Agent Rag (Kelasdev)

agentRAG

Intelligent Memory System for AI Agents - Hybrid text+code RAG that helps agents reason over codebases with structured retrieval instead of naive grep-and-guess.

🎯 Overview

agentRAG adalah sistem memory cerdas yang dirancang khusus untuk AI agents. Sistem ini membantu agent bekerja di atas codebase dan dokumentasi dengan retrieval yang lebih terstruktur, sehingga agent tidak hanya membuka file secara acak atau menebak arsitektur dari potongan teks yang kebetulan cocok.

✨ Key Features

• 🧠 Automatic Query Planning - Sistem otomatis mengklasifikasikan query Anda:

- Deteksi intent (explain function, bug hunt, refactor, dll) - Klasifikasi tipe konten (code vs documentation) - Ekstraksi bahasa pemrograman - Identifikasi nama function/class yang dicari

• 🔄 Smart Fallback Strategy - Jika pencarian strict tidak menemukan hasil, sistem secara bertahap melonggarkan filter untuk memberikan hasil terbaik yang tersedia

• 📦 Hybrid Chunking - Strategi chunking yang berbeda untuk setiap tipe konten:

- Code: AST-based chunking (per function/class) menggunakan Tree-sitter - Text: Delimiter-based chunking (per section/topic) untuk menjaga konteks

• 🔌 MCP Server Integration - Native support untuk Model Context Protocol:

- 3 tools siap pakai: query_memory, ingest_documents, health_check - Compatible dengan Claude, Kiro CLI, dan MCP clients lainnya - Natural language query support

• ⚡ Delta Sync - Re-ingest yang efisien:

- Hanya update chunks yang berubah - Hapus chunks yang sudah tidak ada - Stable chunk identity dengan content hashing

• 👀 Watch Mode - Pantau folder dan ingest perubahan secara batch:

- Command: agentrag watch - Menghormati .gitignore - Debounce, batching, dan extension filter

• 🌐 URL Ingest - Ingest langsung dari web:

- Support PDF, DOCX, Markdown, HTML - Auto-sanitization untuk menghilangkan noise (header/footer/menu) - Via Jina Reader API

• 🎨 Multi-Language Support - Python, JavaScript, TypeScript, Go, Java, Rust, C/C++

🏗️ Architecture

User Query → Query Planner → Retrieval → Ranking → Results
                ↓
         Auto-detect:
         - Intent
         - Node Type
         - Language
         - Symbol Name

🚀 Use Cases

• AI Agent Memory - Berikan AI agent akses ke codebase dan dokumentasi Anda
• Code Search - Cari function, class, atau pattern tertentu dalam codebase
• Documentation Search - Temukan guide, tutorial, atau API docs dengan cepat
• Bug Investigation - Cari error patterns atau exception handling
• Refactoring Assistant - Temukan code yang perlu di-refactor

📦 Installation

Prerequisites

• Python 3.10+
• Qdrant Cloud account (atau local Qdrant instance)
• Understanding of vector dimensions (recommended)

Install

1. Copy .env.example to .env and fill QDRANT_URL + QDRANT_API_KEY.
2. Install dependencies with uv sync (recommended) or:

pip install -r requirements.txt
pip install -e .

If you want to use EMBEDDING_PROVIDER=llama_cpp_python on Windows/Python 3.12, do not rely on a plain pip install llama-cpp-python. Use the verified wheel install:

pip install llama-cpp-python --extra-index-url https://abetlen.github.io/llama-cpp-python/whl/cpu --only-binary=:all:
python -c "from llama_cpp import Llama; print('Success: llama-cpp-python is working!')"

For a repeatable Windows setup, you can also run:

powershell -ExecutionPolicy Bypass -File .\scripts\install_windows.ps1

For development/testing:

pip install -r requirements-dev.txt

Quick Start

1. Run ingest (local file/dir):

agentrag ingest docs/PRD.md

Ingest from web URL (via Jina Reader public API):

agentrag ingest "https://example.com/guide.pdf"

Ingest multiple URLs:

agentrag ingest \
  "https://example.com/a.pdf" \
  "https://example.com/b.md" \
  "https://example.com/c.docx"

Mixed local + URL targets:

agentrag ingest ./docs "https://example.com/spec"

Watch a folder and auto-ingest changes:

agentrag watch ./docs
agentrag watch ./my-project --extensions .py,.md --batch-size 3 --debounce-seconds 2
agentrag watch ./my-project --dry-run

1. Run query:

agentrag query "qdrant cloud url" --node-type text --top-k 3

1. Query result is returned as JSON (MCP-friendly), including detected plan and hits.

1. Check Qdrant connectivity:

agentrag health

🔌 MCP Server Integration

agentRAG menyediakan MCP (Model Context Protocol) server untuk integrasi dengan AI agents.

Available Tools

1. query_memory - Search dengan automatic query planning
2. ingest_documents - Tambah dokumen ke memory
3. health_check - Cek status sistem

Configuration

Add to your MCP client config (e.g., Kiro CLI ~/.kiro/mcp.json):

{
  "mcpServers": {
    "agentrag": {
      "command": "python",
      "args": ["-m", "agentrag.mcp_server"],
      "cwd": "/path/to/agentRAG",
      "env": {
        "PYTHONPATH": "/path/to/agentRAG"
      }
    }
  }
}

Usage Example

AI Agent: "Use agentrag to find python function for calculate ROI"

agentRAG automatically:
- Detects: intent=explain_function, node_type=code, language=python
- Searches with filters
- Returns ranked results

Documentation:

• MCP_SERVER_README.md - Complete MCP server guide
• MCP_QUICK_REF.md - Quick reference
• MCP_TESTING.md - Testing guide
• MCP_INSPECTOR_GUIDE.md - Visual testing with MCP Inspector

📚 Features Deep Dive

Automatic Query Planning

Query Anda otomatis dianalisis untuk mendeteksi:

Intent Detection:

• explain_function - "python function calculate_roi"
• bug_hunt - "bug in authentication error"
• refactor_guidance - "refactor user service"
• find_snippet - "show code example"
• general_query - Query umum

Node Type Classification:

• code - Jika menyebut "function", "class", "method"
• text - Jika menyebut "docs", "documentation", "guide"

Language Detection:

• Auto-detect dari keyword: "python", "javascript", "golang", dll

Symbol Extraction:

• "function calculate_roi" → symbol_name: calculate_roi
• "class UserService" → symbol_name: UserService

Smart Fallback Strategy

Jika strict search tidak menemukan hasil:

Strict Search (all filters)
    ↓ No results?
Fallback 1: Remove symbol_name
    ↓ No results?
Fallback 2: Remove language
    ↓ No results?
Fallback 3: Remove node_type
    ↓
Return best available results

Hybrid Chunking Strategy

Supported Languages:

• Python (built-in AST)
• JavaScript/TypeScript (Tree-sitter)
• Go, Java, Rust, C/C++ (Tree-sitter)

Learn More:

• Vector Dimensions Explained - Memahami dimensi vektor dan embedding models

🔧 Advanced Usage

Ingest Behavior

• Re-ingest uses delta sync per source_id.
• Chunk identity is stable: hash(source_id + content_hash).
• Only changed/new chunks are upserted.
• Stale chunks (no longer present in source) are deleted.
• ingest accepts local files/directories and http(s) URLs in the same command.
• URL ingest fetches content through https://r.jina.ai/ and sanitizes common web noise (header/footer/menu separators/emojis) before chunking.
• For URL sources, source_id is the URL itself. Re-running ingest on the same URL performs delta sync against that URL.
• Dry-run is available to inspect changes without writing:

- watch monitors file changes and triggers batched ingest calls. - watch uses Git-aware ignore handling when the target folder is inside a Git repo. - watch supports --dry-run, --extensions, --batch-size, --debounce-seconds, and --non-recursive.

agentrag ingest ../PYRAG/test_data --dry-run

Dry-run with multiple URLs:

agentrag ingest \
  "https://example.com/a.pdf" \
  "https://example.com/b" \
  --dry-run

.gitignore Support

When ingesting directories, agentRAG automatically respects .gitignore patterns:

• Reads .gitignore from the target directory
• Excludes files matching patterns (wildcards, directories)
• Always excludes .git/ directory by default
• Works with nested directories and complex patterns

Example:

# .gitignore in your project
*.pyc
__pycache__/
node_modules/
dist/

# Ingest will automatically skip these files
agentrag ingest ./my-project

Code Graph (Definitions / Callers / Callees)

agentRAG sekarang mendukung navigasi graph sederhana berbasis payload index di Qdrant (tanpa penyimpanan lain):

• Definitions: temukan chunk definisi simbol (function/class/method) via code_metadata.symbol_name.
• Callers: temukan chunk yang memanggil sebuah simbol via code_metadata.calls.
• Callees: ambil daftar pemanggilan dari payload definisi (field code_metadata.calls).

CLI commands:

# Watch local changes and auto-ingest
agentrag watch ./my-project --extensions .py,.md

# Definisi simbol
agentrag defs calculate_roi --language python --limit 10

# Siapa yang memanggil simbol ini?
agentrag callers calculate_roi --language python --limit 25

# Simbol ini memanggil apa saja?
agentrag callees calculate_roi --language python

MCP tool (opsional): code_graph dengan action salah satu dari: definitions, callers, callees.

URL Ingest Details

• Fetch path: JINA_READER_BASE_URL + target_url (default https://r.jina.ai/).
• Intended web document targets: md, txt, rst, pdf, docx, doc, html, htm, and generic web pages.
• Sanitization removes common navigation/header/footer fragments, separator lines, and emoji-heavy noise before chunking.
• If fetch fails or sanitized content is empty, target is counted as skipped.

URL Ingest Config

Set in .env:

JINA_READER_BASE_URL=https://r.jina.ai/
WEB_FETCH_TIMEOUT_SECONDS=45

• JINA_READER_BASE_URL: Base endpoint for web-to-text extraction.
• WEB_FETCH_TIMEOUT_SECONDS: Request timeout per URL fetch.

📋 Chunking Strategy

• Python uses built-in ast extraction.
• JavaScript/TypeScript/Go/Java use tree-sitter for structural chunk extraction.
• If tree-sitter runtime is unavailable at execution time, the chunker falls back to a regex-based structural parser for those languages.

🧪 Testing

Install dev dependencies:

pip install -r requirements-dev.txt

Quick Test

Run all tests:

./scripts/run_all_tests.sh

Or run individual test suites:

# Unit tests (pytest)
pytest -q

# Integration tests
python scripts/test_mcp_integration.py

# Scenario tests
python scripts/test_scenarios.py

Test Coverage

Current Status: ✅ 54/56 tests passing (96.4% success rate)

• Unit Tests: 36 passed, 2 skipped
• Integration Tests: 3 passed
• Scenario Tests: 15 passed

See TEST_REPORT.md for detailed test results and coverage analysis.

MCP Server Testing

Test the MCP server integration:

# Unit tests
pytest tests/test_mcp_server.py -v

# Integration test
python scripts/test_mcp_integration.py

# Visual testing with MCP Inspector
npx @modelcontextprotocol/inspector python -m agentrag.mcp_server

See MCP_TESTING.md for comprehensive testing guide and MCP_QUICK_REF.md for quick reference.

📚 Documentation

• Vector Dimensions Explained - Memahami dimensi vektor dan embedding models
• MCP Server Guide - Complete MCP server documentation
• MCP Quick Reference - Quick reference for MCP tools
• MCP Testing Guide - Comprehensive testing guide
• MCP Inspector Guide - Visual testing with MCP Inspector

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

📄 License

This project is licensed under the MIT License.

🙏 Acknowledgments

• Qdrant - Vector database
• FastEmbed - Fast embedding models
• Tree-sitter - Code parsing
• Model Context Protocol - AI agent integration