What is the 'Neural Link'?

The Neural Link is a bi-directional bridge that connects AI agents (like Gemini or Claude) directly to the Neo.mjs runtime. It allows agents to 'see' the application's Scene Graph, inspect component state, verify event listeners, and even mutate the running application in real-time. This turns the application into a 'glass box' for AI, enabling autonomous debugging and feature development.

Why is Neo.mjs called an 'Application Engine' instead of a framework?

Traditional frameworks are general-purpose libraries (like a Toyota) that help you organize code, but they compile away into ephemeral DOM nodes. Neo.mjs is a precision-engineered runtime (like an F1 car), similar to Unreal Engine for games. It maintains a persistent 'Scene Graph' of objects in a separate worker thread. These objects retain their identity, state, and relationships, allowing for advanced capabilities like multi-window orchestration, runtime permutation, and deep AI introspection that are impossible with 'melted plastic' DOM-based frameworks.

What is 'Context Engineering'?

Context Engineering is the practice of curating the environment and information flow for AI agents to maximize their autonomy. In Neo.mjs, this is implemented via three Model Context Protocol (MCP) servers: a Knowledge Base for semantic code understanding, a Memory Core for learning from past sessions, and a GitHub Workflow server for project management. This ecosystem allows agents to work as fully integrated members of the development team.

What is 'Object Permanence' in the context of Neo.mjs?

In Neo.mjs, UI components are persistent JavaScript objects living in the App Worker, not just transient rendering results. This 'Object Permanence' means a component (like a Dashboard) maintains its state (scroll position, user input, internal logic) even if it is detached from the DOM or moved to a different browser window. This is the 'Lego Technic' approach versus the 'Duplo' approach of traditional frameworks.

What is an 'Agent Operating System'?

Neo.mjs v11 introduced the concept of an Agent OS, where the platform itself provides the tools and interfaces for AI agents to operate. It combines a standalone, type-safe AI SDK for autonomous 'Code Execution' with the Neural Link for runtime control. This enables agents to monitor, debug, and heal the application autonomously, effectively acting as an operating system for synthetic intelligence.

How does Neo.mjs handle multi-window applications?

Neo.mjs uses shared web workers to run a single application instance across multiple browser windows. All windows share the same application state and data in real-time. Components can even move between windows while retaining their JavaScript instances. This enables desktop-class experiences like multi-window IDEs, browser-based email clients, and multi-screen control rooms.

What makes Neo.mjs different from React, Angular, or Vue?

Neo.mjs is fundamentally different in its architecture: (1) It uses True Multithreading via web workers to prevent UI jank, (2) It is an AI-Native Application Engine with built-in bridges for AI collaboration, and (3) It treats components as persistent objects in a Scene Graph, enabling native multi-window support and runtime permutation.

Frontmatter

id	9526
title	Add visual focus styling during grid column resizing
state	Closed
labels	enhancementaigrid
assignees	tobiu
createdAt	Mar 20, 2026, 1:55 PM
updatedAt	Mar 20, 2026, 2:01 PM
githubUrl	https://github.com/neomjs/neo/issues/9526
author	tobiu
commentsCount	2
parentIssue	null
subIssues	[]
subIssuesCompleted	0
subIssuesTotal	0
blockedBy	[]
blocking	[]
closedAt	Mar 20, 2026, 2:01 PM

Add visual focus styling during grid column resizing

Name: Neo.mjs Application Engine
Author: Neo.mjs

Closed v12.1.0 enhancementaigrid

tobiu commented on Mar 20, 2026, 1:55 PM

Description

To provide better visual feedback during a column resize, we should dim the inactive header buttons. Since the base plugin.Resizable already sets the inline opacity of the actively resized button to 0.3 and the floating drag proxy to 0.7, dimming the rest of the toolbar will make the drag proxy clearly stand out.

Tasks

In src/grid/header/plugin/Resizable.mjs, override onDragStart to add a neo-is-resizing class to the parent grid.header.Toolbar.
In onDragEnd, remove the neo-is-resizing class from the toolbar.
Add SCSS rules to resources/scss/src/grid/header/Toolbar.scss to lower the opacity of .neo-grid-header-button when the toolbar has the neo-is-resizing class.

tobiu added the enhancement label on Mar 20, 2026, 1:55 PM

tobiu added the ai label on Mar 20, 2026, 1:55 PM

tobiu added the grid label on Mar 20, 2026, 1:55 PM

tobiu assigned to @tobiu on Mar 20, 2026, 1:55 PM

tobiu referenced in commit 1387614 - "feat(grid): add visual focus styling during column resizing (#9526) on Mar 20, 2026, 1:59 PM

tobiu Mar 20, 2026, 2:00 PM

Input from Gemini 3.1 Pro:

✦ Implemented in commit 13876140c. The grid.header.Toolbar now receives a .neo-is-resizing class during drag operations, which dims all child buttons to opacity: 0.3. Since the resize drag proxy operates at the document body level with opacity: 0.7, it visually pops out cleanly. Used addCls and removeCls shortcuts from Neo.component.Base for robust manipulation.

tobiu Mar 20, 2026, 2:00 PM

Current progress:

https://github.com/user-attachments/assets/56cc359c-9145-476a-bd58-3057cdb97813

tobiu closed this issue on Mar 20, 2026, 2:01 PM