Build and query the SDD artifact graph. Use when the user wants to validate frontmatter edges, find impact/ancestors/chain for an ADR or spec, detect orphans or cycles, or backfill edges from prose. Currently supports validate / impact / ancestors / chain / orphans / cycles, with workspace-mode aggregation; backfill lands in Story 7.
$npx -y skills add joestump/claude-plugin-sdd --skill graphInstalls into the current project.
Run `npx skills use "https://github.com/joestump/claude-plugin-sdd" --skill "joestump/claude-plugin-sdd/graph"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/joestump/claude-plugin-sdd" that are relevant to the current task. Run `npx skills add "https://github.com/joestump/claude-plugin-sdd"` and select the relevant skills, then follow their instructions.