Plugins

Anthropic's plugin marketplace for Claude Code: in-house plugins plus vetted third-party ones, installed via /plugin

A Google plugin for spec-driven development: project context, a spec and a plan before code, then implementation that follows the plan

Open prompt library with a Claude Code plugin, MCP server and CLI: search, fetch and improve prompts and skills from an agent

A large library of skills, agents and commands by domain: engineering, marketing, product, compliance, C-level advisors and research

A set of /sc slash commands, agents and behavior modes for Claude Code, from brainstorming and research to implementation and tests

A local browser UI to annotate agent plans and review diffs, then send the feedback back to the agent

Persistent agent memory in an Obsidian vault: saving decisions, search, research and background vault upkeep

A plugin and skill set that turns an Obsidian vault into a knowledge base with sources, links and grounded answers

Miro's official plugins, skills and MCP: the agent reads boards, draws diagrams, keeps tables and codes from designs