SageFs
Active·★ 65·Updated 2026-05-14
★ Trending★ Memory & Context★ API Integration
Sage Mode for F# development — REPL with solution or project loading, Live Testing for FREE, Hot Reload, and session management.
SageFs is a .NET global tool that provides a live F# development server, enabling sub-second hot reload, live unit testing, and full project context in an interactive REPL. It aims to eliminate the traditional edit-build-run cycle, enhancing developer flow and productivity.
#F# Development#Hot Reload#Live Unit Testing#AI Agent Integration#REPL-Driven Development#.NET Global Tool#Developer Tools
01
Features
01Sub-second hot reload with Harmony patching and SSE-driven browser auto-refresh.
02Automated live unit testing with inline pass/fail markers and code coverage across various editors.
03AI agent integration via Model Context Protocol (MCP) for interactive code execution, type-checking, and API exploration.
04Full project context (NuGet, references, namespaces) automatically loaded into the REPL.
05Multi-session support with isolated worker processes and an Erlang-style supervisor for crash-proof operation.
02
Compatibility
.NET
Runtime
Verified via docs
Docker
Containerization
Verified via docs
VS Code
Editor Integration
Verified via docs
Neovim
Editor Integration
Verified via docs
Visual Studio
Editor Integration
Verified via docs
AI Agents (MCP)
Protocol
Verified via docs
03
Quick start
1
$ dotnet tool install --global SageFs
04
Use cases
↳Accelerated F# web development with instant hot reload and browser auto-refresh for frameworks like Falco/ASP.NET.
↳AI-assisted development, allowing AI agents to interactively execute F# code, type-check, and explore APIs via MCP.
↳REPL-driven development for rapid prototyping, API exploration, and testing with full project dependencies.
↳Streamlined Test-Driven Development (TDD) by running tests directly within SageFs without external runners, providing immediate feedback.
05
Alternatives
CopilotKit★ 31.8k
React UI + elegant infrastructure for AI Copilots, AI chatbots, and in-app AI agents. The Agentic Frontend.
mcp-chrome★ 11.8k
Chrome MCP Server is a Chrome extension-based Model Context Protocol (MCP) server that exposes your Chrome browser functionality to AI assistants like Claude, enabling complex browser automation, content analysis, and semantic search.
Context7★ 56.4k
MCP Server that provides up-to-date code documentation for LLMs and AI code editors.
GitHub MCP Server★ 30.3k
GitHub's official MCP Server. Allows AI agents to interact directly with your GitHub repositories (read files, search code, issues).
Figma-Context-MCP★ 14.9k
MCP server to provide Figma layout information to AI coding agents like Cursor
Related searches
Comments
Log in to leave a comment
- LLane JacksonMay 15, 2026
Live testing capabilities make interactive F# development much more productive
- SSpencer GarciaMay 14, 2026
Used for F# development workflows, the REPL persistence eliminates slow compilation cycles
- SSpencer ClarkApr 8, 2026
F# development with live REPL and solution loading is exactly what F# developers need
- OOakley WilsonMar 8, 2026
Sage Mode for F# is an apt name — the tooling feels wise about the language idioms