diff --git a/README.md b/README.md
index 59113d8..cd4cffa 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 ---
-type: default
+type: reference
 ---
 # Map artifact minting
 
diff --git a/docs/GUIDELINES.md b/docs/GUIDELINES.md
index 5fcd934..05638b1 100644
--- a/docs/GUIDELINES.md
+++ b/docs/GUIDELINES.md
@@ -1,5 +1,5 @@
 ---
-type: default
+type: guidelines
 ---
 # Map minting guidelines
 
diff --git a/docs/impl/plans/INITIAL.md b/docs/impl/plans/INITIAL.md
index 85847b5..f4cd2f2 100644
--- a/docs/impl/plans/INITIAL.md
+++ b/docs/impl/plans/INITIAL.md
@@ -1,5 +1,7 @@
 ---
-type: default
+type: plan
+status: active
+updated: 2026-09-04
 ---
 # Initial plan
 
diff --git a/docs/impl/reports/VALHALLA-ARM64.md b/docs/impl/reports/VALHALLA-ARM64.md
index 7851688..f481cc6 100644
--- a/docs/impl/reports/VALHALLA-ARM64.md
+++ b/docs/impl/reports/VALHALLA-ARM64.md
@@ -1,3 +1,7 @@
+---
+type: report
+date: 2026-09-04
+---
 # Valhalla on the Jetson: arm64 viability and the driving-side trap
 
 **Date:** 2026-09-04