Skills
101,174 packaged capabilities and playbooks for agents. Install any of them with one command.
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Author CEL expressions used across ObjectStack — formula fields, field conditional rules (`visibleWhen`, `readonlyWhen`, `requiredWhen`), validation, sharing, and visibility predicates, flow conditions, and dynamic seed values. This is the companion skill that objectstack-data, -ui, -api, and -automation each tell you to load alongside them. Use when writing an `F`, `P`, or `cel` tagged-template literal, or when asking “how do I express X as a formula / predicate.” Do not use for SQL fragments (driver-native) or L2 hook bodies (those belong in objectstack-data).
Design a viable business model for a one-person company using Lean Canvas and a simplified Business Model Canvas. Use when Codex needs to explain the business-model concepts when needed, verify niche and value-proposition prerequisites, ask one question at a time, present multiple model choices, and write user-confirmed outputs into `opc-doc/`.
End-to-end writing support for undergraduate and master's theses. Supports outline review (science/engineering and humanities), structural imitation (general, experimental, introduction, and abstract; humanities also includes literature reviews, case analyses, recommendations, and humanities introductions and abstracts), reference retrieval and integration, polishing (including experimental and humanities chapters), shortening, expansion, AIGC detection avoidance, Chinese-English translation, and structured information extraction. Use when users mention thesis writing, outline review, imitating thesis chapters, references, thesis polishing, AIGC detection avoidance, thesis translation, humanities theses, literature reviews, or recommendations.
Defines measurable performance budgets for bundle size, API latency, database queries, and render times. Provides enforcement strategies and monitoring plans. Use for “performance budgets,” “performance monitoring,” “web vitals,” or “optimization targets.”
Use this skill when the user asks to “create a plugin,” “scaffold a plugin,” “understand plugin structure,” “organize plugin components,” “set up plugin.json,” “use ${CLAUDE_PLUGIN_ROOT},” “add commands/agents/skills/hooks,” “configure auto-discovery,” or needs guidance on plugin directory layout, manifest configuration, component organization, file naming conventions, or Claude Code plugin architecture best practices.
Generate and edit consultant-grade PowerPoint decks from markdown outlines using a template's real slide-master layouts (not text overlays). Use when the user wants to create slides/a deck/a presentation from an outline or brief, modify an existing .pptx, turn their own PowerPoint into a reusable template, or check a deck's quality. Triggers: "make a deck", "build a presentation", "slides for…", "use my company template", "fix slide N".
Use when planning or synthesizing user research: choosing the method, deciding how many participants, or turning coded notes into insights. Runs study_designer.py, saturation_planner.py and insight_synthesizer.py, which refuses single-source insights
Expert product strategist for vision, strategy, and market positioning. Use when defining product vision, assessing product-market fit, sizing market opportunities (TAM/SAM/SOM), competitive positioning, or choosing between build/buy/partner. Covers business model design, monetization strategy, platform decisions, and strategic roadmap planning.
Guide technical communication for software developers. Covers email structure, team messaging etiquette, meeting agendas, and adapting messages for technical vs non-technical audiences. Use when drafting professional messages, preparing meeting communications, or improving written communication.
Generate images with Alibaba Qwen-Image-2.0-Pro via inference.sh CLI. Professional text rendering, fine-grained realism, enhanced semantic adherence. Ideal for posters, banners, and text-heavy designs. Triggers: qwen image pro, qwen-image-pro, qwen 2 pro, alibaba image pro, dashscope pro, professional text rendering
Senior React Native and Expo engineer for building production-ready cross-platform mobile apps. Use when building React Native components, implementing navigation with Expo Router, optimizing list and scroll performance, working with animations via Reanimated, handling platform-specific code (iOS/Android), integrating native modules, or structuring Expo projects. Triggers on React Native, Expo, mobile app, iOS app, Android app, cross-platform, native module, FlatList, FlashList, LegendList, Reanimated, Expo Router, mobile performance, app store. Do NOT use for Flutter, web-only React, or backend Node.js tasks.
Extract actionable Linear tickets from ambiguous input — Slack conversations, call transcripts, screenshots, meeting notes, or any unstructured material. Proposes tickets in a scratchpad file for user review, then creates them in Linear on approval. Use when the user wants to turn conversations, transcripts, screenshots, or notes into Linear tickets. Also use when user says “create tickets from this”, “send to linear”, “make issues from this call/chat”, or provides raw material and asks for tickets.
Expert product marketing guidance for SaaS growth: trial acquisition, user activation to first value, and freemium-to-paid conversion. Use when writing landing pages, onboarding flows, email sequences, pricing pages, upgrade prompts, or any growth/conversion copy.
Audit and improve a site’s internal-linking topology and semantic HTML—map pillar/cluster structure, count and grade contextual in-body links and anchor text, surface orphan pages and nav-heavy templates, and propose specific source→target link insertions. Module M10. Feeds the Search SEO score
Refactors brittle snapshot tests into resilient, focused assertions. Provides strategies for reducing snapshot size, extracting meaningful assertions, and maintaining snapshots. Use for "snapshot testing", "snapshot refactoring", "brittle tests", or "assertion improvement"
Build a complete audio identity for your brand using a 7-step methodology—from brand assessment through deployment—creating memorable sonic assets that drive recognition and trust. Use when creating audio branding for a new company, refreshing outdated brand sounds, developing audio guidelines for consistent usage, planning sonic identity across touchpoints, or briefing agencies on audio branding projects.
Projetar e revisar logs, métricas, traces, correlação, SLOs, alertas e dashboards para explicar comportamento de sistemas. Use quando a tarefa envolve instrumentação, incidentes, telemetry ou operação; use também para definir o sinal que decide um rollout ou dispara um alerta; não confunda volume de logs com observabilidade, e para o diagnóstico de causa de latência específica use `$specsfy-specialist-performance-engineering`.
Converts Synapse workspaces to Fabric: Spark items, Lake Databases, Linked Services, and Dedicated SQL Pool schema/procedures for Lakehouse or Warehouse. During Pool-to-Lakehouse migration only, can migrate approved dependent procedure callers after notebook readiness. Excludes standalone pipelines and Warehouse administration. Triggers: Synapse workspace to Fabric, Dedicated SQL Pool to Lakehouse, Dedicated SQL Pool to Fabric Warehouse.
Implements and customizes the Syncfusion .NET MAUI Button (SfButton) control. Use when working with MAUI buttons, SfButton implementation, button customization, or visual states. Covers button icons, background images, RTL support, Liquid Glass effects, custom button views, button styling, events, and checkable buttons.
Computational vaccine candidate design: peptide/subunit vaccines via MHC-I/MHC-II epitope prediction (IEDB), population HLA coverage optimization, B-cell epitope identification, and cross-strain conservation analysis. Use for vaccine epitope prediction, HLA allele coverage, multi-epitope construct design, and immunogenicity assessment. Combines predicted MHC binding with experimentally validated IEDB epitopes for higher-confidence designs
Functional annotation of protein variants — ProtVar structural/functional context, ClinVar clinical classifications, gnomAD population frequencies, CADD deleteriousness, ClinGen gene-disease validity, plus FAVOR one-call comprehensive GRCh38 annotation. Use for variant annotation pipelines, missense effect prediction, and protein-level variant interpretation with functional context.
End-to-end AI video production through the Hyper MCP — text-to-video and image-to-video generation (Veo, Seedance), scene chaining, video analysis, transcription, subtitles, TikTok / karaoke captions, voiceover (TTS), audio mixing, clipping, stitching, and text overlays. Use when the user asks to generate a video, create UGC, scene-chain, add captions or subtitles, add narration, stitch clips, clip a podcast highlight, or do any AI video editing.
Declarative UI widgets from JSON for React/Next.js from ui.inference.sh. Render rich interactive UIs from structured agent responses. Capabilities: forms, buttons, cards, layouts, inputs, selects, checkboxes. Use for: agent-generated UIs, dynamic forms, data display, interactive cards. Triggers: widgets, declarative ui, json ui, widget renderer, agent widgets, dynamic ui, form widgets, card widgets, shadcn widgets, structured output ui
Multi-source research with citations using You.com. Use for questions that need several sources compared and synthesized, such as library or framework comparisons, tool and vendor evaluations, market research, or deep-dive reports. Routes between a cost-conscious agentic search loop and the one-shot `you-research` MCP tool.
Run deterministic accessibility audits and regression gates on web projects, especially large sites with many routes and shared templates. Combines axe-core and optional Lighthouse with template-aware sampling, stable finding fingerprints, accepted baselines, standards evidence mapping (WCAG 2.1 AA default, WCAG 2.2 AA, EN 301 549), manual check guidance, and structured reporting. Output is configurable: markdown report only, markdown plus machine-readable JSON, or markdown plus issue tracker integration. Use this skill whenever the user mentions “accessibility audit”, “a11y audit”, “WCAG audit”, “accessibility check”, “compliance scan”, “accessibility baseline”, “new accessibility regressions”, or asks to check a web project for accessibility issues. Also trigger when the user wants evidence for WCAG conformance review or mapping to a specific standard (WCAG 2.2, EN 301 549 / European Accessibility Act, CAN-ASC-6.2, ADA/AODA)
Use when generating, testing, submitting, reviewing, or publishing governed project semantic candidates from AE project asset packages. This skill owns progressive asset-scope consent, recommendation quality gates, evidence authority, topic-domain grouping, candidate JSON generation, CLI closed-loop validation, and frontend review acceptance. Do not use it for ordinary analysis questions that only consume already published semantics.
Expert-level aerospace systems, flight management, maintenance tracking, aviation safety, and aerospace software. Use when the user mentions aviation, flight, maintenance, safety, or air traffic control, or when the task involves Aerospace Systems, Aviation Technologies, Standards and Regulations, or Flight Operations.
Use for Agently request-side setup and contracts: model settings, Prompt/input/output design, effect tuning, missing or redundant context, structured output, LongContent, auto_continue, response reuse, streaming, TTS/STT audio, session memory, embeddings, and retrieval within one request family. Use agently-agentic-design for cross-node data flow and model/Host ownership.
Create AI-powered podcasts with text-to-speech, music, and audio editing. Tools: Kokoro TTS, DIA TTS, Chatterbox, AI music generation, media merger. Capabilities: multi-voice conversations, background music, intro/outro, full episodes. Use for: podcast production, audiobooks, voice content, audio newsletters. Triggers: podcast, ai podcast, text to speech podcast, audio content, voice over, ai audiobook, multi voice, conversation ai, notebooklm alternative, audio generation, podcast automation, ai narrator, voice content, audio newsletter, podcast maker
Registry of visual aesthetic and style skills for Claude Code, Cursor, Codex, and other agents. Each style is its own skill shipping SKILL.md + DESIGN.md (tokens, components, accessibility, tone, quality gates) for an aesthetic such as glassmorphism, brutalism, claymorphism, neumorphism, editorial, bento, retro, or riso. The catalogue installs a few popular styles; any other style can be added by name.
Create professional diagrams with configurable dark/light theme via CSS custom properties. Use this skill whenever the user asks for any kind of technical or conceptual diagram, visualization of a system, process flow, data flow, component relationship, network topology, decision tree, org chart, state machine, or any visual representation of structure/logic/process. Also trigger when the user says "画个图" "画一个架构图" "diagram" "flowchart" "sequence diagram" "draw me a ..." or uploads content and asks to visualize it. Outputs a dark-theme SVG, a light-theme SVG, and a @2x PNG of each
Use when you want guided mining of git history, structured change-story clustering, or comprehensive rationale recovery before documenting. Class boots only suggest capture — for in-session change rationale they suggest /change-specify; this skill mines history and writes the lightweight ChDR draft.
Generate a pedagogically grounded study guide for learning an unfamiliar codebase. Use when the user wants to onboard to a codebase, understand a project’s architecture, create learning materials for a team, or asks things like “help me learn this codebase”, “create an onboarding guide”, “I’m new to this project”, “how does this system work”, “study guide for this repo”, or “explain this codebase to me”. Produces a structured document that builds understanding from purpose to systems to patterns, using evidence-based learning techniques (elaborative interrogation, concept mapping, threshold concepts, worked examples, progressive disclosure).
Classifica comentários de Instagram e escreve a resposta pública e a DM de cada um. Use quando a pessoa colar ou exportar comentários de um post ou reel, pedir "responde esses comentários", "quem pediu o material", "monta as DMs", ou usar uma palavra-chave de isca (como "comenta GUIA"). Identifica a intenção (pediu o material, dúvida, elogio, objeção, hater, spam) e entrega tudo em tabela e CSV prontos para copiar. A skill escreve as respostas; ela não envia nada sozinha.
Research-backed customer persona creation with market data and avatar generation. Covers demographics, psychographics, jobs-to-be-done, journey mapping, and anti-personas. Use for: marketing strategy, product development, UX research, sales enablement, content strategy. Triggers: customer persona, buyer persona, user persona, target audience, ideal customer, customer profile, audience research, user research, icp, ideal customer profile, target market, customer avatar, audience persona
Profile and explore datasets to understand their shape, quality, and patterns before analysis. Use when encountering a new dataset, assessing data quality, discovering column distributions, identifying nulls and outliers, or deciding which dimensions to analyze.
Build scalable, maintainable design systems that unify product experiences. Use when creating component libraries, design tokens, or establishing design standards. Covers atomic design, Storybook, theming, and design system governance.
Structured pressure-testing of an argument (devil's advocate): break it into explicit claims and implicit assumptions (A1/A2 numbering), search user-provided evidence for sourced counterarguments point by point, assign High/Medium/Low risk levels, add a base-rate external perspective, and finish with a list of “monitorable falsification signals”; output structured findings plus a reader-friendly narrative. If no counterevidence is found, state “not found” honestly; never fabricate. Recreates the publicly described Devil's Advocate architecture from LinqAlpha (a hedge fund AI product), combined with CIA structured analytic techniques and RAND hypothesis planning. Use this skill whenever the user asks to pressure-test, play devil's advocate, find blind spots, unpack assumptions, challenge an argument, develop a bear case, red-team a plan, review something before an investment committee, or pressure-test a thesis—even if they don't say “devil's advocate.”
Converts documents into clean, chunked datasets suitable for embeddings and vector search. Produces chunked JSONL files with metadata, deduplication logic, and quality checks. Use when preparing “training data,” “vector datasets,” “document processing,” or “embedding data.”
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.