Implement the code, advancing by proposal/tasks. A pre-command hook checks that proposal.md carries the required prerequisites. Verification model: cheap self-run working checks per node while implementing; ONE independent spec-verifier pass at the end (never dispatch verification subagents mid-implementation).
$npx -y skills add kamioj/spec-workflow --skill spec-applyInstalls into the current project.
Run `npx skills use "https://github.com/kamioj/spec-workflow" --skill "kamioj/spec-workflow/spec-apply"` 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/kamioj/spec-workflow" that are relevant to the current task. Run `npx skills add "https://github.com/kamioj/spec-workflow"` and select the relevant skills, then follow their instructions.