Use when adding new error messages to React, or seeing "unknown error code" warnings.
npx skills add nbbaier/agent-skills --skill "val-town-cli"
Install specific skill from multi-skill repository
# Description
Manage Val Town projects using the vt CLI. Use when working with Vals (Val Town serverless functions), syncing code to Val Town, creating HTTP endpoints, streaming logs, or managing Val Town branches. Triggers on tasks involving Val Town development, val creation/editing, or when user mentions "vt", "val town", or "vals".
# SKILL.md
name: val-town-cli
description: Manage Val Town projects using the vt CLI. Use when working with Vals (Val Town serverless functions), syncing code to Val Town, creating HTTP endpoints, streaming logs, or managing Val Town branches. Triggers on tasks involving Val Town development, val creation/editing, or when user mentions "vt", "val town", or "vals".
Val Town CLI
The vt CLI manages Val Town projects locally. Key concepts:
- Val: A serverless function/project hosted on Val Town
- HTTP Val: A val that serves HTTP requests (filename must contain "http", e.g., index.http.tsx)
- Branch: Version control within a val (not git branches)
Quick Reference
| Task | Command |
|---|---|
| Create new val | vt create my-val |
| Clone existing | vt clone username/valName |
| Push changes | vt push |
| Pull updates | vt pull |
| Auto-sync | vt watch |
| View in browser | vt browse |
| Stream logs | vt tail |
| Check status | vt status |
| List your vals | vt list |
Common Workflows
Create and develop a new val
vt create my-api
cd my-api
# Edit files...
vt push
vt browse # Open in browser
Clone and modify existing val
vt clone username/valName
cd valName
# Edit files...
vt push
Live development with auto-sync
cd my-val
vt watch # Syncs on every file save
Work on a feature branch
cd my-val
vt checkout -b my-feature
# Make changes...
vt push
vt checkout main
File Naming Conventions
Val Town detects file types by naming patterns:
| Pattern | Val Type |
|---|---|
*.http.ts, *.http.tsx |
HTTP endpoint |
*.cron.ts |
Scheduled cron job |
*.email.ts |
Email handler |
Other .ts/.tsx files |
Script val |
Example: To create an HTTP API, name the file api.http.ts or index.http.tsx.
Command Details
Create
vt create my-val # New val in ./my-val
vt create my-val ./existing-folder # Upload existing files
vt create my-val --private # Private val
vt create my-val --org-name myorg # Under an organization
Clone
vt clone # Interactive selection
vt clone username/valName # By name
vt clone https://www.val.town/x/user/val # By URL
vt clone username/valName . # Into current directory
Remix
Fork someone else's val:
vt remix std/reactHonoStarter myWebsite
cd myWebsite
vt watch
Branches
vt branch # List branches
vt checkout main # Switch branch
vt checkout -b feature # Create new branch
vt branch -D feature # Delete branch
Logs
vt tail # Stream current val's logs
vt tail @user/valName # Stream specific val
vt tail --print-headers # Include HTTP headers
vt tail --reverse-logs # Latest first
Configuration
vt config options # List options
vt config set dangerousOperations.confirmation false # Disable confirmations
vt config ignore # Edit global .vtignore
Project Structure
After cloning/creating, a val directory contains:
- .vt/ - Metadata (like .git)
- .vtignore - Files to exclude from sync
- deno.json - Deno LSP configuration
- Source files (.ts, .tsx, etc.)
Tips
- Use
vt push --dry-runto preview changes before pushing - Use
vt checkout --dry-runto preview branch switch effects - HTTP vals require "http" in the filename to be recognized as endpoints
- The
vt watchcommand enables live reloading with the browser companion extension
# Supported AI Coding Agents
This skill is compatible with the SKILL.md standard and works with all major AI coding agents:
Learn more about the SKILL.md standard and how to use these skills with your preferred AI coding agent.