Class: AIRecordFinder::PromptBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/ai_record_finder/prompt_builder.rb

Overview

Builds strict prompts so the AI emits only the expected JSON DSL.

Constant Summary collapse

ALLOWED_OPERATORS = 
%w[eq gt lt gte lte between in like].freeze

Instance Method Summary collapse

Constructor Details

#initialize(schema:, max_limit:) ⇒ PromptBuilder

Returns a new instance of PromptBuilder.



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# File 'lib/ai_record_finder/prompt_builder.rb', line 10

def initialize(schema:, max_limit:)
  @schema = schema
  @max_limit = max_limit
end

Instance Method Details

#system_prompt ⇒ Object 



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# File 'lib/ai_record_finder/prompt_builder.rb', line 15

def system_prompt
  <<~PROMPT
    You convert user requests into a strict query JSON DSL for ActiveRecord.
    Output rules:
    - Return ONLY JSON. No markdown, no code fences, no commentary.
    - Never output SQL, pseudo-SQL, or Ruby code.
    - Do not include keys not listed below.
    - Use only the provided schema fields.
    - Limit must be an integer between 1 and #{@max_limit}.
    - Operators allowed: #{ALLOWED_OPERATORS.join(', ')}

    JSON format:
    {
      "filters": [
        { "field": "status", "operator": "eq", "value": "unpaid" }
      ],
      "limit": 50,
      "sort": { "field": "created_at", "direction": "desc" }
    }

    Field constraints:
    - Allowed base fields are these columns: #{@schema[:columns].keys.sort.join(', ')}
    - Associated fields must use "association.column" (example: "user.email")
    - Allowed sort directions: asc, desc
    - For operator "between", value must be an array of two values
    - For operator "in", value must be an array

    Schema summary:
    #{JSON.pretty_generate(@schema)}
  PROMPT
end

#user_prompt(natural_language_prompt) ⇒ Object 



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# File 'lib/ai_record_finder/prompt_builder.rb', line 47

def user_prompt(natural_language_prompt)
  natural_language_prompt.to_s.strip
end