An operator can hold a raw Anthropic API key and a Claude subscription OAuth
login at once, and the raw key always won silently. A stale or revoked saved
key therefore shadowed a working subscription and failed every direct Anthropic
call with 401 invalid x-api-key, while both Settings cards still read Active.
Add the global anthropicAuthPreference setting ("api-key" default, preserving
the historical precedence, or "subscription"), read in resolveAnthropicRuntimeApiKey
straight from ~/.fusion/settings.json so it applies without a restart and needs
no settings plumbing through createFusionAuthStorage. Neither value removes a
source: with one credential configured, resolution reaches it either way.
Settings -> Authentication now names the credential in use on the two Anthropic
cards and renders the control, but only when both are actually connected.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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