app-platform-sandbox
Installation
SKILL.md
Sandbox Skill
Isolated execution environments for AI agents and testing workflows.
Philosophy
Lambda/Functions: Fast cold start, 15-min limit, stateless, per-ms billing
App Platform Sandbox: 30s cold start (or instant with pool), unlimited duration, stateful, per-hour billing
Sweet spot: Long-running, stateful, iterative workflows where agents need to
install packages, run code, check results, modify, repeat.