bft-consensus-patternslisted

# Byzantine Fault Tolerant Consensus A swarm of 87 agents can tolerate up to 28 simultaneous compromised agents (f = ⌊(N-1)/3⌋) if decisions require 2f+1 votes. ## When to Use - Critical operations that no single agent should decide unilaterally (rule changes, deploys, key rotation) - Detecting when a minority of agents have been compromised or are producing incorrect output - Dual-verification of important task results (two agents must agree before result is accepted) - Enforcing quorum requirements before high-privilege Swarm Bus commands ## Do NOT use for - Routine read-only operations (overhead not worth it for non-critical tasks) - Single-agent systems or development environments ## BFT Voting via SwarmRouter ```js import { SwarmRouter } from 'core/bus/swarm-router.js'; const router = new SwarmRouter(); // Register voters ['auditor-1', 'auditor-2', 'auditor-3', 'orch-1', 'orch-2'].forEach(id => router.register(id, { role: 'auditor', trustScore: 90 }) ); // Propose a critical change async function proposeChange(proposerId, change) { const QUORUM = 3; const votes = await Promise.allSettled( [...router.agents.keys()] .filter(id => id !== proposerId) .slice(0, 5) .map(id => router.route({ from: proposerId, to: id, command: 'VOTE_REQUEST', payload: { change, fingerprint: router._fingerprint(change) } })) ); const yesVotes = votes.filter(v => v.status === 'fulfilled' && v.value.delivered).length; if (ye