Module: Legate::Web::AgentGeneratorRoutes

Defined in:
lib/legate/web/routes/agent_generator_routes.rb

Overview

Routes for AI-powered agent code generation. Delegates to Legate::Generators::AgentGenerator so the web path shares the exact generation logic AND the CodeValidator safety check used by the CLI (the route must not reimplement either).

Class Method Summary collapse

Class Method Details

.registered(app) ⇒ Object 



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# File 'lib/legate/web/routes/agent_generator_routes.rb', line 14

def self.registered(app)
  # POST /agents/generate - Generate agent definition code from natural language
  app.post '/agents/generate' do
    content_type :json

    begin
      request.body.rewind
      body = JSON.parse(request.body.read)
    rescue JSON::ParserError => e
      halt 400, json(error: "Invalid JSON: #{e.message}")
    end

    begin
      result = Legate::Generators::AgentGenerator.generate(description: body['description'].to_s.strip)
      logger.info("Successfully generated agent code (suggested name: #{result[:suggested_name]})")
      json(result)
    rescue Legate::Generators::AgentGenerator::ApiKeyMissingError => e
      halt 503, json(error: e.message)
    rescue Legate::Generators::AgentGenerator::ApiError => e
      logger.error("Gemini API error during agent generation: #{e.message}")
      halt 503, json(error: 'AI service communication error. Please try again.')
    rescue Legate::Generators::AgentGenerator::GenerationError => e
      # Validation failures, empty responses, and unsafe generated code
      # rejected by CodeValidator.
      halt 400, json(error: e.message)
    rescue StandardError => e
      logger.error("Unexpected error during agent generation: #{e.class} - #{e.message}")
      halt 500, json(error: 'Generation failed. Please try again.')
    end
  end

  # POST /agents/generate/definition - Generate a STRUCTURED agent definition
  # (the same fields the create form accepts) from natural language. The agent
  # can then be registered live via POST /agents — no file download/restart.
  # Also returns derived .rb (via AgentCodeGenerator, no extra LLM call) so the
  # power-user "Export .rb" still works.
  app.post '/agents/generate/definition' do
    content_type :json

    begin
      request.body.rewind
      body = JSON.parse(request.body.read)
    rescue JSON::ParserError => e
      halt 400, json(error: "Invalid JSON: #{e.message}")
    end

    begin
      result = Legate::Generators::AgentGenerator.generate_definition(description: body['description'].to_s.strip)
      code = Legate::AgentCodeGenerator.generate(result)
      logger.info("Successfully generated agent definition (name: #{result[:name]})")
      json(result.merge(code: code))
    rescue Legate::Generators::AgentGenerator::ApiKeyMissingError => e
      halt 503, json(error: e.message)
    rescue Legate::Generators::AgentGenerator::ApiError => e
      logger.error("Gemini API error during agent definition generation: #{e.message}")
      halt 503, json(error: 'AI service communication error. Please try again.')
    rescue Legate::Generators::AgentGenerator::GenerationError => e
      halt 400, json(error: e.message)
    rescue StandardError => e
      logger.error("Unexpected error during agent definition generation: #{e.class} - #{e.message}")
      halt 500, json(error: 'Generation failed. Please try again.')
    end
  end
end