sdd-orchestrate-flowlisted

# Orchestrate the SDD flow Coordinate contracts, execution, and acceptance. The coordinator maintains state and human decisions; subagents produce artifacts and code in exclusive scopes. 1. **Prepare or resume.** Read [references/hil-state.md](references/hil-state.md) in full and detect `tasks/prd-[slug]/checkpoint.json` before starting work. With an explicit feature, consult only its folder; without one, select the only pending checkpoint or request a choice if there are several. Automatically resume the valid checkpoint for the selected feature, without requiring a special flag. Without a checkpoint, reconcile existing artifacts before creating state; for a broad request not yet sliced, fix the slugs in step 2 before opening state. Locate the skills in the table below in the installed catalog or `SKILLS/`; leave each stage's body to its responsible agent. Before delegating, read [references/delegation.md](references/delegation.md) in full. On resume, load only the index, relevant decisions, and sources needed for the next stage. Check worktree, local instructions, subagent tools, and existing sources. Record the Git base as a resolved commit and pre-existing changes; without Git, record scope limits. Require dependencies for the next phase; a missing skill blocks only that phase, without inventing equivalent execution. Preserve existing invocation policies: pass the exact name and path explicitly to the subagent. **Output:** reconciled state, known authorization,