diff --git a/scripts/check_for_new_repos.py b/scripts/check_for_new_repos.py
new file mode 100644
index 00000000..dccd1df3
--- /dev/null
+++ b/scripts/check_for_new_repos.py
@@ -0,0 +1,34 @@
+import argparse
+import glob
+import os
+from collections import defaultdict
+
+import yaml
+
+
+ROOT_DIR = os.path.join(os.path.dirname(__file__), os.pardir)
+IGNORE_REPOS = ('package_', 'suite_')
+
+
+def list_repos_to_install(infile, toolset, outfile):
+    toolset_dir = os.path.join(ROOT_DIR, toolset)
+    repos = defaultdict(set)
+    for subset in glob.glob("{toolset_dir}/*.y*ml".format(toolset_dir=toolset_dir)):
+        with open(subset) as s:
+            loaded_repos = yaml.safe_load(s.read())['tools']
+            for repo in loaded_repos:
+                repos[repo['owner']].add(repo['name'])
+    with open(infile) as i:
+        new_repos = yaml.safe_load(i.read())
+    new_repos = [r for r in new_repos if not r['name'] in repos.get(r['owner'], {}) and not r['name'].startswith(IGNORE_REPOS)]
+    with open(outfile, 'w') as out:
+        out.write(yaml.safe_dump(new_repos))
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description="Takes a yaml file produced by planemo list_repos and lists new repos in toolset")
+    parser.add_argument("-i", "--infile", help="A list of potentially new repos to compare with list of usegalaxy.* repos")
+    parser.add_argument("-t", "--toolset", help="Tool collection to compare input with")
+    parser.add_argument("-o", "--outfile", help="Write new tools to this file")
+    args = parser.parse_args()
+    list_repos_to_install(args.infile, args.toolset, args.outfile)