feat: Improve fallback provider selection with API key validation

[open-swe]

Fixes #777

Owner: @bracesproul

Changes

This PR implements a robust mechanism to filter fallback providers based on API key availability:

• Added hasApiKeyForProvider() method to ModelManager to safely check API key configuration
• Modified getModelConfigs() to skip providers without valid API keys
• Enhanced FallbackRunnable error handling to provide clear feedback when no fallback providers are available

Key Improvements

• Prevent attempting to use providers without configured API keys
• Add logging for skipped providers
• Improve error messages when no valid fallback options exist
• Maintain support for allowed users

Technical Details

• Updated /src/utils/llms/model-manager.ts

  • New hasApiKeyForProvider() method
  • API key availability filtering in fallback provider selection

• Updated /src/utils/runtime-fallback.ts

  • Improved error handling for fallback scenarios
  • Added checks for provider API key availability

Testing

• Verified API key validation works correctly
• Ensured allowed users can still use the system
• Confirmed clear error messaging when no fallbacks are available

Resolves the issue of indiscriminate provider fallback when API keys are not configured.

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Project	Deployment	Preview	Comments	Updated (UTC)
open-swe-web	Ready	Preview	Comment	Aug 19, 2025 6:55pm
open-swe-web-langgraph	Ready	Preview	Comment	Aug 19, 2025 6:55pm