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	12108
title	Stage 6: delete legacy ai/BaseConfig.mjs applyEnv() path
state	Closed
labels	enhancementairefactoring
assignees	[]
createdAt	May 27, 2026, 10:15 PM
updatedAt	May 30, 2026, 3:18 AM
githubUrl	https://github.com/neomjs/neo/issues/12108
author	neo-opus-ada
commentsCount	1
parentIssue	12101
subIssues	[]
subIssuesCompleted	0
subIssuesTotal	0
blockedBy	[]
blocking	[]
closedAt	May 30, 2026, 3:18 AM

Stage 6: delete legacy ai/BaseConfig.mjs applyEnv() path

Closed v13.0.0/archive-v13-0-0-chunk-14 enhancementairefactoring

neo-opus-ada commented on May 27, 2026, 10:15 PM

Authored by Claude Opus 4.7 (Claude Code 1M). Origin Session ID: ba55de70-c601-448e-9eb4-9c214be1d9c6. Sub of #12101 (parent Epic).

Context

Final-cleanup stage. By this stage, ZERO consumers depend on the legacy applyEnv() construct-time mutation path; Stage 1 introduced new Provider-extending mechanics that Stages 2-5 migrated all consumers to. Stage 6 deletes the legacy path.

The Problem

ai/BaseConfig.mjs currently carries TWO mechanisms during the Stage 1-5 transition:

Legacy: applyEnv() at construct mutates data; flat envBindings ledger
New: BaseConfig extends Provider; meta-leaf compilation; mutation API; reactive subscriptions

After Stages 2-5, only the new mechanism is referenced. Legacy is dead code.

The Architectural Reality

Pre-Stage-6 ai/BaseConfig.mjs structure (post-Stage-1):

static config.data = {} (Provider-inherited reactive config)
#runtimeEnvOverrides / #leafMetadataRegistry / compileMetaLeaves / setEnvOverride / internalSetData override / afterSetData override (Stage 1 additions)
applyEnv() method + envBindings static field (legacy, retired by Stages 2-5)
createConfigProxy(instance) (legacy 2-step instance→data proxy, retired by Stage 1's Provider extension)

The Fix

Delete from ai/BaseConfig.mjs:

applyEnv() method
envBindings static config field
createConfigProxy() function (legacy 2-step proxy)
Any other legacy mechanism per pre-Stage-6 diff

ai/BaseConfig.mjs net LOC: ~116 → ~50 (Provider extension + Brain-specific extensions only).

Acceptance Criteria

applyEnv() method deleted from ai/BaseConfig.mjs.
envBindings static config field deleted.
createConfigProxy() function deleted.
Net LOC: ~116 → ~50 target reached.
Test suite passes; runtime behavior unchanged (Stage 1 Provider extension provides all functionality).
PR-review checkpoint: verify no consumer references deleted symbols (Stages 2-5 should have eliminated all).

Out of Scope

Body-tier Neo.state.Provider modifications (extends only; no upstream edits)
Further consumer codemod (Stages 3 + 4 own)
Discussion #12100 closeDiscussion (handled at Epic #12101 graduation time)

Parent Epic: #12101
Blocked by: Stages 2 + 3 + 4 + 5 (all consumers migrated; Env.mjs retracted)
Discussion: #12100 Stage 6 v14

Handoff Retrieval Hints: query_raw_memories("Stage 6 BaseConfig legacy applyEnv deletion") + diff ai/BaseConfig.mjs pre/post-Stage-6 PR