What type of agreement requires specific actions to qualify for insurance coverage?

The correct answer is warranty. A warranty in an insurance context is a specific promise or guarantee made by the insured concerning certain facts or conditions related to the insurance policy. This could involve adhering to specific standards, practices, or maintaining a certain condition of property that is being insured. If the insured party fails to meet these conditions, it could result in loss of coverage or denial of a claim.

By requiring these specific actions or conditions to be met, a warranty ensures that the insurer has a clear basis for providing coverage, which helps in minimizing the insurer’s risk and in ensuring that the insured does not take on undue risks.

In contrast, indemnity refers to a promise to compensate for a loss or damage, but it doesn't necessarily require specific actions to be taken for coverage to exist. Supplementary coverage refers to additional coverage options that may enhance a primary policy but do not typically impose conditions for validity. Similarly, an endorsement modifies the terms of the original policy and does not specifically set actions required for coverage.