Architecture and design

Output contract: Use governed inputs and pinned clarification; publish/show configured artifacts. For suggested actions, pair Shell with the returned Copilot command; honor commandGuidance. If absent, say "Copilot: no verified equivalent"; never invent a slash command.

Boundary: singularity-flow session current --json → ready/workId, cwd=repositoryPath; use CLI/workItemRoot paths; never $HOME.

1. For the Boundary phase, run singularity-flow phase show <phase> --json. If policyVerified is false, show policyReason; stop. Continue only if effectiveAuthoringSkill is /sf-design, or /sf-phase with authoringSkill null and <phase> = design; else show Next in Copilot: effectiveAuthoringSkill and Terminal equivalent: singularity-flow prepare <phase>, or that a null route drafts nothing; stop. Its governed workflow is Story context.
2. Run singularity-flow wm compose --phase <phase> and use its complete prompt. If WM is missing/unreachable/stale, continue with zero-context evidence and repository access; show recovery as optional, never prerequisite. Never derive --task from Story text. Use available architecture/security evidence.
3. Read the approved inputs the composed prompt names and relevant uploads; inspect grounding-selected source.
4. Run singularity-flow clarification status <phase> --json. For off, do not ask or record; continue. For when-needed, ask and record only for material ambiguity; otherwise continue. For required, use ask_user once, wait and record before preparation; if unavailable, display the questions and stop; even when evidence looks complete, confirm boundaries, contracts, failures, and tradeoffs. Record via singularity-flow clarification record <phase> --response-file <file>.
5. Run singularity-flow prepare <phase> and complete the returned document.
6. Cover components, interfaces, data flow, alternatives, compatibility, security, privacy, observability, migration, rollout/rollback, risks, and implementation order.
7. State assumptions and tradeoffs. Do not implement production code.
8. Run singularity-flow phase draft-check <phase> --json, then singularity-flow phase prepublish <phase> --json. If unready, run read-only singularity-flow recover <WORK-ID> --phase <phase> --json; stay in this phase. Correct every agent finding now from governed evidence only when correction.sameTurn; otherwise route to its owner/regenerator. Recheck up to three changed fingerprints and stop on an unchanged fingerprint. Never blindly delete markers, invent facts or padding, invoke a nested model, or overwrite another producer.
9. Only when prepublish status is ready, publish with its exact configured producer/channel. Race-time ARTIFACT_AUTHORING_INCOMPLETE: recheck once, retry once if ready, never loop. Never submit or approve.
10. Run singularity-flow phase show <phase> --json; retain displayBinding and reviewBinding. Reuse bodies only from a complete visible same-chat display with exactly matching non-null displayBinding. Otherwise reproduce every published text document in full: ID/kind/path/bytes/generation/SHA-256 and --- BEGIN <path> --- / --- END <path> ---. New chat, changed/null binding, omissions or truncation require full display. Tool output or summaries are not review. Binary: path/metadata/open instruction. Show the current reviewBinding; body reuse never reuses approval consent.
11. Report commit and tokens. End with each returned handoff: Next in Copilot: /sf-… from its copilotCommand, then Terminal equivalent: singularity-flow … from its command; do not submit or approve.