diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a7b25f5..8fa3cfa 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,8 +22,11 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: Run test suite
-        working-directory: kernel/tests
-        run: python -m unittest discover -s . -p 'test_*.py' -v
+        run: |
+          export PYTHONPATH=.
+          python quickstart.py --init-only
+          touch kernel/authority_queue.json kernel/court_records.json economy/transactions.jsonl economy/revenue.json
+          python -m unittest discover kernel/tests -v
 
       - name: Run governance simulation
         run: python examples/simulate_governance.py
diff --git a/kernel/federation.py b/kernel/federation.py
index 3d70ba1..bb0e8f6 100644
--- a/kernel/federation.py
+++ b/kernel/federation.py
@@ -1059,6 +1059,8 @@ def snapshot(self, *, bound_org_id='', admission_registry=None):
 
 
 def _default_http_post_json(url, data):
+    if not url.lower().startswith(('http://', 'https://')):
+        raise FederationDeliveryError('Invalid URL scheme: must be http or https')
     request = urllib.request.Request(
         url,
         data=json.dumps(data).encode('utf-8'),
@@ -1080,6 +1082,8 @@ def _default_http_post_json(url, data):
 
 
 def _default_http_get_json(url):
+    if not url.lower().startswith(('http://', 'https://')):
+        raise FederationDeliveryError('Invalid URL scheme: must be http or https')
     request = urllib.request.Request(url, method='GET')
     try:
         with urllib.request.urlopen(request, timeout=10) as response:
diff --git a/kernel/treasury.py b/kernel/treasury.py
index ae13785..aeef665 100644
--- a/kernel/treasury.py
+++ b/kernel/treasury.py
@@ -2456,6 +2456,8 @@ def _json_rpc_request(rpc_url, method, params=None, *, timeout_seconds=10):
     rpc_url = str(rpc_url or '').strip()
     if not rpc_url:
         raise ValueError('rpc_url is required')
+    if not rpc_url.lower().startswith(('http://', 'https://')):
+        raise ValueError('Invalid RPC URL scheme: must be http or https')
     payload = {
         'jsonrpc': '2.0',
         'id': f'rpc_{uuid.uuid4().hex[:12]}',
diff --git a/kernel/workspace.py b/kernel/workspace.py
index 0fa98c4..7d0a6b5 100644
--- a/kernel/workspace.py
+++ b/kernel/workspace.py
@@ -1049,6 +1049,8 @@ def _federation_claims_dict(claims):
         return dict(claims)
     if hasattr(claims, 'to_dict'):
         return claims.to_dict()
+    if hasattr(claims, '__dict__'):
+        return vars(claims)
     return {}