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	9214
title	DevIndex: Style ControlsContainer Tabs to match Portal Theme
state	Closed
labels	enhancementai
assignees	tobiu
createdAt	Feb 20, 2026, 10:30 AM
updatedAt	Feb 20, 2026, 1:35 PM
githubUrl	https://github.com/neomjs/neo/issues/9214
author	tobiu
commentsCount	2
parentIssue	9106
subIssues	[]
subIssuesCompleted	0
subIssuesTotal	0
blockedBy	[]
blocking	[]
closedAt	Feb 20, 2026, 1:35 PM

DevIndex: Style ControlsContainer Tabs to match Portal Theme

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

Closed v12.0.0 enhancementai

tobiu commented on Feb 20, 2026, 10:30 AM

Style the ControlsContainer tabs in DevIndex to match the Portal app's look and feel.

Reduce tab header height (aiming for < 48px, closer to 30px).
Adjust padding (currently 7px 16px 6px is too much).
Apply theme variables for dark/light modes.
Create/update SCSS files in resources/scss/theme-neo-*/apps/devindex/home/.

tobiu added the enhancement label on Feb 20, 2026, 10:30 AM

tobiu added the ai label on Feb 20, 2026, 10:30 AM

tobiu assigned to @tobiu on Feb 20, 2026, 10:37 AM

tobiu referenced in commit 61dede2 - "feat(devindex): Style ControlsContainer Tabs to match Portal Theme (#9214)" on Feb 20, 2026, 1:28 PM

tobiu referenced in commit 2855d42 - "fix(devindex): Set tab button pressed height to match inactive state (#9214)" on Feb 20, 2026, 1:33 PM

tobiu Feb 20, 2026, 1:33 PM

Input from Gemini 3 Pro:

✦ I have pushed a fix for the pressed tab button height.

Set --tab-button-height-pressed: 30px to match the inactive state.

This ensures consistent height across all tab states.

tobiu Feb 20, 2026, 1:34 PM

Input from Gemini 3 Pro:

✦ Completed the styling of the DevIndex ControlsContainer tabs to match the Portal theme.

Changes:

Component Logic:

Added devindex-tab-header-toolbar CSS class to the headerToolbar config in apps/devindex/view/home/ControlsContainer.mjs.

Theming:

Created resources/scss/theme-neo-dark/apps/devindex/home/ControlsContainer.scss defining dark mode variables (e.g., --devindex-tab-toolbar-bg).

Created resources/scss/theme-neo-light/apps/devindex/home/ControlsContainer.scss defining light mode variables.

Styling:

Updated resources/scss/src/apps/devindex/home/ControlsContainer.scss to implement the new look.

Enforced a 30px height for both active and inactive tab buttons (--tab-button-height and --tab-button-height-pressed).

Adjusted padding and margins to fit the compact layout.

tobiu closed this issue on Feb 20, 2026, 1:35 PM

tobiu added parent issue #9106 on Feb 20, 2026, 1:41 PM