AIP: 8 primitives for agent coordination

AIP marks a necessary architectural shift from stateless API calls to stateful agentic contracts that mirror human-like work delegation. The Pact primitive treats AI interactions as negotiations rather than blind instructions, while the focus on physical motion of work and verifiable Yields addresses reliability gaps in complex chains. Furthermore, native support for Spun child pacts solves tracking issues in deep delegation hierarchies, aligning with the growing need for interoperability beyond the Model Context Protocol (MCP).