diff --git a/README.md b/README.md
index 722de67c..3926e177 100644
--- a/README.md
+++ b/README.md
@@ -1,35 +1,100 @@
-# ANOLISA — An Agentic OS Implementation
+# ANOLISA, An Agentic OS Implementation
+
+![License](https://img.shields.io/github/license/alibaba/anolisa)
+![Last Commit](https://img.shields.io/github/last-commit/alibaba/anolisa)
+![Repo Stars](https://img.shields.io/github/stars/alibaba/anolisa?style=social)
 
 [中文版](README_CN.md)
 
-ANOLISA, the Agentic evolution of Anolis OS, aims to deliver the
-best-practice implementation of Agentic OS — a server-side operating
-system built for AI Agent workloads.
+ANOLISA, the Agentic evolution of Anolis OS, is a server-side operating system stack built for AI agent workloads. It combines terminal tooling, security controls, observability, token-efficiency tooling, and reusable operating skills into a single Agentic OS implementation.
 
 > **A**gentic **N**exus **O**perating **L**ayer & **I**nterface **S**ystem **A**rchitecture
 
+## Table of Contents
+- [Why ANOLISA](#why-anolisa)
+- [Components](#components)
+- [Quick Start](#quick-start)
+- [Build from Source](#build-from-source)
+- [Repository Layout](#repository-layout)
+- [Documentation](#documentation)
+- [License](#license)
+
+## Why ANOLISA
+ANOLISA is aimed at teams building or operating AI agents on servers. It packages several core capabilities that are usually spread across separate tools:
+
+- AI-native shell workflows for coding and task execution
+- sandboxing and security enforcement for agent actions
+- observability for agent processes and LLM usage
+- token optimization helpers for lower-cost inference
+- reusable OS-oriented skills for operations workflows
+
 ## Components
 
 | Component | Description |
 |-----------|-------------|
 | [Copilot Shell](src/copilot-shell/) | AI-powered terminal assistant for code understanding, task automation, and system management. Built on [Qwen Code](https://github.com/QwenLM/qwen-code). |
-| [Agent Sec Core](src/agent-sec-core/) | OS-level security kernel — system hardening, sandboxing, asset integrity verification, and security decision-making. |
-| [AgentSight](src/agentsight/) | eBPF-based observability for AI Agents — zero-intrusion monitoring of LLM API calls, token consumption, and process behavior. |
-| [Token-less](src/tokenless/) | LLM token optimization toolkit — schema/response compression and command rewriting to reduce token consumption. |
+| [Agent Sec Core](src/agent-sec-core/) | OS-level security kernel for system hardening, sandboxing, asset integrity verification, and security decision-making. |
+| [AgentSight](src/agentsight/) | eBPF-based observability for AI agents, including process behavior and LLM API monitoring. |
+| [Token-less](src/tokenless/) | Token optimization toolkit for schema compression, response compression, and command rewriting. |
 | [OS Skills](src/os-skills/) | Curated skill library for system administration, monitoring, security, DevOps, and cloud integration. |
 
-See each component's README for detailed documentation.
-
-## Getting Started
+## Quick Start
+### Install packaged components
 
 ```bash
-# Install all components via RPM
 sudo yum install copilot-shell agent-sec-core agentsight tokenless os-skills
-
-# Launch Copilot Shell
 cosh
 ```
 
-## License
+### Enable sandbox hooks after installation
+Run this once inside Copilot Shell to activate the bundled sandbox policy hooks:
+
+```text
+/hooks install
+```
 
-Apache License 2.0 — see [LICENSE](LICENSE).
+## Build from Source
+For a full source build:
+
+```bash
+git clone https://github.com/alibaba/anolisa.git
+cd anolisa
+./scripts/build-all.sh
+```
+
+Useful variants:
+
+```bash
+./scripts/build-all.sh --no-install
+./scripts/build-all.sh --ignore-deps
+./scripts/build-all.sh --component cosh --component sec-core
+./scripts/build-all.sh --component cosh --component skills --component sec-core --component sight
+```
+
+For detailed dependency and platform notes, see [docs/BUILDING.md](docs/BUILDING.md).
+
+## Repository Layout
+
+```text
+anolisa/
+├── src/
+│   ├── copilot-shell/
+│   ├── os-skills/
+│   ├── agent-sec-core/
+│   └── agentsight/
+├── scripts/
+│   ├── build-all.sh
+│   └── rpm-build.sh
+├── tests/
+│   └── run-all-tests.sh
+├── docs/
+└── Makefile
+```
+
+## Documentation
+- [Build from source](docs/BUILDING.md)
+- [Chinese README](README_CN.md)
+- component-specific README files under `src/`
+
+## License
+Apache License 2.0, see [LICENSE](LICENSE).