Eco Derive Claim Scope

Core Goal

• Read claim clusters from the analysis plane when available, otherwise fall back to claim candidates.
• Infer compact claim scope proposals for matching and challenge review.
• Persist a scope artifact for evidence coverage and board workflows.

Triggering Conditions

• Claim-side evidence exists but claim scope is still underspecified.
• Matching and challenge review need explicit scope labels and tags.
• Need a bridge artifact before evidence coverage scoring or board work.

Read/Write Contract

• Loads claim-cluster result sets from the analysis plane first and falls back to claim-candidate results only when the preferred cluster result is missing.
• Uses claim_candidate_clusters_<round_id>.json / claim_candidates_<round_id>.json as the default artifact paths behind those result kinds.
• Writes runs/<run_id>/analytics/claim_scope_proposals_<round_id>.json by default.