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[Bug] Bedrock Runtime Error (400 ValidationException) when using base_url in WSL2 #13811
Description
Description
Description
I am encountering a 400 ValidationException related to AWS Bedrock Runtime when attempting to use OpenCode. The error indicates that the request sent to the model contains empty text content blocks (text content blocks must be non-empty).
I am running OpenCode inside WSL2, connecting to a custom model provider via base_url.
Steps to Reproduce
- Version: OpenCode v1.2.5
- Environment: WSL2 (Windows Subsystem for Linux).
- Configuration:
- Model:
claude-3-5-sonnet-20241022 - Setup: Configured using a
base_url(Custom OpenAI-compatible endpoint).
- Model:
- Action: Run any command or prompt (e.g., querying model config
/modelor a simple chat). - Result: The operation fails immediately with the error log below.
Error Log
InvokeModelWithResponseStream: operation error Bedrock Runtime: InvokeModelWithResponseStream, https response error StatusCode: 400, RequestID: 8d37f0eb-3215-47a8-bae8-5603b8bb79b1, ValidationException: messages: text content blocks must be non-empty (request id: 20260216073702136854627CfvE55fd) (request id: 20260216073702104225029NXXEHzVZ)
### Plugins
oh-my-opencode
### OpenCode version
v1.2.5
### Steps to reproduce
_No response_
### Screenshot and/or share link
_No response_
### Operating System
wsl2
### Terminal
_No response_
Activity
github-actions commentedon Feb 16, 2026
This issue might be a duplicate of or related to existing issues involving empty content validation:
Please check these issues to see if your issue is already being tracked or if there's an existing workaround.
github-actions commentedon Apr 18, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.