Claude: new prompt converter + non-streaming tools

public/scripts/tool-calling.js

@@ -339,10 +339,9 @@ export class ToolManager {
 
         const supportedSources = [
             chat_completion_sources.OPENAI,
-            //chat_completion_sources.COHERE,
             chat_completion_sources.CUSTOM,
             chat_completion_sources.MISTRALAI,
-            //chat_completion_sources.CLAUDE,
+            chat_completion_sources.CLAUDE,
             chat_completion_sources.OPENROUTER,
             chat_completion_sources.GROQ,
         ];
@@ -372,18 +371,29 @@ export class ToolManager {
         }
 
         // Parsed tool calls from non-streaming data
-        if (!Array.isArray(data?.choices)) {
+        if (Array.isArray(data?.choices)) {
-            return;
-        }
-
             // Find a choice with 0-index
             const choice = data.choices.find(choice => choice.index === 0);
 
-        if (!choice) {
+            if (choice) {
-            return;
+                return choice.message.tool_calls;
+            }
         }
 
-        return choice.message.tool_calls;
+        if (Array.isArray(data?.content)) {
+            // Claude tool calls to OpenAI tool calls
+            const content = data.content.filter(c => c.type === 'tool_use').map(c => {
+                return {
+                    id: c.id,
+                    function: {
+                        name: c.name,
+                        arguments: c.input,
+                    },
+                };
+            });
+
+            return content;
+        }
     }
 
     /**
@@ -407,7 +417,6 @@ export class ToolManager {
             chat_completion_sources.GROQ,
         ];
 
-        if (oaiCompatibleSources.includes(oai_settings.chat_completion_source)) {
         if (!Array.isArray(toolCalls)) {
             return result;
         }
@@ -445,21 +454,6 @@ export class ToolManager {
             };
             result.invocations.push(invocation);
         }
-        }
-
-        /*
-        if ([chat_completion_sources.CLAUDE].includes(oai_settings.chat_completion_source)) {
-            if (!Array.isArray(data?.content)) {
-                return;
-            }
-
-            for (const content of data.content) {
-                if (content.type === 'tool_use') {
-                    const args = { name: content.name, arguments: JSON.stringify(content.input) };
-                }
-            }
-        }
-        */
 
         return result;
     }
@@ -491,6 +485,9 @@ export class ToolManager {
      * @param {ToolInvocation[]} invocations Successful tool invocations
      */
     static saveFunctionToolInvocations(invocations) {
+        if (!Array.isArray(invocations) || invocations.length === 0) {
+            return;
+        }
         const message = {
             name: systemUserName,
             force_avatar: system_avatar,

src/endpoints/backends/chat-completions.js

@@ -124,7 +124,6 @@ async function sendClaudeRequest(request, response) {
         } else {
             delete requestBody.system;
         }
-        /*
         if (Array.isArray(request.body.tools) && request.body.tools.length > 0) {
             // Claude doesn't do prefills on function calls, and doesn't allow empty messages
             if (convertedPrompt.messages.length && convertedPrompt.messages[convertedPrompt.messages.length - 1].role === 'assistant') {
@@ -137,7 +136,6 @@ async function sendClaudeRequest(request, response) {
                 .map(tool => tool.function)
                 .map(fn => ({ name: fn.name, description: fn.description, input_schema: fn.parameters }));
         }
-        */
         if (enableSystemPromptCache) {
             additionalHeaders['anthropic-beta'] = 'prompt-caching-2024-07-31';
         }

src/prompt-converters.js

@@ -118,8 +118,27 @@ function convertClaudeMessages(messages, prefillString, useSysPrompt, humanMsgFi
             });
         }
     }
+
     // Now replace all further messages that have the role 'system' with the role 'user'. (or all if we're not using one)
     messages.forEach((message) => {
+        if (message.role === 'assistant' && message.tool_calls) {
+            message.content = message.tool_calls.map((tc) => ({
+                type: 'tool_use',
+                id: tc.id,
+                name: tc.function.name,
+                input: tc.function.arguments,
+            }));
+        }
+
+        if (message.role === 'tool') {
+            message.role = 'user';
+            message.content = [{
+                type: 'tool_result',
+                tool_use_id: message.tool_call_id,
+                content: message.content,
+            }];
+        }
+
         if (message.role === 'system') {
             if (userName && message.name === 'example_user') {
                 message.content = `${userName}: ${message.content}`;
@@ -128,13 +147,80 @@ function convertClaudeMessages(messages, prefillString, useSysPrompt, humanMsgFi
                 message.content = `${charName}: ${message.content}`;
             }
             message.role = 'user';
+
+            // Delete name here so it doesn't get added later
+            delete message.name;
         }
+
+        // Convert everything to an array of it would be easier to work with
+        if (typeof message.content === 'string') {
+            // Take care of name properties since claude messages don't support them
+            if (message.name) {
+                message.content = `${message.name}: ${message.content}`;
+            }
+
+            message.content = [{ type: 'text', text: message.content }];
+        } else if (Array.isArray(message.content)) {
+            message.content = message.content.map((content) => {
+                if (content.type === 'image_url') {
+                    const imageEntry = content?.image_url;
+                    const imageData = imageEntry?.url;
+                    const mimeType = imageData?.split(';')?.[0].split(':')?.[1];
+                    const base64Data = imageData?.split(',')?.[1];
+
+                    return {
+                        type: 'image',
+                        source: {
+                            type: 'base64',
+                            media_type: mimeType,
+                            data: base64Data,
+                        },
+                    };
+                }
+
+                if (content.type === 'text') {
+                    if (message.name) {
+                        content.text = `${message.name}: ${content.text}`;
+                    }
+
+                    return content;
+                }
+
+                return content;
             });
+        }
+
+        // Remove offending properties
+        delete message.name;
+        delete message.tool_calls;
+        delete message.tool_call_id;
+    });
+
+    // Images in assistant messages should be moved to the next user message
+    for (let i = 0; i < messages.length; i++) {
+        if (messages[i].role === 'assistant' && messages[i].content.some(c => c.type === 'image')) {
+            // Find the next user message
+            let j = i + 1;
+            while (j < messages.length && messages[j].role !== 'user') {
+                j++;
+            }
+
+            // Move the images
+            if (j >= messages.length) {
+                // If there is no user message after the assistant message, add a new one
+                messages.splice(i + 1, 0, { role: 'user', content: [] });
+            }
+
+            messages[j].content.push(...messages[i].content.filter(c => c.type === 'image'));
+            messages[i].content = messages[i].content.filter(c => c.type !== 'image');
+        }
+    }
 
     // Shouldn't be conditional anymore, messages api expects the last role to be user unless we're explicitly prefilling
     if (prefillString) {
         messages.push({
             role: 'assistant',
+            // Dangling whitespace are not allowed for prefilling
             content: prefillString.trimEnd(),
         });
     }
@@ -143,50 +229,11 @@ function convertClaudeMessages(messages, prefillString, useSysPrompt, humanMsgFi
     // Also handle multi-modality, holy slop.
     let mergedMessages = [];
     messages.forEach((message) => {
-        const imageEntry = message.content?.[1]?.image_url;
-        const imageData = imageEntry?.url;
-        const mimeType = imageData?.split(';')?.[0].split(':')?.[1];
-        const base64Data = imageData?.split(',')?.[1];
-
-        // Take care of name properties since claude messages don't support them
-        if (message.name) {
-            if (Array.isArray(message.content)) {
-                message.content[0].text = `${message.name}: ${message.content[0].text}`;
-            } else {
-                message.content = `${message.name}: ${message.content}`;
-            }
-            delete message.name;
-        }
-
         if (mergedMessages.length > 0 && mergedMessages[mergedMessages.length - 1].role === message.role) {
-            if (Array.isArray(message.content)) {
+            mergedMessages[mergedMessages.length - 1].content.push(...message.content);
-                if (Array.isArray(mergedMessages[mergedMessages.length - 1].content)) {
-                    mergedMessages[mergedMessages.length - 1].content[0].text += '\n\n' + message.content[0].text;
-                } else {
-                    mergedMessages[mergedMessages.length - 1].content += '\n\n' + message.content[0].text;
-                }
-            } else {
-                if (Array.isArray(mergedMessages[mergedMessages.length - 1].content)) {
-                    mergedMessages[mergedMessages.length - 1].content[0].text += '\n\n' + message.content;
-                } else {
-                    mergedMessages[mergedMessages.length - 1].content += '\n\n' + message.content;
-                }
-            }
         } else {
             mergedMessages.push(message);
         }
-        if (imageData) {
-            mergedMessages[mergedMessages.length - 1].content = [
-                { type: 'text', text: mergedMessages[mergedMessages.length - 1].content[0]?.text || mergedMessages[mergedMessages.length - 1].content },
-                {
-                    type: 'image', source: {
-                        type: 'base64',
-                        media_type: mimeType,
-                        data: base64Data,
-                    },
-                },
-            ];
-        }
     });
 
     return { messages: mergedMessages, systemPrompt: systemPrompt.trim() };