Start with docs/ONBOARDING.md — repository map, mandatory read order, protocol locations, development modes, verification ladder, and authoritative artifact guide.
Issues live in GitHub Issues (jonocodes/deckd). See docs/agents/issue-tracker.md.
Default five-label vocabulary (needs-triage, needs-info, ready-for-agent, ready-for-human, wontfix). See docs/agents/triage-labels.md.
Single-context layout (CONTEXT.md + docs/adr/ at repo root). See docs/agents/domain.md.
System diagram and documentation index at docs/ARCHITECTURE.md.