Aspire — Polyglot Distributed-App Orchestration

Aspire is a code-first, polyglot toolchain for building observable, production-ready distributed applications. It orchestrates containers, executables, and cloud resources from a single AppHost project — regardless of whether the workloads are C#, Python, JavaScript/TypeScript, Go, Java, Rust, Bun, Deno, or PowerShell.

Mental model: The AppHost is a conductor — it doesn't play the instruments, it tells every service when to start, how to find each other, and watches for problems. The AppHost can be written in C# (all versions) or TypeScript (preview in 13.2/13.3, GA in 13.4).

Detailed reference material lives in the references/ folder — load on demand.

Project-local Aspire skills win. aspire agent init / aspire init / aspire new can install Aspire's own skills into the repo (e.g. .agents/skills/aspire/SKILL.md, .agents/skills/aspireify/SKILL.md, or the matching .claude/skills/... / .github/skills/... locations). If such a skill exists, tell the user and follow it for workflow details — it is pinned to the repo's CLI version. The guardrails below still apply.

References