MCP Binlog Tool
A Model Context Protocol server binary that exposes information inside an MSBuild Binary Log to LLMs to aid build analysis.
What is MCP Binlog Tool?
MCP Binlog Tool is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to model context protocol server binary that exposes information inside an msbuild binary log to llms to aid build analysis.
A Model Context Protocol server binary that exposes information inside an MSBuild Binary Log to LLMs to aid build analysis.
This server falls under the Developer Tools and Monitoring & Observability categories on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- A Model Context Protocol server binary that exposes informat
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx mcp-binlog-toolConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use MCP Binlog Tool
MCP Binlog Tool exposes the contents of MSBuild Binary Log (.binlog) files to AI assistants, enabling LLM-assisted build analysis directly from Claude or VS Code. It parses the structured log produced by dotnet build -bl or msbuild /bl and surfaces diagnostics, target execution times, project evaluations, and embedded source files as queryable MCP tools. .NET developers and build engineers use it to diagnose intermittent build failures, identify slow targets, and detect overbuilding without manually reading dense binary log output.
Prerequisites
- .NET SDK installed (the server is written in C# and distributed as a NuGet tool via dnx)
- dnx tool runner installed (used to execute the NuGet package)
- An MSBuild Binary Log file (.binlog) produced by running dotnet build -bl or msbuild /bl
- An MCP-compatible client such as Claude Desktop or VS Code with MCP support enabled
Install the binlog MCP server via Claude MCP add
The easiest installation method uses the claude mcp add command which registers the server using dnx to fetch and run the baronfel.binlog.mcp NuGet package.
claude mcp add binlog -- dnx baronfel.binlog.mcp -yProduce a binary log from your build
Generate a .binlog file from your .NET project. The file captures the full build graph, timing data, diagnostics, and evaluated properties.
dotnet build -bl
# or:
msbuild /bl
# Default output: msbuild.binlog in the current directoryConfigure VS Code to use the server
For VS Code users, enable MCP discovery and add the binlog server entry to your settings or workspace configuration.
// .vscode/settings.json
{
"chat.mcp.discovery.enabled": true,
"mcp": {
"servers": {
"binlog-mcp": {
"type": "stdio",
"command": "dnx",
"args": ["-y", "baronfel.binlog.mcp"]
}
}
}
}Open the MCP Inspector for local builds (optional)
During development or testing, use the MCP Inspector to interact with the server and verify it can read a local .binlog file.
npx @modelcontextprotocol/inspector ./artifacts/bin/binlog.mcp/debug/binlog.mcp.exeLoad a binlog and start querying
Point the server at your .binlog file and ask Claude to analyze it. The server supports diagnostics, target timing, project cost analysis, and freetext search using MSBuild Structured Log Viewer syntax.
MCP Binlog Tool Examples
Client configuration
Claude Desktop configuration for the binlog MCP server using dnx.
{
"mcpServers": {
"binlog": {
"command": "dnx",
"args": ["-y", "baronfel.binlog.mcp"]
}
}
}Prompts to try
Example prompts for MSBuild binary log analysis.
- "List all errors and warnings in the msbuild.binlog file"
- "Which targets took the longest to execute in this build?"
- "Show me all projects that were built and their individual build times"
- "Search the binlog for any mention of NuGet restore failures"
- "Are there any projects being overbuild (built more than once unnecessarily)?"Troubleshooting MCP Binlog Tool
dnx command not found after installation
Ensure you have a compatible .NET SDK installed and that global .NET tools are on your PATH. Run dotnet tool install -g dnx or check the project README for the correct dnx installation steps for your platform.
Server cannot read the .binlog file
Verify the .binlog file path is accessible to the server process. Pass the full absolute path to the file when querying, or ensure the working directory is set correctly in your MCP client configuration.
Build analysis returns no results for a large binlog
Large binary logs can be slow to parse on first access. The server uses intelligent caching so subsequent queries on the same file will be faster. Ensure you have sufficient memory available for the file being parsed.
Frequently Asked Questions about MCP Binlog Tool
What is MCP Binlog Tool?
MCP Binlog Tool is a Model Context Protocol (MCP) server that model context protocol server binary that exposes information inside an msbuild binary log to llms to aid build analysis. It connects AI assistants to external tools and data sources through a standardized interface.
How do I install MCP Binlog Tool?
Follow the installation instructions on the MCP Binlog Tool GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with MCP Binlog Tool?
MCP Binlog Tool works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is MCP Binlog Tool free to use?
Yes, MCP Binlog Tool is open source and available under the MIT license. You can use it freely in both personal and commercial projects.
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Set Up MCP Binlog Tool in Your Editor
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Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
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