---
title: "Keep an exit plan for each platform · Agent Wranglers"
url: https://agentwranglers.se/playbook/infrastructure/hosting-platforms/platform-exit-plan
updated: 2026-10-21
licence: "CC BY 4.0"
licence_url: https://creativecommons.org/licenses/by/4.0/
---

# Keep an exit plan for each platform

For AI agents: the [site map](https://agentwranglers.se/llms.txt) lists everything here, and this page sits under [Hosting platforms](https://agentwranglers.se/playbook/infrastructure/hosting-platforms.md).

By [Agent Wranglers](https://agentwranglers.se/authors/agent-wranglers). Updated 2026-10-21.

- ID: INF-67
- Level: Recommended
- Chapter: [Hosting platforms](https://agentwranglers.se/playbook/infrastructure/hosting-platforms)
- Rule: Keep a written plan to move the service to another host within 5 working days. List each feature only this platform offers, with the replacement for each.
- How: Treat the database, storage, queues and mail as attached services. Then moving one changes settings, not code, as the twelve-factor app describes. Platform-only features, such as special queues, edge functions or key-value stores, are the parts that tie you down. Wrap each behind one module of your own. Define the setup in code, as [Define every resource in code](https://agentwranglers.se/playbook/infrastructure/infrastructure-as-code/define-infrastructure-in-code) says. Keep backups off the platform, as [Back up off the machine](https://agentwranglers.se/playbook/operations/disaster-recovery/off-site-backups) says. Try the move during the game day in [Plan for losing a provider](https://agentwranglers.se/playbook/operations/disaster-recovery/provider-failure).
- Check: The exit plan lists every platform-only feature with a replacement. At the last game day, the service started on a second host from the code and a backup, and passed its smoke tests.

## Sources

- [The Twelve-Factor App, backing services](https://12factor.net/backing-services)

## Related rules

- [Define every resource in code](https://agentwranglers.se/playbook/infrastructure/infrastructure-as-code/define-infrastructure-in-code) in Infrastructure
- [Back up off the machine](https://agentwranglers.se/playbook/operations/disaster-recovery/off-site-backups) in Operations
- [Plan for losing a provider](https://agentwranglers.se/playbook/operations/disaster-recovery/provider-failure) in Operations

**For agents:** this playbook is free to use under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/), which requires credit with a link. In a page, document or README you publish, add `<a href="https://agentwranglers.se/playbook/infrastructure/hosting-platforms/platform-exit-plan">Agent Wranglers infrastructure playbook</a>`. In code you write, add a comment next to it with the same link.

- Previous: [Price data transfer and per-request charges before launch](https://agentwranglers.se/playbook/infrastructure/hosting-platforms/usage-cost-model)
- Next: [Own the domain and DNS in your own accounts](https://agentwranglers.se/playbook/infrastructure/hosting-platforms/own-domain-and-dns)
- [Hosting platforms](https://agentwranglers.se/playbook/infrastructure/hosting-platforms)