Skills
100,344 packaged capabilities and playbooks for agents. Install any of them with one command.
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Structured idea exploration from vague to direction, or pressure-test of an existing idea or plan. Two paths: greenfield maps a problem space from scratch; relentless stress-tests existing thinking to expose weakness, validate, refine, or surface a pivot. Diverge generates alternatives, converge evaluates trade-offs, capture produces the artifact. Use when brainstorming, exploring options, comparing approaches, rethinking a direction, considering a pivot, asking for a second opinion, finding holes in a plan, or grilling assumptions before building. Not for documenting a finalized direction.
General-purpose Git branch management skill. Used to help wangxin/wx create a new feature branch in the current repository, sync develop, commit and push, run pre-MR checks, and clean up branches after merging. By default branches feature/wx-YYYYMMDD-<task> off develop and proactively performs low-risk Git operations; history rewrites, remote deletions, and actions involving production branches require explicit confirmation.
Create polished 60 fps 4:3 4K browser screen-recording style videos from Codex in-app browser captures, with browser-only crop, natural macOS cursor styling, deliberate click choreography, zoom-follow framing, ffprobe/thumbnail verification, and optional native recording compatibility checks. Use when the user asks to record or re-record browser actions, show cursor clicks and zooms, make Dribbble/UI inspiration or product demo recordings, or asks whether Codex, Playwright, or an MCP can produce a natural browser demo video.
Produce a structured budget variance analysis from actual vs budget figures. Use when asked to analyse budget variances, explain underspend or overspend, write a variance commentary, or investigate why actuals differ from plan. Produces a categorised variance table with root cause analysis and management commentary.
Build a Loop for PostHog Desktop: a workflow that creates an AI task each time its trigger fires, optionally followed by a Slack or email notification with the task's result. Use when asked to create, set up, or change a loop, a recurring agent, a scheduled task, or an automation that runs an AI task when a GitHub, Slack, or PostHog event happens. Covers the exact graph, trigger configs, schedule presets, the notify step, structured output, and the test-run steps.
Bun runtime, package manager, bundler, and test runner. Use when running scripts with bun, managing packages, serving HTTP with Bun.serve, querying databases with Bun.sql/bun:sqlite/Bun.redis, shell scripting with $, using S3/file I/O, writing tests with bun:test, bundling or compiling to executable, or using any Bun-specific API (spawn, glob, semver, FFI, workers, plugins, HTMLRewriter).
Build, fill, stress-test, and iterate on a Business Model Canvas for a solopreneur. Use when designing or redesigning how a business creates, delivers, and captures value — covering all nine BMC blocks plus solopreneur-specific adaptations like the "Time & Energy" block and unit economics validation. Trigger on "business model canvas", "design my business model", "how will I make money", "business model", "BMC", "value proposition canvas", "how does my business work", "monetize my idea".
byted-emr-skills provides skills for managing Volcengine EMR (Volcengine E-MapReduce, "EMR" for short, is an enterprise-grade big data analytics system of the open source Hadoop ecosystem and fully compatible with open source), including managing EMR on ECS clusters, EMR on VKE clusters, EMR serverless queues, compute groups, job templates/instances, logs and monitoring, and offers EMR Agent intelligent diagnosis and knowledge Q&A capabilities. When users mention needs such as "EMR on ECS cluster", "EMR on VKE cluster", "Serverless queue", "Serverless job", "SparkSQL/PrestoSQL/Ray/PySpark/SparkJar job", "job logs", "job monitoring" or "job diagnosis", this skill should be preferred.
Builds, schedules, and operates analytics DAGs in CARTO Workflows — the no-code/low-code orchestration layer over the data warehouse. Triggers when the user wants to author a workflow, run/edit one, schedule a DAG, or copy a workflow across profiles or orgs.
Generate a working geospatial app powered by CARTO and deck.gl — basemap, layers (vector / H3 / quadbin / raster), widgets, filters, legend, inputs, optional chat-with-map agent, and the right auth strategy (public token, OAuth, SSO, M2M, or CARTO-hosted)
Character design for Chinese web novels. Use when the user wants to design protagonists, antagonists, supporting characters, or couples; create character profiles, biographies, character arcs, or relationship maps; or address characters who feel unconvincing, stereotypical, or inconsistent. Produces memorable character profiles with growth arcs that serve the story’s satisfying payoff.
Expert guidelines for Chrome extension development with Manifest V3, covering security, performance, and best practices. Use when building browser extensions, creating popup UIs, implementing content scripts, working with Chrome APIs, managing extension permissions, or publishing to Chrome Web Store.
Claude Code extensibility: agents, skills, output styles. Capabilities: create/update/delete agents and skills, YAML frontmatter, system prompts, tool/model selection, resumable agents, CLI-defined agents. Actions: create, edit, delete, optimize, test extensions. Keywords: agent, skill, output-style, SKILL.md, subagent, Task tool, progressive disclosure. Use when: creating agents/skills, editing extensions, configuring tool access, choosing models, testing activation.
Structure software around the Dependency Rule: source code dependencies point inward from frameworks to use cases to entities. Use when the user mentions "architecture layers", "dependency rule", "ports and adapters (hexagonal)", "onion architecture", "screaming architecture", "where should business logic go", "decouple from the database", "swap the framework without a rewrite", or "keep business rules independent". Also trigger when deciding which layer code belongs in, isolating core logic from infrastructure, defining module boundaries, or debating whether the framework should call your code or the reverse. Covers component principles, boundaries, and SOLID. For code-level quality, see clean-code. For domain modeling, see domain-driven-design.
Review code for readability, then simplify it to be easy to follow and understand. Use this skill when the user wants to simplify code, improve readability, clean up for handoff, make code skimmable, reduce complexity, refactor for clarity, strip boilerplate, prepare code for future maintainers, or make a codebase easier to pick up. Trigger liberally — any request touching readability, simplification, cleanup, or "make this easier to understand" should use this skill. Also trigger when the user says things like "review this", "clean this up", "tidy this", "make this simpler", "reduce complexity", "flatten this", "strip the noise", or "I want to understand this code quickly next time I open it".
Guidance for converting COBOL programs to modern languages (Python, Java, etc.) while preserving exact behavior and data format compatibility. This skill should be used when modernizing legacy COBOL applications, converting COBOL business logic to modern languages, or ensuring byte-for-byte output compatibility between COBOL and its replacement.
Development assistant for the cross-platform 2D/3D game engines Cocos Creator 3.8.x and COCOS 4. Use for writing and debugging TypeScript components, node and component systems, event systems, Tween/Animation, physics and collisions, UI (Label/Sprite/Button/Widget/Layout), asset loading and AssetBundle, scene management, performance and DrawCall optimization, and publishing to platforms such as WeChat Mini Games, Douyin Mini Games, H5, iOS, Android, and HarmonyOS Next. Use when the user mentions Cocos, Cocos Creator, Creator 3.8, COCOS 4, cocos-cli, cc modules, .scene/.prefab/.meta files, @ccclass/@property decorators, mini-game publishing, Spine animation, or game engine performance.
This skill should be used when the user asks to "check code quality", "analyze code metrics", "find dead code", "check style compliance", "measure complexity", "find unused imports", "check type hints", "run linting", "PEP8 compliance", or mentions code quality analysis.
Agent skill for interacting with code.storage, a managed Git infrastructure layer. Provides repository creation, branching, commits, file access, diffs, search, notes, GitHub sync, ephemeral branches, and forking through a RESTful HTTP API authenticated with customer-signed JWTs. Every repo operation scoped per-JWT.
Software-engineering heuristics based on Mark Seemann's Code That Fits in Your Head (2021), updated for agent-driven development. Use when writing or reviewing code, refactoring accidental complexity or a Big Ball of Mud, controlling technical or architectural debt in generated code, designing APIs and invariants, adding a feature through a walking skeleton and acceptance tests, debugging a defect with reproducible tests or bisection, threat-modelling endpoints and trust boundaries with STRIDE, planning a legacy or Strangler migration with rollback, or setting up a maintainable codebase. Covers decomposition and cyclomatic complexity, cohesion, encapsulation, outside-in TDD, separation of concerns, Git/review discipline, safe evolution, and troubleshooting. Not for language syntax, framework tutorials, production incident response, or performance profiling.
Coding Agent Harness engineering methodology. For teams doing long-horizon project development with Coding Agents (Codex, Claude Code, Gemini CLI, etc.), build a complete harness engineering system on the user's project. Includes: project diagnosis, AGENTS.md + CLAUDE.md entry file generation, coding-agent-harness/ directory setup, Planning Loop, SSoT governance, Delivery Operating Model, Repository Governance, CI/CD, Long-Running Task Protocol, Adversarial Review Report, Review Routing, Worktree parallel development, Regression SSoT and Evidence Depth tiered regression, Walkthrough / Closeout Index closeout, Cadence Ledger, task-local lesson candidates and promoted lesson detail documents, Harness Ledger global context write-back ledger. Use this skill when the user asks to set up a coding agent development process, establish a regression testing system, design AGENTS.md / CLAUDE.md, plan an execution framework for long-horizon agent tasks, sub-agent review loops, adversarial review reports, build a harness, or mentions harness engineering. Also applies to scenarios such as "help me set up a set of agent development standards", "how to keep AI from drifting off on long tasks", "how to do regression testing for agents", "help me initialize the project's harness".
Drive a local ComfyUI install for image, video, and audio generation via its HTTP API. Use WHENEVER generating, rendering, or editing images/video/audio/hero assets with ComfyUI, Z-Image, Ideogram, FLUX, LTX, Wan, or when building, parameterizing, or running ComfyUI workflows. Covers the API client, workflow JSON format, model patterns, dual/multi-GPU placement, the MCP driver, in-graph Claude nodes, and VRAM coordination.
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.