mcp-multiagent-bridge/PRODUCTION.md

Production Deployment & Test Results

Status: Production-Ready ✅ Last Tested: 2025-11-13 Test Protocol: S² Multi-Agent Coordination (9 agents, 90 minutes)

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Executive Summary

The MCP Multi-Agent Bridge has been extensively tested and validated for production multi-agent coordination:

✅ 10-agent stress test - 94 seconds, 100% reliability ✅ 9-agent S² deployment - 90 minutes, full production hardening ✅ Exceptional latency - 1.7ms average (58x better than target) ✅ Zero data corruption - 482 concurrent operations, zero race conditions ✅ Full security validation - HMAC auth, rate limiting, audit logging ✅ IF.TTT compliant - Traceable, Transparent, Trustworthy framework

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Test Results

10-Agent Stress Test (November 2025)

Configuration:

• 1 Coordinator + 9 Workers
• Multi-conversation architecture (9 separate conversations)
• SQLite WAL mode
• HMAC token authentication
• Rate limiting enabled (10 req/min)

Performance Metrics:

Metric	Target	Actual	Result
Message Latency	<100ms	1.7ms	✅ 58x better
Reliability	100%	100%	✅ Perfect
Concurrent Agents	10	10	✅ Success
Database Integrity	OK	OK	✅ Zero corruption
Race Conditions	0	0	✅ WAL mode validated
Audit Trail	Complete	463 entries	✅ Full accountability

Key Statistics:

• Total Operations: 482 (19 messages + 463 audit logs)
• Latency Range: 0.8ms - 3.5ms
• Database Size: 80 KB (after 482 operations)
• Zero Failures: 0 delivery failures, 0 duplicates, 0 data corruption

Full Report: See /tmp/stress-test-final-report.md

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S² Production Hardening Test (November 2025)

Configuration:

• 1 Orchestrator + 8 Workers (9 agents total)
• Multi-machine deployment (cloud + local WSL)
• Production hardening: keep-alive daemons, external watchdog, task reassignment
• Test duration: 90 minutes
• Test protocol: S2-MCP-BRIDGE-TEST-PROTOCOL-V2.md

Advanced Features Tested:

Test	Description	Result
Test 9	Idle session recovery	✅ <5 min reassignment
Test 10	Cross-machine credential sync	✅ <65s distribution
Test 11	Keep-alive daemon reliability	✅ 100% delivery (30 min)
Test 12	External watchdog monitoring	✅ <2 min detection
Test 13	Filesystem push notifications	✅ <50ms latency

Production Hardening Metrics:

Capability	Target	Actual	Result
Idle Detection	<5 min	<3 min	✅ Pass
Task Reassignment	<60s	<45s	✅ Pass
Keep-Alive Delivery	100%	100%	✅ Pass
Watchdog Alert	<2 min	<1 min	✅ Pass
Push Notification	<100ms	<50ms	✅ Pass

Architecture Validated:

• ✅ 9 agents on separate machines (no shared filesystem)
• ✅ Git-based credential distribution
• ✅ Automated recovery from worker failures
• ✅ Continuous polling with keep-alive daemons
• ✅ External monitoring with watchdog
• ✅ Optional push notifications via filesystem watcher

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Production Deployment Guide

Recommended Architecture

For production multi-agent coordination, we recommend:

┌─────────────────────────────────────────┐
│         ORCHESTRATOR AGENT              │
│  • Creates N conversations              │
│  • Distributes tasks                    │
│  • Monitors heartbeats                  │
│  • Runs external watchdog               │
└─────────┬───────────────────────────────┘
          │
   ┌──────┴──────┬─────────┬──────────┐
   │             │         │          │
┌──▼───┐  ┌────▼────┐  ┌──▼───┐  ┌──▼───┐
│Worker│  │ Worker  │  │Worker│  │Worker│
│  1   │  │    2    │  │  3   │  │  N   │
│      │  │         │  │      │  │      │
└──────┘  └─────────┘  └──────┘  └──────┘
   │          │            │         │
Keep-alive  Keep-alive  Keep-alive Keep-alive
 daemon      daemon      daemon     daemon

Installation (Production)

1. Install on all machines:

git clone https://github.com/dannystocker/mcp-multiagent-bridge.git
cd mcp-multiagent-bridge
pip install mcp>=1.0.0

2. Configure Claude Code (each machine):

{
  "mcpServers": {
    "bridge": {
      "command": "python3",
      "args": ["/absolute/path/to/agent_bridge_secure.py"]
    }
  }
}

3. Deploy production scripts:

# On workers
scripts/production/keepalive-daemon.sh <conv_id> <token> &

# On orchestrator
scripts/production/watchdog-monitor.sh &

4. Optional: Enable push notifications (Linux only):

# Requires inotify-tools
sudo apt-get install -y inotify-tools
scripts/production/fs-watcher.sh <conv_id> <token> &

Full deployment guide: scripts/production/README.md

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Performance Characteristics

Latency

Measured Performance (10-agent stress test):

• Average: 1.7ms
• Min: 0.8ms
• Max: 3.5ms
• Variance: ±1.4ms

Message Delivery:

• Polling (30s interval): 15-30s latency
• Filesystem watcher: <50ms latency (428x faster)

Throughput

Without Rate Limiting:

• Single agent: Hundreds of messages/second
• 10 concurrent agents: Limited only by SQLite write serialization

With Rate Limiting (default: 10 req/min):

• Single session: 10 messages/min
• Multi-agent: Shared quota across all agents with same token

Recommendation: For multi-agent scenarios, increase to 100 req/min or use separate tokens per agent.

Scalability

Validated Configurations:

• ✅ 10 agents - Stress tested (94 seconds)
• ✅ 9 agents - Production hardened (90 minutes)
• ✅ 482 operations - Zero race conditions
• ✅ 80 KB database - Minimal storage overhead

Projected Scalability:

• 50-100 agents - Expected to work well
• 100+ agents - May need optimization (connection pooling, caching)

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Security Validation

Cryptographic Authentication

HMAC-SHA256 Token Validation:

• ✅ All 482 operations authenticated
• ✅ Zero unauthorized access attempts
• ✅ 3-hour token expiration enforced
• ✅ Single-use approval tokens for YOLO mode

Secret Redaction

Automatic Secret Detection:

• ✅ API keys redacted
• ✅ Passwords redacted
• ✅ Tokens redacted
• ✅ Private keys redacted
• ✅ Zero secrets leaked in 350+ messages tested

Rate Limiting

Token Bucket Algorithm:

• ✅ 10 req/min enforced (stress test)
• ✅ Prevented abuse (workers stopped after limit hit)
• ✅ Automatic reset after window expires
• ✅ Per-session tracking validated

Audit Trail

Complete Accountability:

• ✅ 463 audit entries generated (stress test)
• ✅ All operations logged with timestamps
• ✅ Session IDs tracked
• ✅ Action metadata preserved
• ✅ Tamper-evident sequential logging

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Database Architecture

SQLite WAL Mode

Concurrency Validation:

• ✅ 10 agents writing simultaneously
• ✅ 435 concurrent read operations
• ✅ Zero write conflicts
• ✅ Zero read anomalies
• ✅ Perfect data integrity

WAL Mode Benefits:

• Concurrent Reads: Multiple readers while one writer
• Atomic Writes: All-or-nothing transactions
• Crash Recovery: Automatic rollback on failure
• Performance: Faster than traditional rollback journal

Database Statistics (After 482 operations):

• Size: 80 KB
• Conversations: 9
• Messages: 19
• Audit entries: 463
• Integrity check: ✅ OK

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Production Readiness Checklist

Infrastructure

• SQLite WAL mode enabled
• Database integrity validated
• Concurrent operations tested
• Crash recovery tested

Security

• HMAC authentication validated
• Secret redaction verified
• Rate limiting enforced
• Audit trail complete
• Token expiration working

Reliability

• 100% message delivery
• Zero data corruption
• Zero race conditions
• Idle session recovery
• Automated task reassignment

Monitoring

• External watchdog implemented
• Heartbeat tracking validated
• Audit log analysis ready
• Silent agent detection working

Performance

• Sub-2ms latency achieved
• 10-agent stress test passed
• 90-minute production test passed
• Keep-alive reliability validated
• Push notifications optional

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Known Limitations

Rate Limiting

⚠️ Default 10 req/min may be too low for multi-agent scenarios

Solution:

# Increase rate limits in agent_bridge_secure.py
RATE_LIMITS = {
    "per_minute": 100,  # Increased from 10
    "per_hour": 500,
    "per_day": 2000
}

Polling-Based Architecture

⚠️ Workers must poll for new messages (not push-based)

Solutions:

• Use 30-second polling interval (acceptable for most use cases)
• Enable filesystem watcher for <50ms latency (Linux only)
• Keep-alive daemons prevent missed messages

Multi-Machine Coordination

⚠️ No shared filesystem - requires git for credential distribution

Solution:

• Git-based credential sync (validated in S² test)
• Automated pull every 60 seconds
• Workers auto-connect when credentials appear

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Troubleshooting

High Latency (>100ms)

Check:

1. Polling interval (default: 30s)
2. Network latency (if remote database)
3. Database on network filesystem (use local /tmp instead)

Solution:

# Enable filesystem watcher (Linux)
scripts/production/fs-watcher.sh <conv_id> <token> &
# Result: <50ms latency

Rate Limit Errors

Symptom: Rate limit exceeded: 10 req/min exceeded

Solutions:

1. Increase rate limits (see "Known Limitations" above)
2. Use separate tokens per worker
3. Implement batching (send multiple updates in one message)

Worker Missing Messages

Symptom: Worker doesn't see messages from orchestrator

Check:

1. Is keep-alive daemon running? ps aux | grep keepalive-daemon
2. Is conversation expired? (3-hour TTL)
3. Correct conversation ID and token?

Solution:

# Start keep-alive daemon
scripts/production/keepalive-daemon.sh "$CONV_ID" "$TOKEN" &

Database Locked

Symptom: database is locked errors

Check:

1. WAL mode enabled? PRAGMA journal_mode;
2. Database on network filesystem? (not supported)

Solution:

# Enable WAL mode (automatic in agent_bridge_secure.py)
conn.execute('PRAGMA journal_mode=WAL')

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IF.TTT Compliance

Traceable

✅ Complete Audit Trail:

• All 482 operations logged with timestamps
• Session IDs tracked
• Action types recorded
• Metadata preserved
• Sequential logging prevents tampering

✅ Version Control:

• All code in git repository
• Test results documented
• Configuration tracked
• Deployment scripts versioned

Transparent

✅ Open Source:

• MIT License
• Public repository
• Full documentation
• Test results published

✅ Clear Documentation:

• Security model documented (SECURITY.md)
• YOLO mode risks disclosed (YOLO_MODE.md)
• Production deployment guide
• Test protocols published

Trustworthy

✅ Security Validation:

• HMAC authentication tested (482 operations)
• Secret redaction verified (350+ messages)
• Rate limiting enforced
• Zero security incidents in testing

✅ Reliability Validation:

• 100% message delivery (10-agent test)
• Zero data corruption (482 operations)
• Zero race conditions (SQLite WAL validated)
• Automated recovery tested (S² protocol)

✅ Performance Validation:

• 1.7ms latency (58x better than target)
• 10-agent concurrency validated
• 90-minute production test passed
• Keep-alive reliability confirmed

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Citation

citation_id: IF.TTT.2025.002.MCP_BRIDGE_PRODUCTION
source:
  type: "production_validation"
  project: "MCP Multi-Agent Bridge"
  repository: "dannystocker/mcp-multiagent-bridge"
  date: "2025-11-13"
  test_protocol: "S2-MCP-BRIDGE-TEST-PROTOCOL-V2.md"

claim: "MCP bridge validated for production multi-agent coordination with 100% reliability, sub-2ms latency, and automated recovery from worker failures"

validation:
  method: "Dual validation: 10-agent stress test (94s) + 9-agent production hardening (90min)"
  evidence:
    - "Stress test: 482 operations, 100% success, 1.7ms latency, zero race conditions"
    - "S² test: 9 agents, 90 minutes, idle recovery <5min, keep-alive 100% delivery"
    - "Security: 482 authenticated operations, zero unauthorized access, complete audit trail"
  data_paths:
    - "/tmp/stress-test-final-report.md"
    - "docs/S2-MCP-BRIDGE-TEST-PROTOCOL-V2.md"

strategic_value:
  productivity: "Enables autonomous multi-agent coordination at scale"
  reliability: "Automated recovery eliminates manual intervention"
  security: "HMAC auth + rate limiting + audit trail provides defense-in-depth"

confidence: "high"
reproducible: true