General

Anthropic's official Agent Skills repository — the reference collection of skills (instructions, scripts, resources) that agents load to do specialized work.

• AI agents
• Content operations

A large open-source collection of marketing-specific agent skills — conversion-rate optimization (CRO), copywriting, SEO, analytics, and growth engineering.

• Copywriting
• SEO & AEO
• Experimentation
• AI agents

A registry for discovering and installing agent skills across Claude Code, Cursor, Codex, and other coding agents.

• AI agents

A large open-source library of production-ready subagent personas for Claude Code — marketing, content, and business-analysis roles included.

• AI agents

A curated directory of 100+ subagent definitions organized by domain — business, marketing, engineering, and operations.

• AI agents

The canonical open-source collection of act-as personas — hundreds of role prompts, marketing roles included, portable to any model.

• AI agents
• Copywriting

OpenAI's plain-language guide to designing agent systems — single versus multi-agent architectures, guardrails, and human-in-the-loop patterns.

• AI agents
• Marketing automation

Anthropic's engineering essay on agent architectures — workflows versus agents, five composable patterns, and why simple beats clever.

• AI agents

Anthropic's open-source recipe collection — runnable notebooks for tool use, retrieval, subagents, and automation patterns.

• AI agents

Source-available workflow automation with first-class AI nodes — the engineering-friendly backbone for production marketing agents.

• Marketing automation
• Data pipelines
• AI agents

Open-source automation platform whose 280+ integrations double as MCP tools — agents call the same pieces your workflows use.

• Marketing automation
• AI agents

The open-source TypeScript toolkit for building AI features and agents — streaming, tool calls, and structured output across every major model.

• AI agents

Open-source LLM observability — traces, evals, and prompt management for the agents you run in production.

• AI agents

Open-source testing and eval harness for LLM apps — write test cases, run them across models, and catch regressions before they ship.

• AI agents
• Experimentation

Hundreds of importable marketing automation templates — lead capture, content generation, social posting, and CRM sync flows, many agent-driven.

• Marketing automation
• Lifecycle & email

The specification and documentation for MCP — the open standard that connects agents to tools, data, and marketing platforms.

• AI agents

A registry of thousands of MCP servers — search, inspect, and install connectors for ad platforms, CRMs, and analytics tools.

• AI agents