultant. Outputs: HTML email + chat summary.
Use when checking cross-file consistency: tools vs frontmatter, agent references, duplicate rules, contradictions.
Standardize authentication and persistent memory storage using Supabase PostgreSQL. Use when building SaaS apps that need user auth, cross-device sync, and conversation history.
Researches investigative articles, interviews, and news coverage. Use when research needs journalistic sources for cross-referencing or additional context.
Conducts investigative-grade research with primary source analysis, cross-verification, and trial-level depth. Use when an album needs factual research, source material, or verification of claims.
Claude + Gemini Cross Fact-Checking. Conduct independent checks by three parties: Opus itself, Gemini Flash, and Gemini Pro → extract issues → discuss → output a consensus report.
GCC compiler skill for C/C++ projects. Use when selecting optimization levels, warning flags, debug builds, LTO, sanitizer instrumentation, or diagnosing compilation errors with GCC. Covers flag selection for debug vs release, ABI concerns, preprocessor macros, profile-guided optimization, and integration with build systems. Activates on queries about gcc flags, compilation errors, performance tuning, warning suppression, or cross-standard compilation.