A new direction for AI developer tooling (Friends)

The Changelog: Software Development, Open Source

Elixir creator, José Valim, is throwing his hat into the coding agent ring with Tidewave –a coding agent for full-stack web development. Tidewave runs in the browser alongside your app, but it’s also deeply integrated into Rails and Phoenix. On this episode, José tells us all about it. Also: his agent flow, YOLO mode, an MCP hot take, and more.

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Sponsors:

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Featuring:

• José Valim – Website, GitHub, X
• Jerod Santo – GitHub, LinkedIn, Mastodon, X
• Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X

Show Notes:

• Tidewave
• Agent Client Protocol
• Model Context Protocol

Something missing or broken? PRs welcome!

Bab

1. Let's talk! (00:00:00)

2. Sponsor: Depot (00:00:38)

https://depot.dev

3. Travel & Friends (00:02:49)

4. Claude 4.5 dropped (00:09:11)

5. Tricking your AI (00:12:18)

6. Actual vs perceived value (00:14:53)

7. Intro to Tidewave (00:19:21)

8. José's agent flow (00:21:42)

9. Adam's agent flow (00:25:02)

10. Sponsor: Fabi.ai (00:27:30)

https://www.fabi.ai

11. Agents for prototypes (00:29:41)

12. YOLO mode notifier (00:31:39)

13. Competing with Phoenix.new (00:33:30)

14. For local devs (00:36:14)

15. Not just in the browser (00:38:09)

16. The Tidewave experience (00:42:11)

17. Sponsor: Miro (00:47:36)

https://miro.com

18. Frontend agent limits (00:48:46)

19. The solutions architect (00:50:38)

20. Back 15 minutes (00:55:21)

21. Impressive testing strategy (00:56:14)

22. MCP hot take (00:59:22)

23. Tidewave models (01:03:44)

24. MCP's meteoric rise (01:06:24)

25. Tidewave business model (01:10:50)

26. Claude Code integration (01:14:35)

27. Adam's Amp use (01:16:30)

28. The benefits of ACP (01:18:15)

29. Bye, friends (01:28:13)

30. Closing thoughts (01:28:27)