Two fixes for Google Antigravity (Cloud Code Assist) reliability:
1. Forward-compat model fallback: pi-ai's model registry doesn't include
claude-opus-4-6-thinking. Add resolveAntigravityOpus46ForwardCompatModel()
that clones the opus-4-5 template so the correct api ("google-gemini-cli")
and baseUrl are preserved. Fixes#13765.
2. Fix thinking.signature rejection: The API returns Claude thinking blocks
without signatures, then rejects them on replay. The existing sanitizer
strips unsigned blocks, but the orphaned-user-message path in attempt.ts
bypassed it by reading directly from disk. Now applies
sanitizeAntigravityThinkingBlocks at that code path.
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
When using custom providers with inline model definitions, the baseUrl
and api properties from the provider config were not being passed to
the individual models. This caused requests to be sent to the wrong
endpoint or with the wrong API format.
Changes:
- buildInlineProviderModels now copies baseUrl from provider to models
- buildInlineProviderModels now inherits api from provider if not set on model
- resolveModel fallback path now includes baseUrl from provider config
Co-Authored-By: Claude (claude-opus-4.5) <noreply@anthropic.com>
When resolving models from custom provider configurations, ensure the
provider name is attached to each inline model entry. This fixes model
resolution for custom providers where the model definition exists in
the config but lacks an explicit provider field.
Without this fix, inline models from custom providers (like amazon-bedrock)
would fail to resolve because the provider context was lost during the
flatMap operation.
