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Communications & Agent Communication Contract

Bridge

The Communications Bridge carries Work-linked communication across:

• Workbench chat;
• Slack;
• email;
• meetings;
• calls;
• agent channels;
• system events.

Semantic envelope

Tenant
Principal
Sender
Recipient
Work ID
Task ID
Purpose
Context Reference
Authority Context
Source Channel
Correlation ID
Causation ID
Provenance
Timestamp

ACP

ACP = governed agent-to-agent / agent-to-Twin work handoff.

It carries:

Work
Context Reference
Capability
Constraints
Expected Output
Evidence Requirement
Result
Status
Attribution

MCP

MCP = tool/resource interoperability.

ACP and MCP are complementary, not substitutes.

Communication law

The Bridge transports Work-linked communication; it does not create authority or canonical truth.