Bedrock connect dialog shows generic API key form instead of IAM credentials

[tristan-stahnke-GPS]

Description

Clicking "Connect Amazon Bedrock" in the UI (desktop or web) shows a generic "API key" input form. Bedrock doesn't use API keys — it uses AWS IAM credentials, profiles, or other AWS credential chain methods. This makes it impossible to connect to Bedrock through the UI. Additionally, the Bedrock model list shows ~95 models including redundant regional duplicates (eu., us., global. prefixed variants of the same models), making model selection overwhelming.

Plugins

None

OpenCode version

latest (dev branch)

Steps to reproduce

STEPS TO REPRODUCE:

1. Open OpenCode (desktop or web)
2. Go to settings or run /connect
3. Select "Amazon Bedrock"
4. Observe the generic API key input form instead of AWS IAM credentials fields

Screenshot and/or share link

Operating System

macOS 26.3

Terminal

iTerm2,desktop app on mac