diff --git a/commands/gsd/execute-plan.md b/commands/gsd/execute-plan.md
index f43aaac92..db01cb904 100644
--- a/commands/gsd/execute-plan.md
+++ b/commands/gsd/execute-plan.md
@@ -27,6 +27,7 @@ Uses intelligent segmentation:
 @~/.claude/get-shit-done/workflows/execute-phase.md
 @~/.claude/get-shit-done/templates/summary.md
 @~/.claude/get-shit-done/references/checkpoints.md
+@~/.claude/get-shit-done/references/tdd.md
 </execution_context>
 
 <context>
diff --git a/commands/gsd/plan-phase.md b/commands/gsd/plan-phase.md
index 493d6fdb0..4f32e587c 100644
--- a/commands/gsd/plan-phase.md
+++ b/commands/gsd/plan-phase.md
@@ -25,6 +25,7 @@ Output: One or more PLAN.md files in the phase directory (.planning/phases/XX-na
 @~/.claude/get-shit-done/references/plan-format.md
 @~/.claude/get-shit-done/references/scope-estimation.md
 @~/.claude/get-shit-done/references/checkpoints.md
+@~/.claude/get-shit-done/references/tdd.md
 </execution_context>
 
 <context>