lr.Dotnet.AiFixBuildTool 2026.3.24.1735
lr-ai-fix-build
AI-powered .NET build fixer using coding agent CLIs (Claude Code, GitHub Copilot, Gemini CLI). Fixes build errors and updates NuGet packages.
Usage
Run it directly with dnx:
dnx -y lr.Dotnet.AiFixBuildTool <command>
Commands
fix-build
Fix build errors using a coding agent CLI. Runs dotnet restore and dotnet build, then uses the agent to diagnose and fix any errors.
dnx -y lr.Dotnet.AiFixBuildTool fix-build
dnx -y lr.Dotnet.AiFixBuildTool fix-build --working-dir /path/to/project
update-packages
Update NuGet packages via lr-nuget-update, then fix any resulting build errors.
dnx -y lr.Dotnet.AiFixBuildTool update-packages
dnx -y lr.Dotnet.AiFixBuildTool update-packages --filter "Microsoft*,Serilog*"
dnx -y lr.Dotnet.AiFixBuildTool update-packages --working-dir /path/to/project
Options
| Option | Description |
|---|---|
--working-dir |
Target project directory (defaults to current directory) |
--agent |
Coding agent to use: claude, copilot, or gemini. Auto-detected if not specified (prefers claude > copilot > gemini). |
--cli-path |
Path to the coding agent CLI executable (auto-detected if not specified) |
--filter |
Comma-separated glob patterns to filter packages (update-packages only) |
How it works
- fix-build: Restores packages, attempts a build (retries once on first failure), then uses the coding agent to read errors, inspect source files, and apply targeted fixes until the build succeeds.
- update-packages: Runs
dnx -y lr.Dotnet.NugetUpdateToolto update packages (with optional--filter), then runs the fix-build flow to resolve any breaking changes.
Supported agents
The tool auto-detects which coding agent CLI is available, preferring Claude Code > GitHub Copilot > Gemini CLI. Override with --agent:
lr-ai-fix-build fix-build --agent copilot
lr-ai-fix-build fix-build --agent gemini --cli-path /usr/local/bin/gemini
Installation
If you prefer to have it installed globally:
dotnet tool install -g lr.Dotnet.AiFixBuildTool
Usage after installation:
lr-ai-fix-build fix-build
lr-ai-fix-build update-packages --filter "Microsoft*"