What is Agentation used for?

Agentation is a visual feedback toolbar that lets you click page elements, add notes and hand structured output to AI coding agents. It is a good fit for giving precise UI feedback to coding agents and pointing agents to the right component.

Is Agentation open source?

Yes. Agentation is open source under a custom licence. Its source code is on GitHub at benjitaylor/agentation and is written mainly in TypeScript.

Yes. Agentation is open source, so the software itself is free to use under the terms of its own licence.

What are some alternatives to Agentation?

Similar open-source tools in the Developer Tools category include Docs MCP Server, Visual Studio Code and code-server. SaaS products in the same category include Doc0, 1DevTool and act101.

Is Agentation actively maintained?

Yes. The most recent commit to Agentation was on 22 September 2026, and the latest release is v3.1.0, published on 21 September 2026. The project has 4.8k stars on GitHub.

Agentation: open-source developer tools

About Agentation

Agentation is an agent-agnostic visual feedback tool for working with AI coding agents. You click elements on your running page, write notes about what should change, and copy structured output that helps an agent locate the exact code you mean, instead of describing the element in words.

A toolbar appears in the bottom-right corner of the page, and clicking it activates annotation mode. You can paste the copied feedback into Claude Code, Codex, Gemini, Grok or any other AI tool. For direct synchronization, you can add the agentation-mcp server to your MCP client and point the toolbar at its HTTP endpoint, so the agent can read annotations on its own. The project is written in TypeScript.

The repository license is listed as 'Other', so confirm the terms for your use. Agentation runs in your own development environment. It suits front-end developers and designers who give UI feedback to coding agents and want it to be precise.

Key features

Click-to-annotate page elements
Structured feedback output for agents
Works with Claude Code, Codex and Gemini
MCP server for direct sync
Toolbar overlay on your running page
Works with any AI agent

Good fit for

→Giving precise UI feedback to coding agents
→Pointing agents to the right component

Built with: TypeScript
Tags: ai-agents; visual-feedback; mcp; design-tools; developer-tools; ui; typescript

Agentation: questions and answers

What is Agentation used for?: Agentation is a visual feedback toolbar that lets you click page elements, add notes and hand structured output to AI coding agents. It is a good fit for giving precise UI feedback to coding agents and pointing agents to the right component.
Is Agentation open source?: Yes. Agentation is open source under a custom licence. Its source code is on GitHub at benjitaylor/agentation and is written mainly in TypeScript.
Is Agentation free?: Yes. Agentation is open source, so the software itself is free to use under the terms of its own licence.
What are some alternatives to Agentation?: Similar open-source tools in the Developer Tools category include Docs MCP Server, Visual Studio Code and code-server. SaaS products in the same category include Doc0, 1DevTool and act101.
Is Agentation actively maintained?: Yes. The most recent commit to Agentation was on 22 September 2026, and the latest release is v3.1.0, published on 21 September 2026. The project has 4.8k stars on GitHub.