Why: The approved written amendment needs executable, reviewable steps for explicit test accounting and independent native sandbox replay.
Evidence: Current Dev and RDM source inspection, failed Dev make test receipt, local KVM/tool availability, official Go, Ubuntu and QEMU documentation, plan link and diff checks.
Impact: Documents only. No candidate execution, runner configuration, source lock or gate behavior changes.
Refs: Documents design 1790cf8; Dev PR #537; Documents PR #100
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