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	8614
title	Fix moveNode off-by-one error for forward moves in same parent
state	Closed
labels	bugaicore
assignees	tobiu
createdAt	Jan 13, 2026, 8:25 PM
updatedAt	Jan 13, 2026, 8:41 PM
githubUrl	https://github.com/neomjs/neo/issues/8614
author	tobiu
commentsCount	1
parentIssue	8601
subIssues	[]
subIssuesCompleted	0
subIssuesTotal	0
contentTrust
projected
quarantined	0
signals	[]
blockedBy	[]
blocking	[]
closedAt	Jan 13, 2026, 8:41 PM

Fix moveNode off-by-one error for forward moves in same parent

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

tobiu commented on Jan 13, 2026, 8:25 PM

When moving a node forward within the same physical parent, DeltaUpdates.moveNode fails to account for the node's current position affecting childNodes indices. Test case: ['A', 'B', 'C']. Move 'A' to index 2 (after C). childNodes[2] is 'C'. insertBefore(A, C) results in ['B', 'A', 'C']. Expected: ['B', 'C', 'A'].

Fix: In Neo.main.DeltaUpdates.moveNode: If node.parentNode === parentNode (moving within same parent) AND currentIndex < index (moving forward), increment the lookup index for siblingRef (or check if index >= length - 1 for append).

tobiu Jan 13, 2026, 8:41 PM

Input from Gemini 3 Pro:

✦ Fixed the off-by-one error in DeltaUpdates.moveNode by adjusting index for same-parent forward moves. Also fixed App.moveComponent to correctly invoke remove(item, false, true) (Silent) to prevent double updates during moves, ensuring atomic moveNode deltas. Verified with FragmentLifecycle.spec.mjs.