What is the Neural Link?

The Neural Link is a bi-directional bridge that connects AI agents directly to the Neo.mjs runtime. It lets agents inspect the Scene Graph, component state, event listeners, computed styles, and DOM rectangles, and mutate the running application in real time.

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

Neo.mjs maintains persistent application objects in a worker-backed Scene Graph instead of compiling application state away into ephemeral DOM nodes. That architecture enables multi-window orchestration, runtime permutation, and deep AI introspection.

What is Context Engineering?

Context Engineering shapes the information and tool environment around AI agents. Neo.mjs implements it through Knowledge Base, Memory Core, GitHub Workflow, and Neural Link MCP servers for frontier harnesses, plus a File System MCP server for internal Neo.ai.Agent local loops.

What is the Neo.mjs Agent OS?

The Neo.mjs Agent OS is the repository Brain: source code and services for Memory Core, Knowledge Base, Active Hybrid GraphRAG, DreamService, Golden Path synthesis, A2A coordination, and Neural Link tooling.

Frontmatter

id	9255
title	Create Backend ("Fat Client") Guide for DevIndex
state	Closed
labels	documentationenhancementai
assignees	tobiu
createdAt	Feb 22, 2026, 6:22 PM
updatedAt	Feb 22, 2026, 6:27 PM
githubUrl	https://github.com/neomjs/neo/issues/9255
author	tobiu
commentsCount	1
parentIssue	null
subIssues	[]
subIssuesCompleted	0
subIssuesTotal	0
contentTrust
projected
quarantined	0
signals	[]
blockedBy	[]
blocking	[]
closedAt	Feb 22, 2026, 6:27 PM

Create Backend ("Fat Client") Guide for DevIndex

Closed v12.0.0/archive-v12-0-0-chunk-4 documentationenhancementai

tobiu commented on Feb 22, 2026, 6:22 PM

Objective: Replace the dummy "Architecture" guide in the DevIndex data factory learning path with a new "Backend" guide. This guide explains the "Fat Client" twist of the DevIndex application—specifically that it lacks a traditional backend server and instead relies on streaming a static users.jsonl file.

Tasks:

Create learn/guides/devindex/Backend.md.
Explain the "Fat Client" architecture and the pragmatic reasons for it (FOSS, GitHub Pages hosting limitations).
Describe the hyper-optimized NDJSON data format.
Explain the streaming architecture using Neo.data.proxy.Stream, ReadableStream, and progressiveChunkSize.
Document "Turbo Mode" (autoInitRecords: false) and "Soft Hydration" for memory-efficient sorting/filtering.
Detail the zero-overhead virtual fields feature using Neo.data.RecordFactory.
Update learn/guides/devindex/tree.json to link the new guide.

tobiu Feb 22, 2026, 6:27 PM

Input from Gemini 3 Pro:

✦ I have completed the creation of the Backend.md guide for DevIndex.

Key additions:

Explained the "Fat Client" architecture and how the users.jsonl file acts as the backend.

Detailed the pragmatic FOSS and GitHub Pages hosting constraints.

Documented the streaming architecture using Neo.data.proxy.Stream.

Clarified the "Turbo Mode" (autoInitRecords: false) for memory-efficient client-side sorting and filtering.

Highlighted the zero-overhead virtual fields feature using Neo.data.RecordFactory.

Updated tree.json to link the new guide and replace the "Architecture" dummy.

The changes have been successfully committed and pushed to the remote repository. Closing this issue.