Harness creates a documentation-first repository layout.
README.md: project overview and quick orientation.AGENTS.md: operating rules for implementation agents working in the repository.CHANGELOG.md: notable release history.REVIEW.md: reviewer and validation-subagent guide.ARCHITECTURE.md: architecture notes and invariants.PLANS.md: ExecPlan standard.PRODUCT_SPECS.md: product-spec authoring standard.harness.config.json: minimal scaffold metadata.features/features/product-specs/: versioned requirements.features/design-docs/: design rationale and core beliefs.features/exec-plans/active/: living implementation plans.features/exec-plans/completed/: historical plans.features/generated/: validation and review artifacts, organized by execution day.features/tech-debt-tracker.md: deferred work.The scaffold is intentionally generic, but it already encodes the requirement that non-trivial implementation must be followed by an independent validation-subagent pass, guided by REVIEW.md, before the work is considered complete.