diff --git a/.gitignore b/.gitignore
index 40dfb028..2a45e892 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,6 +30,7 @@ TDPLAN-*.md
 # AIPass runtime state (local to each installation)
 AIPASS_REGISTRY.json
 .trinity/
+!src/aipass/spawn/templates/*/.trinity/
 .ai_mail.local/
 ai_mail.local/
 .feedback.local/
diff --git a/src/aipass/spawn/templates/birthright/.trinity/local.json b/src/aipass/spawn/templates/birthright/.trinity/local.json
new file mode 100644
index 00000000..2dacd3f0
--- /dev/null
+++ b/src/aipass/spawn/templates/birthright/.trinity/local.json
@@ -0,0 +1,37 @@
+{
+  "document_metadata": {
+    "document_type": "session_history",
+    "document_name": "{{BRANCHNAME}}.LOCAL",
+    "version": "2.0.0",
+    "schema_version": "2.0.0",
+    "created": "{{DATE}}",
+    "last_updated": "{{DATE}}",
+    "managed_by": "{{BRANCHNAME}}",
+    "tags": [
+      "session_tracking",
+      "work_log",
+      "{{BRANCHNAME}}"
+    ],
+    "limits": {
+      "max_sessions": 20,
+      "max_key_learnings": 25,
+      "session_summary_max_chars": 150,
+      "learning_value_max_chars": 200,
+      "note": "Auto-rollover to @memory when limits exceeded. Oldest entries trimmed first."
+    },
+    "status": {
+      "health": "healthy",
+      "last_health_check": "{{DATE}}",
+      "current_lines": 0
+    }
+  },
+  "key_learnings": {},
+  "sessions": [
+    {
+      "session_number": 1,
+      "date": "{{DATE}}",
+      "summary": "Branch initialized - {{BRANCHNAME}} created by aipass init.",
+      "status": "completed"
+    }
+  ]
+}
diff --git a/src/aipass/spawn/templates/birthright/.trinity/observations.json b/src/aipass/spawn/templates/birthright/.trinity/observations.json
new file mode 100644
index 00000000..5dba0989
--- /dev/null
+++ b/src/aipass/spawn/templates/birthright/.trinity/observations.json
@@ -0,0 +1,36 @@
+{
+  "document_metadata": {
+    "document_type": "collaboration_patterns",
+    "document_name": "{{BRANCHNAME}}.OBSERVATIONS",
+    "version": "1.0.0",
+    "schema_version": "1.0.0",
+    "created": "{{DATE}}",
+    "last_updated": "{{DATE}}",
+    "managed_by": "{{BRANCHNAME}}",
+    "tags": [
+      "collaboration",
+      "patterns",
+      "{{BRANCHNAME}}"
+    ],
+    "limits": {
+      "max_lines": 600,
+      "note": "Auto-rollover when max_lines exceeded"
+    },
+    "status": {
+      "health": "healthy",
+      "current_lines": 0,
+      "last_health_check": "{{DATE}}"
+    }
+  },
+  "guidelines": {
+    "purpose": "Capture collaboration patterns and experiential insights over time",
+    "chronological_order": "Newest entries at TOP, oldest at BOTTOM - NEVER reorder"
+  },
+  "observations": [
+    {
+      "date": "{{DATE}}",
+      "pattern": "Branch initialized. Ready to begin capturing collaboration patterns.",
+      "source": "initialization"
+    }
+  ]
+}