diff --git a/databuild.schema.json b/databuild.schema.json
index 07377f8..a9e3bfc 100644
--- a/databuild.schema.json
+++ b/databuild.schema.json
@@ -26,7 +26,7 @@
 
     "JobConfig": {
       "type": "object",
-      "required": ["outputs", "inputs", "executable"],
+      "required": ["outputs", "inputs","args","env"],
       "properties": {
         "outputs": {
           "type": "array",
@@ -47,10 +47,6 @@
           "type": "object",
           "additionalProperties": { "type": "string" },
           "description": "Environment variables"
-        },
-        "executable": {
-          "type": "string",
-          "description": "Path to executable that will be run"
         }
       }
     },
diff --git a/examples/hello_world/README.md b/examples/hello_world/README.md
new file mode 100644
index 0000000..784f9af
--- /dev/null
+++ b/examples/hello_world/README.md
@@ -0,0 +1,22 @@
+
+# Hello World
+
+Demonstrates a simple parameterized job.
+
+## Configure
+
+```bash
+$ bazel run //:test_job.cfg test_output
+{"outputs":["test_output"],"inputs":[],"args":["will", "build", "test_output"],"env":{"foo":"bar"}}
+```
+
+## Execute
+
+Doesn't actually write an output.
+
+```bash
+$ bazel run //:test_job.cfg test_output | bazel run //:test_job
+EXECUTE!
+foo=bar
+args=will build test_output
+```
diff --git a/examples/hello_world/configure.sh b/examples/hello_world/configure.sh
index 7f9e902..727014c 100755
--- a/examples/hello_world/configure.sh
+++ b/examples/hello_world/configure.sh
@@ -1,2 +1,2 @@
 # Create a test job config
-echo "{\"outputs\":[\"$1\"],\"inputs\":[],\"args\":[\"arg1\", \"arg2\"],\"env\":{\"foo\":\"bar\"},\"executable\":\"TODO\"}"
+echo "{\"outputs\":[\"$1\"],\"inputs\":[],\"args\":[\"will\", \"build\", \"$1\"],\"env\":{\"foo\":\"bar\"}}"