[BUG] Getting Please run /login · API Error: 403 on skill load when using with LiteLLM

Resolved 💬 3 comments Opened Apr 17, 2026 by aditya-angelone-tech Closed May 27, 2026

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

Skill(logs-reader)
⎿  Successfully loaded skill
⎿  Please run /login · API Error: 403 <html>
<head><title>403 Forbidden</title></head>
<body>
<center><h1>403 Forbidden</h1></center>
</body>
</html>

Setup: Latest Claude code 2.1.112 with LiteLLM + Bedrock for inference

When invoking a skill getting above error.
It works if we add /debug before invoking the skill.
Somehow looks like ANTHROPIC_BASE_URL is not getting propagated when skill execution is happening in non-debug mode.

What Should Happen?

The skill must run normally without error

Error Messages/Logs

Successfully loaded skill                                                                                                                                                                                   
  ⎿  Please run /login · API Error: 403 <html>                                                                                                                                                                     
     <head><title>403 Forbidden</title></head>
     <body>                                                                                                                                                                                                        
     <center><h1>403 Forbidden</h1></center>                                                                                                                                                                       
     </body>                                                                                                                                                                                                       
     </html>

Steps to Reproduce

Setup LiteLLM + Bedrock proxy and point claude code to it
Try loading and executing a skill.

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.112

Platform

Other

Operating System

macOS

Terminal/Shell

Warp

Additional Information

_No response_

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