Skills
99,951 packaged capabilities and playbooks for agents. Install any of them with one command.
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Bazel build system skill for C/C++ projects. Use when writing BUILD files with cc_library and cc_binary rules, registering toolchains, configuring remote execution, debugging sandbox issues, using query and cquery for dependency graphs, or migrating from CMake to Bazel. Activates on queries about Bazel, BUILD files, cc_library, cc_binary, Bzlmod, bazel query, remote execution, or Bazel toolchain registration.
Walk the user through four directional axes (tone register, aesthetic philosophy, audience relationship, sensory ambition) and produce a structured aesthetic brief that downstream content, copy, design, and art-direction skills consume as required input. The aesthetic depth layer, distinct from `creative-brief` (operational kickoff: scope, audience, deliverables, constraints). Use when a project needs aesthetic coherence across many small decisions and the user has only a vague feeling, or when multiple downstream aesthetic-producing skills need a shared brief. Triggers on creative direction, aesthetic direction, set the aesthetic, define the visual direction, what's the vibe, what's the tone, the four axes. Does NOT fire for a general kickoff brief (use `creative-brief`), tactical single-piece work, already-documented direction, purely functional output, or locked production-stage work
Manage project dependencies across languages, including npm install, package versioning, dependency conflicts, security scanning, and lock files. Use when dealing with dependencies, version pinning, semantic versioning, or resolving conflicts.
Create educational videos using Remotion with Kurzgesagt/回形针 style. Use when users want to: (1) create teaching or educational videos, (2) design video storyboards, (3) produce animated explainer videos, (4) build SVG-based animations for learning content, (5) visualize complex concepts with motion graphics, (6) make science/tech explainer videos, (7) create 可视化讲解视频 or 科普视频. Triggers on requests like '帮我做一个教学视频', 'create an explainer video about X', '制作科普动画', 'make a video explaining Y'. This skill requires remotion-best-practices skill for technical implementation.
Expert patterns for Godot 2D physics including collision layers/masks, Area2D triggers, raycasting, and PhysicsDirectSpaceState2D queries. Use when implementing collision detection, trigger zones, line-of-sight systems, or manual physics queries. Trigger keywords: CollisionShape2D, CollisionPolygon2D, collision_layer, collision_mask, set_collision_layer_value, set_collision_mask_value, Area2D, body_entered, body_exited, RayCast2D, force_raycast_update, PhysicsPointQueryParameters2D, PhysicsShapeQueryParameters2D, direct_space_state, move_and_collide, move_and_slide.
(project - Skill) Generate AI videos using the Volcengine Jimeng Video 3.0 Pro API. Use when users request video generation from text prompts or images, including text-to-video, image-to-video, or any AI-powered video creation. Triggers include “generate video”, “create video”, “AI video”, “Jimeng video”, “text to video”, “image to video”, or any request involving AI-powered video generation from descriptions.
Buffett-style single-stock moat diagnostic — "Would Buffett buy this stock?" Five dimensions: business & moat / financial health / management & capital allocation / valuation & margin of safety / long-term visibility. Data from Longbridge CLI first, MCP fallback, WebSearch only for gaps. Runs cross-statement reconciliation (勾稽校验) BEFORE scoring; data-source appendix closes with a one-line reconciliation summary. Output: star-rated radar card, dimension detail, Buffett-voice narrative, mandatory holding-period education block. Triggers: "巴菲特", "护城河", "巴菲特会买吗", "价值投资", "好生意", "宽护城河", "定价权", "诊股", "巴菲特诊股", "巴菲特视角", "长期持有", "護城河", "巴菲特會買嗎", "價值投資", "寬護城河", "定價權", "診股", "巴菲特診股", "巴菲特視角", "長期持有", "Buffett", "Warren Buffett", "moat", "economic moat", "wide moat", "pricing power", "value investing", "owner earnings", "would Buffett buy", "Berkshire-style", "quality compounder".
Designs, implements, refactors, debugs, reviews, and verifies production-quality NestJS and TypeScript software. Use for NestJS feature development, bug fixes, APIs, libraries, testing, maintainability, developer experience, idiomatic syntax, or syntactic sugar. It inspects the current project and official version-appropriate documentation before selecting syntax, preserves public behavior, and tests the result. When other skills also apply, reconcile ownership before mutation.
Implements and debugs browser Prompt API integrations in JavaScript or TypeScript web apps. Use when adding LanguageModel availability checks, session creation, prompt or promptStreaming flows, structured output, download progress UX, or iframe permission-policy handling. Don't use for server-side LLM SDKs, REST AI APIs, or non-browser providers.
Routing-first responsive layout strategy and verification for web interfaces. Use when the main job is classifying whether the failure is page-shell adaptation, reusable component/container behavior, dense-data or toolbar pressure, responsive media, or reflow verification — then turning vague “breaks on mobile” requests into one concrete strategy packet. Route component API design and system-wide breakpoint/token governance to `design-system`, and accessibility remediation plus broad UI audit work to `web-accessibility`
Use when a Unity 6.3 game targets Android or iOS: phone frame budget, overheating after 20 minutes, 'my game stutters on phones', ASTC or ETC2 textures, audio import, URP mobile settings, touch controls, on-screen joystick, UI under the notch or safe area, slow startup, ANRs, 'Android build fails', AAB, keystore signing, target API 36, Google Play upload, iOS Xcode export or archive, privacy manifest, app size, in-app purchases (IAP 5), rewarded ads (LevelPlay), ad consent.
Rules and guidelines for working with Spring Data JPA in the project. ALWAYS use this skill when adding, removing, or modifying JPA entities, repositories, or projections. Trigger on any request that involves changing entity structure, adding new entities, modifying field annotations, updating database mappings, creating or modifying Spring Data repositories, or defining query projections (interfaces, DTOs).
Films a web app as narrated, zooming, cursor-driven demo videos with retina screenshots, either from a repo it builds and mocks or from a live URL as it is served. Use when the user asks for a demo video, product video, walkthrough, screencast, screen recording of an app or of a URL, hero or landing-page footage, app screenshots for a website, "show off this feature", "record a demo of <url>", or wants to add, re-film, re-narrate or fix a demo scene.
Make 100 versions of Claude fight to the death over one task. Spins up N sub-agents (default 100, --quick for 16), gives every one the exact same task plus a different strategy card (reasoning mode, workflow, strategy), then runs a single-elimination bracket: they attack each other's solutions, defend and revise, and a judge scores every match on a written rubric until one solution survives. Use when the user is not satisfied with an answer, calls it a bad answer, says try again or do better, says "arena", or asks to make them compete
Create, inspect, and update Obsidian JSON Canvas boards with text, file, link, group, and edge nodes. Use for canvas status, canvas lists, visual maps, zones, spatial layouts, adding vault notes or media to a .canvas file, and requests such as create canvas, add to canvas, or put this on the canvas
Intelligently organizes files and folders by understanding context, finding duplicates, and suggesting better organizational structures. Use when user wants to clean up directories, organize downloads, remove duplicates, or restructure projects.
Authors, reviews, installs, and debugs GitHub Agentic Workflows in repositories, including workflow markdown, frontmatter, gh aw compile and run flows, safe outputs, security guardrails, and operational patterns. Use when creating or maintaining GH-AW automation. Don't use for standard deterministic GitHub Actions YAML, generic CI pipelines, or non-GitHub automation systems.
Expert blueprint for responsive UI layouts using Container nodes (HBoxContainer, VBoxContainer, GridContainer, MarginContainer, ScrollContainer, HFlowContainer, SubViewportContainer). Covers size flags, anchors, split containers, virtual_list pooling, stretch_shrink previews, and dynamic layouts. Use when building adaptive interfaces OR implementing responsive menus. Keywords: Container, HBoxContainer, VBoxContainer, GridContainer, HFlowContainer, SubViewportContainer, virtual_list, stretch_shrink, size_flags, EXPAND_FILL, anchors, responsive
Read and write Google Sheets spreadsheets - get content, update cells, append rows, fetch specific ranges, search for spreadsheets, and view metadata. Use when user asks to: read a spreadsheet, update cells, add data to Google Sheets, find a spreadsheet, check sheet contents, export spreadsheet data, or get cell values. Lightweight integration with standalone OAuth authentication supporting full read/write access.
Selects and implements NestJS runtime features, error and API contracts, security, testing, DevOps, performance, and safe scale. Use for middleware, guards, pipes, interceptors, exception filters, typed failures/results, Problem Details, validation errors, HTTP/GraphQL/RPC/gRPC/WebSocket error mapping, deadlines, cancellation, retry classification, fatal process errors, authentication, authorization, caching, queues, schedulers, CI/CD, containers, Kubernetes, configuration and secrets, migrations, supply-chain controls, health probes, logs/metrics/traces, SLOs and alerts, incident recovery, rollout and rollback, event-loop or database bottlenecks, load tests, horizontal scaling, idempotency, backpressure, and graceful shutdown. Do not use for frontend-only performance or non-NestJS services. When other skills also apply, reconcile ownership before mutation.
Compare peer candidate companies across business quality, growth, profitability, valuation, and catalysts, and provide a relative-strength conclusion. Suitable for choosing between two candidate stocks, selecting the strongest companies in an industry, or prioritizing a watchlist.
Authors and structures professional-grade agent skills following the agentskills.io spec. Use when creating new skill directories, drafting procedural instructions, or optimizing metadata for discoverability. Don't use for general documentation, non-agentic library code, or README files.
Use the Supermemory CLI (`supermemory` 5.x on npm) from the terminal or from scripts and agents. Add content, search, read profiles, forget memories, manage documents, namespaces, connectors, API keys and team members, install coding-agent plugins, migrate a project to the v5 API, and run the local self-hosted server. Covers every command, subcommand, flag and the JSON output contract.
Telegram CLI for reading, searching, sending messages, managing groups, and syncing chat history. Use when the user asks about Telegram messages, wants to check inbox, search chats, send messages, mute/unmute chats, kick users, export history, or look up contacts and groups.
Use when you need to apply Java secure coding best practices — including validating untrusted inputs, defending against injection attacks with parameterized queries, minimizing attack surface via least privilege, applying strong cryptographic algorithms, handling exceptions securely without exposing sensitive data, managing secrets at runtime, avoiding unsafe deserialization, and encoding output to prevent XSS. This should trigger for requests such as Review Java code for secure coding; Find input validation risks in Java code; Review Java code for injection vulnerabilities; Improve secure error handling in Java services; Harden Java code against common security flaws. Part of Plinth Toolkit
Build backend AI with Vercel AI SDK v6 stable. Covers Output API (replaces generateObject/streamObject), speech synthesis, transcription, embeddings, MCP tools with security guidance. Includes v4→v5 migration and 15 error solutions with workarounds. Use when: implementing AI SDK v5/v6, migrating versions, troubleshooting AI_APICallError, Workers startup issues, Output API errors, Gemini caching issues, Anthropic tool errors, MCP tools, or stream resumption failures.
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.