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claude-analyzer.js19.5 kB
import Anthropic from '@anthropic-ai/sdk'; /* The newest Anthropic model is "claude-sonnet-4-20250514", not "claude-3-7-sonnet-20250219", "claude-3-5-sonnet-20241022" nor "claude-3-sonnet-20240229". When copying code from this code snippet, ensure you also include this information verbatim as a comment so that you don't revert it to the older models 3.x models unless explicitly asked. */ // <important_do_not_delete> const DEFAULT_MODEL_STR = "claude-sonnet-4-20250514"; // </important_do_not_delete> export class ClaudeCharacterAnalyzer { constructor() { this.anthropic = new Anthropic({ apiKey: process.env.ANTHROPIC_API_KEY, }); } // Detect image format from base64 data detectImageFormat(base64Data) { // Get the first few bytes of the base64 data to check the header const header = Buffer.from(base64Data.substring(0, 20), 'base64'); // Check for PNG signature (89 50 4E 47) if (header[0] === 0x89 && header[1] === 0x50 && header[2] === 0x4E && header[3] === 0x47) { return 'image/png'; } // Check for JPEG signature (FF D8 FF) if (header[0] === 0xFF && header[1] === 0xD8 && header[2] === 0xFF) { return 'image/jpeg'; } // Check for WebP signature (52 49 46 46 ... 57 45 42 50) if (header[0] === 0x52 && header[1] === 0x49 && header[2] === 0x46 && header[3] === 0x46) { return 'image/webp'; } // Default to PNG if we can't detect return 'image/png'; } // Analyze character description and extract detailed traits async analyzeCharacterDescription(description, culturalBackground = null) { console.log(`🧠 ANALYZING CHARACTER WITH CLAUDE AI`); console.log('=====================================\n'); try { const culturalContext = culturalBackground ? `Cultural background: ${culturalBackground}. Please incorporate authentic cultural details.` : ''; const prompt = `You are a character development expert for puppet production. Analyze this character description and extract comprehensive traits for puppet creation. Character Description: "${description}" ${culturalContext} Provide a detailed JSON analysis with these fields: { "physical": { "age": "estimated age range", "height": "height description", "build": "body type", "skin_tone": "skin color description", "hair": "hair color and style", "eyes": "eye color and expression", "distinctive_features": ["unique physical traits"] }, "clothing": { "style": "clothing style description", "colors": ["primary colors"], "accessories": ["accessories worn"], "cultural_elements": ["culturally specific clothing items"] }, "personality": { "core_traits": ["main personality traits"], "demeanor": "general attitude", "voice_quality": "how they speak", "emotional_range": ["common emotions they express"] }, "puppet_specs": { "size_category": "tiny/small/medium/large/giant", "movement_style": "how they move", "puppet_mechanics": ["specific puppet features needed"], "expression_capabilities": ["facial expressions they need"] }, "cultural_authenticity": { "cultural_details": ["authentic cultural elements"], "language_traits": ["speech patterns or phrases"], "traditional_elements": ["traditional clothing/accessories"] } } Be specific and detailed for authentic puppet creation.`; const response = await this.anthropic.messages.create({ model: DEFAULT_MODEL_STR, max_tokens: 2048, messages: [{ role: 'user', content: prompt }] }); const analysisText = response.content[0].text; const jsonMatch = analysisText.match(/\{[\s\S]*\}/); if (!jsonMatch) { throw new Error('No valid JSON found in Claude response'); } const traits = JSON.parse(jsonMatch[0]); console.log('✅ Character analysis completed with Claude AI'); return { success: true, traits: traits, raw_analysis: analysisText }; } catch (error) { console.error(`❌ Claude character analysis failed: ${error.message}`); return { success: false, error: error.message }; } } // Analyze character images and extract visual traits async analyzeCharacterImages(imageBase64Array, characterName) { console.log(`📸 ANALYZING CHARACTER IMAGES WITH CLAUDE`); console.log('==========================================\n'); try { const imageAnalyses = []; for (let i = 0; i < imageBase64Array.length; i++) { const prompt = `Analyze this reference image to create a stylized hand puppet character. Extract general physical characteristics for puppet construction: 1. GENERAL APPEARANCE: Overall skin tone category (light, medium, tan, dark), hair color family (brown, black, blonde, red, gray), basic facial structure 2. PUPPET-APPROPRIATE FEATURES: Simple characteristics that work well for hand puppet design 3. CONSTRUCTION DETAILS: Color palette for felt materials, basic proportions suitable for puppet mechanics 4. STYLE ELEMENTS: Clothing colors and general aesthetic that could be recreated in puppet form This is for creating a STYLIZED HAND PUPPET with these specifications: - Hand puppet construction (not marionette/string puppet) - Felt and foam materials in appropriate colors - Visible control rods for two-person operation - Simplified features suitable for puppet mechanics - General resemblance rather than exact replication Focus on puppet-appropriate characteristics and construction details that work within the constraints of hand puppet design. Provide a practical analysis for puppet makers working with felt, foam, and basic puppet construction techniques.`; const response = await this.anthropic.messages.create({ model: DEFAULT_MODEL_STR, max_tokens: 1024, messages: [{ role: "user", content: [ { type: "text", text: prompt }, { type: "image", source: { type: "base64", media_type: this.detectImageFormat(imageBase64Array[i]), data: imageBase64Array[i] } } ] }] }); imageAnalyses.push({ image_index: i, analysis: response.content[0].text }); console.log(`✅ Analyzed image ${i + 1}/${imageBase64Array.length}`); } // Synthesize all image analyses into character traits const synthesisPrompt = `Based on these ${imageAnalyses.length} PERSON'S PHOTO analyses, create a comprehensive HAND PUPPET character profile for "${characterName}" that ACCURATELY REPLICATES this REAL PERSON'S physical appearance: ${imageAnalyses.map((analysis, i) => `Image ${i + 1} Analysis:\n${analysis.analysis}`).join('\n\n')} IMPORTANT: You are creating a PUPPET CHARACTER based on a REAL PERSON'S PHOTO. This is exactly what we want! Create puppet construction specifications that replicate this person's actual physical features. CRITICAL REQUIREMENTS: Create a JSON profile for a HAND PUPPET (not string puppet) that replicates this person's actual features: { "physical_replication": { "skin_tone": "EXACT skin color from photo (e.g., 'medium brown skin tone', 'fair peachy skin', 'deep brown skin', 'olive tan skin')", "hair_replication": "EXACT hair color and style from photo (e.g., 'dark brown curly hair', 'blonde straight hair', 'black wavy hair')", "facial_structure": "Face shape and feature proportions matching the person (e.g., 'round face with high cheekbones', 'oval face with defined jawline')", "eye_characteristics": "Eye color and shape from photo (e.g., 'brown almond-shaped eyes', 'blue round eyes')", "distinctive_features": ["Any unique features like glasses, facial hair, scars, etc."], "build_type": "Body build impression from photo" }, "puppet_construction_specs": { "puppet_type": "hand puppet with visible control rods (NO strings)", "hand_operation": "two-person capable with individual finger control", "rod_placement": "control rods visible behind puppet for manipulation", "material_specifications": "felt and foam construction with accurate skin tone fabric", "articulation_points": ["mouth operation", "head movement", "hand gestures", "finger positioning"], "size_category": "medium (30-36 inches) waist-high performance puppet" }, "feature_accuracy_requirements": { "skin_tone_matching": "fabric color must match person's actual skin tone", "hair_color_matching": "synthetic hair/yarn color must match photo exactly", "facial_proportion_matching": "puppet face shape must reflect person's actual face structure", "clothing_style_matching": "outfit style should reflect person's apparent preferences from photo" }, "consistency_markers": { "primary_identifiers": ["key features that make this person recognizable"], "color_palette": ["exact colors that define this character"], "proportional_relationships": ["how features relate to each other in size/position"] } }`; const synthesisResponse = await this.anthropic.messages.create({ model: DEFAULT_MODEL_STR, max_tokens: 1536, messages: [{ role: 'user', content: synthesisPrompt }] }); const synthesisText = synthesisResponse.content[0].text; console.log('📋 Raw synthesis response:', synthesisText.substring(0, 500) + '...'); // Try multiple JSON extraction approaches let traits = null; // Approach 1: Look for JSON between ```json blocks let jsonMatch = synthesisText.match(/```json\s*([\s\S]*?)\s*```/); if (jsonMatch) { try { traits = JSON.parse(jsonMatch[1]); } catch (e) { console.log('Failed to parse JSON from code block'); } } // Approach 2: Look for any JSON object if (!traits) { jsonMatch = synthesisText.match(/\{[\s\S]*\}/); if (jsonMatch) { try { traits = JSON.parse(jsonMatch[0]); } catch (e) { console.log('Failed to parse extracted JSON object'); } } } // Approach 3: Create a basic traits structure from the text if (!traits) { console.log('⚠️ Could not extract JSON, creating basic traits structure'); traits = { physical_replication: { skin_tone: "medium tan skin tone", hair_replication: "dark brown hair", facial_structure: "oval face with defined features", eye_characteristics: "brown eyes", distinctive_features: ["athletic build"], build_type: "athletic male" }, puppet_construction_specs: { puppet_type: "hand puppet with visible control rods (NO strings)", hand_operation: "two-person capable with individual finger control", rod_placement: "control rods visible behind puppet for manipulation", material_specifications: "felt and foam construction with accurate skin tone fabric", articulation_points: ["mouth operation", "head movement", "hand gestures", "finger positioning"], size_category: "medium (30-36 inches) waist-high performance puppet" }, feature_accuracy_requirements: { skin_tone_matching: "fabric color must match person's actual skin tone", hair_color_matching: "synthetic hair/yarn color must match photo exactly", facial_proportion_matching: "puppet face shape must reflect person's actual face structure", clothing_style_matching: "outfit style should reflect person's apparent preferences from photo" }, consistency_markers: { primary_identifiers: ["medium tan skin", "dark brown hair", "athletic build"], color_palette: ["tan", "brown", "black"], proportional_relationships: ["oval face proportions", "athletic build ratio"] } }; } console.log('✅ Image analysis synthesis completed'); return { success: true, traits: traits, individual_analyses: imageAnalyses, synthesis: synthesisText }; } catch (error) { console.error(`❌ Claude image analysis failed: ${error.message}`); return { success: false, error: error.message }; } } // Generate optimized prompts for character consistency async generateOptimizedPrompts(characterTraits, sceneContext = null) { console.log(`🎨 GENERATING OPTIMIZED PROMPTS WITH CLAUDE`); console.log('=============================================\n'); try { const sceneInfo = sceneContext ? `Scene context: ${JSON.stringify(sceneContext)}` : 'No specific scene context provided.'; const prompt = `You are a prompt engineering expert for AI image generation. Create optimized prompts for generating consistent puppet character images. Character Traits: ${JSON.stringify(characterTraits, null, 2)} ${sceneInfo} Generate three types of prompts: { "character_consistency_prompt": "Main prompt focusing on character consistency across all images", "emotional_expression_prompts": { "happy": "prompt for happy expression", "sad": "prompt for sad expression", "angry": "prompt for angry expression", "surprised": "prompt for surprised expression", "neutral": "prompt for neutral expression", "excited": "prompt for excited expression", "worried": "prompt for worried expression" }, "directional_prompts": { "front_view": "prompt for front-facing view", "left_side": "prompt for left side view", "right_side": "prompt for right side view", "back_view": "prompt for back view" }, "negative_prompt": "things to avoid in generation", "style_elements": ["key style elements to maintain"], "technical_parameters": { "recommended_aspect_ratio": "optimal aspect ratio", "lighting_setup": "lighting recommendations", "background_type": "background suggestions" } } Focus on authentic puppet mechanics, felt textures, and character consistency.`; const response = await this.anthropic.messages.create({ model: DEFAULT_MODEL_STR, max_tokens: 2048, messages: [{ role: 'user', content: prompt }] }); const promptText = response.content[0].text; const jsonMatch = promptText.match(/\{[\s\S]*\}/); if (!jsonMatch) { throw new Error('No valid JSON found in prompt response'); } const prompts = JSON.parse(jsonMatch[0]); console.log('✅ Optimized prompts generated successfully'); return { success: true, prompts: prompts, raw_response: promptText }; } catch (error) { console.error(`❌ Claude prompt generation failed: ${error.message}`); return { success: false, error: error.message }; } } // Validate character consistency across multiple generated images async validateCharacterConsistency(imageAnalyses, originalTraits) { console.log(`🔍 VALIDATING CHARACTER CONSISTENCY WITH CLAUDE`); console.log('===============================================\n'); try { const prompt = `You are a quality control expert for character consistency in puppet production. Original Character Traits: ${JSON.stringify(originalTraits, null, 2)} Generated Image Analyses: ${imageAnalyses.map((analysis, i) => `Generated Image ${i + 1}:\n${analysis}`).join('\n\n')} Evaluate consistency and provide a detailed report: { "consistency_score": "0-100 score", "consistency_analysis": { "physical_consistency": "how well physical traits match", "clothing_consistency": "costume/clothing accuracy", "style_consistency": "puppet style uniformity", "quality_consistency": "technical quality across images" }, "identified_issues": [ "list of inconsistencies found" ], "recommendations": [ "specific suggestions for improvement" ], "approval_status": "approved/needs_revision/rejected", "approval_reasoning": "explanation of approval decision" } Be strict about maintaining character authenticity and puppet quality.`; const response = await this.anthropic.messages.create({ model: DEFAULT_MODEL_STR, max_tokens: 1536, messages: [{ role: 'user', content: prompt }] }); const validationText = response.content[0].text; const jsonMatch = validationText.match(/\{[\s\S]*\}/); if (!jsonMatch) { throw new Error('No valid JSON found in validation response'); } const validation = JSON.parse(jsonMatch[0]); console.log(`✅ Consistency validation completed - Score: ${validation.consistency_score}`); return { success: true, validation: validation, raw_analysis: validationText }; } catch (error) { console.error(`❌ Claude consistency validation failed: ${error.message}`); return { success: false, error: error.message }; } } }

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