FIX: Llm selector / forced tools / search tool (#862)

* FIX: Llm selector / forced tools / search tool


This fixes a few issues:

1. When search was not finding any semantic results we would break the tool
2. Gemin / Anthropic models did not implement forced tools previously despite it being an API option
3. Mechanics around displaying llm selector were not right. If you disabled LLM selector server side persona PM did not work correctly.
4. Disabling native tools for anthropic model moved out of a site setting. This deliberately does not migrate cause this feature is really rare to need now, people who had it set probably did not need it.
5. Updates anthropic model names to latest release

* linting

* fix a couple of tests I missed

* clean up conditional

app/models/llm_model.rb

@@ -19,6 +19,10 @@ class LlmModel < ActiveRecord::Base
       aws_bedrock: {
         access_key_id: :text,
         region: :text,
+        disable_native_tools: :checkbox,
+      },
+      anthropic: {
+        disable_native_tools: :checkbox,
       },
       open_ai: {
         organization: :text,

assets/javascripts/discourse/connectors/composer-fields/persona-llm-selector.gjs

@@ -15,7 +15,7 @@ function isBotMessage(composer, currentUser) {
     const reciepients = composer.targetRecipients.split(",");
 
     return currentUser.ai_enabled_chat_bots
-      .filter((bot) => !bot.is_persona)
+      .filter((bot) => bot.username)
       .any((bot) => reciepients.any((username) => username === bot.username));
   }
   return false;
@@ -43,7 +43,7 @@ export default class BotSelector extends Component {
   constructor() {
     super(...arguments);
 
-    if (this.botOptions && this.composer) {
+    if (this.botOptions && this.botOptions.length && this.composer) {
       let personaId = this.preferredPersonaStore.getObject("id");
 
       this._value = this.botOptions[0].id;
@@ -57,19 +57,29 @@ export default class BotSelector extends Component {
       this.composer.metaData = { ai_persona_id: this._value };
       this.setAllowLLMSelector();
 
-      let llm = this.preferredLlmStore.getObject("id");
+      if (this.hasLlmSelector) {
+        let llm = this.preferredLlmStore.getObject("id");
 
-      const llmOption =
-        this.llmOptions.find((innerLlmOption) => innerLlmOption.id === llm) ||
-        this.llmOptions[0];
+        const llmOption =
+          this.llmOptions.find((innerLlmOption) => innerLlmOption.id === llm) ||
+          this.llmOptions[0];
 
-      llm = llmOption.id;
+        if (llmOption) {
+          llm = llmOption.id;
+        } else {
+          llm = "";
+        }
 
-      if (llm) {
-        next(() => {
-          this.currentLlm = llm;
-        });
+        if (llm) {
+          next(() => {
+            this.currentLlm = llm;
+          });
+        }
       }
+
+      next(() => {
+        this.resetTargetRecipients();
+      });
     }
   }
 
@@ -77,9 +87,19 @@ export default class BotSelector extends Component {
     return this.args?.outletArgs?.model;
   }
 
+  get hasLlmSelector() {
+    return this.currentUser.ai_enabled_chat_bots.any((bot) => !bot.is_persona);
+  }
+
   get botOptions() {
     if (this.currentUser.ai_enabled_personas) {
-      return this.currentUser.ai_enabled_personas.map((persona) => {
+      let enabledPersonas = this.currentUser.ai_enabled_personas;
+
+      if (!this.hasLlmSelector) {
+        enabledPersonas = enabledPersonas.filter((persona) => persona.username);
+      }
+
+      return enabledPersonas.map((persona) => {
         return {
           id: persona.id,
           name: persona.name,
@@ -106,6 +126,11 @@ export default class BotSelector extends Component {
   }
 
   setAllowLLMSelector() {
+    if (!this.hasLlmSelector) {
+      this.allowLLMSelector = false;
+      return;
+    }
+
     const persona = this.currentUser.ai_enabled_personas.find(
       (innerPersona) => innerPersona.id === this._value
     );

config/locales/client.en.yml

@@ -329,6 +329,7 @@ en:
           organization: "Optional OpenAI Organization ID"
           disable_system_prompt: "Disable system message in prompts"
           enable_native_tool: "Enable native tool support"
+          disable_native_tools: "Disable native tool support (use XML based tools)"
 
       related_topics:
         title: "Related Topics"

config/locales/server.en.yml

@@ -49,7 +49,6 @@ en:
 
     ai_openai_embeddings_url: "Custom URL used for the OpenAI embeddings API. (in the case of Azure it can be: https://COMPANY.openai.azure.com/openai/deployments/DEPLOYMENT/embeddings?api-version=2023-05-15)"
     ai_openai_api_key: "API key for OpenAI API. ONLY used for embeddings and Dall-E. For GPT use the LLM config tab"
-    ai_anthropic_native_tool_call_models: "List of models that will use native tool calls vs legacy XML based tools."
     ai_hugging_face_tei_endpoint: URL where the API is running for the Hugging Face text embeddings inference
     ai_hugging_face_tei_api_key: API key for Hugging Face text embeddings inference
 

config/settings.yml

@@ -125,16 +125,6 @@ discourse_ai:
   ai_anthropic_api_key:
     default: ""
     hidden: true
-  ai_anthropic_native_tool_call_models:
-    type: list
-    list_type: compact
-    default: "claude-3-sonnet|claude-3-haiku"
-    allow_any: false
-    choices:
-      - claude-3-opus
-      - claude-3-sonnet
-      - claude-3-haiku
-      - claude-3-5-sonnet
   ai_cohere_api_key:
     default: ""
     hidden: true

lib/ai_bot/entry_point.rb

@@ -145,6 +145,8 @@ module DiscourseAi
 
           persona_users = AiPersona.persona_users(user: scope.user)
           if persona_users.present?
+            persona_users.filter! { |persona_user| persona_user[:username].present? }
+
             bots_map.concat(
               persona_users.map do |persona_user|
                 {

lib/completions/dialects/claude.rb

@@ -61,7 +61,7 @@ module DiscourseAi
         end
 
         def native_tool_support?
-          SiteSetting.ai_anthropic_native_tool_call_models_map.include?(llm_model.name)
+          !llm_model.lookup_custom_param("disable_native_tools")
         end
 
         private

lib/completions/endpoints/anthropic.rb

@@ -27,7 +27,7 @@ module DiscourseAi
             when "claude-3-opus"
               "claude-3-opus-20240229"
             when "claude-3-5-sonnet"
-              "claude-3-5-sonnet-20240620"
+              "claude-3-5-sonnet-latest"
             else
               llm_model.name
             end
@@ -70,7 +70,12 @@ module DiscourseAi
 
           payload[:system] = prompt.system_prompt if prompt.system_prompt.present?
           payload[:stream] = true if @streaming_mode
-          payload[:tools] = prompt.tools if prompt.has_tools?
+          if prompt.has_tools?
+            payload[:tools] = prompt.tools
+            if dialect.tool_choice.present?
+              payload[:tool_choice] = { type: "tool", name: dialect.tool_choice }
+            end
+          end
 
           payload
         end

lib/completions/endpoints/aws_bedrock.rb

@@ -61,7 +61,7 @@ module DiscourseAi
             when "claude-3-opus"
               "anthropic.claude-3-opus-20240229-v1:0"
             when "claude-3-5-sonnet"
-              "anthropic.claude-3-5-sonnet-20240620-v1:0"
+              "anthropic.claude-3-5-sonnet-20241022-v2:0"
             else
               llm_model.name
             end
@@ -83,7 +83,13 @@ module DiscourseAi
 
           payload = default_options(dialect).merge(model_params).merge(messages: prompt.messages)
           payload[:system] = prompt.system_prompt if prompt.system_prompt.present?
-          payload[:tools] = prompt.tools if prompt.has_tools?
+
+          if prompt.has_tools?
+            payload[:tools] = prompt.tools
+            if dialect.tool_choice.present?
+              payload[:tool_choice] = { type: "tool", name: dialect.tool_choice }
+            end
+          end
 
           payload
         end

lib/completions/endpoints/gemini.rb

@@ -67,7 +67,16 @@ module DiscourseAi
           } if prompt[:system_instruction].present?
           if tools.present?
             payload[:tools] = tools
-            payload[:tool_config] = { function_calling_config: { mode: "AUTO" } }
+
+            function_calling_config = { mode: "AUTO" }
+            if dialect.tool_choice.present?
+              function_calling_config = {
+                mode: "ANY",
+                allowed_function_names: [dialect.tool_choice],
+              }
+            end
+
+            payload[:tool_config] = { function_calling_config: function_calling_config }
           end
           payload[:generationConfig].merge!(model_params) if model_params.present?
           payload
@@ -88,8 +97,10 @@ module DiscourseAi
             end
           response_h = parsed.dig(:candidates, 0, :content, :parts, 0)
 
-          @has_function_call ||= response_h.dig(:functionCall).present?
-          @has_function_call ? response_h[:functionCall] : response_h.dig(:text)
+          if response_h
+            @has_function_call ||= response_h.dig(:functionCall).present?
+            @has_function_call ? response_h.dig(:functionCall) : response_h.dig(:text)
+          end
         end
 
         def partials_from(decoded_chunk)

lib/embeddings/semantic_search.rb

@@ -79,7 +79,9 @@ module DiscourseAi
         search = Search.new(query, { guardian: guardian })
         search_term = search.term
 
-        return [] if search_term.nil? || search_term.length < SiteSetting.min_search_term_length
+        if search_term.blank? || search_term.length < SiteSetting.min_search_term_length
+          return Post.none
+        end
 
         search_embedding = hyde ? hyde_embedding(search_term) : embedding(search_term)
 

spec/lib/completions/dialects/claude_spec.rb

@@ -35,7 +35,8 @@ RSpec.describe DiscourseAi::Completions::Dialects::Claude do
     end
 
     it "can properly translate a prompt (legacy tools)" do
-      SiteSetting.ai_anthropic_native_tool_call_models = ""
+      llm_model.provider_params["disable_native_tools"] = true
+      llm_model.save!
 
       tools = [
         {
@@ -88,8 +89,6 @@ RSpec.describe DiscourseAi::Completions::Dialects::Claude do
     end
 
     it "can properly translate a prompt (native tools)" do
-      SiteSetting.ai_anthropic_native_tool_call_models = "claude-3-opus"
-
       tools = [
         {
           name: "echo",

spec/lib/completions/endpoints/anthropic_spec.rb

@@ -48,7 +48,6 @@ RSpec.describe DiscourseAi::Completions::Endpoints::Anthropic do
   end
 
   it "does not eat spaces with tool calls" do
-    SiteSetting.ai_anthropic_native_tool_call_models = "claude-3-opus"
     body = <<~STRING
     event: message_start
     data: {"type":"message_start","message":{"id":"msg_01Ju4j2MiGQb9KV9EEQ522Y3","type":"message","role":"assistant","model":"claude-3-haiku-20240307","content":[],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1293,"output_tokens":1}}   }
@@ -195,8 +194,6 @@ RSpec.describe DiscourseAi::Completions::Endpoints::Anthropic do
   end
 
   it "supports non streaming tool calls" do
-    SiteSetting.ai_anthropic_native_tool_call_models = "claude-3-opus"
-
     tool = {
       name: "calculate",
       description: "calculate something",

spec/lib/completions/endpoints/aws_bedrock_spec.rb

@@ -28,7 +28,9 @@ RSpec.describe DiscourseAi::Completions::Endpoints::AwsBedrock do
 
   describe "function calling" do
     it "supports old school xml function calls" do
-      SiteSetting.ai_anthropic_native_tool_call_models = ""
+      model.provider_params["disable_native_tools"] = true
+      model.save!
+
       proxy = DiscourseAi::Completions::Llm.proxy("custom:#{model.id}")
 
       incomplete_tool_call = <<~XML.strip

spec/lib/modules/ai_bot/tools/search_spec.rb

@@ -138,6 +138,22 @@ RSpec.describe DiscourseAi::AiBot::Tools::Search do
 
         expect(results[:args]).to eq({ search_query: "hello world, sam", status: "public" })
         expect(results[:rows].length).to eq(1)
+
+        # it also works with no query
+        search =
+          described_class.new(
+            { order: "likes", user: "sam", status: "public", search_query: "a" },
+            llm: llm,
+            bot_user: bot_user,
+          )
+
+        # results will be expanded by semantic search, but it will find nothing
+        results =
+          DiscourseAi::Completions::Llm.with_prepared_responses(["<ai>#{query}</ai>"]) do
+            search.invoke(&progress_blk)
+          end
+
+        expect(results[:rows].length).to eq(0)
       end
     end
 

spec/system/ai_bot/ai_bot_helper_spec.rb

@@ -22,13 +22,35 @@ RSpec.describe "AI chat channel summarization", type: :system, js: true do
     group.add(user)
     group.save
 
+    allowed_persona = AiPersona.last
+    allowed_persona.update!(allowed_group_ids: [group.id], enabled: true)
+
     visit "/latest"
     expect(page).to have_selector(".ai-bot-button")
     find(".ai-bot-button").click
 
-    # composer is open
+    find(".gpt-persona").click
+    expect(page).to have_css(".gpt-persona ul li", count: 1)
+
+    find(".llm-selector").click
+    expect(page).to have_css(".llm-selector ul li", count: 2)
+
     expect(page).to have_selector(".d-editor-container")
 
+    # lets disable bots but still allow 1 persona
+    allowed_persona.create_user!
+    allowed_persona.update!(default_llm: "custom:#{gpt_4.id}")
+
+    gpt_4.update!(enabled_chat_bot: false)
+    gpt_3_5_turbo.update!(enabled_chat_bot: false)
+
+    visit "/latest"
+    find(".ai-bot-button").click
+
+    find(".gpt-persona").click
+    expect(page).to have_css(".gpt-persona ul li", count: 1)
+    expect(page).not_to have_selector(".llm-selector")
+
     SiteSetting.ai_bot_add_to_header = false
     visit "/latest"
     expect(page).not_to have_selector(".ai-bot-button")