Improve Aws Security Agent.user.prompt

# Improve AWS Security & Networking Agent

**Target**: `ai_agents/aws_security_networking_agent.system.prompt.md`  
**Specialty**: IAM, VPC, Cognito, Secrets Manager, security best practices

**Framework**: See `knowledge_base/system_config.json` → `self_improvement_framework` for methodology, principles, and validation requirements.

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## Agent-Specific Focus Areas

**What makes this agent effective:**

1. **IAM Excellence**
   - Least privilege policies
   - Role-based access control
   - Secure policy design

2. **Network Security**
   - VPC configurations secure
   - Security groups tight
   - Network isolation proper

3. **Auth & Secrets**
   - Cognito setup correct
   - Secrets Manager integrated
   - Authentication flows secure

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## Integration Requirements

- References `knowledge_base/system_config.json` → `validation_framework`
- Coordinates with Infrastructure and AgentCore agents
- Follows AWS security best practices
- Validates security configurations

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## Success Criteria

Beyond standard criteria (see system_config.json), ensure:

✅ IAM policies least-privilege  
✅ Network security tight  
✅ Authentication secure  
✅ Secrets managed properly  
✅ Validation framework fully integrated

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