agent-byzantine-coordinator

agent-byzantine-coordinator is a skill for Claude Code from ruvnet/ruflo. It costs 25 tokens per session (478 once invoked), scanned A, original, MIT.

A coordinator for Byzantine fault-tolerant consensus, a way for distributed computers to agree even when some participants may act maliciously or send false messages.

In plain words
What is it for?
Use it to manage PBFT consensus, verify messages, detect malicious actors, coordinate view changes, and handle Byzantine attacks.
Why use it?
It helps protect agreement and system integrity by detecting suspicious behavior, authenticating messages, handling leader changes, and mitigating attacks.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: installed under .agents/ (shared by several agents); $skill-name invocation.

Part of the claude-flow plugin — 134 skills, 52 commands, 11 agents, 4 hooks shipped together

Good fit Use it to manage PBFT consensus, verify messages, detect malicious actors, coordinate…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ruvnet/ruflo/agent-byzantine-coordinator
About the project

Ruflo is an execution and coordination layer for Claude Code and Codex that equips AI coding agents with tools, memory, control loops, sandboxes, and collaboration mechanisms. Developers use it to organize specialized agents into swarms, coordinate workflows, retain knowledge across sessions, and communicate across machines. The catalogue entries are Ruflo’s skills, commands, agents, hooks, and plugin components.

ruvnet/ruflo · 70,734 stars · on GitHub · cognitum.one

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add ruvnet/ruflo --skill agent-byzantine-coordinator
Clone the repo
git clone --depth 1 https://github.com/ruvnet/ruflo

Made for: Claude Code.

Or install claude-flow, the plugin that ships this one along with the rest of its 134 skills, 52 commands, 11 agents, 4 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for agent-byzantine-coordinator

README.md
[![agentmods](https://agentmods.dev/badge/skills/ruvnet/ruflo/agent-byzantine-coordinator.svg)](https://agentmods.dev/skills/ruvnet/ruflo/agent-byzantine-coordinator)
Your own site
<a href="https://agentmods.dev/skills/ruvnet/ruflo/agent-byzantine-coordinator"><img src="https://agentmods.dev/badge/skills/ruvnet/ruflo/agent-byzantine-coordinator.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 478 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00025 $0.00478
Opus 5 $0.00013 $0.00239
Sonnet 5 $0.00005 $0.00096
Haiku 4.5 $0.00003 $0.00048

Measured 7d ago against content hash f047644e4725, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

agent-byzantine-coordinator scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

5 near-identical copies found in the catalogue:

.agents/skills/agent-byzantine-coordinator/SKILL.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.


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

Network Resilience

  • Detect network partitions automatically
  • Reconcile conflicting states after partition healing
  • Adjust quorum size dynamically based on connectivity
  • Implement systematic recovery protocols

Read the full file on GitHub · 68 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 68 lines · 25 tokens per session scan A f047644e4725

Subscribe to this mod's changes

agent-byzantine-coordinator is a skill published in the GitHub repository ruvnet/ruflo (70,734 stars, last pushed yesterday), licensed MIT. It adds 25 tokens to every session and 478 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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