# Psycho-Symbolic Reasoner WASM API Plan ## Project: `psycho-symbolic-reasoner-wasm` **Version:** 0.1.0 **License:** MIT/Apache-2.0 **Target:** OpenAI-compatible completion API via WASM --- ## ๐ŸŽฏ Executive Summary Transform the TypeScript psycho-symbolic reasoning engine into a high-performance Rust crate compiled to WASM, exposing an OpenAI-compatible API for seamless integration with existing LLM infrastructure. ### Key Goals: - **10x performance improvement** over JavaScript implementation - **OpenAI API compatibility** for drop-in replacement - **Sub-millisecond reasoning** for cached queries - **Memory-efficient** graph operations in Rust - **Streaming completions** support --- ## ๐Ÿ“ Architecture ### Core Components ```rust // crate structure psycho-symbolic-reasoner/ โ”œโ”€โ”€ Cargo.toml โ”œโ”€โ”€ src/ โ”‚ โ”œโ”€โ”€ lib.rs // WASM entry points โ”‚ โ”œโ”€โ”€ api/ โ”‚ โ”‚ โ”œโ”€โ”€ mod.rs // OpenAI API handlers โ”‚ โ”‚ โ”œโ”€โ”€ completions.rs // /v1/completions endpoint โ”‚ โ”‚ โ”œโ”€โ”€ chat.rs // /v1/chat/completions endpoint โ”‚ โ”‚ โ””โ”€โ”€ embeddings.rs // /v1/embeddings endpoint โ”‚ โ”œโ”€โ”€ reasoning/ โ”‚ โ”‚ โ”œโ”€โ”€ mod.rs // Core reasoning engine โ”‚ โ”‚ โ”œโ”€โ”€ knowledge_graph.rs // Triple-based knowledge โ”‚ โ”‚ โ”œโ”€โ”€ bfs_traversal.rs // Graph traversal algorithms โ”‚ โ”‚ โ”œโ”€โ”€ inference.rs // Logical inference chains โ”‚ โ”‚ โ””โ”€โ”€ patterns.rs // Cognitive pattern recognition โ”‚ โ”œโ”€โ”€ cache/ โ”‚ โ”‚ โ”œโ”€โ”€ mod.rs // High-performance cache โ”‚ โ”‚ โ”œโ”€โ”€ similarity.rs // Jaccard similarity matching โ”‚ โ”‚ โ””โ”€โ”€ eviction.rs // LRU eviction strategy โ”‚ โ””โ”€โ”€ wasm/ โ”‚ โ”œโ”€โ”€ mod.rs // WASM bindings โ”‚ โ””โ”€โ”€ memory.rs // Memory management โ”œโ”€โ”€ benches/ โ”‚ โ””โ”€โ”€ reasoning_bench.rs // Performance benchmarks โ””โ”€โ”€ tests/ โ””โ”€โ”€ integration_tests.rs // API compatibility tests ``` --- ## ๐Ÿ”ง Implementation Plan ### Phase 1: Core Data Structures (Week 1) ```rust // src/reasoning/knowledge_graph.rs use serde::{Deserialize, Serialize}; use std::collections::{HashMap, HashSet}; #[derive(Debug, Clone, Serialize, Deserialize)] pub struct Triple { pub subject: String, pub predicate: String, pub object: String, pub confidence: f32, pub timestamp: u64, } #[derive(Debug)] pub struct KnowledgeGraph { triples: HashMap, subject_index: HashMap>, object_index: HashMap>, predicate_index: HashMap>, } impl KnowledgeGraph { pub fn new() -> Self { Self { triples: HashMap::new(), subject_index: HashMap::new(), object_index: HashMap::new(), predicate_index: HashMap::new(), } } pub fn add_triple(&mut self, triple: Triple) -> String { let id = Self::generate_id(&triple); // Update indices for O(1) lookups self.subject_index .entry(triple.subject.clone()) .or_insert_with(HashSet::new) .insert(id.clone()); self.object_index .entry(triple.object.clone()) .or_insert_with(HashSet::new) .insert(id.clone()); self.predicate_index .entry(triple.predicate.clone()) .or_insert_with(HashSet::new) .insert(id.clone()); self.triples.insert(id.clone(), triple); id } pub fn bfs_traverse(&self, start: &str, max_depth: usize) -> Vec> { // Sublinear BFS implementation let mut visited = HashSet::new(); let mut queue = std::collections::VecDeque::new(); let mut paths = Vec::new(); queue.push_back((start.to_string(), 0, vec![start.to_string()])); while let Some((node, depth, path)) = queue.pop_front() { if depth >= max_depth || visited.contains(&node) { continue; } visited.insert(node.clone()); paths.push(path.clone()); // Find connected nodes via subject/object indices if let Some(triple_ids) = self.subject_index.get(&node) { for id in triple_ids { if let Some(triple) = self.triples.get(id) { let mut new_path = path.clone(); new_path.push(triple.object.clone()); queue.push_back((triple.object.clone(), depth + 1, new_path)); } } } } paths } fn generate_id(triple: &Triple) -> String { use sha2::{Sha256, Digest}; let mut hasher = Sha256::new(); hasher.update(format!("{}{}{}", triple.subject, triple.predicate, triple.object)); format!("{:x}", hasher.finalize()) } } ``` ### Phase 2: OpenAI API Implementation (Week 2) ```rust // src/api/completions.rs use serde::{Deserialize, Serialize}; use wasm_bindgen::prelude::*; #[derive(Deserialize)] #[serde(rename_all = "snake_case")] pub struct CompletionRequest { pub model: String, pub prompt: String, #[serde(default = "default_max_tokens")] pub max_tokens: u32, #[serde(default = "default_temperature")] pub temperature: f32, #[serde(default)] pub top_p: Option, #[serde(default)] pub n: Option, #[serde(default)] pub stream: bool, #[serde(default)] pub stop: Option>, } #[derive(Serialize)] pub struct CompletionResponse { pub id: String, pub object: String, pub created: u64, pub model: String, pub choices: Vec, pub usage: Usage, } #[derive(Serialize)] pub struct CompletionChoice { pub text: String, pub index: u32, pub logprobs: Option, pub finish_reason: String, } #[derive(Serialize)] pub struct Usage { pub prompt_tokens: u32, pub completion_tokens: u32, pub total_tokens: u32, } #[wasm_bindgen] pub async fn complete(request: JsValue) -> Result { let req: CompletionRequest = serde_wasm_bindgen::from_value(request)?; // Initialize reasoning engine let mut reasoner = PsychoSymbolicReasoner::new(); // Perform reasoning with cache check let result = reasoner.reason(&req.prompt, req.max_tokens as usize).await?; // Format as OpenAI response let response = CompletionResponse { id: format!("cmpl-{}", uuid::Uuid::new_v4()), object: "text_completion".to_string(), created: std::time::SystemTime::now() .duration_since(std::time::UNIX_EPOCH) .unwrap() .as_secs(), model: req.model, choices: vec![CompletionChoice { text: result.answer, index: 0, logprobs: None, finish_reason: "stop".to_string(), }], usage: Usage { prompt_tokens: estimate_tokens(&req.prompt), completion_tokens: estimate_tokens(&result.answer), total_tokens: estimate_tokens(&req.prompt) + estimate_tokens(&result.answer), }, }; Ok(serde_wasm_bindgen::to_value(&response)?) } fn estimate_tokens(text: &str) -> u32 { // Rough estimation: 4 chars per token (text.len() / 4) as u32 } ``` ### Phase 3: Reasoning Engine (Week 3) ```rust // src/reasoning/mod.rs use std::collections::{HashMap, HashSet, VecDeque}; use crate::cache::ReasoningCache; pub struct PsychoSymbolicReasoner { knowledge_graph: KnowledgeGraph, cache: ReasoningCache, patterns: PatternRecognizer, } impl PsychoSymbolicReasoner { pub fn new() -> Self { let mut kg = KnowledgeGraph::new(); Self::initialize_knowledge(&mut kg); Self { knowledge_graph: kg, cache: ReasoningCache::new(10000), patterns: PatternRecognizer::new(), } } pub async fn reason(&mut self, query: &str, max_depth: usize) -> Result { // Check cache first (O(1) lookup) if let Some(cached) = self.cache.get(query) { return Ok(cached); } let start = std::time::Instant::now(); // Step 1: Pattern recognition let patterns = self.patterns.identify(query); // Step 2: Entity extraction let entities = self.extract_entities(query); // Step 3: Knowledge graph traversal (sublinear BFS) let mut insights = HashSet::new(); for entity in &entities { let paths = self.knowledge_graph.bfs_traverse(entity, max_depth); for path in paths { if path.len() >= 2 { let insight = self.generate_insight(&path); insights.insert(insight); } } } // Step 4: Inference chain building let inferences = self.build_inference_chain(&entities, &patterns); // Step 5: Synthesis let answer = self.synthesize_answer(query, &insights, &inferences, &patterns); let result = ReasoningResult { answer, confidence: self.calculate_confidence(&insights, &inferences), insights: insights.into_iter().collect(), patterns: patterns.clone(), compute_time_ms: start.elapsed().as_millis() as u32, }; // Cache the result self.cache.set(query, result.clone()); Ok(result) } fn initialize_knowledge(kg: &mut KnowledgeGraph) { // Pre-load domain knowledge kg.add_triple(Triple { subject: "jwt".to_string(), predicate: "vulnerable_to".to_string(), object: "timing_attacks".to_string(), confidence: 0.85, timestamp: 0, }); kg.add_triple(Triple { subject: "cache_collision".to_string(), predicate: "enables".to_string(), object: "privilege_escalation".to_string(), confidence: 0.92, timestamp: 0, }); // Add more domain knowledge... } fn extract_entities(&self, query: &str) -> Vec { // Fast entity extraction using regex and keyword matching let mut entities = Vec::new(); let keywords = ["api", "jwt", "cache", "security", "user", "auth"]; for keyword in &keywords { if query.to_lowercase().contains(keyword) { entities.push(keyword.to_string()); } } entities } fn generate_insight(&self, path: &[String]) -> String { format!("{} implies {}", path.first().unwrap(), path.last().unwrap()) } fn build_inference_chain(&self, entities: &[String], patterns: &[String]) -> Vec { let mut inferences = Vec::new(); // Apply logical rules based on patterns if patterns.contains(&"causal".to_string()) { for entity in entities { inferences.push(format!("{} causes downstream effects", entity)); } } if patterns.contains(&"lateral".to_string()) { inferences.push("Consider unconventional approaches".to_string()); } inferences } fn synthesize_answer( &self, query: &str, insights: &HashSet, inferences: &[String], patterns: &[String], ) -> String { let mut answer = String::new(); if patterns.contains(&"exploratory".to_string()) { answer.push_str("Analysis reveals: "); } else if patterns.contains(&"systems".to_string()) { answer.push_str("From a systems perspective: "); } // Add top insights for (i, insight) in insights.iter().take(3).enumerate() { if i > 0 { answer.push_str(". "); } answer.push_str(insight); } answer } fn calculate_confidence(&self, insights: &HashSet, inferences: &[String]) -> f32 { let base = 0.5; let insight_boost = (insights.len() as f32) * 0.05; let inference_boost = (inferences.len() as f32) * 0.03; (base + insight_boost + inference_boost).min(1.0) } } ``` ### Phase 4: High-Performance Cache (Week 4) ```rust // src/cache/mod.rs use std::collections::{HashMap, LinkedList}; use std::sync::{Arc, RwLock}; #[derive(Clone)] pub struct ReasoningCache { cache: Arc>>, lru: Arc>>, max_size: usize, } #[derive(Clone)] struct CacheEntry { result: ReasoningResult, hit_count: u32, timestamp: u64, } impl ReasoningCache { pub fn new(max_size: usize) -> Self { Self { cache: Arc::new(RwLock::new(HashMap::new())), lru: Arc::new(RwLock::new(LinkedList::new())), max_size, } } pub fn get(&self, query: &str) -> Option { let key = self.hash_query(query); let cache = self.cache.read().unwrap(); if let Some(entry) = cache.get(&key) { // Update LRU let mut lru = self.lru.write().unwrap(); lru.retain(|&k| k != key); lru.push_front(key); return Some(entry.result.clone()); } None } pub fn set(&mut self, query: &str, result: ReasoningResult) { let key = self.hash_query(query); let mut cache = self.cache.write().unwrap(); let mut lru = self.lru.write().unwrap(); // Evict if necessary if cache.len() >= self.max_size { if let Some(&oldest) = lru.back() { cache.remove(&oldest); lru.pop_back(); } } cache.insert(key, CacheEntry { result, hit_count: 0, timestamp: std::time::SystemTime::now() .duration_since(std::time::UNIX_EPOCH) .unwrap() .as_secs(), }); lru.push_front(key); } fn hash_query(&self, query: &str) -> u64 { use std::collections::hash_map::DefaultHasher; use std::hash::{Hash, Hasher}; let mut hasher = DefaultHasher::new(); query.hash(&mut hasher); hasher.finish() } } ``` ### Phase 5: WASM Bindings (Week 5) ```rust // src/wasm/mod.rs use wasm_bindgen::prelude::*; use web_sys::console; #[wasm_bindgen(start)] pub fn init() { // Set panic hook for better error messages console_error_panic_hook::set_once(); console::log_1(&"Psycho-Symbolic Reasoner WASM initialized".into()); } #[wasm_bindgen] pub struct WasmReasoner { inner: PsychoSymbolicReasoner, } #[wasm_bindgen] impl WasmReasoner { #[wasm_bindgen(constructor)] pub fn new() -> Self { Self { inner: PsychoSymbolicReasoner::new(), } } #[wasm_bindgen] pub async fn complete(&mut self, request: JsValue) -> Result { complete(request).await } #[wasm_bindgen] pub async fn chat(&mut self, request: JsValue) -> Result { // Handle chat completion format let req: ChatCompletionRequest = serde_wasm_bindgen::from_value(request)?; // Extract the last user message let prompt = req.messages .iter() .rev() .find(|m| m.role == "user") .map(|m| m.content.clone()) .ok_or_else(|| JsValue::from_str("No user message found"))?; // Convert to completion request and process let completion_req = CompletionRequest { model: req.model, prompt, max_tokens: req.max_tokens.unwrap_or(100), temperature: req.temperature.unwrap_or(0.7), top_p: req.top_p, n: req.n, stream: req.stream.unwrap_or(false), stop: req.stop, }; complete(serde_wasm_bindgen::to_value(&completion_req)?).await } #[wasm_bindgen] pub fn get_cache_stats(&self) -> JsValue { let stats = CacheStats { size: self.inner.cache.size(), hit_ratio: self.inner.cache.hit_ratio(), avg_compute_time_ms: self.inner.cache.avg_compute_time(), }; serde_wasm_bindgen::to_value(&stats).unwrap() } } ``` --- ## ๐Ÿ“ฆ Cargo.toml Configuration ```toml [package] name = "psycho-symbolic-reasoner" version = "0.1.0" authors = ["rUv "] edition = "2021" license = "MIT OR Apache-2.0" [lib] crate-type = ["cdylib", "rlib"] [dependencies] wasm-bindgen = "0.2" wasm-bindgen-futures = "0.4" serde = { version = "1.0", features = ["derive"] } serde-wasm-bindgen = "0.6" serde_json = "1.0" sha2 = "0.10" uuid = { version = "1.0", features = ["v4", "wasm-bindgen"] } console_error_panic_hook = "0.1" web-sys = { version = "0.3", features = ["console"] } [dev-dependencies] wasm-bindgen-test = "0.3" criterion = "0.5" [profile.release] opt-level = "z" # Optimize for size lto = true # Enable Link Time Optimization codegen-units = 1 # Single codegen unit for better optimization strip = true # Strip symbols panic = "abort" # Smaller binary size [[bench]] name = "reasoning" harness = false ``` --- ## ๐Ÿš€ Build & Deployment ### Build Commands ```bash # Install dependencies cargo install wasm-pack # Build for web wasm-pack build --target web --out-dir pkg # Build for Node.js wasm-pack build --target nodejs --out-dir pkg-node # Build for bundlers (webpack, etc.) wasm-pack build --target bundler --out-dir pkg-bundler # Optimize WASM size wasm-opt -Oz -o pkg/psycho_symbolic_reasoner_bg_opt.wasm pkg/psycho_symbolic_reasoner_bg.wasm ``` ### JavaScript Integration ```javascript // index.js - OpenAI-compatible API server import { WasmReasoner } from './pkg/psycho_symbolic_reasoner.js'; const reasoner = new WasmReasoner(); // Express server setup app.post('/v1/completions', async (req, res) => { try { const result = await reasoner.complete(req.body); res.json(result); } catch (error) { res.status(500).json({ error: error.message }); } }); app.post('/v1/chat/completions', async (req, res) => { try { const result = await reasoner.chat(req.body); res.json(result); } catch (error) { res.status(500).json({ error: error.message }); } }); // Cache statistics endpoint app.get('/v1/cache/stats', (req, res) => { res.json(reasoner.get_cache_stats()); }); ``` --- ## ๐Ÿ“Š Performance Targets ### Benchmarks | Operation | JavaScript (v1.0.11) | Rust WASM (Target) | Improvement | |-----------|---------------------|-------------------|-------------| | Cold Start | 1-2ms | 0.1-0.2ms | 10x | | Cache Hit | 0.03ms | 0.003ms | 10x | | Graph Traversal | 0.5ms | 0.05ms | 10x | | Pattern Recognition | 0.2ms | 0.02ms | 10x | | Memory Usage | 10MB | 1MB | 10x | ### Memory Optimizations 1. **Compact Triple Storage**: Use integer IDs instead of strings 2. **Bit-packed Confidence**: Store as u8 (0-255) instead of f32 3. **Arena Allocator**: Reduce allocation overhead 4. **Zero-copy Deserialization**: Minimize data copying --- ## ๐Ÿงช Testing Strategy ### Unit Tests ```rust #[cfg(test)] mod tests { use super::*; #[test] fn test_knowledge_graph_traversal() { let mut kg = KnowledgeGraph::new(); kg.add_triple(Triple { subject: "a".to_string(), predicate: "leads_to".to_string(), object: "b".to_string(), confidence: 0.9, timestamp: 0, }); let paths = kg.bfs_traverse("a", 2); assert_eq!(paths.len(), 2); } #[test] fn test_cache_eviction() { let mut cache = ReasoningCache::new(2); cache.set("query1", result1()); cache.set("query2", result2()); cache.set("query3", result3()); // Should evict query1 assert!(cache.get("query1").is_none()); assert!(cache.get("query2").is_some()); assert!(cache.get("query3").is_some()); } } ``` ### Integration Tests ```rust #[wasm_bindgen_test] async fn test_openai_api_compatibility() { let request = r#"{ "model": "psycho-symbolic-v1", "prompt": "What are JWT security vulnerabilities?", "max_tokens": 100, "temperature": 0.7 }"#; let response = complete(serde_json::from_str(request).unwrap()).await.unwrap(); assert!(response.choices.len() > 0); assert!(response.usage.total_tokens > 0); } ``` --- ## ๐Ÿ” Security Considerations 1. **Input Validation**: Sanitize all queries to prevent injection 2. **Rate Limiting**: Built-in request throttling 3. **Memory Limits**: Prevent OOM attacks with bounded caches 4. **Secure Random**: Use `getrandom` for cryptographic operations --- ## ๐Ÿ“ˆ Optimization Roadmap ### Phase 6: Advanced Optimizations (Weeks 6-8) 1. **SIMD Acceleration**: Use WASM SIMD for vector operations 2. **WebGPU Integration**: Offload matrix operations to GPU 3. **Streaming Responses**: Implement Server-Sent Events 4. **Multi-threading**: Use Web Workers for parallel reasoning 5. **Compression**: LZ4 compression for cache entries --- ## ๐ŸŒ Deployment Options ### 1. Edge Functions (Cloudflare Workers) ```javascript export default { async fetch(request, env) { const reasoner = new WasmReasoner(); const body = await request.json(); const result = await reasoner.complete(body); return new Response(JSON.stringify(result), { headers: { 'Content-Type': 'application/json' }, }); }, }; ``` ### 2. Docker Container ```dockerfile FROM rust:1.75 as builder WORKDIR /app COPY . . RUN cargo install wasm-pack RUN wasm-pack build --target nodejs FROM node:20-slim WORKDIR /app COPY --from=builder /app/pkg ./pkg COPY server.js . RUN npm install express CMD ["node", "server.js"] ``` ### 3. Native Binary with Embedded WASM ```rust // native-server.rs use wasmtime::*; fn main() { let engine = Engine::default(); let module = Module::from_file(&engine, "psycho_symbolic_reasoner.wasm").unwrap(); // ... server implementation } ``` --- ## ๐Ÿ“ API Documentation ### Endpoints #### POST /v1/completions ```json { "model": "psycho-symbolic-v1", "prompt": "Analyze security vulnerabilities in JWT tokens", "max_tokens": 150, "temperature": 0.7, "top_p": 0.9, "stream": false } ``` #### POST /v1/chat/completions ```json { "model": "psycho-symbolic-v1", "messages": [ {"role": "user", "content": "What are hidden complexities in API design?"} ], "max_tokens": 200, "temperature": 0.8 } ``` #### Response Format ```json { "id": "cmpl-7abc123", "object": "text_completion", "created": 1699123456, "model": "psycho-symbolic-v1", "choices": [{ "text": "Analysis reveals several hidden complexities...", "index": 0, "finish_reason": "stop" }], "usage": { "prompt_tokens": 12, "completion_tokens": 45, "total_tokens": 57 } } ``` --- ## ๐ŸŽฏ Success Metrics 1. **Performance**: <0.1ms response time for cached queries 2. **Accuracy**: 95% relevance score on benchmark queries 3. **Compatibility**: 100% OpenAI API compatibility 4. **Size**: <500KB WASM binary 5. **Memory**: <1MB runtime memory usage --- ## ๐Ÿ“… Timeline | Week | Milestone | Deliverable | |------|-----------|-------------| | 1 | Core data structures | Knowledge graph implementation | | 2 | OpenAI API | Completion endpoints | | 3 | Reasoning engine | BFS traversal, inference chains | | 4 | Caching system | LRU cache with similarity matching | | 5 | WASM compilation | Working WASM module | | 6 | Optimization | SIMD, compression, benchmarks | | 7 | Testing | Integration tests, API validation | | 8 | Deployment | Docker, edge function, documentation | --- ## ๐Ÿš€ Getting Started ```bash # Clone the repository git clone https://github.com/ruvnet/psycho-symbolic-reasoner-wasm cd psycho-symbolic-reasoner-wasm # Build the WASM module wasm-pack build # Run benchmarks cargo bench # Start the API server npm start # Test the API curl -X POST http://localhost:3000/v1/completions \ -H "Content-Type: application/json" \ -d '{ "model": "psycho-symbolic-v1", "prompt": "What are JWT vulnerabilities?", "max_tokens": 100 }' ``` --- ## ๐Ÿ“š References - [OpenAI API Documentation](https://platform.openai.com/docs/api-reference) - [WebAssembly Specification](https://webassembly.github.io/spec/) - [Rust WASM Book](https://rustwasm.github.io/docs/book/) - [wasm-bindgen Guide](https://rustwasm.github.io/wasm-bindgen/) --- This plan provides a complete roadmap for creating a high-performance, OpenAI-compatible psycho-symbolic reasoning API in Rust/WASM with 10x performance improvements over the JavaScript implementation.