Skills
97,905 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
ABI and calling conventions skill for cross-language boundaries. Use when explaining System V AMD64, ARM AAPCS, RISC-V psABI, stack frames, variadic calls, or FFI register rules. Activates on queries about calling convention, ABI, System V AMD64, AAPCS, stack frame, variadic function, or FFI registers.
Orchestrate agile development workflows by invoking commands in sequence with checkpoint-based flow control. This skill should be used when the user asks to 'run the workflow', 'continue working', 'what's next', 'complete the task cycle', 'start my day', 'end the sprint', 'implement the next task', or wants guided step-by-step development assistance. Platform-agnostic git-only workflow without PR integration. Keywords: workflow, orchestrate, agile, task cycle, sprint, daily, implement, review, merge, standup, retrospective, git.
Apidog CLI usage check and version confirmation: use when commands succeed but the client does not show resources, create results cannot be found by list/get, test runs fail, reports are missing, agentHints/help/runtime behavior disagree, or the local CLI may be outdated
Design or refactor product authentication setup for web apps and APIs. Use when choosing hosted/framework-native/platform-native/enterprise-add-on/self-hosted auth, sessions vs JWTs, OAuth/social login, passkeys, org/member models, callback/cookie environment setup, or SSO/SCIM rollout boundaries.
Review Java concurrency code for thread safety, race conditions, deadlocks, and modern patterns (Virtual Threads, CompletableFuture, @Async). Use when user asks “check thread safety”, “concurrency review”, “async code review”, or when reviewing multi-threaded code.
Create technical design documents for new features, systems, refactoring plans, API designs, and database schemas. Use when asked to write a design doc, TRD (technical requirements document), RFC, or system design document. Triggers on requests like "write a design doc for X", "design the Y feature", "create a technical spec", or "plan the architecture for Z".
Expert blueprint for digital card games (CCG/Deckbuilders) including card data structures (Resource-based), deck management (draw/discard/reshuffle), turn logic, hand layout (arcing), drag-and-drop UI, effect resolution (Command pattern), and visual polish (godot-tweening, shaders). Use for CCG, deckbuilders, or tactical card games. Trigger keywords: card_game, deck_manager, card_data, hand_layout, drag_drop_cards, effect_resolution, command_pattern, draw_pile, discard_pile.
Migrate Python OpenAI Agents SDK applications to Pydantic AI and, when warranted, Pydantic AI Harness. Use for `agents.Agent`, `Runner`, function tools, handoffs, guardrails, sessions, human approval, streaming, or `SandboxAgent`. Do not use for applications built directly on the OpenAI Responses API without the Agents SDK runtime.
Evidence-based code review for local diffs, pull requests, and repository audits. Checks design, correctness, tests, compatibility, and operations using a shared engineering baseline plus TypeScript frontend/backend, Go, Rust, and Python packs. Use after implementation, before merging, or when auditing an existing codebase.
Perform language and framework specific security best-practice reviews and suggest improvements. Use when the user explicitly requests security best practices guidance, a security review or report, or secure-by-default coding help. Supports Python, JavaScript/TypeScript, and Go. Do NOT use for general code review, debugging, threat modeling (use security-threat-model), or non-security tasks.
Implement the Syncfusion Blazor Chat UI component for conversational chat interfaces in Blazor applications. Use this skill when creating chat applications, messaging interfaces, or multi-user conversations. Covers message management, user models, typing indicators, avatars, timestamps, and file attachments with customizable templates.
Implement interactive spatial data visualization with Syncfusion Maps component for Blazor. Use this skill when user needs to display geographic data, add markers/polygons to maps, integrate map providers (Google Maps, Bing Maps, Azure Maps, OpenStreetMap), create choropleth visualizations, handle user interactions with maps, export/print maps, support internationalization, implement accessibility features, or customize map styling and appearance.
Implement the Syncfusion Blazor Ribbon component. Use this skill when creating ribbon interfaces, implementing ribbon tabs/groups/items, adding file menus, handling ribbon events, or customizing ribbon styling in Syncfusion Blazor projects. Supports all ribbon item types (Button, Checkbox, DropDown, SplitButton, ComboBox, ColorPicker, GroupButton, Template), file menu operations, gallery items, contextual tabs, backstage view, keyboard navigation with KeyTips, events, theming, and accessibility features.
Write and maintain release-history artifacts for shipped changes: `CHANGELOG.md` updates, release notes, migration/deprecation updates, and lightweight game patch notes. Use when the main job is turning shipped evidence into the smallest truthful release-writing packet for developers, customers, internal stakeholders, or players. Also owns the retired `release-notes` name: turn tickets, PRDs, or Git logs into user-facing notes that lead with the benefit. Triggers on: changelog, release notes, patch notes, migration update, deprecation notice, version notes, what shipped, what changed, what's new, announce product updates. Route internal specs/runbooks to `technical-writing`, API portals to `api-documentation`, end-user tutorials to `technical-writing`, rollout execution to `deployment-automation`, and launch messaging to `marketing-automation`.
Guide for simplifying and refining code after coding sessions. Use when cleaning up complex code, reviewing PRs for readability, or applying consistent refactoring patterns. Triggers on simplify code, refactor, clean up, code review, コード整理, リファクタ, 複雑さ削減, コードレビュー
Translate Figma nodes into production-ready code with 1:1 visual fidelity using the Figma MCP workflow (design context, screenshots, assets, and project-convention translation). Trigger when the user provides Figma URLs or node IDs, or asks to implement designs or components that must match Figma specs. Requires a working Figma MCP server connection.
Emulated Google OAuth 2.0, OpenID Connect, Gmail, Calendar, and Drive for local development and testing. Use when the user needs to test Google sign-in locally, emulate OIDC discovery, handle Google token exchange, configure Google OAuth clients, work with Gmail messages/drafts/threads/labels, manage Calendar events, upload or list Drive files, or work with Google userinfo without hitting real Google APIs. Triggers include "Google OAuth", "emulate Google", "mock Google login", "test Google sign-in", "OIDC emulator", "Google OIDC", "Gmail API", "Google Calendar", "Google Drive", "local Google auth", or any task requiring a local Google API.
Use for HarmonyOS NEXT development help and local DevEco automation. Covers ArkTS/ArkUI/NDK API lookup, offline guide navigation, DevEco Studio and HarmonyOS Emulator tasks, hdc/uitest/aa/bm/hilog/hidumper diagnostics, ArkWeb/WebView DevTools and CDP evidence, and private DevEco interfaces such as CodeGenie, MCP, LanceDB, devecostudio://, ArkUI Inspector, Previewer, Profiler, Doctor, and UxTestService offline UI/UX audits.
Implements drag-and-drop and sortable interfaces with React/TypeScript including kanban boards, sortable lists, file uploads, and reorderable grids. Use when building interactive UIs requiring direct manipulation, spatial organization, or touch-friendly reordering.
Implement comprehensive image editing capabilities in Blazor applications using the Syncfusion Image Editor component. Use this skill when implementing image editing, annotations, transformations, cropping, filtering, zooming, and panning features. Supports annotations (text, shapes, freehand), transformations (crop, rotate, flip, resize), effects (filters, fine-tuning), toolbar customization, and keyboard shortcuts
Use when you need to generate or improve Java project documentation — including README.md files, package-info.java files, and Javadoc enhancements — through a modular, step-based interactive process that adapts to your specific documentation needs. This should trigger for requests such as Improve the code with documentation; Apply documentation; Refactor the code with documentation; Generate README or developer documentation for a Java project; Document Java APIs architecture or project workflows. Part of Plinth Toolkit
This skill should be used when the user asks about "Bankr API", "Bankr Agent API", "how does Bankr work", "Bankr job status", "Bankr response format", or "building on Bankr". Provides endpoint documentation, job patterns, and TypeScript interfaces.
Expert blueprint for desktop platforms (Windows/Linux/macOS) covering keyboard/mouse controls, settings menus, window management (fullscreen, resolution), keybind remapping, and Steam integration. Use when targeting PC platforms or implementing desktop-specific features. Keywords desktop, Windows, Linux, macOS, settings, keybinds, ConfigFile, DisplayServer, Steam, fullscreen.
Expert blueprint for turn-based combat with turn order, action points, phase management, and timeline systems for strategy/RPG games. Covers speed-based initiative, interrupts, and simultaneous turns. Use when implementing turn-based combat OR tactical systems. Keywords turn-based, initiative, action points, phase, round, turn order, combat.
A relentless interview to sharpen a plan or design, which also creates docs (ADR's and glossary) as we go. Use when the grilling session should also leave ADRs and glossary entries behind. Triggers on: grill with docs, grill and document, grill this and write the ADR.
Create diagrams and visualizations using Mermaid.js v11 syntax. Use when generating flowcharts, sequence diagrams, class diagrams, state diagrams, ER diagrams, Gantt charts, user journeys, timelines, architecture diagrams, or any of 24+ diagram types. Supports JavaScript API integration, CLI rendering to SVG/PNG/PDF, theming, configuration, and accessibility features. Essential for documentation, technical diagrams, project planning, system architecture, and visual communication.
Route performance work from the artifact people already have into one measurement-led tuning brief. Use when the main job is locating the tightest latency, throughput, memory, bundle-size, or frame-budget bottleneck; choosing the right trace, query plan, load-test result, profiler capture, or CWV report; naming one bottleneck; and recommending one or two bounded optimizations with before/after verification. Route telemetry rollout to monitoring-observability, correctness diagnosis to debugging, structural cleanup to code-refactoring, validation-policy design to testing-strategies, and engine-specific capture interpretation to game-performance-profiler.
Go implementation and acceptance baseline for PMA-managed service and CLI projects. Covers project layout (cmd/internal), strict linting with golangci-lint, database access, HTTP patterns, layered config, structured logging, observability, and CI quality gates. Use when implementing, scaffolding, upgrading, or validating acceptance of a Go service or CLI; use pma-cr for code-review workflow.
Nine integrated slash commands for complete project lifecycle: /explore-idea, /plan-project, /plan-feature, /wrap-session, /continue-session, /workflow, /release, /brief, /reflect. Use when starting projects, managing sessions across context windows, capturing learnings, or preparing releases. Saves 35-55 minutes per lifecycle.
SOLID principles checklist with Java examples. Use when a class has too many responsibilities, an abstraction leaks, or a dependency points the wrong way, and when the user asks about Single Responsibility, Open/Closed, Liskov, Interface Segregation or Dependency Inversion. For naming, duplication and method length, use clean-code instead
Vite performance optimization guidelines. Use this skill when writing, reviewing, or refactoring Vite configuration and projects to ensure optimal performance patterns. Triggers on tasks involving Vite config, build optimization, dependency pre-bundling, plugin development, bundle analysis, or HMR issues.
Generate images with Model Studio DashScope SDK using Qwen Image generation models (qwen-image, qwen-image-plus, qwen-image-max, qwen-image-2.0 series and snapshots). Use when implementing or documenting image.generate requests/responses, mapping prompt/negative_prompt/size/seed/reference_image, or integrating image generation into the video-agent pipeline.
This skill should be used when the user asks to "implement Bankr client", "write bankr-client.ts", "create API client for Bankr", "common files for Bankr project", "package.json for Bankr", "tsconfig for Bankr", "Bankr TypeScript patterns", "Bankr response types", or needs the reusable client code and common project files for Bankr API integrations.
Investigates distributed application performance using PostHog APM (OpenTelemetry span) data via MCP. Use when the user asks about service traces, slow HTTP/database spans, error spans, error-rate trends or spikes, latency distributions, trace IDs, or span attributes — not AI observability traces or product logs. Uses posthog:apm-service-health, posthog:query-apm-spans, posthog:apm-trace-get, posthog:apm-spans-sparkline, posthog:apm-services-list, posthog:apm-attributes-list, and posthog:apm-attribute-values-list.
nginx C module directive design guidelines for creating admin-friendly configuration interfaces. This skill should be used when designing nginx module directives — deciding what to expose vs hardcode, naming conventions, scope placement, default values, variable design, and validation patterns. Triggers on tasks involving ngx_command_t design, directive naming, configuration API design, nginx module public interface, or directive deprecation.
Turns product or tech specs into concrete Notion tasks that Claude code can implement. Breaks down spec pages into detailed implementation plans with clear tasks, acceptance criteria, and progress tracking to guide development from requirements to completion
Implements React Flow node-based UIs correctly using @xyflow/react. Use when building flow charts, diagrams, visual editors, or node-based applications with React. Covers nodes, edges, handles, custom components, state management, and viewport control.
Choose the smallest viable React/fullstack state owner before comparing libraries. Use when the user needs to classify local UI state, shared subtree/Context state, URL or form state, server-state caches, or client workflow stores such as Zustand / Redux Toolkit / Jotai. Triggers on: global state, prop drilling, Context vs Zustand, Redux Toolkit vs Zustand, server state vs client state, React Router state management, optimistic updates, URL state, form state, and too much state in one store.
Sui CLI client configuration, address management, and token acquisition. Use this skill when the user needs to configure the Sui client for the first time, manage environments or addresses, switch networks, get faucet tokens, check balances, recover keys from a recovery phrase, merge coin objects, or look up transactions on explorers. Also use when the user sees “Cannot find gas coin for signer address” errors or asks about sui client commands, client.yaml, sui.keystore, SuiVision, or Suiscan.
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.