# CoStrict > CoStrict is a free, open-source AI-powered coding assistant for enterprises, offering strict mode code generation, AI code review, code completion, and private deployment support. CoStrict is a free, open-source AI coding assistant built for enterprise-grade development workflows. It supports private deployment with physical isolation and end-to-end encryption, making it ideal for organizations with strict security and compliance requirements. Available as a VS Code extension, JetBrains plugin, and CLI tool, CoStrict integrates seamlessly into existing developer environments. It is licensed under Apache 2.0 and developed by Sangfor, Inc. - **Strict Mode**: *Standardizes AI-generated code workflows with requirements analysis, architecture design, task planning, and test generation for high-quality, controllable outputs.* - **AI Code Review**: *Performs repository-wide RAG-based code analysis with multi-expert model verification to catch issues across the entire codebase.* - **Code Completion**: *Provides context-aware code generation in seconds, supporting Python, Go, Java, JavaScript/TypeScript, C/C++, and all major programming languages.* - **Vibe Code**: *Enables rapid development through natural language dialogue for intuitive, conversational coding.* - **MCP Integration**: *Connects to APIs, databases, and custom tools via standardized MCP protocol for extensible system connectivity.* - **Multi-modal Support**: *Accepts image context and visual inputs alongside text for richer AI interactions.* - **Skills System**: *Extensible skills framework supports specialized task workflows and custom agent behaviors.* - **Private Deployment**: *Deploy on-premises with physical isolation and end-to-end encryption to keep code and data fully within your organization.* - **API & Model Customization**: *Built-in free models plus support for Anthropic, OpenAI, OpenAI-compatible APIs, and local models.* - **Large Repository Context**: *Automatically includes relevant context with @ file/folder mentions for accurate, project-aware suggestions.* To get started, install the VS Code extension from the VS Code Marketplace, download the JetBrains plugin from the CoStrict website, or use the CLI tool via the documentation at docs.costrict.ai. ## Features - Strict Mode code generation - AI Code Review with RAG - Context-aware code completion - Vibe coding via natural language - MCP integration - Multi-modal input support - Extensible skills system - Private deployment - API and model customization - Large repository context - Multi-language support - OpenSpec integration ## Integrations VS Code, JetBrains, Anthropic Claude, OpenAI, OpenAI-compatible APIs, Local models, MCP, OpenSpec ## Platforms VSC_EXTENSION, JETBRAINS_PLUGIN, CLI, API ## Pricing Open Source ## Version v2.6.3 ## Links - Website: https://costrict.ai - Documentation: https://docs.costrict.ai/en/guide/installation - Repository: https://github.com/zgsm-ai/costrict - EveryDev.ai: https://www.everydev.ai/tools/costrict