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+# Claude Multi-Agent Quorum
+
+Three Claude agents deliberate in parallel and vote on whether to enforce a governance action. Enforcement only happens when 2/3 agents agree.
+
+## Pattern
+
+```
+Signal → [Safety Agent] ─┐
+       → [Audit Agent]  ─┼→ Vote tally → ENFORCE / DISMISS / WARN
+       → [Cost Agent]   ─┘
+         (parallel, ThreadPoolExecutor)
+```
+
+Each agent evaluates the signal from a different angle:
+- **Safety** — blast radius and exfiltration risk
+- **Audit** — CloudTrail evidence and policy violations
+- **Cost** — financial exposure (threshold-based)
+
+Agent failures count as `ABSTAIN` — one failure can never block a clear majority.
+
+## Run
+
+```bash
+pip install anthropic pydantic
+python claude_quorum_agent.py
+```
+
+`DEMO_MODE=true` by default — runs without an API key. Set `ANTHROPIC_API_KEY` and `DEMO_MODE=false` for live Claude agents.
+
+## Why this pattern matters
+
+Single-agent decisions are risky for high-stakes, irreversible actions. A quorum:
+- Prevents false positives — no single agent acts unilaterally
+- Provides explainability — three independent reasoning chains
+- Degrades safely — one failure cannot block a clear majority
+
+## Source
+
+Extracted from [ai-sentinel-ecosystem](https://github.com/TanishkaMarrott/ai-sentinel-ecosystem) — validated across 30 scenarios with 98.4% detection accuracy and zero false-positive quarantines.
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diff --git a/examples/python/claude-quorum-agent/claude_quorum_agent.py b/examples/python/claude-quorum-agent/claude_quorum_agent.py
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+"""
+Claude Multi-Agent Quorum — AWS Cost Governance Example
+
+Three Claude agents deliberate in parallel, each evaluating a suspicious AWS
+event from a different specialist angle. Enforcement only happens when at least
+2/3 agents agree (majority vote).
+
+Pattern:
+- Safety agent  — blast radius and exfiltration risk
+- Audit agent   — CloudTrail evidence verification
+- Cost agent    — financial exposure estimation
+- Orchestrator  — runs all three concurrently, tallies votes
+
+DEMO_MODE=true by default — runs without API calls for zero-cost testing.
+Set ANTHROPIC_API_KEY and DEMO_MODE=false to run with live Claude agents.
+"""
+
+import os
+import json
+from concurrent.futures import ThreadPoolExecutor, as_completed
+from enum import Enum
+from pydantic import BaseModel
+import anthropic
+
+DEMO_MODE = os.getenv("DEMO_MODE", "true").lower() == "true"
+MODEL = os.getenv("ANTHROPIC_MODEL", "claude-opus-4-7")
+
+
+# --- Schemas ---
+
+class Vote(str, Enum):
+    APPROVE = "APPROVE"   # enforce (quarantine / restrict)
+    REJECT = "REJECT"     # dismiss, no action
+    ABSTAIN = "ABSTAIN"   # agent failed or uncertain
+
+
+class AgentVerdict(BaseModel):
+    agent: str
+    vote: Vote
+    confidence: float   # 0.0–1.0
+    reasoning: str
+
+
+class QuorumResult(BaseModel):
+    signal: dict
+    verdicts: list[AgentVerdict]
+    decision: str   # ENFORCE | DISMISS | WARN
+    approve_count: int
+    reject_count: int
+
+
+# --- Demo verdicts (no API calls) ---
+
+DEMO_VERDICTS = {
+    "safety": AgentVerdict(
+        agent="safety",
+        vote=Vote.APPROVE,
+        confidence=0.92,
+        reasoning="NAT Gateway creation enables data exfiltration. Blast radius: HIGH.",
+    ),
+    "audit": AgentVerdict(
+        agent="audit",
+        vote=Vote.APPROVE,
+        confidence=0.88,
+        reasoning="CloudTrail shows ec2:CreateNatGateway at 02:14 UTC. No change request found.",
+    ),
+    "cost": AgentVerdict(
+        agent="cost",
+        vote=Vote.REJECT,
+        confidence=0.60,
+        reasoning="Estimated $45/month — below $50 threshold. Cost alone does not justify enforcement.",
+    ),
+}
+
+
+# --- Agent runners ---
+
+def run_agent(role: str, signal: dict, client: anthropic.Anthropic) -> AgentVerdict:
+    if DEMO_MODE:
+        return DEMO_VERDICTS[role]
+
+    prompts = {
+        "safety": (
+            "You are a cloud security safety agent. Evaluate this AWS event signal for "
+            "blast radius and data exfiltration risk. Reply with JSON: "
+            '{"vote":"APPROVE|REJECT|ABSTAIN","confidence":0.0-1.0,"reasoning":"..."}'
+        ),
+        "audit": (
+            "You are a cloud audit agent. Evaluate this AWS event for CloudTrail evidence "
+            "and policy violations. Reply with JSON: "
+            '{"vote":"APPROVE|REJECT|ABSTAIN","confidence":0.0-1.0,"reasoning":"..."}'
+        ),
+        "cost": (
+            "You are a cloud cost agent. Evaluate this AWS event for financial exposure. "
+            "APPROVE if estimated monthly cost exceeds $50. Reply with JSON: "
+            '{"vote":"APPROVE|REJECT|ABSTAIN","confidence":0.0-1.0,"reasoning":"..."}'
+        ),
+    }
+
+    try:
+        response = client.messages.create(
+            model=MODEL,
+            max_tokens=256,
+            messages=[{
+                "role": "user",
+                "content": f"{prompts[role]}\n\nSignal: {json.dumps(signal)}",
+            }],
+        )
+        raw = json.loads(response.content[0].text)
+        return AgentVerdict(agent=role, **raw)
+    except Exception as e:
+        return AgentVerdict(agent=role, vote=Vote.ABSTAIN, confidence=0.0, reasoning=str(e))
+
+
+# --- Quorum orchestrator ---
+
+def run_quorum(signal: dict) -> QuorumResult:
+    client = anthropic.Anthropic(api_key=os.getenv("ANTHROPIC_API_KEY", "demo"))
+    roles = ["safety", "audit", "cost"]
+
+    verdicts = []
+    with ThreadPoolExecutor(max_workers=3) as executor:
+        futures = {executor.submit(run_agent, role, signal, client): role for role in roles}
+        for future in as_completed(futures):
+            verdicts.append(future.result())
+
+    approve = sum(1 for v in verdicts if v.vote == Vote.APPROVE)
+    reject = sum(1 for v in verdicts if v.vote == Vote.REJECT)
+
+    if approve >= 2:
+        decision = "ENFORCE"
+    elif reject >= 2:
+        decision = "DISMISS"
+    else:
+        decision = "WARN"
+
+    return QuorumResult(
+        signal=signal,
+        verdicts=verdicts,
+        decision=decision,
+        approve_count=approve,
+        reject_count=reject,
+    )
+
+
+# --- Demo ---
+
+if __name__ == "__main__":
+    signal = {
+        "account_id": "123456789012",
+        "event": "ec2:CreateNatGateway",
+        "region": "us-east-1",
+        "timestamp": "2026-05-09T02:14:00Z",
+        "user": "lab-user-001",
+    }
+
+    print(f"Signal: {signal['event']} in {signal['account_id']}\n")
+    result = run_quorum(signal)
+
+    for v in result.verdicts:
+        print(f"  [{v.vote}] {v.agent} (confidence: {v.confidence:.0%}): {v.reasoning}")
+
+    print(f"\nDecision: {result.decision} ({result.approve_count} APPROVE / {result.reject_count} REJECT)")
+
+    if result.decision == "ENFORCE":
+        print("→ Action: Apply SCP quarantine to account")
+    elif result.decision == "DISMISS":
+        print("→ Action: No action taken")
+    else:
+        print("→ Action: Route to human review queue")
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