## Implementation Complete Added comprehensive E2E test suite for updating issue descriptions with markdown formatting. ### Files Changed - `tests/e2e/test_issue_description_add_markdown.py` (new file, 417 lines) ### Tests Added **TestUpdateIssueDescriptionAddMarkdown class with 5 test cases:** 1. `test_add_markdown_to_empty_description` - Creates issue with empty description, adds markdown (headings, bold, italic, lists), verifies via API 2. `test_add_markdown_to_plain_text_description` - Replaces plain text with markdown using triple-click select-all 3. `test_add_code_block_to_description` - Adds inline code and fenced code blocks 4. `test_add_markdown_and_verify_rendered_view` - Verifies markdown renders correctly after save and modal reopen 5. `test_append_markdown_to_existing_description` - Appends new markdown sections to existing content ### Helper Function Added `create_issue_with_empty_description()` to work around the default behavior of `create_test_issue()` which uses a default description when empty string is passed. ### Verification All 5 tests pass against local debug server.