Nestor Documentation

Everything you need to build, deploy, and manage AI agents with trust and accountability.

Quickstart

Get your first agent running in under 5 minutes.

Agents

Create, configure, and manage AI agents.

Workflows

Orchestrate multi-agent teams with DAG workflows.

Security

Sandbox, guardrails, trust scores, and the Rust security core.

What is Nestor?

Nestor is an open-source AI agent platform designed for developers who need autonomous agents they can actually trust. It provides a complete stack from CLI to web dashboard, with security built into every layer.

Key Capabilities

6 LLM Providers — Claude, OpenAI, Gemini, Grok, Mistral, and Ollama with unified API
Rust Security Core — SSRF protection, path traversal prevention, secret redaction via N-API
Docker Sandbox — Isolated execution with cap-drop ALL and read-only filesystem
DAG Workflows — Multi-agent orchestration with parallel execution and governance gates
Trust Scores — A-F grading based on real execution history
Dry-Run Mode — Preview actions before execution
RAG Codebase Understanding — Semantic search across your entire project
Studio Dashboard — Web UI for monitoring, editing workflows, and tracking costs

Architecture

Nestor is built as a monorepo with distinct packages, each with a clear responsibility:

Package	Role
`@nestor/cli`	Command-line interface with 12+ commands
`@nestor/agent`	Agent runtime, LLM adapters, tool execution
`@nestor/server`	Express + WebSocket server for Studio
`@nestor/orchestrator`	DAG workflow engine with cron scheduling
`@nestor/mcp`	Model Context Protocol tools and resources
`@nestor/db`	SQLite database with 14 tables
`@nestor/skill-tester`	Skill testing framework with mock LLM
`nestor-core`	Rust security module compiled to N-API

CLI Quick Reference

# Installation
npx nestor-sh install

# Agent management
nestor agent create --name coder --adapter claude
nestor agent list
nestor agent config coder

# Interactive shell
nestor shell
nestor shell --agent coder --model claude-sonnet-4-6

# Web Studio
nestor start

# Workflows
nestor workflow run code-review.yaml
nestor workflow list

# Testing
nestor test
nestor test --file tests/my-skill.test.yaml
nestor test --verbose

Next Steps

Follow the Quickstart Guide to set up your first agent
Learn about agent configuration and customization
Explore DAG workflows for multi-agent orchestration
Understand the security model and trust scoring