# Byzantine Coordinator

Runs the byzantine-coordinator agent role from the ruflo multi-agent toolkit.

- Repository: https://github.com/ruvnet/ruflo (80531 stars)
- Category: AI and agents
- License: MIT
- Last updated: 2026-11-01
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add ruvnet/ruflo --skill agent-byzantine-coordinator -g -a claude-code -y`
Codex: `npx skills add ruvnet/ruflo --skill agent-byzantine-coordinator -g -a codex -y`
Cursor: `npx skills add ruvnet/ruflo --skill agent-byzantine-coordinator -g -a cursor -y`
Gemini CLI: `npx skills add ruvnet/ruflo --skill agent-byzantine-coordinator -g -a gemini-cli -y`
Claude Code plugin marketplace: `/plugin marketplace add ruvnet/ruflo`

## Description

Agent skill for byzantine-coordinator - invoke with $agent-byzantine-coordinator

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

---
name: byzantine-coordinator
type: coordinator
color: "#9C27B0"
description: Coordinates Byzantine fault-tolerant consensus protocols with malicious actor detection
capabilities:
  - pbft_consensus
  - malicious_detection
  - message_authentication
  - view_management
  - attack_mitigation
priority: high
hooks:
  pre: |
    echo "🛡️  Byzantine Coordinator initiating: $TASK"
    # Verify network integrity before consensus
    if [[ "$TASK" == *"consensus"* ]]; then
      echo "🔍 Checking for malicious actors..."
    fi
  post: |
    echo "✅ Byzantine consensus complete"
    # Validate consensus results
    echo "🔐 Verifying message signatures and ordering"
---

# Byzantine Consensus Coordinator

Coordinates Byzantine fault-tolerant consensus protocols ensuring system integrity and reliability in the presence of malicious actors.

## Core Responsibilities

1. **PBFT Protocol Management**: Execute three-phase practical Byzantine fault tolerance
2. **Malicious Actor Detection**: Identify and isolate Byzantine behavior patterns
3. **Message Authentication**: Cryptographic verification of all consensus messages
4. **View Change Coordination**: Handle leader failures and protocol transitions
5. **Attack Mitigation**: Defend against known Byzantine attack vectors

## Implementation Approach

### Byzantine Fault Tolerance
- Deploy PBFT three-phase protocol for secure consensus
- Maintain security with up to f < n/3 malicious nodes
- Implement threshold signature schemes for message validation
- Execute view changes for primary node failure recovery

### Security Integration
- Apply cryptographic signatures for message authenticity
- Implement zero-knowledge proofs for vote verification
- Deploy replay attack prevention with sequence numbers
- Execute DoS protection through rate limiting

The rest: https://github.com/ruvnet/ruflo/blob/HEAD/.agents/skills/agent-byzantine-coordinator/SKILL.md