An agent skill for building developer tools and playgrounds on Val Town. Provides opinionated patterns for creating single-purpose utilities that serve both a human UI and a programmatic API from one HTTP endpoint.
claude skill install https://val-tool-playground-skill.val.run/.well-known/skills/val-tool-playground/SKILL.md
This skill implements the Agent Skills Discovery RFC via well-known URIs.
GET https://val-tool-playground-skill.val.run/.well-known/skills/index.json
Agents can discover and fetch the skill automatically:
GET /.well-known/skills/index.json → skill index
GET /.well-known/skills/val-tool-playground/SKILL.md → skill instructions
GET /.well-known/skills/val-tool-playground/references/pico-ui-patterns.md → UI patterns reference