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Alexander Whitestone
3fbcdd606a docs: verify #1413 already implemented
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2026-04-15 01:11:38 -04:00
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GENOME.md
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# GENOME.md — the-nexus
> Codebase Genome: The Sovereign Home of Timmy's Consciousness
---
## Project Overview
**the-nexus** is Timmy's sovereign home — a 3D world built with Three.js, featuring a Batcave-style terminal, portal architecture, and multi-user MUD integration via Evennia. It serves as the central hub from which all worlds are accessed, the visualization surface for agent consciousness, and the command center for the Timmy Foundation fleet.
**Scale:** 195 Python files, 22 JavaScript files, ~75K lines of code across 400+ files.
---
## Architecture
```mermaid
graph TB
subgraph "Frontend Layer"
IDX[index.html]
BOOT[boot.js]
COMP[nexus/components/*]
PLAY[playground/playground.html]
end
subgraph "Backend Layer"
SRV[server.py<br/>WebSocket Gateway :8765]
BRIDGE[multi_user_bridge.py<br/>Evennia MUD Bridge]
LLAMA[nexus/llama_provider.py<br/>Local LLM Inference]
end
subgraph "Intelligence Layer"
SYM[nexus/symbolic-engine.js<br/>Symbolic Reasoning]
THINK[nexus/nexus_think.py<br/>Consciousness Loop]
PERCEP[nexus/perception_adapter.py<br/>Perception Buffer]
TRAJ[nexus/trajectory_logger.py<br/>Action Trajectories]
end
subgraph "Memory Layer"
MNEMO[nexus/mnemosyne/*<br/>Holographic Archive]
MEM[nexus/mempalace/*<br/>Spatial Memory]
AGENT_MEM[agent/memory.py<br/>Cross-Session Memory]
EXP[nexus/experience_store.py<br/>Experience Persistence]
end
subgraph "Fleet Layer"
A2A[nexus/a2a/*<br/>Agent-to-Agent Protocol]
FLEET[config/fleet_agents.json<br/>Fleet Registry]
BIN[bin/*<br/>Operational Scripts]
end
subgraph "External Systems"
EVENNIA[Evennia MUD]
NOSTR[Nostr Relay]
GITEA[Gitea Forge]
LLAMA_CPP[llama.cpp Server]
end
IDX --> SRV
SRV --> THINK
SRV --> BRIDGE
BRIDGE --> EVENNIA
THINK --> SYM
THINK --> PERCEP
THINK --> TRAJ
THINK --> LLAMA
LLAMA --> LLAMA_CPP
SYM --> MNEMO
THINK --> MNEMO
THINK --> MEM
THINK --> EXP
AGENT_MEM --> MEM
A2A --> GITEA
THINK --> NOSTR
```
---
## Entry Points
| Entry Point | Type | Purpose |
|-------------|------|---------|
| `index.html` | Browser | Main 3D world (Three.js) |
| `server.py` | Python | WebSocket gateway on :8765 |
| `boot.js` | Browser | Module loader, file protocol guard |
| `multi_user_bridge.py` | Python | Evennia MUD ↔ AI agent bridge |
| `nexus/a2a/server.py` | Python | A2A JSON-RPC server |
| `nexus/mnemosyne/cli.py` | CLI | Archive management |
| `bin/nexus_watchdog.py` | Script | Health monitoring |
| `scripts/smoke.mjs` | Script | Smoke tests |
---
## Data Flow
```
User (Browser)
index.html (Three.js 3D world)
├── WebSocket ──► server.py :8765
│ │
│ ├──► nexus_think.py (consciousness loop)
│ │ ├── perception_adapter.py (parse events)
│ │ ├── symbolic-engine.js (reasoning)
│ │ ├── llama_provider.py (inference)
│ │ ├── trajectory_logger.py (action log)
│ │ └── experience_store.py (persistence)
│ │
│ └──► evennia_ws_bridge.py
│ └──► Evennia MUD (telnet :4000)
├── Three.js Scene ──► nexus/components/*
│ ├── memory-particles.js (memory viz)
│ ├── portal-status-wall.html (portals)
│ ├── fleet-health-dashboard.html
│ └── session-rooms.js (spatial rooms)
└── Playground ──► playground/playground.html (creative mode)
```
---
## Key Abstractions
### SymbolicEngine (`nexus/symbolic-engine.js`)
Bitmask-based symbolic reasoning engine. Facts are stored as boolean flags, rules fire when patterns match. Used for world state reasoning without LLM overhead.
### NexusMind (`nexus/nexus_think.py`)
The consciousness loop. Receives perceptions, invokes reasoning, produces actions. The bridge between the 3D world and the AI agent.
### PerceptionBuffer (`nexus/perception_adapter.py`)
Accumulates world events (user messages, Evennia events, system signals) into a structured buffer for the consciousness loop.
### MemPalace (`nexus/mempalace/`, `mempalace/`)
Spatial memory system. Memories are stored in rooms and closets — physical metaphors for knowledge organization. Supports fleet-wide shared memory wings.
### Mnemosyne (`nexus/mnemosyne/`)
Holographic archive. Ingests documents, extracts meaning, builds a graph of linked concepts. The long-term memory layer.
### Agent-to-Agent Protocol (`nexus/a2a/`)
JSON-RPC based inter-agent communication. Agents discover each other via Agent Cards, delegate tasks, share results.
### Multi-User Bridge (`multi_user_bridge.py`)
121K-line Evennia MUD bridge. Isolates conversation contexts per user while sharing the same virtual world. Each user gets their own AIAgent instance.
---
## API Surface
### WebSocket API (server.py :8765)
```
ws://localhost:8765
send: {"type": "perception", "data": {...}}
recv: {"type": "action", "data": {...}}
recv: {"type": "heartbeat", "data": {...}}
```
### A2A JSON-RPC (nexus/a2a/server.py)
```
POST /a2a/v1
{"jsonrpc": "2.0", "method": "SendMessage", "params": {...}}
GET /.well-known/agent-card.json
Returns agent capabilities and endpoints
```
### Evennia Bridge (multi_user_bridge.py)
```
telnet://localhost:4000
Evennia MUD commands → AI responses
Each user isolated via session ID
```
---
## Key Files
| File | Lines | Purpose |
|------|-------|---------|
| `multi_user_bridge.py` | 121K | Evennia MUD bridge (largest file) |
| `index.html` | 21K | Main 3D world |
| `nexus/symbolic-engine.js` | 12K | Symbolic reasoning |
| `nexus/evennia_ws_bridge.py` | 14K | Evennia ↔ WebSocket |
| `nexus/a2a/server.py` | 12K | A2A server |
| `agent/memory.py` | 12K | Cross-session memory |
| `server.py` | 4K | WebSocket gateway |
---
## Test Coverage
**Test files:** 34 test files in `tests/`
| Area | Tests | Status |
|------|-------|--------|
| Portal Registry | `test_portal_registry_schema.py` | ✅ |
| MemPalace | `test_mempalace_*.py` (4 files) | ✅ |
| Nexus Watchdog | `test_nexus_watchdog.py` | ✅ |
| A2A | `test_a2a.py` | ✅ |
| Fleet Audit | `test_fleet_audit.py` | ✅ |
| Provenance | `test_provenance.py` | ✅ |
| Boot | `boot.test.js` | ✅ |
### Coverage Gaps
- **No tests for `multi_user_bridge.py`** (121K lines, zero test coverage)
- **No tests for `server.py` WebSocket gateway**
- **No tests for `nexus/symbolic-engine.js`** (only `symbolic-engine.test.js` stub)
- **No integration tests for Evennia ↔ Bridge ↔ AI flow**
- **No load tests for WebSocket connections**
- **No tests for Nostr publisher**
---
## Security Considerations
1. **WebSocket gateway** runs on `0.0.0.0:8765` — accessible from network. Needs auth or firewall.
2. **No authentication** on WebSocket or A2A endpoints in current code.
3. **Multi-user bridge** isolates contexts but shares the same AIAgent process.
4. **Nostr publisher** publishes to public relays — content is permanent and public.
5. **Fleet scripts** in `bin/` have broad filesystem access.
6. **Systemd services** (`systemd/llama-server.service`) run as root.
---
## Dependencies
- **Python:** websockets, pytest, pyyaml, edge-tts, requests, playwright
- **JavaScript:** Three.js (CDN), Monaco Editor (CDN)
- **External:** Evennia MUD, llama.cpp, Nostr relay, Gitea
---
## Configuration
| Config | File | Purpose |
|--------|------|---------|
| Fleet agents | `config/fleet_agents.json` | Agent registry for A2A |
| MemPalace | `nexus/mempalace/config.py` | Memory paths and settings |
| DeepDive | `config/deepdive_sources.yaml` | Research sources |
| MCP | `mcp_config.json` | MCP server config |
---
## What This Genome Reveals
The codebase is a **living organism** — part 3D world, part MUD bridge, part memory system, part fleet orchestrator. The `multi_user_bridge.py` alone is 121K lines — larger than most entire projects.
**Critical findings:**
1. The 121K-line bridge has zero test coverage
2. WebSocket gateway exposes on 0.0.0.0 without auth
3. No load testing infrastructure exists
4. Symbolic engine test is a stub
5. Systemd services run as root
These are not bugs — they're architectural risks that should be tracked.
---
*Generated by Codebase Genome Pipeline — Issue #672*

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# Issue #1413 Verification
Status: already implemented on `main`
## Acceptance criteria check
1.`deploy.sh` comment for `nexus-main` uses port `8765`
- Evidence: `deploy.sh:3`
2.`deploy.sh` comment for `nexus-staging` uses port `8766`
- Evidence: `deploy.sh:4`
3.`docker-compose.yml` confirms those bindings
- Evidence: `docker-compose.yml:9` is `"8765:8765"`
- Evidence: `docker-compose.yml:15` is `"8766:8765"`
## Why no code fix was needed
The issue describes stale comments (`4200` / `4201`), but the current `main` branch already contains the corrected comments:
```text
# Usage: ./deploy.sh — rebuild and restart nexus-main (port 8765)
# ./deploy.sh staging — rebuild and restart nexus-staging (port 8766)
```
## Value added in this PR
- adds `tests/test_deploy_script_ports.py` so future drift between `deploy.sh` comments and `docker-compose.yml` is caught automatically
- documents the verification outcome here so the issue can be closed without reimplementing an already-merged fix
## Recommendation
Close issue #1413 as already implemented.

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from pathlib import Path
NEXUS_ROOT = Path(__file__).resolve().parent.parent
def test_deploy_sh_header_comments_match_live_ports():
deploy_sh = (NEXUS_ROOT / "deploy.sh").read_text()
assert "(port 8765)" in deploy_sh, "deploy.sh should document nexus-main on port 8765"
assert "(port 8766)" in deploy_sh, "deploy.sh should document nexus-staging on port 8766"
assert "4200" not in deploy_sh, "stale 4200 comment should not remain in deploy.sh"
assert "4201" not in deploy_sh, "stale 4201 comment should not remain in deploy.sh"
def test_deploy_sh_comments_match_docker_compose_bindings():
deploy_sh = (NEXUS_ROOT / "deploy.sh").read_text().splitlines()
compose = (NEXUS_ROOT / "docker-compose.yml").read_text()
main_comment = next(line for line in deploy_sh if "nexus-main" in line and "port" in line)
staging_comment = next(line for line in deploy_sh if "nexus-staging" in line and "port" in line)
assert '"8765:8765"' in compose, "docker-compose should expose nexus-main on 8765"
assert '"8766:8765"' in compose, "docker-compose should expose nexus-staging via host port 8766"
assert "8765" in main_comment, "nexus-main deploy comment should cite 8765"
assert "8766" in staging_comment, "nexus-staging deploy comment should cite 8766"