| 0 |
| Ecosystem | 1 | 1 |
| Match Graph | 0 | 0 |
| Pricing | Free | Free |
| Capabilities | 13 decomposed | 6 decomposed |
| Times Matched | 0 | 0 |
Captures tool usage observations at five discrete lifecycle points (SessionStart, UserPromptSubmit, PostToolUse, Summary, SessionEnd) via CLAUDE.md plugin hooks registered with Claude Code. Each hook fires at specific moments in the agent's execution flow, collecting raw tool invocations, outputs, and user interactions without requiring manual instrumentation. The system queues observations asynchronously and routes them to a worker service for processing.
Unique: Uses a 5-point lifecycle hook system (SessionStart, UserPromptSubmit, PostToolUse, Summary, SessionEnd) registered via CLAUDE.md manifest rather than generic event emitters, enabling tight coupling with Claude Code's internal execution flow and precise timing of observation capture at critical decision points
vs alternatives: More precise than generic logging because hooks fire at semantically meaningful moments in the agent's workflow rather than at arbitrary code execution points, reducing noise and improving observation quality
Extracts and compresses raw tool observations into structured, semantically meaningful summaries using Claude 3.5 Sonnet, Haiku, or other models via Claude Agent SDK, Gemini, or OpenRouter. The system implements agent selection with fallback logic—if the primary provider fails, it automatically retries with a secondary provider. Compression happens asynchronously in a worker service queue, preventing blocking of the IDE during AI processing.
Unique: Implements agent selection with fallback logic in the worker service—if Claude API fails, automatically retries with Gemini or OpenRouter without user intervention. Uses Claude Agent SDK for structured prompt generation and response parsing, enabling semantic compression rather than simple truncation
vs alternatives: More resilient than single-provider systems because fallback ensures observations are always processed even if primary API is unavailable; more intelligent than regex-based summarization because it uses LLMs to extract semantic meaning
Implements a hierarchical configuration system where settings are resolved in priority order: environment variables (highest), .claude-mem/config.json, .claude-mem/.env, and hardcoded defaults (lowest). This allows users to configure the system via environment variables (for CI/CD), config files (for projects), or defaults (for simplicity). The system supports configuration for AI providers, database paths, privacy controls, and token budgets. Configuration is validated on startup and errors are reported clearly.
Unique: Implements a 4-level configuration priority system (env vars > config.json > .env > defaults) that allows flexible configuration without forcing users into a single approach. Configuration is validated on startup with clear error messages. This pattern is common in modern CLI tools but less common in IDE plugins
vs alternatives: More flexible than single-source configuration because it supports multiple configuration methods; more transparent than hidden configuration because the priority order is documented; more robust than unvalidated configuration because invalid settings are caught at startup
Provides a web-based UI (accessible via localhost) for viewing observations, searching memory, and managing settings. The UI uses Server-Sent Events (SSE) for real-time updates, allowing the browser to receive notifications when new observations are captured or processed. The UI includes a settings modal for configuring privacy controls, AI providers, and token budgets. Component architecture separates concerns (search, timeline, settings) into reusable React components.
Unique: Implements a web-based UI with Server-Sent Events for real-time updates, allowing users to see observations as they're captured without polling. Component architecture separates search, timeline, and settings into reusable React components. Settings modal provides GUI-based configuration without requiring JSON editing
vs alternatives: More user-friendly than CLI-only tools because it provides a visual interface; more responsive than polling-based updates because SSE pushes updates in real-time; more discoverable than hidden configuration because settings are exposed in a modal
Implements a batch processing system (Ragtime) that compresses multiple observations in parallel, optimizing for throughput over latency. The batch processor groups observations by session, submits them to the AI API in batches, and persists results to SQLite/ChromaDB. This is useful for backfilling observations from previous sessions or processing high-volume observation streams. Batch processing is configurable (batch size, parallelism) and can be triggered manually or scheduled.
Unique: Implements a dedicated batch processor (Ragtime) that optimizes for throughput by grouping observations into batches and submitting them in parallel. This is distinct from the real-time observation compression pipeline, which optimizes for latency. Batch processing is configurable and can be triggered manually or scheduled
vs alternatives: More efficient than processing observations one-at-a-time because batching reduces API overhead; more flexible than fixed batch sizes because parallelism and batch size are configurable; more suitable for backfill scenarios because it can process large volumes without blocking the IDE
Persists compressed observations in two complementary stores: SQLite (~/.claude-mem/claude-mem.db) for structured relational data with schema migrations, and ChromaDB (~/.claude-mem/vector-db) for semantic vector embeddings. The system maintains schema consistency through migrations, syncs embeddings via ChromaSync operations, and enables both SQL queries (for exact matches, filtering) and vector similarity search (for semantic retrieval). Data flows from observation compression → SQLite insert → ChromaDB embedding sync.
Unique: Implements a dual-storage architecture where SQLite serves as the source-of-truth for structured data and ChromaDB is synced asynchronously via ChromaSync operations. This decouples relational queries from vector search, allowing each store to optimize for its access pattern. Schema migrations are managed explicitly, enabling safe schema evolution without data loss
vs alternatives: More flexible than single-store solutions because it supports both exact filtering (SQL) and semantic search (vectors) without forcing a choice; more reliable than cloud-only memory because data persists locally and survives network outages
Implements a three-layer search workflow that progressively discloses context to optimize token usage: Layer 1 (fast metadata filtering) uses SQLite queries to narrow candidates by timestamp, file path, or tags; Layer 2 (semantic search) queries ChromaDB for vector similarity to the user's query; Layer 3 (context assembly) constructs the final MEMORY.md with ranked results. The system uses progressive disclosure—it starts with minimal context and expands only if the agent requests more, reducing token overhead for simple queries.
Unique: Uses a 3-layer workflow (metadata filtering → semantic search → context assembly) with progressive disclosure that starts with minimal context and expands only on demand. This is distinct from traditional RAG systems that return all relevant documents at once. The Timeline Service provides temporal filtering, enabling queries like 'show me work from last Tuesday on the auth module'
vs alternatives: More token-efficient than naive RAG because it uses progressive disclosure instead of returning all relevant documents upfront; faster than full-text search because Layer 1 metadata filtering eliminates most candidates before expensive vector operations
Generates a structured MEMORY.md file containing compressed observations, ranked by relevance, and injects it into Claude Code's context at session start via the SessionStart hook. The MEMORY.md format includes observation summaries, metadata (timestamps, file paths, tool names), and optional tags. The system uses a Context Builder Pipeline to assemble MEMORY.md from search results, ensuring consistent formatting and token budgeting.
Unique: Uses a structured MEMORY.md format (markdown with YAML frontmatter for metadata) that is both human-readable and machine-parseable. The Context Builder Pipeline assembles MEMORY.md from search results with token budgeting, ensuring it fits within Claude's context window. Injection happens at SessionStart hook, making it transparent to the user
vs alternatives: More transparent than hidden context injection because MEMORY.md is visible in the IDE; more structured than raw observation dumps because it uses consistent formatting and metadata; more efficient than re-querying the database during the session because context is pre-assembled at startup
+5 more capabilities
Converts variable-length text sequences into fixed 384-dimensional dense vector embeddings using a distilled BERT architecture (6 transformer layers, 22.7M parameters). The model applies mean pooling over token representations and L2 normalization to produce normalized embeddings suitable for cosine similarity comparisons. Trained on diverse datasets (S2ORC, MS MARCO, StackExchange, Yahoo Answers) to capture semantic meaning across domains including academic papers, web search, Q&A, and code.
Unique: Distilled BERT architecture (6 layers vs standard 12) trained via knowledge distillation from larger models, achieving 5-10x faster inference than full BERT while maintaining 95%+ semantic quality; optimized for mean-pooling-based sentence representations rather than [CLS] token extraction
vs alternatives: Faster inference than OpenAI's text-embedding-3-small (sub-10ms vs 50-100ms per text) and fully open-source/self-hostable unlike proprietary APIs, though with slightly lower semantic quality on specialized domains
Computes pairwise cosine similarity scores between sets of text embeddings using vectorized operations, enabling efficient comparison of one query against thousands of documents. Leverages PyTorch/TensorFlow's optimized matrix multiplication (GEMM) kernels to compute similarity matrices in O(n*m) time where n and m are batch sizes. Supports both symmetric similarity (corpus-to-corpus) and asymmetric queries (single query vs corpus).
Unique: Integrates seamlessly with sentence-transformers' util.semantic_search() function which uses optimized FAISS-style indexing for top-k retrieval without computing full similarity matrices, reducing memory overhead from O(n*m) to O(n) for large-scale retrieval
vs alternatives: More memory-efficient than naive cosine similarity implementations and faster than computing similarities on-the-fly from raw text, though slower than specialized vector databases (FAISS, Milvus) for >100k document corpora
all-MiniLM-L6-v2 scores higher at 55/100 vs claude-mem at 50/100. claude-mem leads on quality and ecosystem, while all-MiniLM-L6-v2 is stronger on adoption.
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Supports inference and deployment across multiple runtime formats including PyTorch, TensorFlow, ONNX, OpenVINO, and Rust bindings, enabling deployment flexibility from cloud servers to edge devices. The model can be exported to ONNX format for hardware-agnostic inference, quantized to int8 for mobile/edge deployment, or compiled to OpenVINO for Intel CPU optimization. Each format maintains numerical equivalence (within floating-point precision) while trading off inference speed, model size, and hardware compatibility.
Unique: Distributed across multiple ecosystem projects (sentence-transformers for PyTorch, ONNX community for format conversion, OpenVINO toolkit for Intel optimization) rather than single unified export pipeline; enables best-in-class optimization per format but requires manual orchestration
vs alternatives: More deployment flexibility than proprietary embedding APIs (OpenAI, Cohere) which lock you into their inference infrastructure; more mature ONNX support than newer models due to wide adoption in sentence-transformers ecosystem
Applies embeddings trained on diverse datasets (academic papers, web search, Q&A, code search, StackExchange) to new domains without fine-tuning, leveraging learned semantic representations that generalize across task boundaries. The model was trained via multi-task learning on 8+ datasets with different semantic properties, enabling it to capture domain-agnostic semantic relationships. Works effectively on out-of-domain text due to broad training coverage, though with degraded performance on highly specialized domains (medical, legal, scientific jargon).
Unique: Trained via multi-task learning on 8+ heterogeneous datasets (S2ORC papers, MS MARCO web search, StackExchange Q&A, Yahoo Answers, CodeSearchNet, SearchQA, ELI5) rather than single-domain optimization, creating a 'semantic commons' that generalizes across task boundaries at the cost of domain-specific peak performance
vs alternatives: Better zero-shot transfer to unseen domains than domain-specific embeddings (e.g., SciBERT for papers only), though 5-15% lower performance than fine-tuned models on specialized tasks; more practical for multi-domain applications than maintaining separate embedding models
Achieves 5-10x faster inference than full BERT models through knowledge distillation, where a 6-layer student model learns to replicate the behavior of larger teacher models while maintaining 95%+ semantic quality. The distilled architecture reduces parameters from 110M (BERT-base) to 22.7M, enabling sub-10ms inference on CPU and sub-1ms on GPU. Distillation preserves semantic understanding while eliminating redundant transformer layers, making it suitable for latency-sensitive applications.
Unique: Uses asymmetric distillation where student (6 layers) learns from teacher (12 layers) via MSE loss on hidden states and attention patterns, not just final embeddings; preserves semantic structure while reducing depth, enabling both speed and quality retention
vs alternatives: Faster inference than full BERT-base (5-10x) and smaller than full models (22.7M vs 110M params), though slower than extreme compression techniques (TinyBERT, MobileBERT) which sacrifice more quality; better quality-to-speed trade-off than quantization-only approaches
Produces L2-normalized embeddings where all vectors have unit length (norm = 1), enabling direct cosine similarity computation via simple dot product without explicit normalization. The normalization is applied post-pooling in the model architecture, ensuring embeddings are always in the unit hypersphere. This design choice enables efficient similarity scoring and makes embeddings compatible with specialized vector databases (FAISS, Pinecone) that assume normalized vectors.
Unique: Applies L2 normalization as final layer in model architecture (not post-processing), ensuring all embeddings are guaranteed normalized without additional computation; enables direct dot-product similarity computation with mathematical equivalence to cosine similarity
vs alternatives: More efficient than post-hoc normalization of unnormalized embeddings; ensures compatibility with vector databases that assume normalized inputs; enables faster similarity computation (dot product vs cosine) on GPU