Aspire 13.2 Release: CLI, TypeScript AppHost, and Dashboard Updates

Microsoft has released .NET Aspire 13.2, introducing a suite of updates designed to streamline local development for cloud-native applications. The release is highlighted by the introduction of TypeScript AppHost authoring and a command-line interface (CLI) specifically engineered for integration with AI coding agents.

.NET Aspire is an opinionated stack for building cloud-native applications, providing tools for orchestration, components for common services and a dashboard for observability. Version 13.2 focuses on expanding the ecosystem’s reach to non-C# developers and improving how automated AI tools interact with the development environment.

AI-Agent Native CLI Capabilities

A primary focus of the 13.2 release is the creation of a CLI that provides coding agents with the structure and visibility required to perform complex tasks without manual human intervention. This includes the implementation of a Model Context Protocol (MCP) and Aspire-specific skills that allow agents to manage the application lifecycle programmatically.

The new CLI introduces several specialized commands and flags to support automated workflows:

• The –detach mode allows agents to start the AppHost in the background.
• The –isolated flag enables agents to spin up parallel environments with separate secrets and random ports, preventing conflicts across different git worktrees.
• The aspire wait command allows agents to monitor resource statuses, such as waiting for an API to be healthy before proceeding to the next action.
• The aspire doctor command provides environment validation before an agent begins building.
• The aspire docs command integrates aspire.dev documentation directly into agent workflows for programmatic retrieval.

These tools are designed to eliminate the need for developers to manually copy-paste logs, restart processes, or provide screenshots to AI agents during the debugging and development process.

TypeScript AppHost and Multi-Language Support

Aspire 13.2 introduces a preview of TypeScript AppHost authoring. This shift expands the ability to define and orchestrate application resources beyond the C# ecosystem, providing better multi-language support for developers.

For those utilizing the TypeScript apphost, the update process involves running the aspire restore command. Developers using a C# apphost can upgrade their hosting and client integrations through NuGet by referencing Aspire version 13.2.0 in the Aspire.AppHost.Sdk package.

Infrastructure and Dashboard Improvements

The release includes updates to the Aspire dashboard to improve the developer experience and introduces a unified aspire.config.json to simplify the management of settings files. The update provides first-class management for secrets and certificates, as well as an aspire export feature for creating debug snapshots.

Microsoft noted that this version includes infrastructure improvements intended to facilitate more frequent stable releases moving forward.

Upgrade Paths

Users can upgrade to the new version using the aspire update –self command to update the CLI, or the aspire update command to update all Aspire packages within their apphost.

For fresh installations, the CLI can be installed via a shell script for Bash or a PowerShell script provided by the official aspire.dev domain.