SuperBizAgent-java/openspec/changes/archive/2026-07-04-evidence-trace-hardening/specs/chat-verifier-agent/spec.md

ADDED Requirements

Requirement: Verifier inputs SHALL tolerate hardened no-evidence semantics

The verifier integration SHALL continue to work when evidence summaries distinguish failed calls, no-hit calls, and deduped retrievals more explicitly.

Scenario: Failed evidence remains a verifier-visible gap

• WHEN an evidence-bearing tool invocation fails
• THEN the verifier-facing trace summary SHALL preserve that failure as a gap
• AND the verifier flow SHALL continue without crashing

Scenario: Deduped retrievals do not count as fresh support

• WHEN the verifier-facing trace summary contains deduped lookup_knowledge entries
• THEN those entries SHALL be treated as no-new-evidence
• AND they SHALL NOT be interpreted as fresh direct support for the answer