# Counterparty tier policy (/programs/policy-vault/counterparty-tier-policy)



`In progress`

The CounterpartyTier policy reads Quantu AtomStats fields through a manual byte parser, then checks trust tier, risk score, and confidence before payment release.

| Source           | Path                                                                                                                                                                                               |
| ---------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| evaluator        | [`programs/policy-vault/src/policies/counterparty_tier.rs`](https://github.com/agenttrust-labs/agenttrust/blob/main/programs/policy-vault/src/policies/counterparty_tier.rs)                       |
| AtomStats parser | [`programs/policy-vault/src/ext/atom_engine.rs`](https://github.com/agenttrust-labs/agenttrust/blob/main/programs/policy-vault/src/ext/atom_engine.rs)                                             |
| proof            | [`programs/policy-vault/src/proofs/inv_counterparty_tier_monotone.rs`](https://github.com/agenttrust-labs/agenttrust/blob/main/programs/policy-vault/src/proofs/inv_counterparty_tier_monotone.rs) |