A2A Communication and Iterative Strategy Refinement Loop

Implement the A2A communication mechanism between your agents, focusing on a structured message format (e.g., JSON schema). Describe how the 'Market Analyst' will pass dynamic market insights to the 'Content Creator', and how the 'Strategy Optimizer' will receive generated content and simulated performance metrics to provide feedback for iterative improvements. Detail the logic for agents to react to incoming A2A messages and trigger subsequent actions. Provide pseudo-code or Python snippets for the message exchange and feedback loop.