Individual skill

process-api-net11

Provides guidance on the new System.Diagnostics.Process APIs introduced in .NET 11: Process.Run, Process.RunAndCaptureText, Process.StartAndForget, Process.ReadAllText/Bytes/Lines, KillOnParentExit, InheritedHandles, and StartDetached. USE FOR: starting, orchestrating, or capturing output from external processes in applications targeting net11.0 or later. DO NOT USE FOR: applications targeting .NET 10 or earlier, or basic pre-.NET 11 Process.Start usage without new APIs.

plugins/dotnet11/skills/process-api-net11/SKILL.md

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License: MIT

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# Process API Improvements — .NET 11

New APIs added to `System.Diagnostics.Process` in .NET 11 simplify process management, eliminate boilerplate, and prevent common deadlock patterns when capturing output in .NET 11 or later applications.

## When to Use

- Running or orchestrating external processes in a .NET 11 (or later) project.
- Needing to start a process, wait for it to exit, and capture its output/error streams without risking deadlocks (`Process.RunAndCaptureText[Async]`).
- Wanting to ensure child processes are automatically terminated when the parent process exits (`KillOnParentExit`).
- Requiring lightweight, low-overhead process creation via `SafeProcessHandle` on supported platforms.
- Requiring fine-grained control over handle inheritance (`InheritedHandles`) or starting detached processes (`StartDetached`).

## When Not to Use