diff --git a/docs/MVP-PRD.md b/docs/MVP-PRD.md
index a7d0403..0f06388 100644
--- a/docs/MVP-PRD.md
+++ b/docs/MVP-PRD.md
@@ -114,11 +114,11 @@ Requirements for initial setup, deployment configs, updating, and uninstall
     REQ-SNC-05 -, with outbound access to the internet and in/outbound access to the underlying OS network
     REQ-SNC-10 - The installation process shall be a single command which can be run interactively or silently
     REQ-SNC-15 - The insallation shall utilize best-practice settings and secrets storage
-    REQ-SNC-20 -
+    REQ-SNC-20 - 
 
 3.2 Platform requirements (REQ-PLT-XX)
     REQ-PLT-05 -  All processes will run as standard user (no admin / sudo elevation necessary)
-    REQ-PLT-10 -  All internet-facting HTTP endpoints shall be TLS protected with well known can
+    REQ-PLT-10 -  ...
     REQ-PLT-15 -  The system shall be Docker based limited to 150MB of memory
 Requirements addressing what OS and hardware support is in scope
 3.3 Performance and scalability (REQ-PERF-XX)
@@ -126,4 +126,21 @@ Requirements addressing what OS and hardware support is in scope
 3.5 
 ### 3.1 Reliability
 
-**REQ-REL-05:** Once setup and configured, the system will reliably operate without interaction from the user.
+REQ-REL-05: Once setup and configured, the system will reliably operate without interaction from the user.
+REQ-REL-10: The system shall automatically retry failed source fetches with exponential backoff.
+REQ-REL-15: The system shall not lose previously stored data on restart or failure.
+REQ-REL-20: The daily pipeline shall complete successfully even if one or more sources are unavailable.
+
+3.3 Observability and Diagnostics
+REQ-DIAG-05: The system shall produce structured logs with timestamps and severity levels.
+REQ-DIAG-10: A health check endpoint or command shall report overall system status and last successful run.
+REQ-DIAG-15: Run logs shall capture per-source success/failure and basic metrics (items fetched, stored, failed).
+
+3.4 Security 
+REQ-SEC-05: All external HTTP calls shall use TLS.
+REQ-SEC-10: No secrets shall be hardcoded or stored in plaintext.
+REQ-SEC-15: The system shall support least-privilege access for outbound API calls.
+
+3.5 Integration and extensibility 
+REQ-INT-05: The system shall expose research output in a structured, machine-readable format (e.g., JSON files or API) consumable by external tools.
+REQ-INT-10: The adapter layer shall support adding new sources without modifying core pipeline logic.