845e2f2ced
Root cause: duplicate agents wrote GOFAI code to public/nexus/app.js (wrong path) instead of root app.js. The public/nexus/ files were corrupt duplicates that got overwritten and eventually deleted, creating the illusion of disappearing code. The classical AI code is fully present in root app.js — all 13 classes verified: SymbolicEngine, AgentFSM, KnowledgeGraph, Blackboard, SymbolicPlanner, HTNPlanner, CaseBasedReasoner, NeuroSymbolicBridge, MetaReasoningLayer, AdaptiveCalibrator, PSELayer, plus A* search and bitmask fact indexing. Prevention: - Added public/nexus/ to .gitignore - Added canonical file path documentation to CLAUDE.md - Filed investigation report (INVESTIGATION_ISSUE_1145.md)
3.4 KiB
Investigation Report: Missing Source Code — Classical AI Commits Disappearing
Issue: #1145 Date: 2026-04-10 Investigator: mimo-v2-pro swarm worker
Summary
The classical AI code is NOT missing. It is fully present in root app.js (3302 lines).
The perception of "disappearing code" was caused by agents writing to the WRONG file path (public/nexus/app.js instead of root app.js), creating corrupt duplicate files that were repeatedly overwritten and eventually deleted.
Root Cause
Explanation #1 confirmed: Duplicate agents on different machines overwriting each other's commits.
Multiple Google AI Agent instances wrote GOFAI implementations to public/nexus/app.js — a path that does not correspond to the canonical app structure. These commits kept overwriting each other:
| Commit | Date | What happened |
|---|---|---|
8943cf5 |
2026-03-30 | Symbolic reasoning engine written to public/nexus/app.js (+2280 lines) |
e2df240 |
2026-03-30 | Phase 3 Neuro-Symbolic Bridge — overwrote to 284 lines of HTML (wrong path) |
7f2f23f |
2026-03-30 | Phase 4 Meta-Reasoning — same destructive overwrite |
bf3b98b |
2026-03-30 | A* Search — same destructive overwrite |
e88bcb4 |
2026-03-30 | Bug fix identified public/nexus/ files as corrupt duplicates, deleted them |
Evidence: Code Is Present on Main
All 13 classical AI classes/functions verified present in root app.js:
| Class/Function | Line | Status |
|---|---|---|
SymbolicEngine |
82 | ✅ Present |
AgentFSM |
135 | ✅ Present |
KnowledgeGraph |
160 | ✅ Present |
Blackboard |
181 | ✅ Present |
SymbolicPlanner |
210 | ✅ Present |
HTNPlanner |
295 | ✅ Present |
CaseBasedReasoner |
343 | ✅ Present |
NeuroSymbolicBridge |
392 | ✅ Present |
MetaReasoningLayer |
422 | ✅ Present |
AdaptiveCalibrator |
460 | ✅ Present |
PSELayer |
566 | ✅ Present |
setupGOFAI() |
596 | ✅ Present |
updateGOFAI() |
622 | ✅ Present |
| Bitmask fact indexing | 86 | ✅ Present |
| A* search | 231 | ✅ Present |
These were injected by commit af7a4c4 (PR #775, merged via a855d54) into the correct path.
What Actually Happened
- Google AI Agent wrote good GOFAI code to root
app.jsvia the correct PR (#775) - A second wave of Google AI Agent instances also wrote to
public/nexus/app.js(wrong path) - Those
public/nexus/files kept getting overwritten by subsequent agent commits - Commit
e88bcb4correctly identified thepublic/nexus/files as corrupt and deleted them - Alexander interpreted the git log as "classical AI code keeps disappearing"
- The code was never actually gone — it just lived in root
app.jsthe whole time
Prevention Strategy
- Add
public/nexus/to.gitignore— prevents agents from accidentally writing to the wrong path again - Add canonical path documentation to CLAUDE.md — any agent reading this repo will know where frontend code lives
- This report — serves as the audit trail so this confusion doesn't recur
Acceptance Criteria
- Git history audited for classical AI commits
- Found the commits — they exist, code was written to wrong path
- Root cause identified — duplicate agents writing to
public/nexus/(wrong path) - Prevention strategy implemented —
.gitignore+CLAUDE.mdpath guard - Report filed with findings (this document)