Skills
97,222 packaged capabilities and playbooks for agents. Install any of them with one command.
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INVOKE THIS SKILL when creating evaluation datasets, uploading datasets to LangSmith, or managing existing datasets. Covers dataset types (final_response, single_step, trajectory, RAG), CLI management commands, SDK-based creation, and example management. Uses the langsmith CLI tool.
OmniStudio Data Mapper (formerly DataRaptor) creation and validation with 100-point scoring. Use when building Extract, Transform, Load, or Turbo Extract Data Mappers, mapping Salesforce object fields, or reviewing existing Data Mapper configurations. TRIGGER when: user creates Data Mappers, configures field mappings, works with OmniDataTransform metadata, or asks about DataRaptor/Data Mapper patterns. DO NOT TRIGGER when: building Integration Procedures (use omnistudio-integration-procedure-generate), authoring OmniScripts (use omnistudio-omniscript-generate), or analyzing cross-component dependencies (use omnistudio-dependencies-analyze).
Stand up Grafana Mimir for horizontally scalable, multi-tenant, long-term Prometheus + OTLP metrics storage. Covers monolithic / read-write / microservices deployment, S3 / GCS / Azure / filesystem block storage, Prometheus `remote_write` and OTLP ingestion, multi-tenancy with `X-Scope-OrgID`, ingester replication factor, compactor retention, and per-tenant limits. Use when running Mimir locally or on Kubernetes (Helm `mimir-distributed`), scaling Prometheus past a single node, picking ingest / query / backend split, configuring tenants and ingestion rate, debugging `/ready` 503s or `429 Too Many Requests`, or pointing Grafana at a Mimir datasource — even when the user says "I need long-term Prometheus storage", "scale Prometheus", "multi-tenant metrics backend", "Cortex replacement", "remote_write target", or "store 10M active series" without naming Mimir
OmniStudio OmniScript creation and validation with 120-point scoring. Use when building guided digital experiences, multi-step forms, or interactive processes that orchestrate Integration Procedures and Data Mappers. TRIGGER when: user creates OmniScripts, designs step flows, configures element types, or reviews existing OmniScript configurations. DO NOT TRIGGER when: building FlexCards (use omnistudio-flexcard-generate), creating Integration Procedures directly (use omnistudio-integration-procedure-generate), or analyzing dependencies (use omnistudio-dependencies-analyze).
Continuously profile applications with Grafana Pyroscope and read the result as flame graphs. Covers three instrumentation paths — language SDK push (Go / Java / Python / Ruby / Node / .NET / Rust), Alloy eBPF auto-instrumentation (no code change, requires kernel 5.8+ with BTF), and SDK → Alloy receiver — plus ProfileQL queries, profile types (CPU / memory / allocations / goroutines / mutex), Grafana Cloud Profiles endpoint, and Span Profiles trace-to-profile linking. Use when adding profiling to a service, deploying Alloy as a cluster-wide eBPF profiler, hunting CPU / memory hotspots from a flame graph, comparing two profiles to find a regression, or correlating a slow Tempo trace to its profile — even when the user says "find what's burning CPU", "flame graph this app", "continuous profiling", "heap hotspots", or "why is allocation so high" without naming Pyroscope.
GitHub Actions security review for workflow exploitation vulnerabilities. Use when asked to “review GitHub Actions”, “audit workflows”, “check CI security”, “GHA security”, “workflow security review”, or review .github/workflows/ for pwn requests, expression injection, credential theft, and supply chain attacks. Exploitation-focused with concrete PoC scenarios.
Cross-cutting OmniStudio analysis skill for namespace detection, dependency visualization, and impact analysis across OmniScripts, FlexCards, Integration Procedures, and Data Mappers. TRIGGER when: user asks about OmniStudio dependencies, wants namespace detection (Core vs vlocity_cmt vs vlocity_ins), needs impact analysis, requests dependency graphs or Mermaid diagrams, or asks which components are affected by a change. DO NOT TRIGGER when: authoring OmniScripts (use omnistudio-omniscript-generate), building FlexCards (use omnistudio-flexcard-generate), creating Integration Procedures (use omnistudio-integration-procedure-generate), or configuring Data Mappers (use omnistudio-datamapper-generate).
Create distinctive, production-grade frontend interfaces with strong visual direction, polished typography, considered layout, and working HTML/CSS/JS or framework code. Use for websites, landing pages, dashboards, React components, application screens, and UI beautification.
Salesforce Industries Common Core (OmniStudio/Vlocity) Apex callable generation and review skill with 120-point scoring. Use when creating, reviewing, or migrating Industries callable Apex implementations. TRIGGER when: user creates or reviews System.Callable classes, migrates VlocityOpenInterface or VlocityOpenInterface2, or builds Industries callable extensions used by OmniStudio, Integration Procedures, or DataRaptors. DO NOT TRIGGER when: generic Apex classes or triggers (use platform-apex-generate), building Integration Procedures (use omnistudio-integration-procedure-generate), authoring OmniScripts (use omnistudio-omniscript-generate), configuring Data Mappers (use omnistudio-datamapper-generate), or analyzing namespace/dependency issues (use omnistudio-dependencies-analyze).
Rails 7+ specialist that optimizes Active Record queries with includes/eager_load, implements Turbo Frames and Turbo Streams for partial page updates, configures Action Cable for WebSocket connections, sets up Sidekiq workers for background job processing, and writes comprehensive RSpec test suites. Use when building Rails 7+ web applications with Hotwire, real-time features, or background job processing. Invoke for Active Record optimization, Turbo Frames/Streams, Action Cable, Sidekiq, RSpec Rails.
OmniStudio FlexCard creation and validation with 130-point scoring. Use when building at-a-glance UI cards, configuring data source bindings to Integration Procedures, or reviewing existing FlexCard definitions for accessibility and performance. TRIGGER when: user creates FlexCards, configures data sources, designs card layouts, or asks about OmniUiCard metadata. DO NOT TRIGGER when: building OmniScripts (use omnistudio-omniscript-generate), creating Integration Procedures (use omnistudio-integration-procedure-generate), or analyzing dependencies (use omnistudio-dependencies-analyze).
OmniStudio Integration Procedure creation and validation with 110-point scoring. Use this skill when building server-side process orchestrations that combine Data Mapper actions, Apex Remote Actions, HTTP callouts, and conditional logic. TRIGGER when: user creates Integration Procedures, adds Data Mapper steps, configures Remote Actions, or reviews existing IP configurations. DO NOT TRIGGER when: building OmniScripts (use omnistudio-omniscript-generate), creating Data Mappers directly (use omnistudio-datamapper-generate), or analyzing cross-component dependencies (use omnistudio-dependencies-analyze).
Use as the WordPress Playground routing wrapper for ambiguous Playground work, local CLI runs with @wp-playground/cli, playground.wordpress.net share links, browser previews, WebMCP site tools, snapshots, mounts, version switching, and Xdebug. For Blueprint JSON authoring or review, use the blueprint skill directly.
Write professional press releases for any occasion, media type, and region. Use when the user wants to write, draft, or improve a press release, communiqué de presse, media announcement, or news release — including product launches, funding rounds, partnerships, crisis communications, executive hires, events, M&A, and open source milestones. Covers media targets (print, digital/wire, broadcast, social/SMPR, trade press) and region-specific conventions worldwide. Also trigger on 'I need to announce something' or 'how do I tell the press about X'. Do NOT use for blog posts or technical articles — use samber/cc-skills@technical-article-writer instead; for newsletter issues, use samber/cc-skills@substack-ghostwriting
Detects missing zeroization of sensitive data in source code and identifies zeroization removed by compiler optimizations, with assembly-level analysis, and control-flow verification. Use for auditing C/C++/Rust code handling secrets, keys, passwords, or other sensitive data.
Debug logging, Debug menu, runtime pitfalls, typing-latency-sensitive paths, SwiftUI list snapshot boundaries, OS-version repros, and local visual iteration for cmux. Use when adding debug probes, diagnosing UI/runtime issues, touching terminal rendering, tab/sidebar list views, drag/drop UTTypes, or using the Debug menu
Information question-extraction machine. Given an article, paper, or book, extract its core ideas as Q-A pairs — the Question cuts to the vital point, not textbook-like; the Answer is concise and clear, with a formal closure and a complete logical chain. Readers follow the chain of Q, and each A drives in a nail, reproducing the author's entire reasoning. Use when the user says "Q&A", "QA", "ask questions", "extract questions", "/ljg-qa", or shares an article/paper/book and asks for Q-A extraction. Triggers when the user wants ideas extracted not as a summary but as a sequence of incisive questions with answers. NOT for FAQ generation, glossary creation, or comprehension quizzes — this is intellectual scaffolding, not study aids.
Scaffold a music company's working OS in its own repository, with a self-managing workspace, read-only health checks, reusable knowledge and portable skills. Use for "set up our label OS", "build our publishing workspace", "organize our catalog operations repo", or "mirror my roster into folders". Select the actual core objects (artists/releases, compositions/parties or catalog cases); use supported Recoup records when available and private file workflows otherwise. No artist roster, valuation or account claim is required for every music business.
Salesforce Industries DataPack deployment automation using Vlocity Build. TRIGGER when: user deploys or validates OmniStudio/Vlocity DataPacks with vlocity commands (packDeploy/packRetry/packExport/packGetDiffs), sets up DataPack CI/CD pipelines, or troubleshoots DataPack migration errors. DO NOT TRIGGER when: deploying Salesforce metadata with sf project deploy (use platform-metadata-deploy), authoring OmniStudio artifacts (use omnistudio-*-build), or writing Apex/LWC business logic (use platform-apex-generate/experience-lwc-generate).
Personalized 1-on-1 AI tutor using Bloom's 2-Sigma mastery learning. Guides users through any topic with Socratic questioning, adaptive pacing, and rich visual output (HTML dashboards, Excalidraw concept maps, generated images). Use when user wants to learn something, study a topic, understand a concept, requests tutoring, says 'teach me', 'I want to learn', 'explain X to me step by step', 'help me understand', or invokes /sigma. Triggers on: learn, study, teach, tutor, understand, master, explain step by step.
Use this skill when rendering live HTML/DOM elements (or frozen snapshots of them) as PixiJS v8 textures via the EXPERIMENTAL HTML-in-Canvas browser APIs. Covers the pixi.js/html-source import, feature detection with canvas.requestPaint, HTMLSource for a live, repainting, still-interactive element (autoLayout/autoUpdate/autoRequestPaint, requestPaint, isReady, HTMLSource.defaultOptions, the direct-child-of-canvas + layoutsubtree requirement), ElementImageSource for an immutable captureElementImage() snapshot (autoClose, ready immediately), using the source on a Sprite/Texture/Mesh, fallback-only auto-detection via Texture.from at priority -10, uploader error messages, and destroy/cleanup. Triggers on: HTMLSource, ElementImageSource, ElementImage, HTML in canvas, render DOM to texture, render HTML to texture, texElementImage2D, copyElementImageToTexture, HTMLSourceOptions, ElementImageSourceOptions, HTMLSourceCanvas.
Add or attach an artist to your roster and enrich them — verify Spotify identity, resolve the artist in the requested workspace, then research, catalog, socials and knowledge base. Supports deliberate manual onboarding when Spotify identity is unavailable. Use for "create/add/onboard an artist", "set up [artist]", "we just signed [artist]", or "new signing". To see your roster use recoup-roster-list-artists; to work inside an existing artist's files use recoup-roster-manage-artist.
Work inside one artist's folder — read and update their context, brand, songs, and releases. Use for "organize [artist]'s files", "update [artist]'s brand/context", "what's in [artist]'s workspace", or any task about a named artist's files. To list your whole roster use recoup-roster-list-artists; for research/metrics on an artist use recoup-research-artist-overview.
Apply when designing types, reviewing a function signature, or writing code in any statically-typed language. Make illegal states unrepresentable, brand semantic primitives, parse external data at boundaries, exhaust variants, derive from authoritative schemas.
See who's on your roster — answers "what artists do I have" by walking the workspace and falling back to your live account when the filesystem is empty. Use for "what artists do I have", "list my roster", "who's on my roster", or "what's in this sandbox". To add a new artist use recoup-roster-add-artist; to work inside one artist's files use recoup-roster-manage-artist.
Salesforce Industries CME EPC product-modeling skill for Product2-based catalog creation. Use when creating EPC products, configuring product attributes, building offer bundles with Product Child Items, or reviewing EPC DataPack JSON metadata for product catalog changes. TRIGGER when: user creates or updates Product2 EPC records, AttributeAssignment payloads, AttributeMetadata/AttributeDefaultValues, Offer bundles, or ProductChildItem relationships. DO NOT TRIGGER when: designing OmniScripts/FlexCards/Integration Procedures (use omnistudio-omniscript-generate, omnistudio-flexcard-generate, or omnistudio-integration-procedure-generate), implementing Apex business logic (use platform-apex-generate), or troubleshooting deployment pipelines (use platform-metadata-deploy).
Write, optimize, and grow Substack content — newsletter issues (email-first) and web posts (web-first essays). Covers voice matching, Substack algorithm and Notes strategy, email formatting, SEO, growth tactics, and paid-subscriber monetization. Use when the user mentions Substack, a newsletter issue, a Substack post or article, evergreen content, newsletter growth, Notes, paid subscribers, 'ghostwrite for', or 'write in the style of' — and for newsletter or essay writing even when Substack is not named, or when adapting a blog post, talk, or thread into newsletter format. Do NOT use for generic blog post writing without a newsletter context — use samber/cc-skills@technical-article-writer instead
Provides guidance and instructions on managing remote devices on Developer Device Platform (DDP). Use when reserving remote Android devices, establishing connection tunnels, checking session status, or extending/cancelling leases. Don't use for iOS or local device/hardware inquiries.
Draws the 12 Houses of the Zodiac Tarot spread to inject entropy into planning when prompts are vague, ambiguous, or casually delegated. Interprets the spread to guide next steps. Use when the user says 'let fate decide', 'YOLO', 'whatever', 'idk', or other nonchalant phrases, makes Yu-Gi-Oh references, or when you are about to arbitrarily pick between multiple reasonable approaches. Prefer over asking clarifying questions when the user's tone is casual or playful rather than precision-seeking.
Develop, debug, and manage Temporal applications across Python, TypeScript, Go, Java, .NET, Ruby, and Rust. Use when the user is building workflows, activities, workers, or background job queues with a Temporal SDK, debugging issues like non-determinism errors, stuck workflows, or activity retries, using Temporal CLI, Temporal Server, or Temporal Cloud, running Temporal with Docker Compose, or working with durable execution concepts like signals, queries, heartbeats, versioning, continue-as-new, child workflows, or saga patterns. Also use when the user mentions "run a Temporal workflow from the CLI", "start a dev server", "run temporal server start-dev", "temporal workflow start", "temporal workflow execute", "temporal workflow signal", "temporal workflow query", "temporal workflow update".
Autonomously diagnoses GKE JobSet interruptions, restarts, and preemptions for AI/ML training workloads. Use when troubleshooting JobSet restart loops, spot VM preemptions, node readiness failures, host VM issues, or coordinator worker crashes. Don't use for general GKE cluster creation, basic workload deployment, or non-JobSet application issues.
Generate read-only MongoDB queries (find) or aggregation pipelines using natural language, with collection schema context and sample documents. Use this skill whenever the user asks to write, create, or generate MongoDB queries, wants to filter/query/aggregate data in MongoDB, asks "how do I query...", needs help with query syntax, or discusses finding/filtering/grouping MongoDB documents. Also use for translating SQL-like requests to MongoDB syntax. Does NOT handle Atlas Search ($search operator), vector/semantic search ($vectorSearch operator), fuzzy matching, autocomplete indexes, or relevance scoring - use search-and-ai for those. Does NOT analyze or optimize existing queries - use mongodb-query-optimizer for that. Does NOT handle aggregation pipelines that involve write operations. Requires MongoDB MCP server.
Interactive quiz that maps your AI/ML knowledge to a starting point in the 523-lesson, 20-phase AI Engineering from Scratch curriculum. Trigger phrases: "where should I start", "find my level", "what do I know", "which phase", "assess my knowledge", "placement test", "skip ahead"
CLI for querying Prometheus and PromQL-compatible engines (Thanos, Cortex, VictoriaMetrics, Grafana Mimir, Grafana Tempo...) — instant queries, range queries, metric discovery (metrics/labels/meta subcommands), output formats (table/csv/json/graph). Apply when executing PromQL queries, troubleshooting performance issues on a software having observability, investigating latency/error rates/saturation, or analyzing time series data.
Session retrospective for improving marimo-pair and marimo._code_mode. Use to analyze friction from a pairing session, identify what went wrong, and brainstorm improvements to the skill docs or underlying API. Trigger on: “retro,” “what went wrong,” “improve the skill,” “session review,” “friction,” or /retro-marimo-pair.
Provides connectivity, authentication, and troubleshooting guidance for Amazon RDS for SQL Server. Applicable when users ask about SSMS times out connecting from EC2, Cannot generate SSPI context with Windows auth, connect RDS SQL Server from Lambda with pymssql, auth_scheme shows NTLM instead of KERBEROS on ECS Fargate, SSM tunnel to RDS SQL Server from laptop, port 1433 security group, TrustServerCertificate=True for localhost tunnels, SPN MSSQLSvc, AWS Managed Microsoft AD, CNAME not RDS endpoint for Kerberos, tds_version='7.4', encryption='require', port-as-string for pymssql, Secrets Manager credential caching in Lambda, error 18456 login failed. Covers Python (pymssql, pyodbc), .NET (Microsoft.Data.SqlClient), Java (JDBC mssql-jdbc), Node.js (tedious), IAM auth via RDS Proxy, and VPC/ECS/EKS/Lambda deployment.
Designs and implements production-grade RAG systems by chunking documents, generating embeddings, configuring vector stores, building hybrid search pipelines, applying reranking, and evaluating retrieval quality. Use when building RAG systems, vector databases, or knowledge-grounded AI applications requiring semantic search, document retrieval, context augmentation, similarity search, or embedding-based indexing.
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.