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**Documentation:** [Getting Started](docs/GETTING_STARTED.md) · README · [Configuration](docs/CONFIGURATION.md) · [IDE Clients](docs/IDE_CLIENTS.md) · [MCP API](docs/MCP_API.md) · [ctx CLI](docs/CTX_CLI.md) · [Memory Guide](docs/MEMORY_GUIDE.md) · [Architecture](docs/ARCHITECTURE.md) · [Multi-Repo](docs/MULTI_REPO_COLLECTIONS.md) · [Observability](docs/OBSERVABILITY.md) · [Kubernetes](deploy/kubernetes/README.md) · [VS Code Extension](docs/vscode-extension.md) · [Troubleshooting](docs/TROUBLESHOOTING.md) · [Development](docs/DEVELOPMENT.md)
---
## Context-Engine
Open-source, self-improving code search that gets smarter every time you use it.
<p align="center">
<img src="useage.png" alt="Context-Engine Usage" width="50%"/>
</p>
---
## Quick Start: Stack in 30 Seconds
### VS Code Extension (Easiest)
1. Install [Context Engine Uploader](https://marketplace.visualstudio.com/items?itemName=context-engine.context-engine-uploader)
2. Open any project → extension prompts to set up Context-Engine stack
3. Opened workspace is indexed
4. MCP configs can configure your agent/IDE
**That's it!** The extension handles everything:
- Clones Context-Engine to your chosen location (keeps it separate from your project)
- Starts the Docker stack automatically
- Sets up MCP bridge configuration
- Writes MCP configs for Claude Code, Windsurf, and Augment
**Claude Code users:** Install the skill plugin:
```
/plugin marketplace add m1rl0k/Context-Engine
/plugin install context-engine
```
### Manual Setup (Alternative)
```bash
git clone https://github.com/m1rl0k/Context-Engine.git && cd Context-Engine
make bootstrap # One-shot: up → wait → index → warm → health
```
Or step-by-step:
```bash
docker compose up -d
HOST_INDEX_PATH=/path/to/your/project docker compose run --rm indexer
```
*See [Configuration](docs/CONFIGURATION.md) for environment variables and [IDE_CLIENTS.md](docs/IDE_CLIENTS.md) for MCP setup.*
---
## Why This Stack Works Better
| Problem | Context-Engine Solution |
|---------|------------------------|
| **Large file chunks** → returns entire files | **Precise spans**: Returns 5-50 line chunks, not whole files |
| **Lost context** → missing relevant code | **Hybrid search**: Semantic + lexical + cross-encoder reranking |
| **Cloud dependency** → vendor lock-in | **Local stack**: Docker Compose on your machine |
| **Static knowledge** → never improves | **Adaptive learning**: Gets smarter with every use |
| **Tool limits** → only works in specific IDEs | **MCP native**: Works with any MCP-compatible tool |
---
## What You Get Out of the Box
- **ReFRAG-inspired micro-chunking**: Research-grade precision retrieval
- **Self-hosted stack**: No cloud dependency, no vendor lock-in
- **Universal compatibility**: Claude Code, Windsurf, Cursor, Cline, etc.
- **Auto-syncing**: Extension watches for changes and re-indexes automatically
- **Memory system**: Store team knowledge alongside your code
- **Optional LLM features**: Local decoder (llama.cpp), cloud integration (GLM, MiniMax), adaptive rerank learning
### Works With Your Local Files
No complicated path setup - Context-Engine automatically handles the mapping between your local files and the search index.
### Enterprise-Ready Features
- **Built-in authentication** with session management (optional)
- **Unified MCP endpoint** that combines indexer and memory services
- **Automatic collection injection** for workspace-aware queries
**Alternative: Direct HTTP endpoints**
```json
{
"mcpServers": {
"qdrant-indexer": { "url": "http://localhost:8003/mcp" },
"memory": { "url": "http://localhost:8002/mcp" }
}
}
```
*Using other IDEs? See [docs/IDE_CLIENTS.md](docs/IDE_CLIENTS.md) for complete MCP configuration examples.*
---
## Supported Clients
| Client | Transport |
|--------|-----------|
| Claude Code | SSE / RMCP |
| Cursor | SSE / RMCP |
| Windsurf | SSE / RMCP |
| Cline | SSE / RMCP |
| Roo | SSE / RMCP |
| Augment | SSE |
| Codex | RMCP |
| Copilot | RMCP |
| AmpCode | RMCP |
| Kiro | RMCP |
| Antigravity | RMCP |
| Zed | SSE (via mcp-remote) |
---
## Endpoints
| Service | URL |
|---------|-----|
| Indexer MCP (SSE) | `http://localhost:8001/sse` |
| Indexer MCP (RMCP) | `http://localhost:8003/mcp` |
| Memory MCP (SSE) | `http://localhost:8000/sse` |
| Memory MCP (RMCP) | `http://localhost:8002/mcp` |
| Qdrant | `http://localhost:6333` |
| Upload Service | `http://localhost:8004` |
---
## VS Code Extension
[Context Engine Uploader](https://marketplace.visualstudio.com/items?itemName=context-engine.context-engine-uploader) provides:
- **One-click upload** — Sync workspace to Context-Engine
- **Auto-sync** — Watch for changes and re-index automatically
- **Prompt+ button** — Enhance prompts with code context before sending
- **MCP auto-config** — Writes Claude/Windsurf MCP configs
See [docs/vscode-extension.md](docs/vscode-extension.md) for full documentation.
---
## MCP Tools
**Search** (Indexer MCP):
- `repo_search` — Hybrid code search with filters
- `context_search` — Blend code + memory results
- `context_answer` — LLM-generated answers with citations
- `search_tests_for`, `search_config_for`, `search_callers_for`
**Memory** (Memory MCP):
- `store` — Save knowledge with metadata
- `find` — Retrieve stored memories
**Indexing**:
- `qdrant_index_root` — Index the workspace
- `qdrant_status` — Check collection health
- `qdrant_prune` — Remove stale entries
See [docs/MCP_API.md](docs/MCP_API.md) for complete API reference.
---
## Documentation
| Guide | Description |
|-------|-------------|
| [Getting Started](docs/GETTING_STARTED.md) | VS Code + dev-remote walkthrough |
| [IDE Clients](docs/IDE_CLIENTS.md) | Config examples for all supported clients |
| [Configuration](docs/CONFIGURATION.md) | Environment variables reference |
| [MCP API](docs/MCP_API.md) | Full tool documentation |
| [Architecture](docs/ARCHITECTURE.md) | System design |
| [Multi-Repo](docs/MULTI_REPO_COLLECTIONS.md) | Multiple repositories in one collection |
| [Kubernetes](deploy/kubernetes/README.md) | Production deployment |
---
## How It Works
```mermaid
flowchart LR
subgraph Your Machine
A[IDE / AI Tool]
V[VS Code Extension]
end
subgraph Docker
U[Upload Service]
I[Indexer MCP]
M[Memory MCP]
Q[(Qdrant)]
L[[LLM Decoder]]
W[[Learning Worker]]
end
V -->|sync| U
U --> I
A -->|MCP| I
A -->|MCP| M
I --> Q
M --> Q
I -.-> L
I -.-> W
W -.-> Q
```
---
## Language Support
Python, TypeScript/JavaScript, Go, Java, Rust, C#, PHP, Shell, Terraform, YAML, PowerShell
---
## Benchmarks
### CoSQA (Dense Retrieval, No Rerank)
| Method | MRR | R@1 | R@5 | R@10 | NDCG@10 |
|--------|-----|-----|-----|------|---------|
| **Context-Engine (Jina-Code)** | **0.276** | 0.146 | 0.448 | 0.658 | 0.365 |
| Context-Engine (BGE-base) | 0.253 | 0.150 | 0.374 | 0.550 | 0.322 |
| CodeT5+ embedding | 0.266 | - | - | - | - |
| BM25 (Lucene) | 0.167 | - | - | - | - |
| BoW | 0.065 | - | - | - | - |
*Corpus: 20,604 code snippets | 500 queries | Pure dense retrieval, no reranking*
*Jina-Code: jinaai/jina-embeddings-v2-base-code (code-specific, 8k context)*
---
## License
MIT
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