diff --git a/.claude/agents/agent-tdd-workflow.md b/.claude/agents/agent-tdd-workflow.md
index 3bbc76b3..389f667c 100644
--- a/.claude/agents/agent-tdd-workflow.md
+++ b/.claude/agents/agent-tdd-workflow.md
@@ -88,7 +88,7 @@ The **TDD8 cycle** is an 8-step comprehensive development workflow that extends
 - **Actions:**
   - Use `make tdd-finish` to move tests to main test suite
   - Commit changes with descriptive messages
-  - Update project documentation (diary entries, etc.)
+  - Update project documentation (diary entries, cost_note, todo etc.)
   - Close related issues and update project status
 - **Outputs:** Completed feature integrated into main codebase
 - **Success Criteria:** Clean workspace, integrated tests, documented progress