Function isValidAnthropicApiKey

extensions/cli/src/util/apiKeyValidation.ts:6–15

(
  apiKey: string | null | undefined,
)

 * @returns true if the API key is valid, false otherwise
 */
export function isValidAnthropicApiKey(
  apiKey: string | null | undefined,
): boolean {
  if (!apiKey || typeof apiKey !== "string") {
    return false;
  }

  // Anthropic API keys must start with "sk-ant-" and have additional characters
  return apiKey.startsWith("sk-ant-") && apiKey.length > "sk-ant-".length;
}

/**
 * Gets a user-friendly error message for invalid API keys