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• Rename tool from 'agent_communicate' to a clearer action verb like 'invoke_agent', 'send_agent_message', or 'request_agent_action' to signal intent and follow verb-noun conventions
• Document the exact output schema: specify all fields in the response (e.g., response_id, status, body, timestamp, sender_id), their types, and when each is populated
• Replace generic 'message' parameter (type object) with explicit fields: add 'message_type' (enum: request, response, event, command), 'body' (string or object with constraints), and 'metadata' (optional object); or reference a strict schema by name
• Add parameter validation hints to 'targetAgent': specify regex pattern for agent:// URIs (e.g., '^agent://[a-z0-9_-]+/[a-z0-9_-]+$') and UUID format (RFC 4122), with examples
• Document idempotency: state explicitly whether repeated calls with same targetAgent, message, and trace=true produce duplicate deliveries or are idempotent
• Add error classification: describe what errors are retryable (timeout, network error) vs. user-fixable (agent not found, invalid format) vs. fatal (permission denied)
• Extend description to 150-250 characters with WHEN and WHAT context: 'Send a message to another agent in the mesh using a specified communication pattern (request-reply, broadcast, pub-sub, or pipeline). Use this to coordinate distributed tasks, gather results from multiple agents, or trigger workflows. Requires agent-to-agent permissions.'
• Document parameter interdependencies in 'message' and 'pattern': specify which message fields are required for each pattern type (e.g., does pub-sub require a 'topic' field?)