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Question guards (also called consent gates or validation rules) are server-side validation rules on onboarding questions. They determine whether a participant is eligible to join a quest based on their answers.

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How They Work

  1. Participant fills out onboarding questions
  2. Answers are sent to the server: POST /quest/validate-onboarding
  3. Every question with a guard is evaluated
  4. If any guard fails → participant is blocked with rejection messages
  5. If all guards pass → participant can proceed to join
Guard validation is server-side — it cannot be bypassed by participants.

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Guard Configuration

Each guard has three fields:

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Available Operators

Which operators are available depends on the question’s response type:

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Operator Details

When you change a question’s response type, the operator resets to the first valid option if the current operator is no longer available for the new type.

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Rejection Behavior

When a participant fails validation:
  • Per-question: Each failed question shows its rejection message in a red inline box below the question
  • Global: A yellow warning banner appears: “You do not meet the eligibility criteria for this quest.”
  • The participant cannot proceed and cannot join the quest

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Adding a Guard

  1. Open a quest and navigate to the onboarding section
  2. Click on an onboarding question (or add a new one)
  3. Check “Add validation rule (consent gate)”
  4. Select an operator from the dropdown
  5. Enter the expected value
  6. Optionally customize the rejection message

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Worked Examples

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Must Be 18 or Older

Behavior: If a participant enters 17, they see the rejection message and cannot join. Behavior: If a participant selects “No”, they see the rejection message and cannot join.

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Must Be in Target Demographic

Behavior: If a participant selects “Retired” or “Other”, they see the rejection message and cannot join.

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Exclude a Specific Condition

Behavior: If a participant selects “Yes”, they see the rejection message and cannot join.