mcpField

Skills

99,719 packaged capabilities and playbooks for agents. Install any of them with one command.

All

A
automatic-subtitle-generator

Tell me what you need and I'll handle the heavy lifting — whether that's captioning a tutorial, adding multilingual subtitles to a product demo, or burning readable text onto a social clip. This automatic-subtitle-generator skill detects speech, syncs captions to timing, and outputs subtitle-ready video files. Supports mp4, mov, avi, webm, and mkv formats. Perfect for educators, content creators, marketers, and accessibility advocates who need accurate, well-timed subtitles without manual transcription.

Creative & media55
A
awesome-grammar-check
awesome-grammar-check
khasky / awesome-agent-skills

Proofreads prose and reports grammar, logic and flow issues as suggestions without rewriting the text. Use when asked to proofread or copy-edit while keeping the author's wording.

Documents55
A
awesome-web-security
awesome-web-security
qazbnm456 / awesome-web-security

Looks up curated web security learning resources (XSS, SQLi, CSRF, SSRF, OAuth/JWT, deserialization, SAML, recon, evasion, defensive tooling, CTF). Filters by topic, difficulty, language, and resource type. Returns top references with archive fallbacks. Defensive and educational use only.

Security55
A
aws-service-chaos-research
aws-service-chaos-research
panlm / skills

Use when the user asks about chaos engineering, fault injection, resilience testing, or HA verification for a SPECIFIC AWS service (e.g., RDS, EKS, MSK, ElastiCache, DynamoDB, S3, Lambda, OpenSearch, etc.). Triggers on "chaos testing on [service]", "fault injection for [service]", "how to test HA of [service]", "FIS scenarios/actions for [service]", "[service] failover testing", "[service] resilience testing", "[service] 混沌测试", "[service] 故障注入", "[service] 高可用验证", "对 [service] 做混沌实验", "test my [service]", "verify my [service] is resilient". Use this skill even when the user phrases it casually like "test my RDS" or "how resilient is my MSK cluster".

Testing & quality55
A
aztfexport
aztfexport
julianobarbosa / claude-code-skills

Use when exporting existing Azure resources to Terraform using aztfexport. Triggers on aztfexport, Azure import to Terraform, export Azure resource, bring Azure under Terraform management, reverse-engineer Azure infrastructure, bootstrap IaC from live Azure resources. Covers resource, resource-group, and query modes.

Cloud & DevOps55
A
azure-containerregistry-py
azure-containerregistry-py
sickn33 / agentic-awesome-skills

Azure Container Registry SDK for Python. Use for managing container images, artifacts, and repositories.

Cloud & DevOps55
A
azure-mgmt-applicationinsights-dotnet
azure-mgmt-applicationinsights-dotnet
sickn33 / agentic-awesome-skills

Azure Application Insights SDK for .NET. Application performance monitoring and observability resource management.

Cloud & DevOps55
A
azure-monitor-query-java
azure-monitor-query-java
sickn33 / agentic-awesome-skills

Azure Monitor Query SDK for Java. Execute Kusto queries against Log Analytics workspaces and query metrics from Azure resources

Cloud & DevOps55
B
background-removal
background-removal
magentosh / superpowers

Remove backgrounds from images with BiRefNet via inference.sh CLI. Model: BiRefNet (high accuracy background removal). Use for: product photos, portraits, e-commerce, transparent PNGs, photo editing. Triggers: remove background, background removal, remove bg, transparent background, cut out image, background remover, rembg, product photo editing, cutout, transparent png, bg removal, photo cutout

Creative & media55
B
background-remove
background-remove
michaelboeding / skills

Remove backgrounds from images using AI. Triggers include: "remove background", "transparent background", "cut out", "isolate subject", "remove bg", "make transparent", "extract subject", "background removal". Creates PNG or WebP images with transparent backgrounds.

Creative & media55
B
baidu-drive
baidu-drive
baidunetdiskaibot / bdpan-storage

Baidu Drive file management and document content capabilities — upload, download, save a copy, share, search files, search document passages, read full file contents, move, copy, rename, and create folders; check drive capacity, used space, and remaining space. Also supports Agent memory backup and restore (kimiclaw/maxclaw/qclaw/openclaw). Trigger when the user mentions “百度网盘/bdpan/网盘/云盘/baidu drive/Baidu Drive” and asks about file operations or drive capacity, remaining space, or usage; or mentions memory-related operations such as “备份记忆” (back up memory), “恢复记忆” (restore memory), or “查看记忆备份” (view memory backup). Do not trigger for non-file-storage operations, use of other cloud drives, local memory organization or cleanup, or PPT generation (handled separately by the baidu-wenku-aippt skill).

Productivity55
B
baidu-milan-winter-olympics-2026
baidu-milan-winter-olympics-2026
wuchubuzai2018 / expert-skills-hub

A skill for retrieving 2026 Milan Winter Olympics data, including medal standings, live news reports, and competition schedules. Scrapes real-time medal rankings, latest news, and match schedules from Baidu Sports. Use this skill when users need to query Winter Olympics medal standings, check medal counts by country, get live news, or view competition schedules.

Other55
B
baoyu-cover-image

Generates article cover images with 5 dimensions (type, palette, rendering, text, mood) combining 10 color palettes and 7 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".

Creative & media55
B
beadboard-driver
beadboard-driver
jordanhindo / beadboard

Use when an agent is executing work in any project repo and needs to coordinate with a human or other agents via BeadBoard. BeadBoard is the human-facing dashboard running separately; this skill is the agent-side operating contract for state, mail, assignment, and evidence flow.

Agent workflows55
B
beauty-school-video

There are two kinds of people who search for a cosmetology school. The first already knows they want to do hair or skincare — they have been doing it informally for years, everyone has told them they are good at it, and they are now ready to turn it into a career. What they need to see is whether your graduates are actually working in the industry at the level they want to reach. The second is not sure yet — they are considering cosmetology as a career alternative, and they are trying to figure out if this feels like something they could do every day for the next twenty years. What they need to see is what a day in your school actually looks and feels like. Beauty School Video creates the enrollment content that reaches both. Beauty School Video makes marketing and enrollment content for cosmetology schools, esthetics and skincare programs, nail technology schools, barbering programs, makeup artistry courses, hair styling academies, microblading and permanent cosmetics programs, lash and brow technician training, massage therapy schools, and continuing education providers for licensed beauty professionals. The content addresses the full range of prospective students: the career-changer in their twenties who wants out of an office job, the recent high school graduate who knows exactly what they want to do, the licensed professional who wants to add a specialty, and the entrepreneur who is building toward owning their own salon. Day-in-the-life and school culture videos that show what a typical Tuesday in the school actually looks like — the student working on a client, the instructor giving feedback over a haircut, the energy in the practical lab versus the classroom — because prospective students are buying an experience, not just a curriculum. Graduate outcome and career placement videos that show where your graduates are working, what specialties they have built, and how long it took from graduation to licensed employment — the specific proof that this school produces working professionals, not just graduates. Program-specific showcase videos for cosmetology, esthetics, nail technology, barbering, and every other credential you offer — matched content that shows up when a student is already searching for their specific program. Instructor and mentor introduction videos that put your faculty on camera to share their industry experience, their teaching approach, and the specific skills they have built over years of professional work — because a student choosing a beauty school is partly choosing the person who will teach them. Financial aid and enrollment process explainer videos that address the practical questions that stop prospective students from applying — how financial aid works, what the timeline looks like, what happens in the first week — because uncertainty about the process kills more enrollments than uncertainty about the career. Content for school websites, social media, targeted digital advertising to career-change audiences, high school counselor outreach, and the beauty community social networks where program recommendations spread among working professionals and students simultaneously. Beauty school video, cosmetology school promo, esthetics program video, nail tech school video, barbering school video, makeup artistry course video, cosmetology school enrollment video, beauty school marketing, hair school promo, skincare school video, beauty career video, cosmetology program tour, licensed cosmetologist training video, beauty school culture video.

Marketing & growth55
B
bin-data-parser

No description yet

Data & databases55
B
biome
biome
dralgorhythm / claude-agentic-framework

Biome 2.x linting and formatting patterns. Use when configuring code quality tools, setting up linting rules, formatting code, or integrating with CI/CD. Covers migration from ESLint/Prettier.

Testing & quality55
B
bkit-templates
bkit-templates
ww-w-ai / bkit-claude-code

PDCA + Sprint document templates — Plan, Design, Analysis, Report for individual features plus templates/sprint/{master-plan, prd, plan, design, iterate, qa, report}.template.md for sprint-level documents (v2.1.13). Triggers: template, plan document, design template

Documents55
B
blueprint-adr-validate
blueprint-adr-validate
laurigates / claude-plugins

Validate ADR relationships, domain consistency, and duplicate ADR numbers. Use when auditing ADRs before release, finding broken supersedes/extends links, cycles, or number collisions.

Testing & quality55
B
blueprint-curate-docs
blueprint-curate-docs
laurigates / claude-plugins

Curate library gotchas and project patterns into .claude/rules/ entries for AI context. Use when documenting library knowledge for PRP reuse.

Agent workflows55
B
blueprint-init
blueprint-init
laurigates / claude-plugins

Initialize Blueprint Development structure. Use when bootstrapping docs/blueprint/ with manifest, PRD/ADR/PRP directories, and feature tracking for the first time.

Development55
B
blueprint-prp-execute
blueprint-prp-execute
laurigates / claude-plugins

Execute a PRP with validation loop, TDD, and quality gates. Use when asked to execute a PRP, run a planned feature from docs/prps/, or delegate a PRP to subagents.

Development55
B
blueprint-sync
blueprint-sync
laurigates / claude-plugins

Check for stale generated content and offer regeneration or promotion. Use when syncing blueprint after PRD changes, or reconciling .claude/rules/ drift.

Agent workflows55
B
bookingmood
bookingmood
membranedev / application-skills

Bookingmood integration. Manage data, records, and automate workflows. Use when the user wants to interact with Bookingmood data.

Other55
B
bootstrap-customize
bootstrap-customize
sjnims / bootstrap-expert

This skill should be used when the user asks "how do I customize Bootstrap", "how to create a custom Bootstrap theme", "what Sass variables can I override", "how to implement dark mode in Bootstrap", "how to change Bootstrap colors", "how to override Bootstrap defaults", "how to add custom colors to Bootstrap", "how to enable Bootstrap shadows", "how to compile Bootstrap Sass", "how to use Bootstrap CSS variables", or needs help with Bootstrap theming, Sass variable overrides, CSS custom properties, or color mode implementation.

Design & UI55
B
bound
bound
danny-de-bree / bound

Integrate and operate BOUND, the deterministic bounded-utility control policy for agent workflows. Use when an agent must install bound-policy, define StepContracts, collect real ExecutionEvidence, evaluate meaningful execution boundaries, react to ACCEPT/RETRY/REPLAN/ROLLBACK, audit an existing BOUND integration, or produce a reproducible numeric integration report.

Agent workflows55
B
brainstorm
brainstorm
rsmdt / the-startup

Required first step before any creative work — creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements, and design before implementation

Development55
B
brand-guidelines
brand-guidelines
okou-ai / okou-skills

Define or enforce brand voice, messaging, terminology, tone, and style standards.

Marketing & growth55
B
brandkit-build
brandkit-build
arnie936 / ai-brand-kit

Condense a detailed brand description into a usable Brand Kit (brand kit, design system, design tokens, style guide). Generates a short, binding BRAND.md, executable CSS tokens, wordmark SVGs, reference artboards, and a CLAUDE.md that makes the rules take effect automatically. Use this skill as soon as a brand interview exists, when someone wants to turn a long style guide into something workable, or asks why their design system gets ignored in everyday use.

Design & UI55
B
brandkit-publish
brandkit-publish
arnie936 / ai-brand-kit

Builds websites, PDFs and AI images from an existing Brand Kit and labels generated images in line with the EU AI Act (brand kit, landing page, PDF, AI images, AI labeling, EU AI Act, higgsfield, gpt image). Integrates the unslop, web-design-guidelines and seo-audit skills and burns in the AI marking via the bundled script. Use this skill as soon as something is to be built with an existing Brand Kit, or someone asks how to label AI images in a legally compliant way.

Design & UI55
B
bringg
bringg
membranedev / application-skills

Bringg integration. Manage data, records, and automate workflows. Use when the user wants to interact with Bringg data.

Other55
B
build-product-integrations
build-product-integrations
membranehq / agent-skills

Build apps that integrate with external services via Membrane. Use when the user wants to add integrations to their product — let their customers connect to Slack, HubSpot, Salesforce, GitHub, Google Sheets, Jira, or any other app, execute actions, sync data, or handle webhooks. Covers backend token generation, frontend connection UI, running actions, data collections, and AI agent tooling.

Development55
B
build-tools-expert
build-tools-expert
oimiragieo / agent-studio

Build tools expert including Vite, Webpack, and bundler configuration

Development55
B
building-datadog-dashboards-and-notebooks

No description yet

Cloud & DevOps55
B
building-envelope
building-envelope
abhinavbwj / skills-architects

Building envelope design: wall systems (masonry, timber, steel, CLT, curtain wall, rainscreen, precast, SIPs, ICF), glazing systems (single to triple, low-e coatings, gas fills, framing types), roofing (flat, pitched, green, membrane), thermal performance (U-value, R-value, SHGC, air permeability), moisture management (vapor barriers, condensation risk, Glaser method), air barriers, cladding, and thermal bridge prevention.

Other55
B
building-sustainability
building-sustainability
abhinavbwj / skills-architects

Building sustainability frameworks and certification systems: LEED BD+C v4.1, BREEAM New Construction, Passive House (PHI/PHIUS), WELL Building Standard v2, DGNB, Living Building Challenge, Net Zero Carbon strategies, whole-life carbon assessment, embodied carbon reduction, operational energy targets, circular economy in architecture, and design for disassembly.

Other55
B
bun-add
bun-add
laurigates / claude-plugins

Bun add: install a package, add dev dependency, pin exact version, or target a workspace. Use when the user wants to add/install a specific package with bun.

Development55
B
business-analyst
business-analyst
rade-nugroho / agentic-enteprises-skill

Run a structured business analysis workflow: requirements elicitation with stakeholder interviews and MoSCoW prioritization, as-is/to-be process mapping with BPMN notation, data-driven analysis (CBA, SWOT, root cause), and production-ready documentation (BRD, FRD, user stories with INVEST acceptance criteria). Triggers on "gather requirements", "write user stories", "map business process", "BRD", "FRD", "gap analysis", "cost-benefit analysis", "facilitate workshop", "business requirements", "process mapping", "as-is to-be", "stakeholder interview", or "business analyst". For management consulting (issue trees, steerCo business cases, operating model), use business-consultant—not business-analyst. For business model canvas, market sizing, and unit economics research, use business-model-researcher. Human data / labeling platform PRDs: product-management-human-data-platform. Monetization PRDs and packaging: product-management-monetization.

Productivity55
C
caam
caam
dicklesworthstone / agent_flywheel_clawdbot_skills_and_integrations

Coding Agent Account Manager - Sub-100ms account switching for AI coding CLIs with fixed-cost subscriptions. Vault profiles, isolated profiles for parallel sessions, smart rotation with health scoring, cooldown tracking, automatic failover, TUI dashboard. Go CLI.

Agent workflows55
C
calculator
calculator
code-and-sorts / awesome-copilot-agents

Performs arbitrary-precision arithmetic calculations including addition, subtraction, multiplication, division, and exponents. Use when the user asks to calculate, compute, or evaluate math expressions, or when precise decimal arithmetic is needed to avoid floating-point errors.

Other55
C
campayn
campayn
membranedev / application-skills

Campayn integration. Manage data, records, and automate workflows. Use when the user wants to interact with Campayn data.

Marketing & growth55
C
canny
canny
membranedev / application-skills

Canny integration. Manage data, records, and automate workflows. Use when the user wants to interact with Canny data.

Productivity55
C
capigo-api
capigo-api
vtech-com / capigo-api-sdk

Drive the Capigo platform through the installed `capigo` CLI — the entry point for any Capigo work an agent does for a tenant. Use this whenever a request maps to Capigo data or capabilities — tasks, boards, members, products, variants, brands, categories, product types, product properties and property definitions, VAT policies, units, warehouses, stock locations, inbound receipts, outbound shipments, stock transfers, availability, tenants, authentication, configuration — even when the user never names the CLI or Capigo itself, and in whatever language they ask: "create a task and assign it to someone", "what's on the board this week", "read or post comments on that task", "list products", "look up this SKU or barcode", "set this product's origin or voltage", "tag this product Hè", "products tagged Sale", "how many brands do we have", "tag this task urgent", "tasks labelled X", "plan an inbound receipt for this PO", "which warehouse can cover this order". Also the reference for how the CLI itself works: detecting the install, logging in, picking a tenant, exit codes, JSON output, and self-diagnosing a misbehaving command. If a request touches Capigo and you are unsure how to talk to it, reach for this skill first instead of guessing raw API calls.

Other55
C
capture-skill
capture-skill
sanjeed5 / capture-skill

Capture learnings, patterns, or workflows from the current conversation into a new or existing skill. Use when the user wants to save what was learned, discovered, or built during a conversation as a reusable skill for future sessions. Triggers include "capture this as a skill", "save this for next time", "turn this into a skill", or when a useful workflow, pattern, or piece of domain knowledge emerged during the conversation.

Agent workflows55
C
case-study-writing
case-study-writing
magentosh / superpowers

B2B case study writing with STAR framework, data visualization, and research. Covers structure, customer quotes, metrics presentation, and distribution formats. Use for: customer success stories, portfolio pieces, sales enablement, marketing content. Triggers: case study, customer story, success story, b2b case study, client testimonial, customer case study, portfolio case study, use case, customer win, results story

Marketing & growth55
C
ceo-as-risk-officer
ceo-as-risk-officer
kangarooking / buffett-letters-skill

When the user is analysing enterprise risk management, the boundaries of the CEO's responsibilities, or assessing whether an organisation truly takes risk control seriously. Language signals: "who should manage risk management" / "why should the CEO personally manage risk" / "isn't the risk control department enough" / "what is the CEO's greatest responsibility" Not applicable to: pure investment analysis that does not involve organisational risk management.

Other55
C
cf-edit
cf-edit
nikolay-shirokov / cc-1c-skills

Targeted editing of the 1С configuration. Use when you need to change configuration properties, add or remove an object from the composition, configure default roles, change the panel layout, or set the start page.

Development55
C
cfd-reviewer
cfd-reviewer
dangeles / claude

Use when invoked by cfd-bioreactor orchestrator to provide adversarial engineering review of CFD simulation plans and generated code. Challenges mesh quality, boundary conditions, solver parameters, stabilization choices, and physical plausibility.

Testing & quality55
C
cfe-diff
cfe-diff
nikolay-shirokov / cc-1c-skills

Analyze a 1С configuration extension (CFE) — composition, borrowed objects, interceptors, transfer check. Use when you need to understand what an extension contains or check whether insertions were transferred into the configuration

Development55
C
channeladvisor
channeladvisor
membranedev / application-skills

ChannelAdvisor integration. Manage data, records, and automate workflows. Use when the user wants to interact with ChannelAdvisor data.

Marketing & growth55
C
chatwoot
chatwoot
membranedev / application-skills

Chatwoot integration. Manage data, records, and automate workflows. Use when the user wants to interact with Chatwoot data.

Other55
C
check-ci
check-ci
niekcandaele / skills

Monitor CI/CD pipeline status after pushes and investigate failures.

Cloud & DevOps55
C
check-wallet
check-wallet
openant-ai / openant-skills

Query wallet addresses and on-chain balances on OpenAnt. Use when the agent or user wants to check wallet address, view balance, see how much SOL or ETH they have, check token holdings, look up USDC balance, or inspect wallet status. Also use when a wallet operation fails with "Insufficient balance". Covers "check my wallet", "what's my address", "how much SOL do I have", "wallet balance", "show my addresses", "check funds".

Other55
C
chinese-write-checker
chinese-write-checker
taxueseek / plainspoken-writing

A Chinese content quality review tool and main entry point (gateway) for the writing suite. Comprehensively reviews a Chinese draft from four perspectives—editor, reader, author, and platform—across 16 criteria, then outputs a score, issue list, and routing recommendations. Does not edit; it only reviews and routes. Triggers: “review how this reads,” “does this have any issues,” “check this article,” “is this draft acceptable,” “review this for me,” “article quality review,” “Chinese writing diagnosis,” “can this be published,” “what needs changing in this draft,” “how should I revise it.” EN: “review my Chinese article,” “check this article quality,” “Chinese writing diagnosis,” “proofread this piece,” “is this article good enough”. Not for: direct rewriting (→ plainspoken-writing / editor-revisor); title, layout, or punctuation edits only (→ packaging-workshop); finding one’s voice (→ voice-dissolver); verifying the truth of facts, data, or quotations (→ L0 fact-review).

Creative & media55
C
chipax
chipax
membranedev / application-skills

Chipax integration. Manage data, records, and automate workflows. Use when the user wants to interact with Chipax data.

Other55
C
chroma
chroma
ovachiever / droid-tings

Open-source embedding database for AI applications. Store embeddings and metadata, perform vector and full-text search, filter by metadata. Simple 4-function API. Scales from notebooks to production clusters. Use for semantic search, RAG applications, or document retrieval. Best for local development and open-source projects.

Data & databases55
C
chrome-cdp-ex
chrome-cdp-ex
endeavoryen / chrome-cdp-ex

Your EYES into the user's live Chrome browser and Electron apps. This skill lets you SEE and INTERACT with the user's actual browser or Electron app — their open tabs, logged-in sessions, and live page state. You MUST use this whenever the user's request involves browser content or Electron app inspection in ANY way. TRIGGER THIS SKILL when the user: - References pages they have open: 'I have X open', 'my tabs', 'open tabs' - Asks to look at, compare, or analyze anything in their browser: 'compare these pages', 'which looks better', 'check this page' - Mentions UI/visual analysis of live pages: 'dashboard', 'UI', 'layout', 'design quality' - Asks for screenshots or page inspection: screenshot, inspect, debug, check the page - Refers to 'the page', 'the browser', 'my tab' in any context - Mentions console errors, page state, or anything requiring browser access - Mentions Electron apps or CDP connections: 'Electron', 'electron app', 'CDP', 'CDP_PORT', 'DevTools Protocol', 'desktop app', 'remote-debugging-port' CRITICAL: NEVER say you cannot see the user's browser or ask users to paste screenshots. You CAN see their browser through this skill. Use `list` to discover open tabs, then `perceive` or `shot` to see page content. Do NOT use Playwright — it launches an isolated browser without the user's login state, cookies, or open tabs.

Agent workflows55
C
chugui-dingzhi-bikeng-zhinan
chugui-dingzhi-bikeng-zhinan
zx029w / zhuangxiu-skills

Skill dedicated to the custom cabinet pitfall-avoidance guide. Covers the full process of countertop materials, cabinet doors and panels, hardware and accessories, wardrobes, shoe cabinets and sideboards, cabinet layout and dimensions, and whole-house customization pitfalls, integrating in reverse order the highlights of the Xi'an Renovation Classroom member-edition knowledge base to help users customize cabinets with less hassle and fewer pitfalls.

Other55
C
cigar-butt-vs-great-business
cigar-butt-vs-great-business
kangarooking / buffett-letters-skill

The user is torn between "buying a poor business cheaply" and "buying a good business at a fair price" when choosing an investment target or business model. Language signals: "can I pick up this bargain" / "is a low valuation worth buying" / "is an expensive good company worth buying" / "what's wrong with cheap stuff" Not applicable to: situations where an explicit investment methodology already exists and there is no need to choose between the two styles.

Other55
C
cinema-worldbuilder
cinema-worldbuilder
gregory-esman / ai-film-pipeline

Universal cinema worldbuilding director for Seedance video prompts with locked compositional rigor. Reads uploaded reference images for wardrobe, hair, makeup, identity, and environment, then composes production-ready Seedance prompts using a five-mode cinematography grammar (M1 Narrative, M2 Studio, M3 Action, M4 Performance, M5 Atmospheric) plus explicit Frame Map, Subject Lock, Movement, and Last Frame controls. Anchors subjects to screen positions, depth layers, contact points, and gaze so characters never drift, swap, or destabilize. Diegetic audio only — never music or lyrics. Use whenever the user wants a Seedance video prompt, mentions Seedance, asks for a cinematic scene breakdown, uploads references for a scene, describes a shot for video generation, or asks for music videos, action sequences, performance scenes, narrative shorts, fashion films, or atmospheric environment plates — even without saying 'cinematic' or naming a mode.

Creative & media55
77761–77820 of 99,719

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.