diff --git a/bundle/agents/.gitkeep b/bundle/agents/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/bundle/agents/researcher.md b/bundle/agents/researcher.md
index 59a71b9..2c58680 100644
--- a/bundle/agents/researcher.md
+++ b/bundle/agents/researcher.md
@@ -150,7 +150,7 @@ You can generate inline UI controls — filter toggles, sortable tables, card gr
 forms — that render directly in the chat. Use A2UI for simple interactive result
 presentation when the data is straightforward.
 
-@mention bundle/context/a2ui-format.md
+@mention bundle/context/a2ui-format
 
 ## Artifacts
 
@@ -158,7 +158,7 @@ For research worth saving — comparison guides, reports, curated lists — gene
 persistent artifact documents. Artifacts appear in the right panel and survive
 across sessions.
 
-@mention bundle/context/artifact-conventions.md
+@mention bundle/context/artifact-conventions
 
 ## Inline Visuals (Claude-style)
 
@@ -173,7 +173,7 @@ Good candidates for inline visual generation:
 - **Scatter plots** for price vs. rating or mileage vs. price analysis
 - **Timeline charts** for flight options by departure time
 
-@mention bundle/context/visual-artifacts.md
+@mention bundle/context/visual-artifacts
 
 ## Research Workflow
 
diff --git a/bundle/behaviors/.gitkeep b/bundle/behaviors/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/bundle/context/.gitkeep b/bundle/context/.gitkeep
deleted file mode 100644
index e69de29..0000000