OpenChainGraph Suite · CONTRACT A3 · arch #5

Agentic Policy Chain

End-to-end agentic payment policy pipeline in four hash-chained steps: define a spend mandate, build the AP2 Verifiable Digital Credential, validate the mandate schema against CONTRACT §4, and score MCP deployment readiness — all anchored into a single composite §4 artifact with a cryptographic execution-hash chain.

OpenChainGraph · 4 Steps AP2 · MCP · Agent Guardrail Hash-Anchored §4 chain_depth:4 Client-Side · Zero PII
Chain Topology — ART-15 → ART-16 → ART-17 → ART-18
ART-15 · depth:1 Mandate Sandbox agent_guardrail ART-16 · depth:2 AP2 VDC Builder compliance_ctrl ART-17 · depth:3 Policy Validator compliance_ctrl ART-18 · depth:4 MCP Readiness infrastructure
1
Define Agent Payment Policy ART-15
Agentic Mandate Sandbox · agent_guardrail_mandate · chain_depth:1
Open ART-15 ↗
ART-15 — Execution Hash (chain_depth:1)
execution_hash:
parent_hashes: [] · parent_tool_ids: []
2
Build AP2 Mandate VDC ART-16
Google AP2 Mandate Builder · compliance_control · chain_depth:2 · consumes ART-15
3
Validate Policy Mandate ART-17
AP2 MCP Policy Validator · compliance_control · chain_depth:3 · consumes ART-16
4
Score MCP Readiness ART-18
MCP Developer Readiness Scorecard · infrastructure_mandate · chain_depth:4 · consumes ART-17
▶ Run this chain (live) browser · real execution · composite §4 hash
Composite §4 Artifact Export
Downloads the full hash-chained composite §4 artifact — all 4 step artifacts with execution_hashes, parent_hashes, chain_depth values, and the terminal step's chain summary. Chain is complete when all 4 steps show green.