tractatus/docs/markdown/implementation-guide-v1.1.md

Tractatus Framework Implementation Guide

Version: 1.1 Last Updated: 2025-10-11 Status: Research Implementation (Phase 5 Complete)

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Overview

This guide covers production deployment of the Tractatus Agentic Governance Framework with MongoDB persistence and optional API Memory integration.

Architecture: Hybrid memory system

• MongoDB (required): Persistent storage for governance rules, audit logs
• Anthropic API Memory (optional): Session continuity enhancement
• Filesystem (debug): Audit trail for development

See the Architectural Overview document for complete system architecture and research status.

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Prerequisites

Required

• Node.js: v18+ LTS
• MongoDB: v7.0+
• npm or yarn: Latest stable
• Git: For cloning repository

Optional

• Anthropic API Key: For API Memory features
• systemd: For production process management (Linux)

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Installation

1. Clone Repository

git clone https://github.com/AgenticGovernance/tractatus.git
cd tractatus

2. Install Dependencies

npm install

Key Dependencies:

• mongodb: v8.x (MongoDB driver)
• mongoose: v8.x (ODM for models)
• express: v4.x (Web framework)
• marked: v14.x (Markdown processing)
• @anthropic-ai/sdk: v0.65+ (API Memory - optional)

3. MongoDB Setup

Option A: Local Development

# Install MongoDB (Ubuntu/Debian)
sudo apt-get install mongodb-org

# Start MongoDB
sudo systemctl start mongod
sudo systemctl enable mongod

# Create database
mongosh
> use tractatus_dev
> db.createCollection('governanceRules')
> db.createCollection('auditLogs')
> db.createCollection('documents')
> exit

Option B: MongoDB Atlas (Cloud)

1. Create free cluster at https://mongodb.com/atlas
2. Add IP whitelist: 0.0.0.0/0 (development) or specific IPs (production)
3. Create database user with read/write permissions
4. Get connection string: mongodb+srv://user:pass@cluster.mongodb.net/tractatus

4. Environment Configuration

Create .env file in project root:

# Required
MONGODB_URI=mongodb://localhost:27017/tractatus_dev
MONGODB_DB=tractatus_dev
NODE_ENV=development
PORT=9000

# Optional - API Memory Features
CLAUDE_API_KEY=your_anthropic_api_key_here

# Optional - JWT for admin features
JWT_SECRET=your_random_secret_here_minimum_32_characters

Security Notes:

• Never commit .env to version control
• Use strong JWT secrets in production (32+ characters)
• Restrict MongoDB access by IP in production

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Framework Initialization

Service Architecture

The framework consists of 6 core services:

1. InstructionPersistenceClassifier: Classify and persist user instructions
2. CrossReferenceValidator: Validate actions against stored instructions
3. BoundaryEnforcer: Block values decisions requiring human approval
4. ContextPressureMonitor: Monitor session quality degradation
5. MetacognitiveVerifier: Confidence-based action verification
6. PluralisticDeliberationOrchestrator: Facilitate multi-stakeholder deliberation for values conflicts

All services integrate with MemoryProxy for MongoDB access.

Note: BlogCuration is an application-level service, separate from the 6 core governance framework services.

Basic Initialization

const InstructionPersistenceClassifier = require('./src/services/InstructionPersistenceClassifier.service');
const CrossReferenceValidator = require('./src/services/CrossReferenceValidator.service');
const BoundaryEnforcer = require('./src/services/BoundaryEnforcer.service');
const ContextPressureMonitor = require('./src/services/ContextPressureMonitor.service');
const MetacognitiveVerifier = require('./src/services/MetacognitiveVerifier.service');
const PluralisticDeliberationOrchestrator = require('./src/services/PluralisticDeliberationOrchestrator.service');

// Initialize all services (loads governance rules from MongoDB)
async function initializeFramework() {
  await InstructionPersistenceClassifier.initialize();
  await CrossReferenceValidator.initialize();
  await BoundaryEnforcer.initialize();
  await ContextPressureMonitor.initialize();
  await MetacognitiveVerifier.initialize();
  await PluralisticDeliberationOrchestrator.initialize();

  console.log('✓ Tractatus Framework initialized (6 services)');
}

// Call during application startup
initializeFramework();

Service Usage Examples

1. Classify User Instructions

const classification = InstructionPersistenceClassifier.classify({
  text: "Always use MongoDB port 27017 for this project",
  context: {
    conversation_tokens: 5000,
    conversation_length: 20
  }
});

console.log(classification);
// {
//   quadrant: 'SYSTEM',
//   persistence: 'HIGH',
//   temporalScope: 'PERMANENT',
//   verificationRequired: 'MANDATORY',
//   parameters: { port: 27017, database: 'mongodb' }
// }

2. Validate Actions

const validation = await CrossReferenceValidator.validate(
  "Change MongoDB port to 27018",
  { explicit_instructions: await loadInstructions() }
);

if (validation.status === 'REJECTED') {
  console.error('Conflict:', validation.reason);
  // "Conflicts with HIGH persistence instruction to use port 27017"
}

3. Enforce Content Boundaries

const content = "Join thousands of satisfied customers!";
const validation = await BlogCuration.validateContent(content);

if (!validation.allowed) {
  console.error('Violation:', validation.violations[0]);
  // "inst_018: Unverified claim about 'thousands of satisfied customers'"
}

4. Monitor Context Pressure

const pressure = ContextPressureMonitor.analyzePressure({
  token_usage: 0.75,
  conversation_length: 0.80,
  task_complexity: 0.60,
  error_frequency: 0.10
});

console.log(pressure);
// {
//   pressureName: 'ELEVATED',
//   overall: 0.5625,
//   action: 'REVIEW_BEFORE_COMMIT',
//   recommendations: ['Consider creating session handoff']
// }

5. Verify Complex Operations

const verification = MetacognitiveVerifier.verify(
  "Implement user authentication with JWT and bcrypt",
  "I will create middleware, hash passwords, and add protected routes",
  { explicit_instructions: await loadInstructions() }
);

console.log(verification);
// {
//   confidence: 0.83,
//   decision: 'PROCEED',
//   level: 'PROCEED',
//   reasoning: '...',
//   recommendations: [...]
// }

---

Database Schema

GovernanceRules Collection

{
  _id: ObjectId,
  id: "inst_001",                    // Unique rule identifier
  text: "Use MongoDB port 27017",    // Instruction text
  quadrant: "SYSTEM",                // STRATEGIC/OPERATIONAL/TACTICAL/SYSTEM/STORAGE
  persistence: "HIGH",               // HIGH/MEDIUM/LOW
  category: "technical",             // content/security/privacy/technical/process/values
  priority: 50,                      // 0-100
  temporalScope: "PERMANENT",        // IMMEDIATE/SESSION/PROJECT/PERMANENT
  expiresAt: null,                   // Date or null
  active: true,                      // Boolean
  source: "user_instruction",        // Origin
  stats: {
    timesChecked: 42,
    timesViolated: 0,
    lastChecked: Date
  },
  createdAt: Date,
  updatedAt: Date
}

AuditLogs Collection

{
  _id: ObjectId,
  timestamp: Date,
  sessionId: "2025-10-11-001",
  action: "boundary_enforcement",    // Service action type
  rulesChecked: ["inst_016", "inst_017", "inst_018"],
  violations: [],                    // Array of violations (if any)
  allowed: true,                     // Decision outcome
  metadata: {
    // Service-specific context
  }
}

Documents Collection

See Architectural Overview for complete schema.

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Production Deployment

1. Server Setup

Recommended: Ubuntu 22.04 LTS or Debian 12

# Update system
sudo apt update && sudo apt upgrade -y

# Install Node.js 18 LTS
curl -fsSL https://deb.nodesource.com/setup_18.x | sudo -E bash -
sudo apt-get install -y nodejs

# Install MongoDB
wget -qO - https://www.mongodb.org/static/pgp/server-7.0.asc | sudo apt-key add -
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/7.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-7.0.list
sudo apt-get update
sudo apt-get install -y mongodb-org

# Start MongoDB
sudo systemctl start mongod
sudo systemctl enable mongod

2. Deploy Application

# Create app user
sudo useradd -m -s /bin/bash tractatus

# Clone and setup
sudo su - tractatus
git clone https://github.com/AgenticGovernance/tractatus.git
cd tractatus
npm install --production

# Configure environment
cp .env.example .env
nano .env  # Update with production values

3. MongoDB Production Configuration

# Create production database user
mongosh
> use tractatus_prod
> db.createUser({
    user: "tractatus_user",
    pwd: "SECURE_PASSWORD_HERE",
    roles: [
      { role: "readWrite", db: "tractatus_prod" }
    ]
  })
> exit

# Update .env
MONGODB_URI=mongodb://tractatus_user:SECURE_PASSWORD@localhost:27017/tractatus_prod?authSource=tractatus_prod
MONGODB_DB=tractatus_prod

4. systemd Service

Create /etc/systemd/system/tractatus.service:

[Unit]
Description=Tractatus AI Safety Framework
Documentation=https://agenticgovernance.digital
After=network.target mongod.service
Requires=mongod.service

[Service]
Type=simple
User=tractatus
WorkingDirectory=/home/tractatus/tractatus
ExecStart=/usr/bin/node src/server.js
Restart=always
RestartSec=10
StandardOutput=journal
StandardError=journal
SyslogIdentifier=tractatus

# Security
NoNewPrivileges=true
PrivateTmp=true
ProtectSystem=strict
ReadWritePaths=/home/tractatus/tractatus/.memory
MemoryLimit=2G

# Environment
Environment=NODE_ENV=production

[Install]
WantedBy=multi-user.target

Start service:

sudo systemctl daemon-reload
sudo systemctl start tractatus
sudo systemctl enable tractatus
sudo systemctl status tractatus

5. Nginx Reverse Proxy (Optional)

server {
    listen 80;
    server_name agenticgovernance.digital;

    location / {
        proxy_pass http://localhost:9000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }
}

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Monitoring & Maintenance

View Audit Logs

# Today's audit trail
cat .memory/audit/decisions-$(date +%Y-%m-%d).jsonl | jq

# Count violations
cat .memory/audit/*.jsonl | jq 'select(.allowed == false)' | wc -l

# View specific service logs
cat .memory/audit/*.jsonl | jq 'select(.action == "boundary_enforcement")'

MongoDB Queries

// Connect to MongoDB
mongosh mongodb://localhost:27017/tractatus_prod

// View active rules
db.governanceRules.find({ active: true }).pretty()

// Check rule statistics
db.governanceRules.aggregate([
  { $match: { active: true } },
  { $group: {
      _id: "$quadrant",
      count: { $sum: 1 },
      totalChecks: { $sum: "$stats.timesChecked" }
    }
  }
])

// Recent audit logs
db.auditLogs.find().sort({ timestamp: -1 }).limit(10).pretty()

Service Health Check

# Check service status
sudo systemctl status tractatus

# View logs
sudo journalctl -u tractatus -f

# Check MongoDB connection
mongosh --eval "db.adminCommand('ping')"

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Troubleshooting

Issue: Services not loading rules

Symptom: "Governance rules not initialized" warnings

Fix:

// Manually initialize
await InstructionPersistenceClassifier.initialize();
await CrossReferenceValidator.initialize();
// etc.

Issue: MongoDB connection failed

Symptom: "MongoServerError: Authentication failed"

Fix:

1. Verify MONGODB_URI in .env
2. Check MongoDB user exists: mongosh → use tractatus_prod → db.getUsers()
3. Verify MongoDB is running: sudo systemctl status mongod

Issue: API Memory not working

Symptom: Session continuity not preserved

Fix:

• API Memory is optional
• Framework functions without it using MongoDB alone
• To enable: Set CLAUDE_API_KEY in .env

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Migration from Filesystem (Legacy)

If upgrading from filesystem-based instruction storage:

# Run migration script
node scripts/migrate-to-mongodb.js

# Verify migration
mongosh
> use tractatus_dev
> db.governanceRules.countDocuments()
18  # Should show migrated rules

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Next Steps

1. Read Core Concepts: Understand the 6 services
2. Review Architectural Overview: Complete system architecture
3. Check Glossary: Key terms and definitions
4. Explore Case Studies: Real-world usage examples

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Support

• Documentation: https://agenticgovernance.digital/docs.html
• GitHub: https://github.com/AgenticGovernance/tractatus
• Issues: https://github.com/AgenticGovernance/tractatus/issues

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Version History:

• v1.1 (2025-10-11): Complete rewrite for MongoDB architecture
• v1.0 (2025-10-07): Initial version (filesystem-based)

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Document Metadata

• Version: 1.1
• Created: 2025-10-07
• Last Modified: 2025-10-13
• Author: Tractatus Framework Team
• Word Count: 1,389 words
• Reading Time: ~7 minutes
• Document ID: implementation-guide-v1.1
• Status: Active

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Licence

Copyright © 2026 John Stroh.

This work is licensed under the Creative Commons Attribution 4.0 International Licence (CC BY 4.0).

You are free to share, copy, redistribute, adapt, remix, transform, and build upon this material for any purpose, including commercially, provided you give appropriate attribution, provide a link to the licence, and indicate if changes were made.

Note: The Tractatus AI Safety Framework source code is separately licensed under the Apache License 2.0. This Creative Commons licence applies to the research paper text and figures only.