Execution Handoff Generator

Bridge planning → implementation. Produces and maintains {product_root}/docs/versions/{version_san}/execution-handoff.md — the single source of truth for task order, progress, and elapsed time.

requirements.md says what; tasks/task-NNN-*.md says how; execution-handoff.md says in what order and where execution stopped.

Harness discovery

See ../nextstage-harness/references/harness-discovery.md and ../nextstage-harness/references/artifact-layout.md.

When to use