Skills
96,981 packaged capabilities and playbooks for agents. Install any of them with one command.
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Build robust backtesting systems for trading strategies with proper handling of look-ahead bias, survivorship bias, and transaction costs. Use when developing trading algorithms, validating strategies, or building backtesting infrastructure.
Generates article cover images with 5 dimensions (type, palette, rendering, text, mood) combining 9 color palettes and 6 rendering styles. Supports cinematic (2.35:1), widescreen (16:9), and square (1:1) aspects. Use when user asks to "generate cover image", "create article cover", or "make cover".
Converts Markdown to styled HTML with WeChat-compatible themes. Supports code highlighting, math, PlantUML, footnotes, alerts, infographics, and optional bottom citations for external links. Use when user asks for "markdown to html", "convert md to html", "md转html", "微信外链转底部引用", or needs styled HTML output from markdown.
Bar exam preparation questions — objective or subjective, targeted at your weak subjects and exam type. Tracks wrong answers and revisits weak patterns. Use when the user says "bar exam practice", "objective questions", "subjective questions", or "test me".
Fit Bayesian regression models with PyMC using the Hogg approach — start simple, diagnose problems, upgrade the likelihood. Use when the user needs regression with proper uncertainty quantification, heteroscedastic errors, outlier robustness, or model comparison. Covers Normal, Student-t, and GLM likelihoods with ArviZ diagnostics and LOO-CV.
CLI for VCF/BCF: filter, merge, annotate, query, normalize, compute stats. Core post-variant-calling: quality filtering, multi-sample merging, rsID annotation, genotype extraction. Samtools companion in HTSlib. Use GATK for complex indel realignment during calling; use VCFtools for population genetics stats.
BettaFish (微舆) multi-agent public opinion analysis system — based on a three-engine parallel architecture with QueryAgent, MediaAgent, and InsightAgent, using ForumEngine to enable collaborative discussion among Agents, and generating dual-format reports: Word/PDF plus high-design-quality HTML. Trigger this skill when the user needs the following analyses: - Analyze the social media reputation and word-of-mouth of a brand/company/product - Track trending public opinion events (such as a car company being criticized or a celebrity controversy) - Mine the content and influence data of specific social media accounts - Monitor competitor public opinion dynamics and compare multiple brands - Analyze public sentiment and attitudes toward a topic - Generate public opinion monitoring reports or crisis warning analyses - Need formal reports in Word document/PDF format - Need high-design-quality interactive HTML visualization reports - Need in-depth public opinion analysis based on real data This skill uses the QueryAgent + MediaAgent + InsightAgent parallel architecture, enables discussion and collaboration among Agents via ForumEngine, runs 3 rounds of reflection loops to optimize analysis results, and finally outputs: 1. **Word/PDF documents** — generated with the docx/pdf subskill, suitable for formal reporting, printing, and archiving 2. **High-design-quality HTML reports** — using the frontend-design subskill, with a distinctive editorial magazine style and interactive visualizations **No databases or mock data are used**; all data is fetched in real time via WebSearch/WebFetch/Browser/Curl. Even for complex multi-step analysis needs, integration of multiple data sources, or generating professionally formatted public opinion reports, be sure to use this skill.
Use this skill when working with Brain Imaging Data Structure (BIDS) datasets: organizing neuroscience and biomedical data (MRI, EEG, MEG, iEEG, PET, microscopy, NIRS, motion capture, EMG, MR spectroscopy, behavioral), querying BIDS layouts, validating compliance, converting DICOM to BIDS, writing metadata sidecars, or creating BIDS derivatives.
Autonomous biomedical AI agent framework for executing complex research tasks across genomics, drug discovery, molecular biology, and clinical analysis. Use this skill when conducting multi-step biomedical research including CRISPR screening design, single-cell RNA-seq analysis, ADMET prediction, GWAS interpretation, rare disease diagnosis, or lab protocol optimization. Leverages LLM reasoning with code execution and integrated biomedical databases
Primary Python toolkit for molecular biology. Preferred for Python-based PubMed/NCBI queries (Bio.Entrez), sequence manipulation, file parsing (FASTA, GenBank, FASTQ, PDB), advanced BLAST workflows, structures, phylogenetics. For quick BLAST, use gget. For direct REST API, use pubmed-database.
Apply PESTEL framework to scan the macro-environment across Political, Economic, Social, Technological, Environmental, and Legal dimensions. Use this skill when the user needs to assess external macro factors affecting a business, industry, or market — especially before entering a new country, launching a product, or evaluating regulatory risk. Also use when the user mentions 'macro analysis', 'external environment', or 'what trends should we watch'.
Interview-driven blog post drafting for technical product audiences. Use when user wants to write a blog post, article, or essay and needs help developing their thesis, structure, and initial draft. Triggers on "write a blog post", "draft an article", "help me write about X", "blog drafter", or when user has a topic they want to turn into written content. Conducts structured interviews using AskUserQuestion to extract the user's unique insights before generating drafts.
Draft board or committee meeting minutes in your house format. Auto-detect upcoming board and committee meetings from your calendar, ask for the agenda and any decks or pre-reads, and generate a complete formatted draft learned from your seed minutes. Also handles written consents in lieu of a meeting. Triggers: "board minutes", "draft minutes", "upcoming board meeting", "committee minutes", "written consent", or a calendar-detected upcoming board or committee event.
This skill should be used when the user asks about Bootstrap helpers, Bootstrap clearfix, Bootstrap color and background helpers, Bootstrap colored links, Bootstrap focus ring, Bootstrap icon link, Bootstrap position helpers, Bootstrap ratio helpers, Bootstrap stacks, Bootstrap stretched link, Bootstrap text truncation, Bootstrap vertical rule, Bootstrap visually hidden, or needs help with Bootstrap helper classes.
When the user wants to create or optimize an email sequence, drip campaign, automated email flow, or lifecycle email program. Also use when the user mentions "email sequence," "drip campaign," "nurture sequence," "onboarding emails," "welcome sequence," "email automation," "lifecycle emails," "trigger-based emails," "email funnel," "email workflow," "what emails should I send," "welcome series," "email cadence," "soap opera sequence," "SOS emails," "story-driven emails," "serialized email," or "open loop emails." World Code integrated — sequences are serialized stories that walk people into your World using open loops and transformation arcs. For cold outreach emails, see boring-cold-email. For in-app onboarding, see boring-onboarding-cro.
Write essays and micro-essays using the user's World Code voice and worldview. Use this skill whenever the user asks to write an essay, micro-essay, short-form prose, or insight-dense writing about a topic. Also trigger when the user says "write about X", "essay on Y", "micro-essay about Z", "write something about", "explore this idea", or any content creation request that should feel like cross-domain, opinionated prose. If the user mentions essays, writing about concepts, or creating insight-driven content of any kind, use this skill.
Persistent local memory for AI agents. Silently capture and retrieve context that survives beyond a single conversation: business requirements, API specs, integration quirks, technical decisions, user preferences, and domain knowledge. Use this skill proactively whenever you encounter information worth preserving or when context from past sessions would help the current task. Also triggered manually by "braindump this" (to store) or "use your brain" (to retrieve).
Use when an idea, problem, or possible solution is not formed enough to begin architect. Explores the problem and alternative approaches, challenges assumptions during convergence, and can produce an optional architect-seed.md handoff for a later architect session. Do NOT use once the change is ready for architectural decisions — use architect directly.
Define, update, create, and review brand voice, messaging, visual identity, logos, corporate identity, custom icon language, approved assets, and consistency. Use when branded output needs a durable human-readable identity source of truth or an on-brand review.
Browserbase cloud-headless-browser SDK expertise for TypeScript/Node. Use when code imports `@browserbasehq/sdk`, `@browserbasehq/stagehand`, `playwright-core`, or `puppeteer-core` and connects to Browserbase; when code POSTs to `api.browserbase.com/v1/sessions`, `/v1/contexts`, `/v1/extensions`, or `/v1/projects`; when sending the `x-bb-api-key` header or using `BROWSERBASE_API_KEY`/`BROWSERBASE_PROJECT_ID`; when the user asks about Browserbase sessions, contexts, proxies, downloads, uploads, recordings, live debugger URL, captcha solving, advanced stealth, verified browsers, fingerprinting, BYOS S3 storage, regions (`us-west-2`/`us-east-1`/`eu-central-1`/`ap-southeast-1`), keepAlive, the `connectUrl` CDP WebSocket, `chromium.connectOverCDP`, `puppeteer.connect({browserWSEndpoint})`, the `browser.contexts()[0]` default-context pattern, Stagehand `act`/`extract`/`observe`/`agent` primitives, the Model Gateway, or deploying serverless via Browserbase Functions.
Validate plans, designs, and implementations before execution to prevent costly mistakes. Cover architecture review, security audit, scalability assessment, cost analysis, compliance check, and risk identification. Produce go/no-go decisions with specific remediation steps. Triggers on "review this plan", "validate architecture", "check for mistakes", "is this production ready", "audit this design", "what could go wrong", "pre-flight check", "build review", "quality gate", "risk assessment", "cost estimate", or "compliance check".
Fast short-read DNA aligner for WGS/WES/ChIP-seq. 2× faster BWA-MEM successor; outputs SAM/BAM with read group headers for GATK. Primary plus supplementary records for chimeric reads. Use STAR for RNA-seq splice-aware alignment; Bowtie2 is a comparable alternative.
Resizes, scales, and adjusts video resolution and dimensions using GPU-accelerated NVENC encoding via Volcengine LAS. Video resizing, video scaling, video upscaling, and video downscaling — change video resolution, enlarge or shrink video dimensions, and adjust video size for different platforms and screens. Video compression by reducing resolution and video transcoding and re-encoding with specific dimension constraints. Supports flexible min/max width and height ranges with aspect ratio preservation strategies (increase, decrease, or disable), including landscape to portrait conversion. Async submit-poll workflow with batch support. Use this skill when the user wants to resize or scale video resolution (upscale/downscale), change video dimensions for different platforms, compress videos by reducing resolution, transcode/re-encode videos with GPU NVENC, adjust aspect ratio including landscape-to-portrait conversion, adapt videos for mobile/web/social media, or batch process multiple videos.
Prepare for a sales call with account context, attendee research, and suggested agenda. Works standalone with user input and web research, supercharged when you connect your CRM, email, chat, or transcripts. Trigger with "prep me for my call with [company]", "I'm meeting with [company] prep me", "call prep [company]", or "get me ready for [meeting]".
Control camera behavior in Decentraland scenes. CameraMode detection, CameraModeArea (force first/third person in regions), VirtualCamera (cinematic scripted cameras), MainCamera (read position/rotation), and camera-triggered events. Use when the user wants camera control, cutscenes, cinematic views, forced camera modes, or camera tracking. Do NOT use for input restriction during cutscenes (see advanced-input for InputModifier).
Create beautiful visual artworks in .png and .pdf formats using a design philosophy. Use this skill when the user asks for posters, artworks, design pieces, or other static works. Create original visual designs; never copy existing artists' works to avoid copyright infringement.
Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.
Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.
Case radar. Given something new (a new tool/concept/ecosystem), scan the ecosystem for fun real-world cases, focusing on capturing "real artifacts" (screenshots/source code/demos) rather than GitHub homepages, and output a browsable HTML case collection. Triggers when the user says "看看大家用 X 做了什么", "扫一下 X 生态", "市面上 X 有什么新玩法", "给我看 X 的真物案例", or "/case-radar". Not suitable for: ① in-depth research with an already clear goal (use the available research tools to study directly) ② writing articles/producing PRDs (use writing-assistant / prd-test-writer) ③ pure knowledge seeking that doesn't need HTML (just ask directly).
Ultra-compressed communication mode. Cuts token usage by about 75% by removing filler words, articles, and pleasantries while keeping full technical accuracy. Use when the user says "caveman mode", "talk like caveman", "use caveman", "less tokens", "be brief", or invokes /caveman.
Draft infringement cease-and-desist letters (send mode) or triage letters received (receive mode). Use when asserting rights against an infringer and sending a calibrated letter per your enforcement posture, or when triaging a received letter into a structured options memo with a recommendation.
Automatically creates user-facing changelogs from git commits by analyzing commit history, categorizing changes, and transforming technical commits into clear, customer-friendly release notes. Turns hours of manual changelog writing into minutes of automated generation.
Use when you need to batch-verify whether skills conform to best-practice standards, automatically checking dimensions such as naming, frontmatter, structure, and dependencies, generating a detailed report, and outputting fix suggestions; supports single or batch checks. Trigger words: check skill standards, batch-verify skill quality, scan all skills, full skill quality validation.
Create a comprehensive checkpoint commit with detailed analysis of all changes. Use this skill when the user says "checkpoint", "commit everything", "save my progress", "create a commit", or wants to stage and commit all current changes with a well-crafted message. Also use when the user says "/checkpoint" or asks to snapshot current work. This skill stages all changes and creates a descriptive commit — it does not push.
Analyze a provided resource through a Circuit lens. Use when the user provides or points to an article, pasted conversation, X thread, workflow example, GitHub repo, local codebase, product page, paper, or other outside reference and asks what Circuit can learn from it, whether it suggests a possible Circuit flow, whether Circuit can support the workflow today, what product or block changes would be needed, or whether the analysis should be added to Circuit's ideas or flow backlog.
Delegate a sub-task to Gemini CLI via the Agent Client Protocol (ACP). Use this skill whenever you want to hand off work to Gemini — large-context summarization, Google Search grounding, tasks that exceed Claude's context window, or anything where Gemini's 1M-token window or real-time search gives an advantage. Also invoke when the user asks you to "ask Gemini", "check with Gemini", or "run this through Gemini". The script handles subprocess lifecycle and ACP session setup; you just provide the prompt and read stdout.
Designs and optimizes Clay-powered GTM workflows for prospecting, signal detection, outbound email sequences, enrichment pipelines, and account-based marketing. Use when the user mentions 'Clay,' 'GTM engineering,' 'prospecting,' 'signal detection,' 'enrichment,' 'Claygent,' 'outbound automation,' or wants to build Clay tables or integrate with sequencing tools like Lemlist, Smartlead, or Instantly.
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.