diff --git a/.gitignore b/.gitignore
index 5e74d1f..d9dd8a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 __pycache__
 *.egg-info
 build/
+*.pyc
diff --git a/bin/last_deploy.py b/bin/last_deploy.py
new file mode 100644
index 0000000..dca74ab
--- /dev/null
+++ b/bin/last_deploy.py
@@ -0,0 +1,42 @@
+import os
+from datetime import datetime, timedelta
+
+from cad.datasources.jenkins import api
+from cad.datasources.jenkins.queries import JenkinsLastSuccessfulParameterizedBuildQuery
+from cad.engine.executor import Executor
+from cad.heuristics.deploy import Deploy
+from cad.heuristics.evaulators import SingleValueThresholdEvaluator
+
+deploy_playbook = Deploy(
+    last_deploy=SingleValueThresholdEvaluator(
+        name='LastDeploy < 24 hours!',
+        query=JenkinsLastSuccessfulParameterizedBuildQuery(
+            client=api.Client(
+                username=os.environ['JENKINS_USERNAME'],
+                password=os.environ['JENKINS_PASSWORD'],
+                job_build_url=os.environ['JENKINS_JOB_BUILD_URL']
+            ),
+            match={
+                'ENV': os.environ['DEPLOY_ENV'],
+                'REGION': os.environ['DEPLOY_REGION'],
+                'SERVICE': os.environ['DEPLOY_SERVICE']
+            },
+        ),
+        comparator=lambda x: x >= datetime.now() - timedelta(hours=24)
+    )
+)
+
+if __name__ == '__main__':
+    import logging
+    import sys
+
+    root = logging.getLogger()
+    root.setLevel(logging.DEBUG)
+
+    handler = logging.StreamHandler(sys.stdout)
+    handler.setLevel(logging.DEBUG)
+    formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
+    handler.setFormatter(formatter)
+    root.addHandler(handler)
+
+    Executor(deploy_playbook).run()
diff --git a/cad/datasources/__init__.py b/cad/datasources/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/cad/datasources/jenkins/__init__.py b/cad/datasources/jenkins/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/cad/datasources/jenkins/api.py b/cad/datasources/jenkins/api.py
new file mode 100644
index 0000000..0c482b8
--- /dev/null
+++ b/cad/datasources/jenkins/api.py
@@ -0,0 +1,45 @@
+from datetime import datetime
+
+import requests
+
+
+BUILD_SUCCESS = 'SUCCESS'
+PARAMETERS_ACTION = 'hudson.model.ParametersAction'
+
+
+class Build:
+    def __init__(self, data):
+        self.data = data
+
+    def is_success(self):
+        return self.data['result'] == BUILD_SUCCESS
+
+    def params(self):
+        # can a job have multiple params????
+        for action in self.data.get('actions', []):
+            if action['_class'] == PARAMETERS_ACTION:
+                return {p['name']:p['value'] for p in action.get('parameters', [])}
+        return {}
+
+    def datetime(self):
+        return datetime.fromtimestamp(self.data['timestamp'] / 1000)
+
+
+class Client:
+    def __init__(self, username, password, job_build_url, requests=None):
+        self.username = username
+        self.password = password
+        self.job_build_url = job_build_url
+        self.requests = requests if requests is None else requests
+
+    def builds(self):
+        query = {
+            'tree': 'builds[actions[parameters[name,value]],number,status,timestamp,id,result,parameter]'
+        }
+        resp = requests.get(
+            self.job_build_url,
+            params=query,
+            auth=(self.username, self.password)
+        )
+        assert resp.status_code == 200, resp.status_code
+        return [Build(b) for b in resp.json().get('builds')]
diff --git a/cad/datasources/jenkins/queries.py b/cad/datasources/jenkins/queries.py
new file mode 100644
index 0000000..985868e
--- /dev/null
+++ b/cad/datasources/jenkins/queries.py
@@ -0,0 +1,27 @@
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class JenkinsLastSuccessfulParameterizedBuildQuery:
+    def __init__(self, client, match={}):
+        self.c = client
+        self.match = match
+
+    def result(self):
+        builds = self.c.builds()
+        result = []
+        for build in builds:
+            if build.is_success():
+                # check to see if this build matches the match dict
+                # get all keys from match
+                build_params = build.params()
+                params_to_check = {k:build_params[k] for k in self.match.keys()}
+                if self.match == params_to_check:
+                    logger.debug({'match': params_to_check})
+                    result = [build.datetime()]
+                    break
+
+        logger.debug({'result': result})
+        return result
+
diff --git a/cad/engine/executor.py b/cad/engine/executor.py
index 327a18c..6321729 100644
--- a/cad/engine/executor.py
+++ b/cad/engine/executor.py
@@ -1,6 +1,6 @@
 import logging
 
-from cad.heuristics.nodes import End
+from cad.heuristics.nodes import End, Alert
 
 ROOT_NODE = 0
 EDGE_TO = 1
diff --git a/tests/__init__.py b/tests/__init__.py
index 9c9b589..365428f 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -8,4 +8,4 @@
 handler.setLevel(logging.DEBUG)
 formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
 handler.setFormatter(formatter)
-root.addHandler(handler)
\ No newline at end of file
+root.addHandler(handler)
diff --git a/tests/datasources/__init__.py b/tests/datasources/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/datasources/jenkins/__init__.py b/tests/datasources/jenkins/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/datasources/jenkins/test_client.py b/tests/datasources/jenkins/test_client.py
new file mode 100644
index 0000000..e32ba3e
--- /dev/null
+++ b/tests/datasources/jenkins/test_client.py
@@ -0,0 +1,75 @@
+import unittest
+
+from cad.datasources.jenkins.api import Build
+
+
+class APIClientTestCase(unittest.TestCase):
+
+    def test_client_invalid_status_code(self):
+        self.fail()
+
+    def test_client_returns_builds(self):
+        self.fail()
+
+
+class BuildTestCase(unittest.TestCase):
+
+    def test_is_success_success(self):
+        self.assertTrue(
+            Build(
+                data={
+                    'id': '34',
+                    'number': 34,
+                    'result': 'SUCCESS',
+                    'timestamp': 1536267817556
+                }
+            )
+        )
+
+    def test_build_params_no_actions(self):
+        self.fail()
+
+    def test_build_params_no_parameters(self):
+        self.fail()
+
+    def test_build_params_has_params(self):
+        self.assertEqual(
+            {
+                'AMI': '',
+                'ENV': 'staging',
+                'REGION': 'us-west-2',
+                'SERVICE': 'my-service'
+            },
+            Build(
+                data={
+                    '_class': 'org.jenkinsci.plugins.workflow.job.WorkflowRun',
+                    'actions': [
+                        {
+                            '_class': 'hudson.model.ParametersAction',
+                            'parameters': [
+                                {
+                                    '_class': 'hudson.model.StringParameterValue',
+                                    'name': 'ENV',
+                                    'value': 'staging'
+                                },
+                                {
+                                    '_class': 'hudson.model.StringParameterValue',
+                                    'name': 'REGION',
+                                    'value': 'us-west-2'
+                                },
+                                {
+                                    '_class': 'hudson.model.StringParameterValue',
+                                    'name': 'SERVICE',
+                                    'value': 'my-service'
+                                },
+                                {
+                                    '_class': 'hudson.model.StringParameterValue',
+                                    'name': 'AMI',
+                                    'value': ''
+                                }
+                            ]
+                        }
+                    ]
+                }
+            ).params()
+        )
diff --git a/tests/datasources/jenkins/test_queries.py b/tests/datasources/jenkins/test_queries.py
new file mode 100644
index 0000000..486ccfa
--- /dev/null
+++ b/tests/datasources/jenkins/test_queries.py
@@ -0,0 +1,50 @@
+import unittest
+from datetime import datetime
+from unittest.mock import MagicMock
+
+from cad.datasources.jenkins.api import Build
+from cad.datasources.jenkins.queries import JenkinsLastSuccessfulParameterizedBuildQuery
+
+
+class JenkinsLastSuccessfulParameterizedBuildQueryTestCase(unittest.TestCase):
+    def test_result_builds_no_success(self):
+        self.fail()
+
+    def test_result_builds_no_match(self):
+        self.fail()
+
+    def test_result_builds_match(self):
+        client = MagicMock()
+        client.builds.return_value = [
+            Build(
+                data={
+                    'id': '34',
+                    'number': 34,
+                    'result': 'SUCCESS',
+                    'timestamp': 1536267817556,
+                    '_class': 'org.jenkinsci.plugins.workflow.job.WorkflowRun',
+                    'actions': [
+                        {
+                            '_class': 'hudson.model.ParametersAction',
+                            'parameters': [
+                                {
+                                    '_class': 'hudson.model.StringParameterValue',
+                                    'name': 'SERVICE',
+                                    'value': 'test-service'
+                                },
+                            ]
+                        }
+                    ]
+
+                }
+            )
+        ]
+        self.assertEqual(
+            [datetime(2018, 9, 6, 17, 3, 37, 556000)],
+            JenkinsLastSuccessfulParameterizedBuildQuery(
+                client=client,
+                match={
+                    'SERVICE': 'test-service'
+                }
+            ).result()
+        )