Skills
98,067 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Generate AI-ready metadata for design system components to enable intelligent UI generation. Analyzes component structure and generates structured metadata that helps AI understand when and how to use components correctly. Useful for teams building AI-consumable design systems
Unifies API response patterns across endpoints, including pagination format, error structure, status codes, response envelopes, and versioning strategy. Provides contract documentation, shared TypeScript types, middleware utilities, and a migration plan. Use when standardizing “API contracts”, “response formats”, “API conventions”, or “API consistency”.
Use when building C# applications with .NET 8+, ASP.NET Core APIs, or Blazor web apps. Builds REST APIs using minimal or controller-based routing, configures database access with Entity Framework Core, implements async patterns and cancellation, structures applications with CQRS via MediatR, and scaffolds Blazor components with state management. Invoke for C#, .NET, ASP.NET Core, Blazor, Entity Framework, EF Core, Minimal API, MAUI, SignalR
Use when setting up a new repo, onboarding an existing repo to darkmatter standards, running a compliance check, or when the user says "set up this repo", "bring repo up to standards", "apply template", or "audit repo". Checks and installs the org TypeScript toolchain (Bun catalog, Effect 4, effect-agent, effect-orpc, Postgres-first data, tsgo, oxlint/oxfmt, Vitest, vite-plus, React 19, shadcn), Nix flake-parts devshell, ops/ surface, CI pipeline, and AGENTS.md conventions.
Write a numbered plan with an acceptance check for each step, critique it once in a fresh pass, revise it, then execute one step at a time. Use when a task touches more than one file, has unclear scope, or failed before because steps were missed. Invoke as /ds-plan-loop.
Workspace locales and translations for Factorial Code—`i18n/<locale>.yaml` files, the `fcode.i18n` helper in code and form schemas, execution-locale selection, per-call locale overrides, primary-locale fallback, locale versioning, and the `i18n:*` CLI commands. Use when adding a locale, internationalizing process code or form text, rendering several languages in one execution, or testing and syncing translations
Expert blueprint for open world games including chunk-based streaming (load/unload regions dynamically), floating origin (prevent precision jitter beyond 5000 units), HLOD (hierarchical LOD for distant meshes), persistent state (track entity changes across unloaded chunks), POI discovery systems (compass, markers), and threaded loading (prevent stutters). Use for RPGs, sandboxes, or exploration games. Trigger keywords: open_world, chunk_streaming, floating_origin, HLOD, persistent_state, POI_discovery, threaded_loading.
Invoke for ANY Telegram bot code — `gramio`/`@gramio/*` imports, `new Bot()`, `bot.command`/`bot.callbackQuery`/`bot.on`/`bot.updates.on`, scenes/FSM, inline & reply keyboards, message entities, file uploads, sessions, plugins, webhooks vs long-polling, Telegram Stars, Mini Apps (TMA), broadcasting, Docker. Type-safe TypeScript framework (Node.js/Bun/Deno) with full Bot API coverage. Also covers migrations from Telegraf/grammY/puregram/node-telegram-bot-api. When delegating to a subagent, pass relevant reference files (callback-data, scenes, formatting, context, middleware-routing, ux-patterns) inline — this skill does not auto-load in subagent sessions.
Half-Quadratic Quantization for LLMs without calibration data. Use when quantizing models to 4/3/2-bit precision without needing calibration datasets, for fast quantization workflows, or when deploying with vLLM or HuggingFace Transformers
Provides idiomatic Kotlin implementation patterns including coroutine concurrency, Flow stream handling, multiplatform architecture, Compose UI construction, Ktor server setup, and type-safe DSL design. Use when building Kotlin applications requiring coroutines, multiplatform development, or Android with Compose. Invoke for Flow API, KMP projects, Ktor servers, DSL design, sealed classes, suspend function, Android Kotlin, Kotlin Multiplatform.
Keeps implementation and specs in sync. Use when working on a feature that has a spec in .agents/specs/, when the user says /spec, or when starting implementation of a documented feature. Also use when the user asks to verify implementation against a spec or update a spec after changes.
Turn a rough feature or change into a structured plan document (docs/plans/NNNN-plan-<slug>-YYYY-MM-DD.md) before any code: brainstorm the approach, settle the big decisions, and write a plan that can be hardened and turned into issues. Use when the user says "plan this feature" or "brainstorm a plan/PRD/spec", the front of the plan → grill → file workflow
Comprehensive guide for implementing Syncfusion Angular popup components including Dialog, Predefined Dialogs and Tooltip. Use this when building modal/modeless dialogs, confirmation popups, forms in dialogs, draggable windows, popovers, tooltips, and overlaid content with custom positioning, animations, WCAG 2.2 accessibility, forms integration, and event handling in Angular applications
Develops custom WordPress themes and plugins, creates and registers Gutenberg blocks and block patterns, configures WooCommerce stores, implements WordPress REST API endpoints, applies security hardening (nonces, sanitization, escaping, capability checks), and optimizes performance through caching and query tuning. Use when building WordPress themes, writing plugins, customizing Gutenberg blocks, extending WooCommerce, working with ACF, using the WordPress REST API, applying hooks and filters, or improving WordPress performance and security.
Use when you need to design, review, or improve validation in Quarkus applications — including Bean Validation on JAX-RS resources, @Valid on parameters and CDI beans, constraint groups, @ConfigMapping validation, custom constraints, nested DTO validation, and ExceptionMapper-based error mapping. This should trigger for requests such as Add validation support in Quarkus; Review Quarkus validation rules; Improve request validation in Quarkus REST APIs; Add custom validation constraints in Quarkus; Validate Quarkus @ConfigMapping properties. Part of Plinth Toolkit
Use when implementing iOS 26 SwiftUI features. Covers the Liquid Glass design system, performance improvements, the @Animatable macro, 3D spatial layout, scene bridging, WebView/WebPage, AttributedString rich-text editing, drag-and-drop enhancements, and visionOS integration for iOS 26+
Where to keep state in Bitrix — Config\Option module settings, Config\Feature feature flags, PersistentStorageInterface TTL storage, DeferredStorageDecorator vs cache and session. Use when storing settings, toggles or temporary server state.
Comprehensive toolkit for developing with the CocoIndex library. Use when users need to create data transformation pipelines (flows), write custom functions, or operate flows via CLI or API. Covers ETL workflows for AI data processing, including embedding documents into vector databases, building knowledge graphs, creating search indexes, and processing data streams with incremental updates
Audits a codebase for removable legacy, unused, duplicate, stale, confusing, or overcomplicated pieces before cleanup. Use when the user asks to simplify a repo, remove dead code, find legacy or unused things, fix duplicate wording/files, or research cleanup opportunities; use codebase-design for module-depth checks and improve-codebase-architecture when cleanup becomes an architecture candidate.
Analyzes coupling between modules using the three-dimensional model (strength, distance, volatility) from "Balancing Coupling in Software Design". Use when asking "are these modules too coupled?", "show me dependencies", "analyze integration quality", "which modules should I decouple?", "coupling report", or evaluating architectural health. Do NOT use for domain boundary analysis (use domain-analysis) or component sizing (use component-identification-sizing).
Expert blueprint for real-time strategy games including unit selection (drag box, shift-add), command systems (move, attack, gather), pathfinding (NavigationAgent2D with RVO avoidance), fog of war (SubViewport mask shader), resource economy (gather/build loop), and AI opponents (behavior trees, utility AI). Use for base-building RTS or tactical combat games. Trigger keywords: RTS, unit_selection, command_system, fog_of_war, pathfinding_RVO, resource_economy, command_queue.
Implements accessible modals and drawers with focus trap, ESC to close, scroll lock, portal rendering, and ARIA attributes. Includes sample implementations for common use cases like edit forms, confirmations, and detail views. Use when building "modals", "dialogs", "drawers", "sidebars", or "overlays".
Configures Neon Serverless Driver for Next.js, Vercel Edge Functions, AWS Lambda, and other serverless environments. Installs @neondatabase/serverless, sets up environment variables, and creates working API route examples with TypeScript types. Use when users need to connect their application to Neon, fetch or query data from a Neon database, integrate Neon with Next.js or serverless frameworks, or set up database access in edge/serverless environments where traditional PostgreSQL clients don't work.
Audits and improves project or workspace organization using constraint-first, project-neutral structure rules. Use when Codex needs to scan, reorganize, declutter, or decide where files belong in any app, library, service, data/ML project, infrastructure repo, docs/content project, automation repo, creative asset project, workspace folder, or mixed monorepo
Comprehensive guide for implementing Syncfusion Angular notification components including Message, Skeleton, Toast, and Badge. Use this when displaying informational, success, warning, or error alerts with severity levels, customizing message variants (Text, Outlined, Filled), handling close events, showing content skeletons with shimmer/pulse animations during data loading, or adding status badges with 8 color variants and shape types (circle, pill, notification, dot, overlap). Covers MessageModule, SkeletonModule, ToastModule, CSS-based Badge implementation, accessibility, RTL, and custom styling in Angular applications.
Use when you need to implement or improve Java metrics observability with Micrometer — including meter design, naming/tag conventions, cardinality control, timers/counters/gauges/distribution summaries, percentiles/histograms, Actuator/Prometheus integration, and metrics validation through tests. This should trigger for requests such as Improve metrics; Apply Micrometer; Add metrics observability; Refactor Micrometer instrumentation; Add Micrometer timers counters or gauges to Java services. Part of Plinth Toolkit
Use when you need to design, review, or improve security in Quarkus applications — including Quarkus Security with JWT/OIDC, basic auth, @RolesAllowed / @Authenticated / @PermitAll, SecurityIdentity, permission checks, path-based authorization in configuration, exception mapping for auth failures, and sensitive-data-safe logging. This should trigger for requests such as Add Quarkus security support; Review Quarkus security configuration; Improve API authorization in Quarkus; Add JWT/OIDC security in Quarkus; Harden Quarkus authorization rules. Part of Plinth Toolkit
Bitrix sessions — Application::getSession(), getLocalSession(), kernel session, BX_SECURITY_SESSION_READONLY/VIRTUAL, session section (redis, memcache, database, separated mode). Use instead of $_SESSION, for AJAX lock issues, or session storage
Always-on working style for DeepSeek agents: restate the task, read before editing, take small verified steps, gather evidence before finishing, keep context lean, and provide short reports. Use when starting any coding task, when the user types /ds-mode, or when work starts to drift.
Break out of a repeating failure: name the assumption behind all the failed fixes, test it directly, list three other approaches, pick one, and restart clean if needed. Use when the same error or wrong behavior returns after two fix attempts, or when you notice you are retrying small variations. Invoke as /ds-unstick.
Merges GitHub Pull Requests after validating pre-merge checklist. Use when user wants to merge PR, close PR, finalize PR, complete merge, approve and merge, or execute merge. Runs pre-merge validation (tests, lint, CI, comments), confirms with user, merges with proper format, handles post-merge cleanup.
Hare language skill for simple systems programming. Use when building with hare build/test/run, Hare stdlib, C FFI with @extern, tagged union error handling, or comparing Hare vs C/Zig. Activates on queries about Hare language, hare build, @extern, tagged union, or Hare stdlib.
Analyzes Meta VR and Horizon OS VR performance using Perfetto traces — frame timing, CPU/GPU bottlenecks, render pass analysis. Use when profiling frame drops, jank, or thermal issues on Meta VR devices. Build paths: all Meta VR app stacks; use hz-quest-verify-first if the build path is unclear.
Use this skill when the user needs help solving MoonBit language, code, compiler diagnostic, package, toolchain, backend, FFI, test, or "does MoonBit have X?" questions. Use it even when MoonBit is only implied by .mbt files, moon.mod.json, moon.pkg.json, moon commands, wasm/js/native targets, or mooncakes packages. This skill helps choose the right MoonBit source of truth, discover APIs with moon ide, avoid stale assumptions, and validate fixes.
A broad Sentry API CLI with local search, SQL, export, and MCP surfaces for incident work. Trigger phrases: `check Sentry issues`, `list Sentry projects`, `debug a Sentry event`, `audit Sentry releases`, `search Sentry incidents`, `use Sentry`, `run Sentry`.
Ruby on Rails architecture and coding patterns from Basecamp. Use when writing, reviewing, or refactoring Rails code to follow proven conventions for models, controllers, jobs, and concerns. Triggers on tasks involving Rails models, concerns, controllers, background jobs, or Turbo/Hotwire.
Publish an agent skill to GitHub in one click. Automatically validates SKILL.md, generates or checks a more engaging README, distinguishes the skill name from the GitHub repo name, creates or updates the repository, pushes it, and verifies it by installing it with npx skills. Activates when the user says “发布这个skill,” “publish skill,” “把skill发到GitHub,” “分享这个skill,” or “/publish-skill.” Supports publishing a skill from the current directory or a specified path.
Swift and SwiftUI refactoring patterns aligned with the iOS 26 / Swift 6.2 clinic modular MVVM-C architecture (Airbnb + OLX SPM layout). Enforces @Observable ViewModels/coordinators, App-target `DependencyContainer` + route shells, Domain repository/coordinator/error-routing protocols, and Data-owned I/O with stale-while-revalidate plus optimistic queued sync boundaries. Use when refactoring existing SwiftUI code into the clinic architecture.
Design, secure, and operate Twilio webhook endpoints. Covers inbound event handling, status callbacks, signature validation, connection overrides for retry and timeout tuning, local development tunneling, and production hardening. Use this skill whenever an agent needs to receive HTTP callbacks from Twilio for any product—messaging, voice, verify, or event streams.
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.