Add SQL example

module/move/assistant/design/agents_design.md

@@ -56,7 +56,7 @@ Those nodes perform intermediate processing of information. It can be either a m
 
 **Paramters**:
 
-- `path`: path to the executable.
+- `cmd`: command to execute with path to the executable and arguments.
 
 #### Agent completion node
 

module/move/assistant/design/agents_examples/sql.yaml

@@ -0,0 +1,32 @@
+title: DB information extractor
+description: >
+  This system accepts user query for the DB in natural language and converts it into SQL code, which is then passed to a script that will
+  execute this SQL and present the output.
+  This example requires that the script is correctly configured to the real DB.
+
+nodes:
+  - id: question_input
+    type: trigger.stdin
+    prompt: 'Your query: '
+    next: translator
+
+  - id: translator
+    type: agent.completion
+    # In real life scenario you should specify here:
+    # - Which DB is used?
+    # - What are the tables and columns?
+    # - Schema of the DB.
+    system_message: 'Your task is to translate user query into SQL code for the database.'
+    user_message: '{{question_input}}'
+    next: query
+
+  - id: query
+    type: script
+    # In real life scenario you should add parameters for contacting the DB.
+    cmd: 'query_db {{translator}}'
+    next: output
+
+  - id: output
+    type: event.stdout
+    output: 'Output: {{query}}'
+    next: scenario.termination