diff --git a/.core/go.yaml b/.core/go.yaml
new file mode 100644
index 0000000..534321b
--- /dev/null
+++ b/.core/go.yaml
@@ -0,0 +1,13 @@
+# .core/go.yaml — Go subtree marker for the Lethean canon.
+# Presence of .core/ + go/ marks this repo as a managed canonical repo.
+# Audit-sweep + dispatch tooling discover via this marker.
+version: 1
+
+project:
+  name: docs
+  type: go
+
+go:
+  module: dappco.re/go/core/docs
+  subtree: go
+  go_version: "1.26.0"
diff --git a/.gitignore b/.gitignore
index ef702cc..e9a72c9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,10 @@
 site/
 .cache/
 .DS_Store
-.core/
 .idea/
+.core/workspace/
+.core/vm/
+.core/cache/
+.core/runtime/
+.core/*.duckdb*
+.core/coderabbit-findings.txt