Modal Fundamentals

Use this skill when building, running, or deploying Modal applications from scratch or when you need to understand the core execution model and CLI.

Related serving primitives (SDK 1.5+): Servers (modal-servers) for long-lived HTTP processes; Auto Endpoints (modal-endpoints) for managed LLM APIs; Function web decorators remain in modal-web-serving.

When to Use This Skill

• Creating a new Modal App or Function
• Running ephemeral apps with modal run or modal serve
• Deploying persistent apps with modal deploy
• Writing local_entrypoint or remote entrypoints
• Managing Modal environments (dev/staging/prod)
• Understanding the App/Function/container relationship
• Looking up Modal CLI commands (run/serve/deploy/app/container/shell/secrets/volumes)
• Using async Modal APIs
• Structuring Modal projects