diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..48213d9
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*.sarif filter=lfs diff=lfs merge=lfs -text
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c0ca852
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,15 @@
+# Compiled python modules.
+*.pyc
+
+# Setuptools distribution folder.
+/dist/
+
+# Python egg metadata, regenerated from source files by setuptools.
+/*.egg-info
+
+# virtual environment
+/.venv/
+
+# Backup files
+*~
+
diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..1fcc1e5
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1 @@
+include README.org
diff --git a/README.org b/README.org
new file mode 100644
index 0000000..3f391d9
--- /dev/null
+++ b/README.org
@@ -0,0 +1,55 @@
+* Collection of cli tools for SARIF processing 
+  This is a work in progress; the plan is as follows:
+
+  Each of these tools present a high-level command-line interface to extract a
+  specific subset of information from a SARIF file.  The format of each tool's
+  /output/ is versioned and, as much as possible, independent of the input.
+
+  It is the intent of these tools to
+  - hide the internals of sarif when /used/
+  - provide examples of extracting information from sarif files while writing your
+    own or extending the tools
+
+* Setup for development
+  Set up the virtual environment and install the packages:
+  # pip freeze > requirements.txt
+  #+BEGIN_SRC sh
+    python3 -m venv .venv
+    . .venv/bin/activate
+    python3 -m pip install -r requirements.txt
+    # Or separately:
+    pip install --upgrade pip
+    pip install ipython pyyaml
+  #+END_SRC
+
+  "Install" for local development:
+  #+BEGIN_SRC sh
+  pip install -e .
+  #+END_SRC
+
+* Sample Data
+  The query results in =data/= are taken from lgtm.com, which ran the
+  : ql/$LANG/ql/src/codeql-suites/$LANG-lgtm.qls
+  queries.
+
+  The linux kernel has both single-location results (="kind": "problem"=) and path
+  results (="kind": "path-problem"=).  It also has results for multiple source
+  languages.
+
+  The subset of files referenced by the sarif results is in =data/linux-small/=
+  and is taken from 
+  #+begin_src javascript
+    "versionControlProvenance": [
+        {
+            "repositoryUri": "https://github.com/torvalds/linux.git",
+            "revisionId": "d9abdee5fd5abffd0e763e52fbfa3116de167822"
+        }
+    ]
+  #+end_src
+
+* Commands
+
+
+
+#+OPTIONS: ^:{}
+
diff --git a/bin/json-to-yaml b/bin/json-to-yaml
new file mode 100755
index 0000000..ee42064
--- /dev/null
+++ b/bin/json-to-yaml
@@ -0,0 +1,6 @@
+#!/usr/bin/env python
+import json
+import yaml
+import sys
+
+yaml.dump(json.load(sys.stdin), stream=sys.stdout)
diff --git a/bin/sarif-digest b/bin/sarif-digest
new file mode 100755
index 0000000..75470ab
--- /dev/null
+++ b/bin/sarif-digest
@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+import json
+import sarif_cli as S
+import sys
+
+# TODO command-line: sarif-digest [<file>]
+# 
+# reduce size by listing only first/last elements
+fpath = sys.argv[1]
+with open(fpath, 'r') as fp:
+    sarif_struct = json.load(fp)
+
+def _show_dict(elem, context):
+    return {key : _compact(val, key) for key, val in elem.items()}
+
+def _show_list(elem, context):
+    if len(elem) > 2:
+        # first and last
+        return ["------------%d items, showing first and last ----------" % len(elem),
+                _compact(elem[0], 0), 
+                _compact(elem[-1], -1)]
+    if len(elem) > 0:
+        return [_compact(elem[i], i) for i in range(0, len(elem))]
+    else:
+        return elem
+
+def _compact(elem, context):
+    t = type(elem)
+    if t == dict:
+        return _show_dict(elem, context)
+    elif t == list:
+        return _show_list(elem, context)
+    else:
+        return elem
+
+json.dump(_compact(sarif_struct, "starting"), sys.stdout, indent=2)
+
+
diff --git a/bin/sarif-labeled b/bin/sarif-labeled
new file mode 100644
index 0000000..4e06158
--- /dev/null
+++ b/bin/sarif-labeled
@@ -0,0 +1,50 @@
+#!/usr/bin/env python
+import argparse
+import json
+import sarif_cli as S
+import sys
+import collections
+
+# TODO
+# require python 3.7+ for ordered dictionaries?
+
+parser = argparse.ArgumentParser(description='Output a sarif file with labeled paths preceeding arrays and objects')
+parser.add_argument('file', metavar='file', type=str, help='input file, - for stdin')
+
+args = parser.parse_args()
+with open(args.file, 'r') if args.file != '-' else sys.stdin as fp:
+    sarif_struct = json.load(fp)
+
+def _label_dict(elem, path):
+    d = collections.OrderedDict()
+    for key, val in elem.items():
+        subpath = path + "['%s']" % key
+        if type(val) in [dict, list]:
+            d[subpath] = "----path----"
+        d[key] = _label(val, subpath)
+    return d
+
+def _label_list(elem, path):
+    if len(elem) > 0:
+        l = []
+        for i in range(0, len(elem)):
+            subpath = path + "[%d]" % i
+            if i % 4 == 0:
+                l.append("---- %s ----" % subpath)
+            l.append(_label(elem[i], subpath))
+        return l
+    else:
+        return elem
+
+def _label(elem, path):
+    t = type(elem)
+    if t == dict:
+        return _label_dict(elem, path)
+    elif t == list:
+        return _label_list(elem, path)
+    else:
+        return elem
+
+json.dump(_label(sarif_struct, "sarif_struct"), sys.stdout, indent=2)
+
+
diff --git a/bin/sarif-list-files b/bin/sarif-list-files
new file mode 100755
index 0000000..d3c39e6
--- /dev/null
+++ b/bin/sarif-list-files
@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+import argparse
+import json
+import sarif_cli as S
+import sys
+import collections
+
+parser = argparse.ArgumentParser(description='list source files referenced by sarif file')
+parser.add_argument('file', metavar='sarif-file', type=str,
+                    help='input file, - for stdin')
+args = parser.parse_args()
+
+# Grab the file
+with open(args.file, 'r') if args.file != '-' else sys.stdin as fp:
+    sarif_struct = json.load(fp)
+
+# Make sure there are some results
+num_results = len(S.get(sarif_struct, 'runs', 0, 'results'))
+if num_results == 0:
+    S.exit(0)
+
+# Collect the file names
+uris = set()
+
+# Locations for @kind problem
+# e.g.,
+# sarif_struct['runs'][0]['results'][5]['locations'][0]['physicalLocation']['artifactLocation']
+for resi in range(0, len(S.get(sarif_struct, 'runs', 0, 'results'))):
+    uri = S.get(sarif_struct, 'runs', 0, 'results', resi, 'locations', 0,
+                'physicalLocation', 'artifactLocation', 'uri')
+    uris.add(uri)
+    
+# Locations for @kind path-problem
+# e.g. sarif_struct['runs'][0]['results'][22]['codeFlows'][0]['threadFlows'][0]['locations'][1]['location']
+for resi in range(0, len(S.get(sarif_struct, 'runs', 0, 'results'))):
+    if 'codeFlows' in S.get(sarif_struct, 'runs', 0, 'results', resi).keys():
+        locations = S.get(sarif_struct, 'runs', 0, 'results', resi, 'codeFlows', 0,
+                          'threadFlows', 0, 'locations')
+        for loci in range(0, len(locations)):
+            uri = S.get(locations, loci, 'location', 'physicalLocation',
+                        'artifactLocation', 'uri')
+            uris.add(uri)
+uris = list(uris)
+uris.sort()
+for u in uris:
+    print(u)
diff --git a/bin/sarif-results-summary b/bin/sarif-results-summary
new file mode 100644
index 0000000..4099c54
--- /dev/null
+++ b/bin/sarif-results-summary
@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+import argparse
+import json
+import sarif_cli as S
+import sys
+import collections
+
+parser = argparse.ArgumentParser(description='summary of results')
+parser.add_argument('file', metavar='sarif-file', type=str, help='input file, - for stdin')
+
+args = parser.parse_args()
+with open(args.file, 'r') if args.file != '-' else sys.stdin as fp:
+    sarif_struct = json.load(fp)
+
+num_results = len(S.get(sarif_struct, 'runs', 0, 'results'))
+S.msg("Found %d results\n\n" %  num_results)
+if num_results == 0:
+    S.exit(0)
+
+for resi in range(0, len(S.get(sarif_struct, 'runs', 0, 'results'))):
+    message = S.get(sarif_struct, 'runs', 0, 'results', resi, 'message', 'text')
+    artifact = S.get(sarif_struct, 'runs', 0, 'results', resi, 'locations', 0,
+                     'physicalLocation', 'artifactLocation')
+    region = S.get(sarif_struct, 'runs', 0, 'results', resi, 'locations', 0,
+                     'physicalLocation', 'region')
+    filepath = "%s:%d:%d" % (artifact['uri'], region['startLine'],
+                             region.get('startColumn', -1)) 
+    S.msg("%s: %s\n" % (filepath, message))
+
+
+
+
diff --git a/data/torvalds_linux__2021-10-21_10_07_00__export.sarif b/data/torvalds_linux__2021-10-21_10_07_00__export.sarif
new file mode 100644
index 0000000..3106831
--- /dev/null
+++ b/data/torvalds_linux__2021-10-21_10_07_00__export.sarif
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6336c9f7d5c6f6c21ccfd5a5a63adcad710c4ddbe326ec37b5964ac172f8e817
+size 1196634
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..807c031
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,18 @@
+appnope==0.1.2
+attrs==21.2.0
+backcall==0.2.0
+decorator==5.1.0
+ipython==7.28.0
+jedi==0.18.0
+matplotlib-inline==0.1.3
+parso==0.8.2
+pbr==5.6.0
+pexpect==4.8.0
+pickleshare==0.7.5
+prompt-toolkit==3.0.20
+ptyprocess==0.7.0
+Pygments==2.10.0
+PyYAML==6.0
+sarif-om==1.0.4
+traitlets==5.1.0
+wcwidth==0.2.5
diff --git a/sarif_cli/__init__.py b/sarif_cli/__init__.py
new file mode 100644
index 0000000..67709c7
--- /dev/null
+++ b/sarif_cli/__init__.py
@@ -0,0 +1,18 @@
+import sys
+
+MIN_PYTHON = (3, 7)
+if sys.version_info < MIN_PYTHON:
+    sys.exit("Python %s.%s or later is required.\n" % MIN_PYTHON)
+
+def get(sarif_struct, *path):
+    """ Get the sarif entry at PATH """
+    res = sarif_struct
+    for p in path:
+        res = res[p]
+    return res
+
+def msg(message):
+    """ Print message to stdout """
+    sys.stdout.write(message)
+    sys.stdout.write('\n')
+    
diff --git a/sarif_cli/tests/__init__.py b/sarif_cli/tests/__init__.py
new file mode 100644
index 0000000..792d600
--- /dev/null
+++ b/sarif_cli/tests/__init__.py
@@ -0,0 +1 @@
+#
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..f95913a
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,17 @@
+from setuptools import setup
+import glob
+
+setup(name='sarif_cli',
+      version='0.1',
+      description='Collection of command line tools for sarif files',
+      url='https://github.com/hohn/sarif-cli',
+      author='Michael Hohn',
+      author_email='hohn@github.com',
+      license='MIT',
+      packages=['sarif_cli'],
+      install_requires=[],
+      include_package_data=True,
+      scripts=glob.glob("bin/sarif-*"),
+      zip_safe=False,
+      python_requires='>=3.7'
+      )