diff --git a/reporting/README.md b/reporting/README.md
index c636b7c3..050613e4 100644
--- a/reporting/README.md
+++ b/reporting/README.md
@@ -9,7 +9,6 @@ Aggregates financial health data from the remittance_split, savings_goals, bill_
 - Admin-only archival and cleanup of old reports
 - Storage TTL management (instance: ~30 days, archive: ~180 days)
 
-<<<<<<< feature/reporting-address-config-integrity
 ## Dependency contract address integrity
 
 Reporting stores five downstream contract IDs (`remittance_split`, `savings_goals`,
@@ -18,8 +17,8 @@ Reporting stores five downstream contract IDs (`remittance_split`, `savings_goal
 **Validation (on every `configure_addresses` call)**:
 
 - **No self-reference** — None of the five addresses may equal the reporting
-  contract’s own address. Pointing a role at this contract would create ambiguous
-  cross-contract calls and break the intended “one deployment per role” model.
+  contract's own address. Pointing a role at this contract would create ambiguous
+  cross-contract calls and break the intended "one deployment per role" model.
 - **Pairwise uniqueness** — All five values must differ. Two roles must not share
   the same contract ID, or aggregation would silently read the wrong deployment
   twice (audit and correctness risk).
@@ -38,11 +37,10 @@ is rejected.
   its role (that requires off-chain governance / deployment manifests). It only
   enforces **structural** integrity: distinct callees and no reporting
   self-loop.
-- Soroban/Stellar contract IDs are not an EVM-style “zero address”; “malformed”
+- Soroban/Stellar contract IDs are not an EVM-style "zero address"; "malformed"
   in this layer means duplicate or self-reference as above.
-=======
+
 ## Quickstart
->>>>>>> main
 
 ```rust
 // 1. Initialize
diff --git a/reporting/src/tests.rs b/reporting/src/tests.rs
index bb06b794..f2c4b2a9 100644
--- a/reporting/src/tests.rs
+++ b/reporting/src/tests.rs
@@ -1,5 +1,6 @@
 use soroban_sdk::testutils::storage::Instance as StorageInstance;
 use soroban_sdk::{
+    symbol_short,
     testutils::{Address as _, Ledger, LedgerInfo},
     Address, Env,
 };
@@ -470,6 +471,78 @@ fn test_verify_dependency_address_set_rejects_self_reference() {
     ));
 }
 
+#[test]
+fn test_verify_dependency_address_set_does_not_write_storage() {
+    let env = create_test_env();
+    let contract_id = env.register_contract(None, ReportingContract);
+    let client = ReportingContractClient::new(&env, &contract_id);
+    let admin = Address::generate(&env);
+    client.init(&admin);
+
+    let addrs = ContractAddresses {
+        remittance_split: Address::generate(&env),
+        savings_goals: Address::generate(&env),
+        bill_payments: Address::generate(&env),
+        insurance: Address::generate(&env),
+        family_wallet: Address::generate(&env),
+    };
+
+    let _ = client.try_verify_dependency_address_set(&addrs);
+
+    let instance_snapshot: Option<Address> = env.storage().instance().get(&symbol_short!("ADMIN"));
+    assert!(instance_snapshot.is_some(), "ADMIN should still exist");
+
+    let stored_addrs: Option<ContractAddresses> =
+        env.storage().instance().get(&symbol_short!("ADDRESSES"));
+    assert!(stored_addrs.is_none(), "ADDRESSES must not be written by preflight");
+}
+
+#[test]
+fn test_verify_dependency_address_set_rejects_multiple_duplicates() {
+    let env = create_test_env();
+    let contract_id = env.register_contract(None, ReportingContract);
+    let client = ReportingContractClient::new(&env, &contract_id);
+    let admin = Address::generate(&env);
+    client.init(&admin);
+
+    let x = Address::generate(&env);
+    let addrs = ContractAddresses {
+        remittance_split: x.clone(),
+        savings_goals: x.clone(),
+        bill_payments: x.clone(),
+        insurance: x.clone(),
+        family_wallet: x,
+    };
+    let result = client.try_verify_dependency_address_set(&addrs);
+    assert!(matches!(
+        result,
+        Err(Ok(ReportingError::InvalidDependencyAddressConfiguration))
+    ));
+}
+
+#[test]
+fn test_verify_dependency_address_set_deterministic_error() {
+    let env = create_test_env();
+    let contract_id = env.register_contract(None, ReportingContract);
+    let client = ReportingContractClient::new(&env, &contract_id);
+    let admin = Address::generate(&env);
+    client.init(&admin);
+
+    let x = Address::generate(&env);
+    let addrs = ContractAddresses {
+        remittance_split: x.clone(),
+        savings_goals: x,
+        bill_payments: Address::generate(&env),
+        insurance: Address::generate(&env),
+        family_wallet: Address::generate(&env),
+    };
+
+    let result1 = client.try_verify_dependency_address_set(&addrs);
+    let result2 = client.try_verify_dependency_address_set(&addrs);
+    assert!(matches!(result1, Err(Ok(ReportingError::InvalidDependencyAddressConfiguration))));
+    assert!(matches!(result2, Err(Ok(ReportingError::InvalidDependencyAddressConfiguration))));
+}
+
 #[test]
 fn test_get_remittance_summary() {
     let env = Env::default();