Function invalidateOAuthCacheIfDiskChanged

src/utils/auth.ts:1320–1336

()

// then revokes terminal 1 server-side, and terminal 1's memoize never
// re-reads — infinite /login regress (CC-1096, GH#24317).
async function invalidateOAuthCacheIfDiskChanged(): Promise<void> {
  try {
    const { mtimeMs } = await stat(
      join(getClaudeConfigHomeDir(), '.credentials.json'),
    )
    if (mtimeMs !== lastCredentialsMtimeMs) {
      lastCredentialsMtimeMs = mtimeMs
      clearOAuthTokenCache()
    }
  } catch {
    // ENOENT — macOS keychain path (file deleted on migration). Clear only
    // the memoize so it delegates to the keychain cache's 30s TTL instead
    // of caching forever on top. `security find-generic-password` is
    // ~15ms; bounded to once per 30s by the keychain cache.
    getClaudeAIOAuthTokens.cache?.clear?.()
  }
}

// In-flight dedup: when N claude.ai proxy connectors hit 401 with the same
// token simultaneously (common at startup — #20930), only one should clear