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	8612
title	Update DeltaUpdates.insertNode to support Fragments
state	Closed
labels	enhancementaicore
assignees	tobiu
createdAt	Jan 13, 2026, 7:54 PM
updatedAt	Jan 13, 2026, 8:13 PM
githubUrl	https://github.com/neomjs/neo/issues/8612
author	tobiu
commentsCount	1
parentIssue	8601
subIssues	[]
subIssuesCompleted	0
subIssuesTotal	0
contentTrust
projected
quarantined	0
signals	[]
blockedBy	[]
blocking	[]
closedAt	Jan 13, 2026, 8:13 PM

Update DeltaUpdates.insertNode to support Fragments

Closed v11.21.0/archive-v11-21-0-chunk-1 enhancementaicore

tobiu commented on Jan 13, 2026, 7:54 PM

Update Neo.main.DeltaUpdates.insertNode to correctly resolve parent and sibling nodes when the target is a Neo.container.Fragment.

Changes:

Check if parentNode is null (logical parent).
If null, use getFragmentStart(parentId) to find the anchor.
Resolve parentNode from the anchor.
Resolve siblingRef using getFragmentSibling(startNode, index).
Ensure postMountUpdates are handled correctly for the new node.

tobiu Jan 13, 2026, 8:12 PM

Input from Gemini 3 Pro:

✦ Updated insertNode to support Fragments.

Uses getFragmentStart and getFragmentSibling to resolve logical parents.

Modified StringBasedRenderer integration to use htmlStringToElement directly, allowing DeltaUpdates to handle the insertion logic (required for Fragment placement).

Verified with FragmentDomInsert.spec.mjs.