diff --git a/audit-prep/06-deployment-manifest.md b/audit-prep/06-deployment-manifest.md
index 6678f96..a688543 100644
--- a/audit-prep/06-deployment-manifest.md
+++ b/audit-prep/06-deployment-manifest.md
@@ -31,6 +31,8 @@ The machine-readable record of every deployment, on all chains, is [`deployments
 | `stealth-registry` | Frozen/no upgrade path. | Verify user mappings cannot be changed by maintainers. |
 | `stealth-sender` | 3-of-5 multisig, 7-day timelock for upgrades, pause mechanism for emergencies. | Verify pause and upgrade powers are scoped and observable. |
 | `wraith-names` | 3-of-5 multisig, 7-day timelock, eventually renounceable. | Verify state migration and replay storage safety under upgrades. |
+| `stealth-splitter` | Frozen/no upgrade path. | Verify no admin role, no pause, no upgrade interface; `init` only stores the announcer once. |
+| `stealth-batch-sender` | No upgrade path. Pause admin set once by `init`; signer-rotation multisig set once by `init_multisig`, 7-day timelock. | Verify the multisig can only rotate its own signers and the pause admin can only pause and unpause `batch_send`. |
 
 Planned guardians from `stellar/GOVERNANCE.md`:
 
diff --git a/audit-prep/DEPLOYMENT_MANIFEST.md b/audit-prep/DEPLOYMENT_MANIFEST.md
index 2eab6a9..44c597a 100644
--- a/audit-prep/DEPLOYMENT_MANIFEST.md
+++ b/audit-prep/DEPLOYMENT_MANIFEST.md
@@ -163,7 +163,7 @@ soroban contract invoke \
 **Purpose:** Batch operations  
 **Dependencies:** stealth-announcer  
 **Init Required:** Yes  
-**Configuration:** Announcer address
+**Configuration:** Pause admin address, announcer address, optional asset policy
 
 ```bash
 soroban contract deploy \
@@ -173,12 +173,26 @@ soroban contract deploy \
 
 # Returns: CONTRACT_ID_BATCH_SENDER
 
+# Neither `init` nor `init_multisig` checks the caller (see AUTHORIZATION_MATRIX.md):
+# the first call sets the value for good, so run both right after deploy.
+
+# `admin` is the pause admin. It cannot be changed later.
 soroban contract invoke \
   --id CONTRACT_ID_BATCH_SENDER \
   --network mainnet \
   --source [DEPLOYER_SECRET_KEY] \
   -- init \
+  --admin [PAUSE_ADMIN_ADDRESS] \
   --announcer CONTRACT_ID_ANNOUNCER
+
+# Signer set for signer rotation only (see Governance Configuration).
+soroban contract invoke \
+  --id CONTRACT_ID_BATCH_SENDER \
+  --network mainnet \
+  --source [DEPLOYER_SECRET_KEY] \
+  -- init_multisig \
+  --signers '[SIGNER_ADDRESSES]' \
+  --threshold [THRESHOLD]
 ```
 
 ---
@@ -197,6 +211,19 @@ soroban contract invoke \
 - No upgrade mechanism
 - Immutable forever
 
+**stealth-splitter:**
+- No admin role
+- No pause
+- No upgrade mechanism
+- `init` stores the announcer address once; a second call returns `AlreadyInitialized`
+
+### Non-Upgradeable Contracts (Pause Admin)
+
+**stealth-batch-sender:**
+- No upgrade mechanism
+- **Pause admin:** one address, set once by `init`. `pause` and `unpause` stop or resume `batch_send` and nothing else. No function changes the admin after `init`.
+- **Governance multisig:** the signer set and threshold are set once by `init_multisig`. The multisig only rotates its own signer set: a current signer proposes, a quorum of current signers approves, and after a 7-day timelock (`ROTATION_TIMELOCK_SECS`, ledger timestamp) a signer executes; any signer can cancel a pending rotation. It cannot pause the contract, change the pause admin, or upgrade the code.
+
 ### Upgradeable Contracts (Multisig + Timelock)
 
 **stealth-sender:**
@@ -366,7 +393,7 @@ A keeper bot will monitor and extend storage rent:
 ### Emergency Procedures
 
 **Scenario 1: Critical Vulnerability Discovered**
-1. Pause affected contracts (if upgradeable)
+1. Pause affected contracts that have a pause function
 2. Notify community via status page
 3. Develop and test fix
 4. Deploy fix via upgrade process
@@ -379,7 +406,7 @@ A keeper bot will monitor and extend storage rent:
 4. Ensure adequate treasury funding
 
 **Scenario 3: Admin Key Compromise**
-1. Emergency multisig rotation
+1. Emergency multisig rotation. The stealth-batch-sender pause admin cannot be replaced: if that key is compromised, deploy a new batch sender and move integrations to it.
 2. Audit all recent admin actions
 3. Notify community
 4. Investigate compromise vector
@@ -436,7 +463,7 @@ sha256sum deployed.wasm
 
 If critical issues are discovered post-deployment:
 
-### For Frozen Contracts (announcer, registry)
+### For Frozen and Non-Upgradeable Contracts (announcer, registry, splitter, batch sender)
 **No rollback possible.** Must deploy new version with different address.
 
 **Mitigation:**
diff --git a/audit-prep/README.md b/audit-prep/README.md
index 2a65352..2fd8999 100644
--- a/audit-prep/README.md
+++ b/audit-prep/README.md
@@ -96,12 +96,12 @@ contracts/
 
 5. **stealth-splitter** (~300 LOC)
    - Payment splitting across multiple recipients
-   - **Status:** Upgradeable
+   - **Status:** Frozen (no upgrade path, no admin)
    - **Blast Radius:** High (handles user assets)
 
 6. **stealth-batch-sender** (~150 LOC)
    - Optimized batch operations
-   - **Status:** Upgradeable
+   - **Status:** Non-upgradeable (pause admin and a signer-rotation multisig, see DEPLOYMENT_MANIFEST.md)
    - **Blast Radius:** High (handles user assets)
 
 ## Audit Timeline
diff --git a/stellar/MIGRATION_V0_TO_V1.md b/stellar/MIGRATION_V0_TO_V1.md
index 8631894..2ab6e94 100644
--- a/stellar/MIGRATION_V0_TO_V1.md
+++ b/stellar/MIGRATION_V0_TO_V1.md
@@ -20,8 +20,8 @@ Wraith Protocol contract architecture separates immutable core components (froze
 | `stealth-announcer` | **Frozen (Immutable)** | None | No | Stateless (Events Only) |
 | `stealth-registry` | **Frozen (Immutable)** | None | No | `persistent()` with TTL auto-extension |
 | `stealth-sender` | **Timelocked + Multisig** | 3-of-5 Multisig | **Yes** (`DataKey::Paused`) | `instance()` for config; token transfers |
-| `stealth-batch-sender` | **Timelocked + Multisig** | 3-of-5 Multisig | **Yes** (`DataKey::Paused`) | `instance()` for config |
-| `stealth-splitter` | **Timelocked + Multisig** | 3-of-5 Multisig | **Yes** (`DataKey::Paused`) | `persistent()` for split definitions |
+| `stealth-batch-sender` | **Non-upgradeable (Pause Admin)** | None | **Yes** (`DataKey::Paused`, pause admin) | `instance()` for config |
+| `stealth-splitter` | **Frozen (Immutable)** | None | No | `instance()` for split definitions |
 | `stealth-vault` | **Timelocked + Multisig** | 3-of-5 Multisig | **Yes** (`DataKey::Paused`) | `persistent()` for time-locked deposits |
 | `wraith-names` | **Timelocked + Multisig** | 3-of-5 Multisig | **Yes** (`DataKey::Paused`) | `persistent()` for name & reverse records |
 | `wraith-asset-policy` | **Admin Managed** | Admin Address | No | `instance()` admin, `persistent()` allowlist |