Skills
100,928 packaged capabilities and playbooks for agents. Install any of them with one command.
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Run a structured after-action review (postmortem, retrospective) of a launch, incident, or completed project to capture the timeline, root cause analysis, contributing factors, and actionable lessons. Use whenever the user wants an after-action report, AAR, postmortem, retrospective, retro, post-incident review, “what went well and what didn’t,” lessons learned, blameless postmortem, root cause analysis, RCA, or five whys. Also use when the user has just shipped something or resolved an incident and wants to capture lessons.
This skill should be used when working with annotated data matrices in Python, particularly for single-cell genomics analysis, managing experimental measurements with metadata, or handling large-scale biological datasets. Use when tasks involve AnnData objects, h5ad files, single-cell RNA-seq data, or integration with scanpy/scverse tools.
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+
Game clothing in Blender 5.2 - garments from body regions (ease offset, thickness), skin-weight transfer, hiding covered body faces, cloth-sim draping for folds, body-morph shape keys on garments, layered clothing, pose-aware poke-through checks, sim-to-game-mesh cleanup. Use for shirts, pants, armor, outfits, layered or swappable clothing.
Use this skill when users need to develop brand strategy, choose a company name, define brand positioning, create brand voice, or build brand identity from day one. Activates for "what should I name it," "brand strategy," "positioning," or identity questions.
Build a semantic inventory of local B-roll assets for edit planning. Use this when the goal is not yet to decide the final cut, but to understand what B-roll exists, what each asset proves, which ranges are usable, and how the asset library should be packaged for downstream matching.
Assesses technical debt by identifying, classifying, and prioritizing maintainability problems to help teams build a refactoring roadmap, drawing on twelve classic engineering books. Triggers when the user asks about technical debt, refactoring priorities, what to clean up first, or asks “why is this so hard to change?”, “what should we fix first?”, or “how do I justify refactoring to management?”. Do not trigger for server health checks, HTTP /health endpoints, Kubernetes probes, database health, or application uptime—“health” in those contexts refers to infrastructure, not code quality. Also not for single-function refactoring questions.
Drive a REAL browser and native apps the way a user would — not fetch raw HTML — through the persistent `browse` CLI: one long-lived headless Chromium (plus iOS, Android, and macOS apps via accessibility APIs) where goto, snapshot, click, fill, JavaScript, and screenshot share session state at ~100ms/command and interaction rides stable @eN refs, not brittle selectors. Use when verifying, navigating, or automating live web or app behavior beyond what code-reading or a raw fetch reveals
Orchestrate a full China stock research workflow by first identifying the company's analysis patterns, then selecting and sequencing the right core research skills, optional overlays, and final output structure. Use this skill when starting a new stock deep-dive or when a user wants one unified, source-backed research framework instead of isolated module outputs.
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
How to author a content brief that actually guides a writer (human or AI) to produce a piece that ranks, converts, or both. Per-piece editorial brief: target keyword and cluster, search intent, audience and JTBD, heading structure, entity coverage for AEO/GEO, internal linking strategy, success criteria. The middle path between thin briefs (a keyword and a deadline) and thick briefs (a 4-page document nobody reads). Triggers on content brief, brief the writer, brief the article, brief authoring, content brief template, brief audit, per-piece brief, editorial brief, target keyword brief, search intent brief. Also triggers when briefing a human writer or an AI agent on a single content piece.
Creates structured Request for Comments (RFC) documents for proposing and deciding on significant changes. Use when the user says “write an RFC,” “create a proposal,” “I need to propose a change,” “draft an RFC,” “document a decision,” or needs stakeholder alignment before making a major technical or process decision. Do not use for TDDs/implementation docs (use technical-design-doc-creator instead), README files, or general documentation.
Use when: User wants to extend Docker with custom tools, personalize the Docker environment, or set up user-specific Docker customization. Triggers: 'extend docker', 'docker-extend', 'add tools to docker', 'customize docker', 'add my tools to the container', 'personalize docker setup', 'docker user setup', 'install tools in docker'. Does: Interactively sets up Dockerfile.user and docker-compose.override.yml so users can add personal tools to their Docker environment without affecting maintainer files or committing user-specific config to git.
Use when writing or reviewing anything read as true: a decision record, ADR, README, acceptance report, runbook, changelog, audit finding, or claim of verification. Applies the ten canons of evidence-backed docs. Not for drafts, chat answers, or commit messages; 'без доков' opts out.
Debug and inspect LLM/AI agent traces using PostHog's MCP tools. Use when the user pastes a trace or session URL (e.g. /ai-observability/traces/<id> or /ai-observability/sessions/<id>), asks to debug a trace, figure out what went wrong, check if an agent used a tool correctly, verify context/files were surfaced, inspect subagent behavior, investigate LLM decisions, or analyze token usage and costs. Also use when raw SQL/HogQL against `events.properties.$ai_input` / `$ai_output_choices` returns empty — message content lives only on the dedicated `posthog.ai_events` table.
Writes, rewrites, and critiques messages, posts, review comments, tickets, PRDs, design docs, talk scripts, docs, READMEs, and copy as the user or their company, in a private profile's voice with machine tells stripped. Use when asked to "write this in my voice", "draft a Slack reply", "make this sound less like AI", "write the README", "critique my draft", or "write my Slack profile".
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.
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.
Hunt CI/CD pipeline vulnerabilities — GitHub Actions workflow injection (pull_request_target Pwnrequest + ${{ }}-into-shell), self-hosted runner poisoning, OIDC trust-policy abuse, Jenkins script-console RCE and CVE-2024-23897 file read, GitLab CI runner-token registration, Terraform state file leakage, artifact/log secret leakage, pipeline env-var disclosure. Use when target has a public GitHub/GitLab org, exposed CI dashboards (Jenkins/TeamCity/Drone/Argo), or build artifacts/images are reachable
Expert-level JavaScript testing skill focused on writing high-quality tests that find bugs, serve as documentation, and prevent regressions. Advocates property-based testing with fast-check and protects against indeterministic code in tests. Does not cover black-box e2e testing.
Use when creating, extending, debugging, or publishing a Lightweight Charts™ plugin—a custom series, a series primitive, or a pane primitive—or when turning a chart idea (“I want the chart to show/draw X”) into a working plugin. Covers choosing the plugin type, scaffolding with create-lwc-plugin, building on @tradingview/lwc-toolkit instead of hand-rolled helpers, which official plugin packages to use as references, where the docs are, and the autoscale, whitespace, visible-range, hit-test, and conflation mistakes every plugin author makes once. Use whenever the user mentions a custom series, primitive, renderer, drawing on the chart canvas, lwc-plugin, plugin-examples, the toolkit, or the plugin catalog—even if they never say the word “plugin”.
Evaluate an organization's AI maturity on the steps of AI adoption and write a polished, shareable HTML report with evidence for each score. Use when a champion wants to know where their org or team stands, or to compare with an earlier report
OpenMAIC assistant for setting up, generating, and extending OpenMAIC. Use when the user wants to use OpenMAIC, generate a multi-agent interactive classroom, or build on, extend, or customize OpenMAIC and its @openmaic/* SDK (secondary development). Covers Live Demo or local setup, startup modes, provider keys, classroom generation, and secondary development (forking, providers/storage/themes, routes, or the renderer/editor).
A discipline for running paid media without burning through the budget. Covers hypothesis writing for paid spend, channel selection, budget allocation, audience targeting, bid strategy, campaign types, what not to spend on, attribution realities, and failure modes that lead to costly lessons. Triggers on paid media strategy, ad budget allocation, channel selection, paid media plan, Google Ads or Meta Ads audits, scaling paid media, killing underperforming campaigns, paid media hypotheses, ad spend strategy, attribution realities, and performance marketing strategy. Also use when a team asks how to scale paid media, whether to add a new channel, or how to reallocate spend across channels.
Generates PHPUnit tests in PHP. Covers assertions, data providers, mocking, and test doubles. Use when the user mentions "PHPUnit", "TestCase", "assertEquals", or "PHP test". Triggers on: "PHPUnit", "TestCase PHP", "assertEquals PHP", "PHP unit test".
Provides comprehensive guidance for Pinia state management including stores, state, getters, actions, plugins, and TypeScript support. Use when the user asks about Pinia, needs to manage application state, create stores, implement state persistence, or migrate from Vuex
Create and manage sprite animations with multiple frames, animation tags, frame durations, and linked cels. Use when the user wants to animate a sprite, add animation, create movement, make it move, mentions "animation", "animated", "frames", "keyframes", "frame rate", "FPS", "timing", "duration", "walk cycle", "run cycle", "idle animation", "attack animation", "jump", "movement", "motion", or describes actions like "walking", "running", "jumping", "attacking", "breathing", "bobbing", "bouncing". Trigger on animation tags, loops, playback, sequences, "add frames", "duplicate frame", "frame timing", "ping-pong", "loop", "sequence". Also for linked cels, static backgrounds, and frame optimization.
Apply advanced pixel art techniques including dithering, palette optimization, shading, antialiasing, and color theory. Use when the user mentions "dithering", "dither", "Bayer", "Floyd-Steinberg", "palette", "colors", "reduce colors", "optimize palette", "color limit", "shading", "shadows", "highlights", "lighting", "light source", "antialiasing", "smooth", "smoothing", "anti-alias", "AA", "color ramp", "gradient", "hue shifting", "saturation", "value", "contrast", or wants to "refine", "polish", "improve", "enhance", "make better", "add depth", "add dimension" to existing pixel art. Trigger on retro palette names (NES, Game Boy, C64, PICO-8), texture terms ("metal", "fabric", "stone", "wood"), and visual quality terms ("professional", "clean", "smooth", "vibrant").
Playwright v1.64 (E2E / component testing framework) reference. test, expect, page, locator, getByRole / getByText / getByLabel / getByTestId / getByRef, toBeVisible, click, fill, route, mock, fixtures, playwright.config.ts, auth persistence, Credentials (passkeys / WebAuthn), WebStorage, WebMCP, Playwright MCP / playwright-cli, trace viewer, screencast, test locks, codegen, UI mode
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`.
Full code review for Keboola Python components — covers both code quality (architecture, config/client patterns, typing, Pythonic best practices) and backward compatibility (configSchema changes, sync actions, output tables, state files, telemetry impact). Use for PRs, pre-merge checks, and component audits. Invoke whenever someone asks to review code, check a PR, audit before release, or verify that changes are safe for existing users.
Write high-converting direct response sales letters using the proven methodologies of Gary Halbert (The Boron Letters) and Dan Kennedy (The Ultimate Sales Letter)—master the art of persuasive long-form copy that turns readers into buyers. Use when: **Write a long-form sales letter** for a product or service; **Create direct mail pieces** that generate response; **Write landing page copy** in sales letter format; **Craft email sequences** with direct response principles; **Develop VSL scripts*...
Create and configure Syncfusion Angular Stepper component for multi-step workflows, wizards, forms, and onboarding flows. Use this skill when implementing step-by-step navigation, configuring step validation, handling step events, or customizing step appearance with icons, labels, and templates. This covers stepper-based wizard interfaces, progress tracking workflows, and multi-form configurations.
Turn a short request into a finished short film rendered from code, working like a studio team of twelve jobs (strategist, creative director, writer, voice director, art director, storyboard artist, cinematographer, composer, sound designer, editor, reviewer, social copywriter). For launch and product videos, explainers, music videos, brand and story films. It learns the brand from its site, pitches the best route first (code, real-looking pictures, moving shots from a video model) with prices, asks whether to run to a finished first take or work in stages, always asks before spending money, credits or heavy usage, has a fresh reviewer score the cut against a bar, and takes notes on frames in a local review room.
Trust Wallet API for crypto data — token search, prices, trending tokens, swap quotes, market data, security checks, address validation, asset info, and coin status across 100+ blockchains. Use whenever the user asks about crypto prices, token info, swap rates, market cap, trending coins, token risk, honeypot detection, address validation, or wants to call the Trust Wallet / tws.trustwallet.com API directly. Covers HMAC-SHA256 authentication, supported chains, and all REST endpoints
Fetch and extract content from web pages, converting HTML to clean markdown. Use when users want to read web articles, extract information from URLs, scrape web content, or when the built-in WebFetch tool fails due to network restrictions. Trigger when user provides URLs to read, asks to fetch web content, or needs to extract text from websites.
Write tests that pin real behavior instead of implementation details, config values, or lucky samples. Use when adding tests for new behavior, writing a regression test, fixing a brittle or flaky test, reviewing a test diff, or when a test breaks after a refactor or config change that didn't change behavior.
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.