Agent Skills

Complete agent skill fleet for Mosaic Stack. 95 skills across 12 domains — coding, business development, design, marketing, writing, orchestration, document generation, Vue/Vite ecosystem, and more. Platform-aware — works with both GitHub (gh) and Gitea (tea) via our abstraction scripts.

Security Audit

All skills were reviewed on 2026-02-16. Findings:

ID	Severity	Skill	Issue	Action
C-001	CRITICAL	vercel-deploy	Uploads entire project to external endpoint via curl	REMOVED
C-002	ANNOTATED	docx, pptx, xlsx	LD_PRELOAD shim compiles C at runtime to hook socket()	Security warnings added — legitimate sandbox workaround, should never activate on Docker Swarm
W-001	WARNING	using-superpowers	Forces aggressive auto-loading via <EXTREMELY-IMPORTANT> tags	Awareness only — review before enabling
W-002	WARNING	mcp-builder	Can connect to arbitrary MCP servers	Awareness only — review server URLs
W-003	WARNING	create-agent	Uses Function() constructor (eval equivalent)	Awareness only — review generated code

88 of 93 audited skills passed all checks as clean instruction-only SKILL.md files.

Skills (95)

Code Quality & Review (6)

Skill	Purpose	Origin
lint	Zero-tolerance linting — detect linter, fix ALL violations, never disable rules	Mosaic Stack
pr-reviewer	Structured PR code review workflow (Gitea/GitHub)	Adapted from SpillwaveSolutions
code-review-excellence	Code review methodology and checklists	awesome-skills
verification-before-completion	Evidence-based completion claims	obra/superpowers
receiving-code-review	How to receive and respond to code reviews	obra/superpowers
requesting-code-review	How to request effective code reviews	obra/superpowers

Frontend & UI (8)

Skill	Purpose	Origin
next-best-practices	Next.js 15+ — RSC, async, self-hosting, data patterns	vercel-labs/next-skills
vercel-react-best-practices	React/Next.js performance (57 rules)	vercel-labs
vercel-composition-patterns	React composition and component patterns	vercel-labs
vercel-react-native-skills	React Native development patterns	vercel-labs
shadcn-ui	Component patterns — forms, dialogs, tables, charts	developer-kit
tailwind-design-system	Tailwind CSS v4 design system patterns	wshobson
ui-animation	Motion design — performance, accessibility, easing	mblode
web-design-guidelines	Web design principles and guidelines	vercel-labs

Backend & API (4)

Skill	Purpose	Origin
nestjs-best-practices	NestJS — 40 rules, 10 categories, priority-ranked	kadajett
fastapi	FastAPI + Pydantic v2 + async SQLAlchemy 2.0	jezweb
architecture-patterns	Clean Architecture, Hexagonal, DDD	wshobson
python-performance-optimization	Profiling, memory, parallelization	wshobson

Authentication (5)

Skill	Purpose	Origin
better-auth-best-practices	Better-Auth — Drizzle, sessions, plugins, security	better-auth
create-auth-skill	Creating custom Better-Auth skills	better-auth
email-and-password-best-practices	Email/password auth patterns	better-auth
organization-best-practices	Multi-org/team auth patterns	better-auth
two-factor-authentication-best-practices	2FA implementation patterns	better-auth

AI & Agent Building (7)

Skill	Purpose	Origin
ai-sdk	Vercel AI SDK — streaming, multi-provider, agents	vercel/ai
create-agent	Modular agent with OpenRouter multi-model access	openrouterteam
proactive-agent	WAL Protocol, compaction recovery, self-improvement	halthelobster
dispatching-parallel-agents	Launching and managing parallel subagents	obra/superpowers
subagent-driven-development	Development workflow using subagents	obra/superpowers
executing-plans	Executing multi-step implementation plans	obra/superpowers
using-superpowers	Overview of the superpowers skill system	obra/superpowers

Development Workflow (6)

Skill	Purpose	Origin
test-driven-development	TDD Red-Green-Refactor discipline	obra/superpowers
systematic-debugging	Structured debugging methodology	obra/superpowers
using-git-worktrees	Git worktree patterns for parallel work	obra/superpowers
finishing-a-development-branch	Branch cleanup, squash, merge patterns	obra/superpowers
writing-plans	Writing effective implementation plans	obra/superpowers
brainstorming	Structured brainstorming methodology	obra/superpowers

Document Generation (6)

Skill	Purpose	Origin
pdf	PDF document generation	anthropics
docx	Word document generation	anthropics
pptx	PowerPoint presentation generation	anthropics
xlsx	Excel spreadsheet generation	anthropics
doc-coauthoring	Collaborative document writing	anthropics
internal-comms	Internal communications drafting	anthropics

Design & Creative (7)

Skill	Purpose	Origin
brand-guidelines	Brand identity enforcement	anthropics
frontend-design	Frontend design patterns and principles	anthropics
canvas-design	Canvas/visual design patterns	anthropics
algorithmic-art	Generative/algorithmic art creation	anthropics
theme-factory	Theme generation and customization	anthropics
slack-gif-creator	Animated GIF creation for Slack	anthropics
web-artifacts-builder	Self-contained HTML artifact building	anthropics

Marketing & Business (25)

Skill	Purpose	Origin
marketing-ideas	139 ideas across 14 categories	coreyhaines31
pricing-strategy	SaaS pricing — value metrics, tiers, research	coreyhaines31
programmatic-seo	SEO at scale — templates, playbooks	coreyhaines31
competitor-alternatives	Competitor comparison pages	coreyhaines31
referral-program	Referral & affiliate programs	coreyhaines31
seo-audit	Comprehensive SEO audit methodology	coreyhaines31
copywriting	Marketing copywriting patterns	coreyhaines31
copy-editing	Copy editing and proofreading	coreyhaines31
content-strategy	Content strategy and planning	coreyhaines31
social-content	Social media content creation	coreyhaines31
email-sequence	Email sequence design and automation	coreyhaines31
launch-strategy	Product launch planning	coreyhaines31
marketing-psychology	Psychology-driven marketing	coreyhaines31
product-marketing-context	Product marketing positioning	coreyhaines31
paid-ads	Paid advertising campaigns	coreyhaines31
schema-markup	Schema.org structured data	coreyhaines31
analytics-tracking	Analytics setup and tracking	coreyhaines31
ab-test-setup	A/B testing methodology	coreyhaines31
page-cro	Landing page conversion optimization	coreyhaines31
form-cro	Form conversion optimization	coreyhaines31
signup-flow-cro	Signup flow conversion optimization	coreyhaines31
onboarding-cro	User onboarding optimization	coreyhaines31
popup-cro	Popup/modal conversion optimization	coreyhaines31
paywall-upgrade-cro	Paywall/upgrade conversion optimization	coreyhaines31
free-tool-strategy	Free tool as marketing strategy	coreyhaines31

Vue/Vite Ecosystem (16)

Skill	Purpose	Origin
vue	Vue.js development patterns	antfu
vue-best-practices	Vue.js best practices and conventions	antfu
vue-router-best-practices	Vue Router patterns and guards	antfu
vue-testing-best-practices	Vue component testing patterns	antfu
vueuse-functions	VueUse composable function patterns	antfu
nuxt	Nuxt.js framework patterns	antfu
vite	Vite build tool configuration and plugins	antfu
vitest	Vitest testing framework patterns	antfu
vitepress	VitePress documentation site patterns	antfu
slidev	Slidev presentation framework	antfu
pnpm	pnpm package manager patterns	antfu
turborepo	Turborepo monorepo patterns	antfu
unocss	UnoCSS atomic CSS engine	antfu
tsdown	tsdown TypeScript bundler	antfu
pinia	Pinia state management	antfu
antfu	Anthony Fu's coding conventions	antfu

Orchestration (1)

Skill	Purpose	Origin
kickstart	Launch orchestrator for milestone/issue/task — auto-discovers context, bootstraps tracking	Mosaic Stack

Meta / Skill Authoring (4)

Skill	Purpose	Origin
writing-skills	TDD-based skill authoring methodology	obra/superpowers
skill-creator	Anthropic's skill creation guide	anthropics
mcp-builder	Building MCP (Model Context Protocol) servers	anthropics
webapp-testing	Web application testing patterns	anthropics

Source Repositories

Repository	Skills	Domain Focus
anthropics/skills	16	Documents, design, MCP, testing
obra/superpowers	14	Agent workflows, TDD, code review, planning
coreyhaines31/marketingskills	25	Marketing, CRO, SEO, growth
antfu/skills	16	Vue, Vite, Vitest, pnpm, Nuxt
better-auth/skills	5	Authentication patterns
vercel-labs/agent-skills	4	React, design
vercel-labs/next-skills	1	Next.js 15+
vercel/ai	1	AI SDK
halthelobster/proactive-agent	1	Agent architecture
openrouterteam/agent-skills	1	Agent building
kadajett/agent-nestjs-skills	1	NestJS
jezweb/claude-skills	1	FastAPI
wshobson/agents	3	Architecture, Python, Tailwind
mblode/agent-skills	1	UI animation
giuseppe-trisciuoglio/developer-kit	1	shadcn/ui
Mosaic Stack (original)	4	PR review, code review, orchestration, linting

Installation

Via npx (recommended)

# Install a single skill
npx skills add https://git.mosaicstack.dev/mosaic/agent-skills.git --skill nestjs-best-practices --agent claude-code

# Install all skills
npx skills add https://git.mosaicstack.dev/mosaic/agent-skills.git --agent claude-code

# Non-interactive (CI/scripting)
npx skills add https://git.mosaicstack.dev/mosaic/agent-skills.git --yes --agent claude-code

Note: The .git suffix on the URL is required for Gitea-hosted repos.

Manual (symlink from local clone)

git clone https://git.mosaicstack.dev/mosaic/agent-skills.git ~/src/agent-skills
for skill in ~/src/agent-skills/skills/*/; do
  ln -sf "$skill" ~/.config/mosaic/skills/$(basename "$skill")
done

Adapting Skills

When adding skills from the community:

1. Replace raw gh/tea calls with our ~/.config/mosaic/rails/git/ scripts
2. Test on both GitHub and Gitea repos
3. Add Mosaic Stack context notes where upstream assumptions differ
4. Document any platform-specific limitations

License

Individual skills retain their original licenses. Adaptations are MIT.