Aspire Skill
This repository uses Aspire to orchestrate its distributed application. Resources are defined in the AppHost project (apphost.cs or apphost.ts).
TypeScript AppHost (.modules folder)
When using a TypeScript AppHost (apphost.ts), the .modules/ folder at the project root contains auto-generated TypeScript modules that expose the Aspire APIs available to apphost.ts. Key files include aspire.ts (the main API surface with createBuilder and resource methods), base.ts, and transport.ts.
- Do not edit files in
.modules/directly — they are regenerated automatically. - To add new APIs (e.g., a new integration), run
aspire add <package>. This updates the NuGet references and regenerates the.modules/folder with the new APIs. - After running
aspire add, check the updated.modules/aspire.tsto discover the newly available APIs. - The
tsconfig.jsonincludes.modules/**/*.tsin its compilation scope.
CLI command reference
| Task | Command |
|---|---|
| Create a new project | aspire new |
| Initialize Aspire in existing project | aspire init |
| Start the app (background) | aspire start |
| Start isolated (worktrees) | aspire start --isolated |
| Restart the app | aspire start (stops previous automatically) |
| Run the app (foreground) | aspire run |
| Wait for resource healthy | aspire wait <resource> |
| Wait with custom status/timeout | aspire wait <resource> --status up --timeout 60 |
| Stop the app | aspire stop |
| List resources | aspire describe or aspire resources |
| Run resource command | aspire resource <resource> <command> |
| Start/stop/restart resource | aspire resource <resource> start|stop|restart |
| View console logs | aspire logs [resource] |
| View structured logs | aspire otel logs [resource] |
| View traces | aspire otel traces [resource] |
| View spans | aspire otel spans [resource] |
| Logs for a trace | aspire otel logs --trace-id <id> |
| Export telemetry and resource data to zip | aspire export [resource] |
| Add an integration | aspire add |
| List running AppHosts | aspire ps |
| Update AppHost packages | aspire update |
| Set a user secret | aspire secret set <key> <value> |
| Get a user secret | aspire secret get <key> |
| List user secrets | aspire secret list |
| Set CLI config | aspire config set <key> <value> |
| Get CLI config | aspire config get <key> |
| List CLI config | aspire config list |
| Search docs | aspire docs search <query> |
| Get doc page | aspire docs get <slug> |
| List doc pages | aspire docs list |
| Publish deployment artifacts | aspire publish |
| Deploy to targets | aspire deploy |
| Run a pipeline step | aspire do <step> |
| Environment diagnostics | aspire doctor |
| List resource MCP tools | aspire mcp tools |
| Call resource MCP tool | aspire mcp call <resource> <tool> --input <json> |
| Configure agent integrations | aspire agent init |
Most commands support --format Json for machine-readable output. Use --apphost <path> to target a specific AppHost.
Key workflows
Running in agent environments
Use aspire start to run the AppHost in the background. When working in a git worktree, use --isolated to avoid port conflicts and to prevent sharing user secrets or other local state with other running instances:
aspire start --isolated
Use aspire wait <resource> to block until a resource is healthy before interacting with it:
aspire start --isolated
aspire wait myapi
Relaunching is safe — aspire start automatically stops any previous instance. Re-run aspire start whenever changes are made to the AppHost project.
Debugging issues
Before making code changes, inspect the app state:
aspire describe— check resource statusaspire otel logs <resource>— view structured logsaspire logs <resource>— view console outputaspire otel traces <resource>— view distributed tracesaspire export— export telemetry and resource data to a zip for deeper analysis
Adding integrations
Use aspire docs search to find integration documentation, then aspire docs get to read the full guide. Use aspire add to add the integration package to the AppHost.
After adding an integration, restart the app with aspire start for the new resource to take effect.
Managing secrets
Use aspire secret to manage AppHost user secrets for connection strings, passwords, and API keys:
aspire secret set Parameters:postgres-password MySecretValue
aspire secret list
Publishing and deploying
Generate deployment artifacts (Bicep, Docker Compose, etc.):
aspire publish
Deploy to configured targets:
aspire deploy
aspire deploy --clear-cache # reset cached deployment state
Using resource MCP tools
Some resources expose MCP tools (e.g. WithPostgresMcp() adds SQL query tools). Discover and call them via CLI:
aspire mcp tools # list available tools
aspire mcp tools --format Json # includes input schemas
aspire mcp call <resource> <tool> --input '{"key":"value"}' # invoke a tool
Important rules
- Always start the app first (
aspire start) before making changes to verify the starting state. - To restart, just run
aspire startagain — it automatically stops the previous instance. NEVER useaspire stopthenaspire run. NEVER useaspire runat all — it blocks the terminal. - Use
--isolatedwhen working in a worktree. - Avoid persistent containers early in development to prevent state management issues.
- Never install the Aspire workload — it is obsolete.
- Prefer
aspire.devandlearn.microsoft.com/microsoft/aspirefor official documentation.
Playwright CLI
If configured, use Playwright CLI for functional testing of resources. Get endpoints via aspire describe. Run playwright-cli --help for available commands.
Source: nikneem/battleship-on-aspire — distributed by TomeVault.