Review SDD task plans for execution blockers and return [OKAY] or [REJECT].
Mandatory step-0 requirements discovery for non-trivial work before any implementation or SDD routing decisions.
Resolve residual spec ambiguity in place before design, with a bounded taxonomy-driven clarification pass.
Guide a semver constitution amendment and Sync-Impact Report entry.
Execute SDD task lists with real-time progress tracking, sub-agent dispatch, and verification checkpoints.
Merge completed deltas into main specs and archive the change.
Create `design.md` as a technical solution design with architecture decisions and file changes.
Bootstrap OpenSpec structure and SDD context for a project.