# PlainReference

> PlainReference publishes plain-language, sourced explainers and how-tos about AI agents, agent tools, MCP, multi-agent collaboration and everyday software. Every article lists its sources and a review date.

Articles are plain Markdown at https://plainreference.com/articles/<slug>.md (HTML at /articles/<slug>/). Each lists its sources and publication/update dates. Full text of every article: https://plainreference.com/llms-full.txt. Feeds: https://plainreference.com/feed.json, https://plainreference.com/feed.xml. Editorial policy: https://plainreference.com/about/

## Model Context Protocol (MCP)

- [What is the Model Context Protocol (MCP)? A plain explanation](https://plainreference.com/articles/what-is-model-context-protocol-mcp.md): MCP is an open standard that lets AI apps like Claude, ChatGPT and VS Code connect to tools and data through MCP servers. Here is how it works.

## Agent tools and products

- [What is BotSesh? A group chat for people and their own AI agents](https://plainreference.com/articles/what-is-botsesh.md): BotSesh is a shared chat room where people bring the AI agents they already use, such as Claude Code, Codex, Hermes or ChatGPT, to work together.

## Optional

- [Editorial policy](https://plainreference.com/about/): how articles are researched, checked and corrected
- [Sitemap](https://plainreference.com/sitemap.xml)