diff --git a/AGENTS.md b/AGENTS.md
index 62145a9..f05cfed 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -188,7 +188,7 @@ After completing all Phase 1-3 controllers (PdfValidation, PdfAttachment, SwissQ
 dotnet build
 ```
 
-**Run tests (30 tests as of Feature 3 - PDF/A Validation):**
+**Run tests (62 passed, 7 skipped as of Feature 4 - PDF Attachment Extraction):**
 ```powershell
 dotnet test
 ```
@@ -275,10 +275,15 @@ Do NOT add `if (result.IsSuccess)` checks. Throw exceptions for errors. The midd
 |-----------|--------|-------|
 | **PdfValidationController** | ✅ DONE | 13 (7 validate + 6 validate-pdfa) |
 | **SwissQrCodeController** | ✅ DONE | 2 |
-| **PdfAttachmentController** | ⏳ Pending | 0 |
+| **PdfAttachmentController** | ⏳ Partial (2/3 endpoints) | 10 (4 check + 6 extract) |
 | **PdfOperationsController** | ⏳ Pending | 0 |
 | **PdfConversionController** | ⏳ Pending | 0 |
 
+**PdfAttachmentController Status:**
+- ✅ `POST /api/pdf/attachments/check` - DONE (with multipart + Base64 support)
+- ✅ `POST /api/pdf/attachments/extract` - DONE (Phase 1, Priority 4) - Returns ZIP with all attachments
+- ⏳ `POST /api/pdf/attachments/add` - TODO (Phase 2, Priority 7)
+
 **Note:** PdfRenderController removed - moved to .NET client library.
 
 ---