feat: evidence source provenance (EvidenceMapping) support - #840
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feat: evidence source provenance (EvidenceMapping) support#840marcusburghardt wants to merge 1 commit into
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Add OpenSpec change artifacts for plumbing the Gemara EvidenceMapping (source field) through complyctl's evidence pipeline. This enables providers to report evidence provenance -- which artifact, location, and content digest each evidence entry was collected from. Artifacts: - proposal.md: motivation and scope - specs/evidence-source/spec.md: behavioral requirements - design.md: technical decisions and approach - tasks.md: implementation checklist Assisted-by: OpenCode (claude-opus-4-6) Signed-off-by: Marcus Burghardt <maburgha@redhat.com>
jpower432
reviewed
Sep 5, 2026
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| **Non-Goals:** | ||
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| - OSCAL output evidence support (separate concern, no upstream |
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In OSCAL Assessment Results there is an relevant_evidence field under observations. If we are using the upstream conversion (we should be), I submitted an issue to add support gemaraproj/go-gemara#127
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Summary
Plumb the Gemara
#EvidenceMapping(sourcefield) through complyctl'sentire evidence pipeline, enabling providers to report where evidence
was collected from.
Context
The Gemara CUE schema (
evaluationlog.cueline 73,auditlog.cuelines 78-97) defines
#Evidencewith asourcefield of type#EvidenceMappingthat records evidence provenance -- which artifact,which location within it, and a content digest. The go-gemara SDK already
exposes this as
Evidence.Source. complyctl's proto API currently defersthis field with a comment referencing an unwritten "ADR 0023".
This PR starts with the OpenSpec change artifacts only (proposal,
specs, design, tasks). Implementation will follow after review.
OpenSpec Artifacts
openspec/changes/evidence-source/proposal.mdopenspec/changes/evidence-source/specs/evidence-source/spec.mdopenspec/changes/evidence-source/design.mdopenspec/changes/evidence-source/tasks.mdScope
EvidenceMappingproto message +sourcefield onEvidenceEvidenceSourceGo type inpkg/provider/sourceare unaffectedRelated