Skills
100,928 packaged capabilities and playbooks for agents. Install any of them with one command.
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MATLAB and GNU Octave numerical computing for matrix operations, data analysis, visualization, and scientific computing. Use when writing MATLAB/Octave scripts for linear algebra, signal processing, image processing, differential equations, optimization, statistics, or creating scientific visualizations. Also use when the user needs help with MATLAB syntax, functions, or wants to convert between MATLAB and Python code. Scripts can be executed with MATLAB or the open-source GNU Octave interpreter.
Import Gerber, ODB++, Allegro .brd, .mcm files for PCB boards and IC packages. Inspect nets, layers, shapes, and stackups. TRIGGER: user asks to import, read, or open a PCB layout file. Gerber files use gerberRead or PCBReader; ODB++, Allegro .brd, .mcm, and native formats use pcbFileRead. Also when inspecting nets, layers, components, or stackups from an imported board. Invoke BEFORE writing import code — the query API (cadnet, cadnetList, componentList) is specialized. SKIP: EM analysis or S-parameter extraction (use matlab-analyze-em), PDN/IR-drop analysis (use matlab-analyze-pcb-pdn), building custom geometry (use matlab-assemble-pcb-layout), material/stackup definition only (use matlab-manage-pcb-material).
MaxQuant + Perseus proteomics pipeline: run MaxQuant for LFQ and SILAC; parse proteinGroups.txt in Python; filter contaminants/decoys; log2 + median-normalize; impute MNAR; t-test with FDR; volcano plot; GO/pathway enrichment. Use Proteome Discoverer for Thermo-native processing; FragPipe/MSFragger for GPU-accelerated DB search.
Use Mergify CI commands to upload JUnit test results, detect git references, manage CI scopes, and retrieve merge queue metadata. ALWAYS use this skill when running `mergify ci` or `mergify tests` commands, uploading test results to Mergify, managing Mergify test quarantines, detecting Mergify CI scopes, or reading Mergify merge queue CI context. Triggers on mergify ci, mergify tests, junit-process, Mergify Test Engine, CI Insights, Mergify quarantine, Mergify scopes, scopes-send, git-refs, queue-info.
Inline actor migration for Motoko canisters using `(with migration = ...)` syntax. Use when upgrading canister state, renaming fields, changing field types, or restructuring actor state without the --enhanced-migration flag. For multi-step migration chains, use migrating-motoko-enhanced instead.
Set up, write, and publish documentation sites with Mintlify, and work on existing Mintlify projects. Use when the user wants to create a docs site for a repo or product, turn a docs/ folder or README into a hosted docs site, document an API from an OpenAPI spec, migrate docs from Docusaurus, GitBook, ReadMe, Fern, or another platform, preview docs locally, or publish docs to a shareable URL. Also use when editing a project with docs.json, including pages, navigation, components, API references, and customizing appearance or browser behavior with CSS, JavaScript, React, and snippets.
Build end-to-end MLOps pipelines from data preparation through model training, validation, and production deployment. Use when creating ML pipelines, implementing MLOps practices, or automating model training and deployment workflows.
Use this skill to wire Mockito (the dominant Android mocking framework, exclusively used by androidx itself) into a JVM unit-test suite. Covers `org.mockito:mockito-core:5.x` plus the `org.mockito.kotlin:mockito-kotlin:5.x` Kotlin DSL — `mock<T>()`, `whenever`, `argumentCaptor<T>()`, `any()` / `anyOrNull()` / `eq()`, `MockitoJUnit.rule()` vs `MockitoAnnotations.openMocks(this)` lifecycle, the inline mock-maker for Kotlin final classes (`mock-maker-inline` plugin file), `@SdkSuppress(minSdkVersion = 28)` for instrumented final-class mocks, and the suspend-stubbing escape hatch via `runBlocking`. Use when the user mentions `whenever`, `Cannot mock final class`, `InvalidUseOfMatchersException`, `@Mock null`, `MockitoJUnitRunner`, `argumentCaptor`, `mock-maker-inline`, or asks how to mock with mockito-kotlin.
Merge multiple fine-tuned models using mergekit to combine capabilities without retraining. Use when creating specialized models by blending domain-specific expertise (math + coding + chat), improving performance beyond single models, or experimenting rapidly with model variants. Covers SLERP, TIES-Merging, DARE, Task Arithmetic, linear merging, and production deployment strategies.
Reduce LLM size and accelerate inference using pruning techniques like Wanda and SparseGPT. Use when compressing models without retraining, achieving 50% sparsity with minimal accuracy loss, or enabling faster inference on hardware accelerators. Covers unstructured pruning, structured pruning, N:M sparsity, magnitude pruning, and one-shot methods.
Master ES6+ features including async/await, destructuring, spread operators, arrow functions, promises, modules, iterators, generators, and functional programming patterns for writing clean, efficient JavaScript code. Use when refactoring legacy code, implementing modern patterns, or optimizing JavaScript applications
Train Mixture of Experts (MoE) models using DeepSpeed or HuggingFace. Use when training large-scale models with limited compute (5× cost reduction vs dense models), implementing sparse architectures like Mixtral 8x7B or DeepSeek-V3, or scaling model capacity without proportional compute increase. Covers MoE architectures, routing mechanisms, load balancing, expert parallelism, and inference optimization.
Master monorepo management with Turborepo, Nx, and pnpm workspaces to build efficient, scalable multi-package repositories with optimized builds and dependency management. Use when setting up monorepos, optimizing builds, or managing shared dependencies
Design multi-cloud architectures using a decision framework to select and integrate services across AWS, Azure, and GCP. Use when building multi-cloud systems, avoiding vendor lock-in, or leveraging best-of-breed services from multiple providers.
Consult external LLMs (Gemini, OpenAI/Codex, Qwen) for second opinions, alternative plans, independent reviews, or delegated tasks. Use when a user asks for another model's perspective, wants to compare answers, or requests delegating a subtask to Gemini/Codex/Qwen.
Adjudicate already-collected independent reads of one artifact or question into findings classified by cited evidence alone, never by how many agreed, preserving every original, with one optional caller-run exchange that circulates only disputed citations and records each evidence-caused revision.
Guides adding, changing, and reviewing telemetry through the `@n8n/telemetry` event registry. Use when working on telemetry, analytics, tracking, product events, `track()` calls, or RudderStack/PostHog product events, in frontend or backend code — and whenever you need to find which registered telemetry events exist, what an event means, or what properties it carries.
Create or edit premium images with Pilio Nano Banana Pro through the unified Pilio developer API. Use when the user wants high-quality text-to-image generation, reference-image editing, product posters, campaign visuals, or image composition from one or more local reference images.
Menulis dan menyunting karya ilmiah berbahasa Indonesia yang natural, baku (EYD V, KBBI), dan jujur: artikel jurnal SINTA, prosiding, skripsi, tesis, disertasi, proposal hibah, makalah, laporan penelitian, tinjauan pustaka, abstrak. Pakai saat diminta menulis latar belakang, merapikan bahasa bab, mengoreksi ejaan, menyunting kalimat kaku atau terasa terjemahan, atau membuang pola tulisan AI dalam naskah Indonesia (Indonesian academic writing, proofreading, EYD). Tidak mengubah angka, hasil, atau sitasi; tidak mengarang rujukan; bukan alat lolos detektor AI. Naskah berbahasa Inggris bukan bagiannya.
Best practices for navigation and routing in Flutter using GoRouter, covering hierarchical route trees, type-safe `@TypedGoRoute` definitions, named navigation, redirects, and deep linking setup. Use when creating, modifying, or reviewing routes, deep links, redirects, or navigation logic that uses package:go_router or package:go_router_builder, including widget tests that mock GoRouter or provide it through `InheritedGoRouter`. Also use for call-site navigation, however small: an `onTap`, button, or tap handler that takes the user from one screen to another, choosing between `context.go`, `goNamed`, `context.push`, `pushNamed`, or `pop`, navigating to a path such as `/products/p1`, passing data to a destination, or returning a result to the caller. A one-line navigation call is still navigation work. Route motion belongs to the animations skill, even inside a `GoRouteData` subclass.
Use when integrating `@nestjs-crud/*` (v2.2+) — wiring TypeORM/Drizzle/MikroORM/Prisma adapters, configuring `@Crud()`/`@CrudAuth()`/`@Override()`/`@Feature()`/`@Action()`, opt-in cursor pagination, ACL/RBAC guards via `getFeature`/`getAction` + `nest-access-control`/CASL, DTOs with `CrudValidationGroups`, split-query relation loading, nested `?join=` 400 `Invalid join`, npm `ERESOLVE` on `ioredis`, debugging `RequestQueryException`, `CrudCacheNotConfiguredError`, `EBADENGINE` (Node <22.12), validation-fails-on-update, MikroORM stale-em, savepoints on overridden writes, TS2559 "has no properties in common" on `implements CrudController` with `serviceProperty` (use `CrudControllerFor`).
Complete Next.js data fetching system (Next.js 15.5/16). PROACTIVELY activate for: (1) Server Component data fetching, (2) Parallel and sequential fetching, (3) Streaming with Suspense, (4) Route Handlers (API routes), (5) Client-side fetching with SWR/TanStack Query, (6) generateStaticParams for static generation, (7) Revalidation strategies, (8) Error handling for data, (9) Async params/searchParams (Next.js 16), (10) Cache Components with 'use cache'. Provides: Fetch patterns, caching options, streaming UI, API route handlers, client fetching setup, async params pattern. Ensures optimal data loading with proper caching and error handling.
Build production-ready Node.js backend services with Express/Fastify, implementing middleware patterns, error handling, authentication, database integration, and API design best practices. Use when creating Node.js servers, REST APIs, GraphQL backends, or microservices architectures.
Use for applicant-facing diagnosis or re-audit of a Chinese NSFC (国自然) application draft — 本子把脉、本子体检、帮我看国自然本子、申请书修改建议、标书逻辑诊断、青年/面上/地区基金申请书修改、对照已中本子、科学问题凝练、代表作支撑、选题撞题核查 or 申请代码检查. Accepts PDF/DOCX/Markdown/text and checks title, abstract, rationale, key scientific questions, research contents, innovation, feasibility, research basis and cross-section consistency, calibrated to the application year and form. Does not write applications from scratch or provide formal expert-review opinions.
Run graph queries on Obsidian vault link structure: neighbors (N hops), shortest path, connected clusters, hub notes, bridge/articulation points, enriched orphans, relationship summaries, vault-wide statistics. Supports configurable frontmatter relationship fields. Use for: knowledge graph, note relationships, graph query, link analysis, note connections, hub notes, cluster analysis, bridge notes, relationship summary, vault stats, find path between notes, analyze connections, show orphans, 筆記關係, 連結分析, 孤立筆記, 知識圖譜, 樞紐筆記, vault 統計.
A dialogue-style Skill that helps you reflect without blame on situations where you are stuck at work, in study, in housework, or in personal projects, using five steps as clues to find unseen assumptions and the next step. Use it when you want to sort out procrastination, perfectionism, fear of starting or submitting, or a stall after trying. Not for simple execution, explanation, minor fixes, or comprehensive planning.
Query and analyze scholarly literature using the OpenAlex database. This skill should be used when searching for academic papers, analyzing research trends, finding works by authors or institutions, tracking citations, discovering open access publications, or conducting bibliometric analysis across 240M+ scholarly works. Use for literature searches, research output analysis, citation analysis, and academic database queries.
Cross-platform, hardware-adaptive system optimizer. Auto-detects macOS / Linux / WSL / Windows (MINGW/Cygwin/MSYS2) and CPU/RAM/disk/GPU profile, then picks the right cleanup strategy. Scans reclaimable disk space, memory pressure, runaway processes, startup bloat, network issues. CleanMyMac built into Claude Code.
Optimizes transformer attention with Flash Attention for 2-4x speedup and 10-20x memory reduction. Use when training/running transformers with long sequences (>512 tokens), encountering GPU memory issues with attention, or need faster inference. Supports PyTorch native SDPA, flash-attn library, H100 FP8, and sliding window attention.
Use the public `orca` CLI to operate Orca-managed worktrees, folder contexts, terminals, repos, automations, artifacts, worktree comments, and the browser embedded inside the Orca app. Use when the user says "$orca-cli", "use orca cli", "Orca worktree", "child worktree", "cardStatus", "spawn codex/claude in a worktree", "read/wait/send Orca terminal", "terminal send", "full handoff", "handover", "give this to another agent", "another worktree", "Orca browser", "orca artifacts", "share HTML/Markdown", "public artifact link", or "control the browser inside Orca". Prefer this over raw `git worktree`, ad hoc PTYs, Playwright, or Computer Use when the task touches Orca-managed state. Use Computer Use for browser windows, webviews, or desktop UI outside Orca's embedded browser.
Use this skill to organize Android test source sets — `src/test/`, `src/androidTest/`, the community `src/sharedTest/` convention, and the modern KMP-style `androidHostTest` / `androidDeviceTest` split that Compose itself adopted after AGP 7.2 broke the classic `sourceSets` wiring. Includes the `testImplementation` / `androidTestImplementation` / `debugImplementation` configuration matrix per Google's `/training/testing/local-tests` and `/training/testing/instrumented-tests` pages. Use when the user asks "where do I put my tests", "test or androidTest", "sharedTest setup", "AGP 7.2 broke my sourceSets", "androidHostTest vs androidDeviceTest", "testImplementation vs androidTestImplementation vs debugImplementation", or "why is my Robolectric test in androidTest".
This skill adds data(like resources) to OpenViking Context Database (aka. ov). Use when an agent needs to add files, data from URLs, or external knowledge during interactions. Trigger this tool when 1. is explicitly requested adding files or knowledge; 2. identifies valuable resources worth importing; 3. the user mentioned adding to OV/OpenViking/Context Database. This skill helps how to use CLI like `ov add-resource`, `ov add-skill` and `ov add-memory` to add resource data, skill files, memory files to OpenViking.
Web application logic mapper for spidering, crawling, hidden API discovery, workflow mapping, state-machine analysis, route relationships, and handoff targets for authz, business logic, XSS, input/protocol, OOB, CVE, exploit, or reporting workflows.
Simulates SSL stripping / HTTPS downgrade attacks using sslstrip, Bettercap, and mitmproxy in authorized lab environments to test HSTS enforcement, certificate validation, and HTTPS upgrade mechanisms. Use when performing an authorized penetration test to validate HSTS preloading and TLS certificate handling, demonstrate downgrade-attack risk to stakeholders, or train SOC teams to detect SSL stripping indicators in network traffic.
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.