Introducing Fuse v5: Up to 7.4x Faster dotnet build and 5.7x Faster dotnet test for AI Agents
If you use Claude Code, Cursor, Codex or Copilot on a .NET repository, your agent checks its work by running dotnet build and dotnet test , often dozens of times in one task. Fuse 5 is a .NET tool that answers those checks from a solution it keeps loaded in the background. On four open-source and generated repositories it found the compiler errors an edit caused up to 7.4x faster than dotnet…
Fuse v5 is a .NET tool that speeds up code checking by AI agents. It keeps a warm Roslyn compilation of a repository in a background process and compares it with the last commit. This allows Fuse to report only the errors caused by the latest edits, rather than every error in the entire solution. The tool was benchmarked on four open-source and generated repositories, showing up to 7.4x faster dotnet build and 5.7x faster dotnet test compared to running the commands directly.
Fuse is designed for subagents, allowing multiple agents in a repository to share a single engine and avoiding issues like locked files in bin and obj directories.
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