What you will build
A predictable abstention path that explains why no answer was produced and what evidence was missing.
Inputs and ownership
- Bounded use case
- Required evidence definition
- Approved response language
Blueprint
This illustrates the governed fields to define during onboarding; it is not a public production API contract.
{
"required_basis": ["active_source", "claim_support"],
"on_missing_basis": {
"action": "abstain",
"reason_visible": true
}
}Build it step by step
- 01
Define minimum evidence
List the source types or claim support required before the system may answer.
- 02
Choose the silence response
Use language that is clear to users and does not imply a hidden answer exists.
- 03
Test edge cases
Run partial, expired and conflicting evidence scenarios.
- 04
Audit abstentions
Confirm that the missing basis and applied policy are visible in the trace.
Prove the governed path
- The permitted path produces an answer from approved evidence.
- An unsupported request returns an explicit governed outcome.
- Every material claim resolves to a known knowledge unit.
- The decision can be rerun after a source version changes.