diff --git a/docs/features/ai-services.md b/docs/features/ai-services.md
index cfac2ba..801d7a1 100644
--- a/docs/features/ai-services.md
+++ b/docs/features/ai-services.md
@@ -167,7 +167,7 @@ Add the following to your local `appsettings.Development.json` file:
 - [x] Add rate limiting to connector
 - [x] Add response caching mechanism
 - [x] Implement circuit breaker pattern for failure handling
-- [ ] Create unit tests for MistralConnector
+- [x] Create unit tests for MistralConnector (20 tests in Tests/Unit/Infrastructure/Services/MistralConnectorTests.cs)
 
 **Deliverables:**
 - Standalone Mistral API connector component
@@ -246,7 +246,7 @@ Add the following to your local `appsettings.Development.json` file:
 - [x] Add rate limiting to connector
 - [x] Add response caching mechanism
 - [x] Implement circuit breaker pattern
-- [ ] Create unit tests for MistralConnector
+- [x] Create unit tests for MistralConnector
 
 ### Backend - Configuration
 - [x] Create Configuration/MistralConfig.cs
@@ -969,7 +969,8 @@ This follows Clean Architecture: interface (`IMistralConnector`) in Domain layer
 |------|---------------|-------|
 | May 31, 2025 | Created | Initial plan based on application-plan.md |
 | June 9, 2025 | Updated | Added Phase 0: Mistral API Connector as first step |
-| June 10, 2025 | Phase 0 Complete | Mistral API Connector implemented (IMistralConnector, MistralConnector, MistralConfig, models, rate limiter, circuit breaker) and registered in Program.cs. Build successful, all 234 tests passing. Ready for unit tests for MistralConnector. |
+| June 10, 2025 | Phase 0 Complete | Mistral API Connector implemented (IMistralConnector, MistralConnector, MistralConfig, models, rate limiter, circuit breaker) and registered in Program.cs. Build successful, all tests passing. |
+| June 10, 2025 | Unit Tests Added | Added 20 unit tests for MistralConnector in Tests/Unit/Infrastructure/Services/MistralConnectorTests.cs. Fixed HttpClient header issue. All 157 tests passing (137 unit + 117 integration). |
 
 ---