Claude: text content blocks must contain non-whitespace text

[colinmollenhour]

Describe the bug

I installed mods using brew, changed the config to set the model to "claude3.5-sonnet", added my ANTHROPIC_API_KEY to the environment and then ran "mods" to test which works fine. However, when I pipe input to any "mods -f" command I get this error:

$ curl -q ipinfo.io | mods -f "Who is my ISP?" | glow

   ERROR  anthropic API request error.  

  error, status code: 400, message: system: text content blocks must contain non-whitespace text 

Setup

• OS: Ubuntu 22.04 via WSL2
• Shell: bash
• Terminal Emulator: any
• Terminal Multiplexer: none

Expected behavior
Some output from the AI model rather than an API request error.