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Overview
The AI Prompt Decorator configuration takes two arrays of objects: one for prepending messages, and one for appending messages, in the following standardized format:
- role: "<system, assistant, or user>"
content: "<message content>"
This translates into the corresponding JSON format, and is attached to the beginning, or the end,
of the caller’s chat messages
array, depending on the plugin configuration.
This plugin currently supports the
llm/v1/chat
type request only.
Prerequisites
First, as in the AI Proxy documentation, create a service, route, and ai-proxy
plugin
that will serve as your LLM access point.
You can now create the AI Prompt Decorator plugin at the global, service, or route level, using the following examples.
Examples
Prompt engineering
To engineer a prompt that will always respond in French, configure the plugin to always prepend the system prompt as required:
config:
prepend:
- role: "system"
content: "You will always respond in the French (France) language."
Now a Kong consumer makes a call to the configured LLM, and this message is prepended to each call:
{
"messages": [
// Plugin-injected prepend message:
{
"role": "system",
"content": "You will always respond in the French (France) language."
},
// Caller's original request:
{
"role": "system",
"content": "You are a legal document auditor."
},
{
"role": "user",
"content": "Please audit this base64-encoded PDF based on my configured rules: QkVHSU4tRE9DVFlQRS1QREYtLi4uLS4uLi0uLi4....."
}
]
}
Chat history
To engineer a complex chat history that can be continued by any user, configure the plugin to both prepend and append multiple messages.
The ordering on each side is preserved in all cases (first in, first out):
config:
prepend:
- role: "system"
content: "You are a scientist, specialising in survey analytics."
- role: "user"
content: "Classify this test result set as positive, negative, or neutral."
- role: "assistant"
content: "These tests are NEUTRAL."
append:
- role: "user"
content: "Do not mention any real participants' names in your justification."
After plugin execution, the LLM request will look like this:
{
"messages": [
// Plugin-injected prepend messages:
{
"role": "system",
"content": "You are a scientist, specialising in survey analytics."
},
{
"role": "user",
"content": "Classify this test result set as positive, negative, or neutral."
},
{
"role": "assistant",
"content": "These tests are NEUTRAL."
},
// Caller's original request:
{
"role": "user",
"content": "These are the updated results, does it change the classification? <new_test_results>"
},
// Plugin-injected append message:
{
"role": "user",
"content": "Do not mention any real participants' names in your justification."
}
]
}