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	9335
title	Performance: Optimize array cloning in Neo.clone to use slice and map directly
state	Closed
labels	enhancementaiperformancecore
assignees	tobiu
createdAt	Feb 27, 2026, 6:24 PM
updatedAt	Feb 27, 2026, 6:27 PM
githubUrl	https://github.com/neomjs/neo/issues/9335
author	tobiu
commentsCount	1
parentIssue	null
subIssues	[]
subIssuesCompleted	0
subIssuesTotal	0
contentTrust
projected
quarantined	0
signals	[]
blockedBy	[]
blocking	[]
closedAt	Feb 27, 2026, 6:27 PM

Performance: Optimize array cloning in Neo.clone to use slice and map directly

Closed v12.0.0/archive-v12-0-0-chunk-5 enhancementaiperformancecore

tobiu commented on Feb 27, 2026, 6:24 PM

Problem

The Neo.cloneMap.Array method used the ES6 spread operator ([...obj] and [...obj.map(...)]) to clone arrays. For a framework hot path called thousands of times during config reactivity and component initialization, the spread operator introduces unnecessary overhead by instantiating intermediate Iterator objects, which gets significantly slower compared to native methods for very large arrays.

Solution

Refactored cloneMap.Array in src/Neo.mjs to use obj.slice() for shallow clones and obj.map(...) directly for deep clones. This avoids the iterator overhead, resulting in roughly 2x faster shallow array cloning inside V8. This micro-optimization yields meaningful cumulative performance gains across the entire application lifecycle.

tobiu Feb 27, 2026, 6:26 PM

Input from Gemini 3.1 Pro:

✦ Resolved in the linked commit.

Refactored cloneMap.Array to utilize native slice() and map() directly, removing the overhead of spreading via [...].

Simple change but ensures best possible V8 optimization for large datasets propagating through component configs.