DotnetTokenKiller

A .NET CLI proxy that reduces LLM token usage by filtering the verbose output of dotnet commands down to only what matters.

When you feed dotnet build or dotnet test output to an LLM, most of it is noise — SDK banners, MSBuild headers, progress lines, ANSI escape codes, duplicate error messages. DTK strips all of that and returns a compact, signal-only result. Fewer tokens in means lower cost and less context consumed.

Quick Start

# Install (requires .NET 10 SDK — full SDK, not just runtime)
dotnet tool install -g DotnetTokenKiller

# Use — just prefix any supported dotnet command with dtk
dtk dotnet build
dtk dotnet test
dtk dotnet restore
dtk dotnet clean
dtk dotnet format

Key Features

  • Build filtering — strips MSBuild noise, keeps only errors, warnings, and a compact summary (~78% savings)
  • Test filtering — removes xUnit/NUnit/MSTest adapter banners, license warnings, and reflection stack frames; shows only failures with clean relative paths (~84% savings)
  • Restore/Clean filtering — condenses restore and clean output to essentials (~47–98% savings)
  • Format filtering — shows only violations with workspace-relative paths
  • Token analytics — tracks per-command token savings over time with dtk gain
  • Log teeing — optionally saves raw output to disk for post-mortem inspection
  • AI agent integration — dtk integrate installs hooks for 7 providers: Claude Code, GitHub Copilot, Gemini CLI, Cursor, Windsurf, Aider, and JetBrains AI
  • Self-diagnostics — dtk doctor validates your setup in one command
  • Shell completion — bash, zsh, fish, and PowerShell via dtk completion

How It Works

DTK intercepts dotnet subcommands, runs them, and applies per-command output filters before returning the result. The filtered output is what your LLM — or you — actually needs:

Command Typical Savings
build ~78%
test ~84%
clean ~98%
restore ~47%
format varies

Documentation

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